How do Organisms Reproduce?
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Reproduction in animals and plants (asexual and sexual)
SubtopicReproduction in animals and plants (asexual and sexual) under How do Organisms Reproduce? for Grade 10 CBSE.
Preview questions (no answers)
- 1.
The sticky part of the carpel that receives pollen is the:
A.Style
B.Ovary
C.Stigma
D.Anther
- 2.
An advantage of sexual reproduction over asexual reproduction is that it:
A.Is faster
B.Requires only one parent
C.Produces genetic variation
D.Requires less energy
- 3.
DNA copying is essential during reproduction because it leads to:
A.No change in offspring
B.Variation in offspring
C.Death of the cell
D.Identical offspring only
- 4.
The function of the prostate gland and seminal vesicles is to:
A.Produce sperm
B.Add fluid to sperm for nutrition and transport
C.Cool the testes
D.Regulate hormones
- 5.
A student observes a slide of Yeast under a microscope and sees a small protrusion on the parent cell. This is an example of:
A.Binary fission
B.Multiple fission
C.Budding
D.Regeneration
- 6.
In humans, the sex of the child is determined by:
A.The type of egg fertilized
B.The type of sperm that fertilizes the egg
C.The health of the mother
D.The time of fertilization
- 7.
Which method of reproduction involves the production of new plants from roots, stems, and leaves?
A.Sexual reproduction
B.Vegetative propagation
C.Spore formation
D.Fragmentation
- 8.
In the human female, what triggers the release of the egg (Ovulation)?
A.A sudden drop in Estrogen.
B.A surge in the level of Luteinizing Hormone (LH).
C.A gradual increase in Progesterone.
D.The physical pressure of the growing fetus.
- 9.
Which of the following correctly describes 'Fragmentation'?
A.A unicellular organism dividing into two.
B.A multicellular organism with simple body design breaking into pieces, each growing into a new individual.
C.The growth of a new organism from a small part of the parent's body through budding.
D.The process of creating clones via DNA replication in a lab.
- 10.
During the 'Luteal Phase' of the menstrual cycle, what happens if fertilization does not occur?
A.The Corpus Luteum grows larger.
B.The Corpus Luteum degenerates, leading to a drop in Progesterone.
C.The level of LH spikes significantly.
D.The uterine lining continues to thicken indefinitely.
Download the worksheet for How do Organisms Reproduce? - Reproduction in animals and plants (asexual and sexual) to practice offline. It includes additional chapter-level practice questions.
Reproductive health
SubtopicReproductive health under How do Organisms Reproduce? for Grade 10 CBSE.
Preview questions (no answers)
- 1.
Sexual reproduction involves the fusion of:
A.Two male gametes
B.Two female gametes
C.One male and one female gamete
D.Any two somatic cells
- 2.
Which contraceptive method is placed inside the uterus by a doctor?
A.Condom
B.Copper-T
C.Oral pill
D.Vasectomy
- 3.
The surgical method that involves cutting the vas deferens is called:
A.Vasectomy
B.Tubectomy
C.IUCD
D.Diaphragm
- 4.
Hormonal pills are taken by:
A.Males only
B.Females only
C.Both males and females
D.Children only
- 5.
Sexually Transmitted Infections (STIs) are categorized based on their causative agents. According to the classification in the diagram, which group 'P' contains infections that are caused by viruses and are generally more difficult to cure completely with standard antibiotics compared to the bacterial group 'Q'?
A.Group P
B.Group Q
C.Both Group P and Group Q
D.Neither Group P nor Group Q
- 6.
Analyze the provided flowchart illustrating different birth control strategies. Which category 'Z' represents a method that is inserted by a medical professional and primarily functions by preventing the fertilized egg from attaching to the uterine wall?
A.Surgical sterilization
B.Intrauterine Devices (IUDs)
C.Chemical oral pills
D.Mechanical barrier methods
- 7.
In the given flowchart, a specific medical diagnostic technique 'X' is mentioned. While this technique is intended for monitoring fetal health and detecting genetic abnormalities, its misuse for determining the sex of the unborn child is strictly prohibited by law in India. Identify 'X'.
A.-ray imaging
B.Magnetic Resonance Imaging (MRI)
C.Ultrasound imaging
D.Electrocardiogram (ECG)
- 8.
A doctor advises a couple to use a combination of a mechanical barrier and a chemical method. Why might this be recommended?
A.To double the risk of infection.
B.To increase contraceptive efficiency and provide protection against STIs.
C.Because one method cancels out the other.
D.To ensure that fertilization happens in the uterus instead of the tube.
- 9.
Which part of the sperm contains enzymes that help it penetrate the outer layer of the egg?
A.Tail
B.Mitochondria in the middle piece
C.Acrosome in the head
D.Nucleus
- 10.
The average age of menarche (first menstruation) has been decreasing in many populations. This is primarily attributed to:
A.Evolution of a new species
B.Changes in nutrition and environmental factors
C.Widespread use of condoms
D.Better surgical contraceptive methods
Download the worksheet for How do Organisms Reproduce? - Reproductive health to practice offline. It includes additional chapter-level practice questions.
Safe sex vs HIV/AIDS
SubtopicSafe sex vs HIV/AIDS under How do Organisms Reproduce? for Grade 10 CBSE.
Preview questions (no answers)
- 1.
The primary focus of 'Safe Sex' is to:
A.Ensure reproduction happens quickly
B.Prevent transmission of infections and unintended pregnancy
C.Make sure the baby is healthy
D.Prevent all types of fevers
- 2.
How does HIV affect the White Blood Cells (WBCs)?
A.It increases their number
B.It helps them fight better
C.It attacks and decreases their number
D.It turns them red
- 3.
Safe sex prevents the spread of which of the following?
A.Cancer
B.Genetic disorders
C.STDs like HIV and Syphilis
D.Diabetes
- 4.
Which of the following describes a 'syndrome'?
A.A single symptom
B.A group of symptoms that occur together
C.A type of medicine
D.A type of virus
- 5.
Which of the following statements about the prevention of HIV is true?
A.There is a highly effective vaccine available for everyone
B.Prevention is currently the best 'cure' as there is no definitive medical cure for AIDS
C.Eating a high-protein diet prevents the virus from entering the body
D.Washing hands with soap after a handshake prevents HIV
- 6.
If a person is suspected of having an STD, what is the most appropriate next step according to health guidelines?
A.Ignore the symptoms and hope they go away
B.Seek medical advice and testing from a qualified professional
C.Self-medicate with leftover antibiotics
D.Hide the condition from everyone including doctors
- 7.
Which statement best describes the link between safe sex and population control?
A.Safe sex only prevents diseases, not pregnancy
B.Mechanical barriers used for safe sex also act as effective contraceptives
C.Safe sex practices encourage larger families
D.There is no link between the two
- 8.
In the context of safe sex, why is the 'correct and consistent' use of condoms emphasized?
A.Because the virus can only be stopped if the condom is worn for exactly 24 hours.
B.Because any slip, break, or failure to use one during a single encounter provides a window for transmission.
C.Because condoms only work during the full moon.
D.Because the virus only travels through the air if a condom is not present.
- 9.
If a person is 'HIV Positive' but does not have AIDS, what does this mean biologically?
A.They have the virus, but their immune system is still functioning well enough to prevent opportunistic diseases.
B.They have been cured of the virus but still have the antibodies.
C.They have a different, weaker version of the virus.
D.The virus is only in their hair and nails, not their blood.
- 10.
Why is the use of 'sterile needles' emphasized alongside 'safe sex' in HIV awareness campaigns?
A.Because the same virus (HIV) is present in the blood and can be transferred via contaminated needles.
B.Because needles are used to apply condoms.
C.Because the virus can only be killed by a needle prick.
D.Because needles and sex both affect the muscular system similarly.
Download the worksheet for How do Organisms Reproduce? - Safe sex vs HIV/AIDS to practice offline. It includes additional chapter-level practice questions.
Family planning
SubtopicFamily planning under How do Organisms Reproduce? for Grade 10 CBSE.
Preview questions (no answers)
- 1.
In the context of reproduction, what does 'Contraception' literally mean?
A.Against fertilization
B.Against conception
C.Against menstruation
D.Against ovulation
- 2.
Which method is specifically designed to prevent the 'implantation' of a fertilized egg?
A.Condoms
B.Copper-T
C.Vasectomy
D.Tubectomy
- 3.
Sexual act always has the potential to lead to:
A.Digestion
B.Pregnancy
C.Respiration
D.Excretion
- 4.
The ratio of females to males in a population is known as:
A.Birth rate
B.Death rate
C.Sex ratio
D.Growth rate
- 5.
The transmission of which disease can be checked by using a mechanical barrier?
A.Malaria
B.Gonorrhea
C.Diabetes
D.Cholera
- 6.
Which of the following procedures does not affect the production of gametes?
A.Vasectomy
B.Oophorectomy
C.Castration
D.None of these
- 7.
Which of these is a potential disadvantage of IUCDs?
A.They are permanent and irreversible
B.They may cause irritation and bleeding in the uterus
C.They must be taken daily
D.They prevent the formation of the egg
- 8.
Which of the following statements about 'MTP' (Medical Termination of Pregnancy) is correct under the MTP Act of India?
A.It is illegal under all circumstances.
B.It can be performed to save the life of the mother or in cases of fetal abnormalities.
C.It is allowed for gender selection.
D.It can be performed by anyone at home.
- 9.
How do spermicides like Nonoxynol-9 work?
A.They act as a vaccine against sperm.
B.They disrupt the cell membrane of the sperm, immobilizing it.
C.They cause the egg to harden its outer shell.
D.They increase the speed of sperm so they miss the egg.
- 10.
Which of the following is an example of an 'Emergency Contraceptive'?
A.Daily pill
B.Administration of high-dose progestogens within 72 hours of coitus
C.Vasectomy
D.Using a condom after intercourse is over
Download the worksheet for How do Organisms Reproduce? - Family planning to practice offline. It includes additional chapter-level practice questions.
Child bearing and women’s health
SubtopicChild bearing and women’s health under How do Organisms Reproduce? for Grade 10 CBSE.
Preview questions (no answers)
- 1.
Which part of the female reproductive tract is blocked during the process of tubectomy?
A.Vagina
B.Uterus
C.Fallopian tube
D.Ovary
- 2.
When does the implantation of the embryo occur?
A.Immediately after ovulation
B.After fertilization in the uterus lining
C.Before fertilization
D.During menstruation
- 3.
The health of the mother is significantly affected by:
A.Frequency of childbearing
B.Her age at the time of pregnancy
C.Availability of nutritious food
D.All of the above
- 4.
Which of the following can cause irritation or side effects due to the presence of a foreign object in the uterus?
A.Condoms
B.Copper-T
C.Oral pills
D.Tubectomy
- 5.
Which of the following is a potential social consequence of female foeticide?
A.Increase in the female population
B.Gender imbalance in society
C.Better health for women
D.Lower maternal mortality rates
- 6.
How does the device help in preventing pregnancy?
A.By preventing ovulation
B.By preventing the release of sperms
C.By preventing the implantation of a fertilized egg in the uterus
D.By blocking the entry of sperms into the vagina
- 7.
Which of the following is true about the lining of the uterus during the menstrual cycle?
A.It becomes thin just before ovulation
B.It thickens and becomes rich in blood supply after ovulation
C.It is always the same thickness
D.It only thickens if fertilization has already happened
- 8.
If a woman is pregnant, which of the following hormone levels will remain consistently high to maintain the pregnancy?
A.Luteinizing Hormone (LH)
B.Follicle Stimulating Hormone (FSH)
C.Progesterone
D.Adrenaline
- 9.
How do 'emergency contraceptive pills' differ from regular oral contraceptive pills in their use?
A.They are taken every day for 28 days.
B.They are taken within a short window (usually 72 hours) after unprotected intercourse to prevent ovulation or fertilization.
C.They are used to terminate a 5-month-old pregnancy.
D.They are taken by the male partner to stop sperm production.
- 10.
What is the biological significance of the 'cervix' during pregnancy?
A.It produces the egg for the next pregnancy.
B.It remains tightly closed and develops a mucus plug to protect the fetus from infections.
C.It is the site where the placenta is always attached.
D.It acts as the primary source of nutrients for the fetus.
Download the worksheet for How do Organisms Reproduce? - Child bearing and women’s health to practice offline. It includes additional chapter-level practice questions.
Compare asexual and sexual reproduction in plants and animals
SubtopicCompare asexual and sexual reproduction in plants and animals under How do Organisms Reproduce? for Grade 10 CBSE.
Preview questions (no answers)
- 1.
Hydra can reproduce by budding. What type of reproduction is this?
A.Sexual reproduction
B.Asexual reproduction
C.Fertilization
D.Pollination
- 2.
The period of the menstrual cycle usually lasts for about:
A.2 to 8 days
B.15 to 20 days
C.24 hours
D.2 months
- 3.
Why is reproduction necessary for living organisms?
A.To keep the individual alive
B.To maintain the continuity of the species
C.To provide energy to the organism
D.To help in the digestion of food
- 4.
The prostate gland and seminal vesicles add their secretions to the sperms to:
A.Make them move easier and provide nutrition
B.Prevent them from reaching the egg
C.Change their genetic material
D.Decrease their number
- 5.
Identify the part of the embryo that acts as a storage of food in a dicot seed.
A.Radicle
B.Plumule
C.Cotyledon
D.Micropyle
- 6.
Surgical methods of contraception are considered permanent. What is the surgical procedure called when it is performed on a female?
A.Vasectomy
B.Tubectomy
C.Hysterectomy
D.Ligation
- 7.
What is the role of the 'stigma' in a flower?
A.It produces the ovules.
B.It serves as a landing platform for pollen grains.
C.It contains the male gametes.
D.It develops into the seed coat.
- 8.
Why is 'vegetative propagation' used for growing plants like Jasmine and Rose that have been cultivated for a long time?
A.Because they have lost the capacity to produce viable seeds.
B.Because it is the only way to produce genetic variation.
C.Because it is slower than growing them from seeds.
D.Because it ensures the plants are resistant to all types of soil fungi.
- 9.
During DNA replication, errors can occur. If these errors are too drastic, what is the most likely outcome for the new daughter cell?
A.It will become a 'super-cell' with enhanced capabilities.
B.The DNA copy will not work with the existing cellular apparatus, and the cell will die.
C.The cell will revert to a unicellular form.
D.The cell will immediately undergo meiosis.
- 10.
In a flowering plant, if the 'Anther' is removed before it matures (emasculation), the plant can still produce seeds if:
A.It undergoes self-pollination.
B.Cross-pollination occurs.
C.It is a unisexual male flower.
D.The ovary is also removed.
Download the worksheet for How do Organisms Reproduce? - Compare asexual and sexual reproduction in plants and animals to practice offline. It includes additional chapter-level practice questions.
Discuss reproductive health, family planning, safe sex, and HIV/AIDS awareness
SubtopicDiscuss reproductive health, family planning, safe sex, and HIV/AIDS awareness under How do Organisms Reproduce? for Grade 10 CBSE.
Preview questions (no answers)
- 1.
If a person is diagnosed with Gonorrhea, can they be treated?
A.No, it is incurable
B.Yes, with a course of appropriate antibiotics
C.Yes, but only by surgery
D.No, because it is caused by a virus
- 2.
Why does using a condom provide more health protection than a surgical method like a tubectomy?
A.It is more permanent
B.It protects against both pregnancy and STDs
C.It is 100% effective against all viruses
D.It makes the person immune to infections
- 3.
Which of the following describes the pathogen for Syphilis?
A.Viral
B.Bacterial
C.Fungal
D.Parasitic worm
- 4.
What is the primary message of most AIDS awareness campaigns?
A.AIDS is spread by air, so wear masks
B.Prevention is the only way to stay safe from HIV/AIDS
C.HIV can be cured by a healthy diet
D.Avoid all contact with people who have HIV
- 5.
A person believes that washing the genitals with soap and water after sex prevents HIV. Is this scientifically sound?
A.Yes, soap kills all viruses instantly on contact
B.No, because the virus may have already entered the bloodstream or internal tissues
C.Yes, because HIV only stays on the surface of the skin
D.No, because soap actually helps the virus grow faster
- 6.
What is the relationship between 'Safe Sex' and the use of 'Diaphragms' or 'Cervical caps'?
A.They provide total protection against HIV
B.They provide some protection against pregnancy but are less effective than condoms against STDs
C.They are used to treat bacterial infections
D.They are only used by males
- 7.
Which of the following is NOT a way HIV can be transmitted from a mother to her child?
A.During pregnancy through the placenta
B.During the process of childbirth
C.Through breastfeeding
D.Through the mother's DNA in the egg cell during fertilization
- 8.
Which of the following statements best summarizes the relationship between contraception and STD prevention?
A.All contraceptives prevent STDs equally.
B.Only barrier methods like condoms provide significant protection against most STDs including HIV/AIDS.
C.Surgical methods are the best way to prevent HIV transmission.
D.Hormonal methods are more effective than barrier methods for preventing Syphilis.
- 9.
Why is the 'asymptomatic' nature of many STDs particularly dangerous for the reproductive health of a population?
A.It means the disease has already been cured by the body.
B.Infected individuals may unknowingly spread the pathogen to multiple partners.
C.It shows that the pathogen is no longer reproducing.
D.It makes the person immune to any future infections.
- 10.
In terms of 'Safe Sex' education, what is the 'ABC' strategy often referred to in public health?
A.Antibiotics, Bacteria, Chemicals.
B.Abstinence, Be Faithful, Condoms.
C.Aids, Blood, Cells.
D.Always Be Careful.
Download the worksheet for How do Organisms Reproduce? - Discuss reproductive health, family planning, safe sex, and HIV/AIDS awareness to practice offline. It includes additional chapter-level practice questions.
How do Organisms Reproduce?
SubtopicHow do Organisms Reproduce? under How do Organisms Reproduce? for Grade 10 CBSE.
Preview questions (no answers)
- 1.
The first menstrual flow at puberty is known as:
A.Menopause
B.Menarche
C.Ovulation
D.Gestation
- 2.
Which of the following is NOT a method of asexual reproduction?
A.Spore formation
B.Budding
C.Fertilization
D.Fragmentation
- 3.
The part of the flower that often attracts insects for pollination is the:
A.Sepal
B.Petal
C.Carpel
D.Stamen
- 4.
In humans, the sperm contains which chromosome to result in a male child?
A.X chromosome
B.Y chromosome
C.Z chromosome
D.O chromosome
- 5.
After fertilization in the human female reproductive system, the zygote undergoes a series of changes as it moves through the oviduct. Which label in the flowchart represents the stage of 'Implantation'?
A.Stage Q
B.Stage R
C.Stage S
D.Zygote
- 6.
The placenta is a specialized tissue that facilitates the exchange of materials between the mother and the developing embryo. Based on the flowchart, identify which substances are correctly associated with the directions of 'Path A' and 'Path B'.
A.Path A: Carbon dioxide; Path B: Oxygen
B.Path A: Urea; Path B: Glucose
C.Path A: Oxygen; Path B: Carbon dioxide
D.Path A: Waste products; Path B: Nutrients
- 7.
The process by which a seed develops into a seedling under appropriate conditions like moisture and temperature is called:
A.Pollination
B.Fertilization
C.Germination
D.Propagation
- 8.
The flowchart below illustrates the process of vegetative propagation via tissue culture. If 'Factor X' is not introduced during the second stage of the medium transfer, the callus remains an unorganized, undifferentiated mass and fails to develop into plantlets. Based on the biological principles of reproduction and growth in plants, what is the most likely identity and function of 'Factor X'?
A.A concentrated nutrient solution containing high levels of glucose to provide respiratory energy for rapid growth.
B.A specific balance of plant hormones that triggers the process of cell differentiation and organ formation.
C.A chemical catalyst that increases the rate of DNA copying errors to create variations in the offspring.
D.A specialized sterile liquid substrate that provides mechanical support for the developing root systems.
- 9.
Why is the process of 'Pollination' a prerequisite for fertilization in flowering plants?
A.It causes the ovary to turn into a fruit directly.
B.It provides the necessary water for the sperm to swim to the egg.
C.It brings the male gamete-carrying pollen grain to the stigma of the female reproductive organ.
D.It triggers the meiotic division of the egg cell.
- 10.
In the context of DNA copying, 'Variation' is often called the basis of evolution. In which scenario is variation least likely to occur?
A.Sexual reproduction in a changing environment.
B.Asexual reproduction like binary fission in a stable environment.
C.Cross-pollination between two different varieties of plants.
D.Fertilization involving gametes from two different parents.
Download the worksheet for How do Organisms Reproduce? - How do Organisms Reproduce? to practice offline. It includes additional chapter-level practice questions.
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SubtopicDO ORG7.1 DO ORG7.1 DO ORG7.1 DO ORG7.1 DO ORG ANISMS CREAANISMS CREAANISMS CREAANISMS CREAANISMS CREA TE EXATE EXATE EXATE EXATE EXA CT COPIES OFCT COPIES OFCT COPIES OFCT COPIES OFCT COPIES OF under How do Organisms Reproduce? for Grade 10 CBSE.
Preview questions (no answers)
- 1.
Variation in a population helps it to _______.
A.Stay small
B.Survive environmental changes
C.Die quickly
D.Stop growing
- 2.
Is reproduction necessary for the survival of an individual organism?
A.Yes, always
B.No, it is for the survival of the species
C.Only for plants
D.Only for bacteria
- 3.
Organisms look similar because their _______ are similar.
A.Enzymes
B.Blueprints (DNA)
C.Diets
D.Habitats
- 4.
The DNA copying mechanism creates variations that are?
A.Always harmful
B.Always beneficial
C.The basis for evolution
D.Not real
- 5.
Based on the provided flowchart of the reproduction process, why does a 'drastic variation' in DNA copying typically lead to the death of the resulting cell?
A.Because the cell fails to replicate its cellular apparatus completely.
B.Because the DNA copying process consumes all available metabolic energy.
C.Because the altered DNA cannot function effectively with the inherited cellular machinery.
D.Because variations only allow for the maintenance of body design in a stable niche.
- 6.
The fact that 'offspring look like their parents' is primarily due to:
A.The accuracy of DNA copying
B.The inaccuracy of DNA copying
C.The environment of the offspring
D.The food provided by the parents
- 7.
If an organism reproduces through DNA copying and cell division, what is the 'unit' of inheritance being passed?
A.The whole cell
B.The DNA molecule
C.The cytoplasm
D.The cell membrane
- 8.
Consider the biochemical 'errors' during DNA copying. Which of the following is true about their frequency?
A.They are frequent enough to cause variation but rare enough to maintain species stability.
B.They are so frequent that no two organisms are ever in the same species.
C.They are so rare that they have no impact on evolution.
D.They only occur when the organism is under extreme stress.
- 9.
What happens to the 'original' cell when it creates two 'copies' through division?
A.It ceases to exist as a single entity and becomes the two new cells.
B.It remains as a parent and the two copies are expelled.
C.It shrinks in size and waits for the next cycle.
D.It provides only the DNA and then dissolves immediately.
- 10.
Why would a 'drastic change in the niche' be less threatening to a diverse population than a uniform one?
A.Diverse populations have more food storage.
B.Diversity increases the probability that some individuals will possess traits suitable for the new niche.
C.Uniform populations are more likely to migrate.
D.Drastic changes only affect identical organisms.
Download the worksheet for How do Organisms Reproduce? - DO ORG7.1 DO ORG7.1 DO ORG7.1 DO ORG7.1 DO ORG ANISMS CREAANISMS CREAANISMS CREAANISMS CREAANISMS CREA TE EXATE EXATE EXATE EXATE EXA CT COPIES OFCT COPIES OFCT COPIES OFCT COPIES OFCT COPIES OF to practice offline. It includes additional chapter-level practice questions.
MODES OF REPRODUCTION USED BY SINGLE7.2 MODES OF REPRODUCTION USED BY SINGLE7.2 MODES OF REPRODUCTION USED BY SINGLE7.2 MODES OF REPRODUCTION USED BY SINGLE7.2 MODES OF REPRODUCTION USED BY SINGLE
SubtopicMODES OF REPRODUCTION USED BY SINGLE7.2 MODES OF REPRODUCTION USED BY SINGLE7.2 MODES OF REPRODUCTION USED BY SINGLE7.2 MODES OF REPRODUCTION USED BY SINGLE7.2 MODES OF REPRODUCTION USED BY SINGLE under How do Organisms Reproduce? for Grade 10 CBSE.
Preview questions (no answers)
- 1.
Binary fission is common in which kingdom of organisms?
A.Animalia
B.Plantae
C.Monera and Protista
D.Fungi
- 2.
Banana plants have lost the capacity to produce:
A.Flowers
B.Leaves
C.Seeds
D.Roots
- 3.
A callus is formed during which process?
A.Fragmentation
B.Regeneration
C.Tissue culture
D.Spore formation
- 4.
Which of the following is an example of regeneration?
A.Amoeba dividing into two
B.Yeast forming a bud
C.Planaria cut into pieces growing into new individuals
D.Rhizopus forming spores
- 5.
If the DNA copying mechanism is not accurate during asexual reproduction, it leads to:
A.Identical clones
B.Variations
C.Extinction of the species immediately
D.Formation of gametes
- 6.
Which of the following is common to , , and ?
A.They are all unicellular
B.They all reproduce sexually
C.They all reproduce asexually
D.They all show fragmentation
- 7.
The process of 'proliferation' in regeneration refers to:
A.The death of cells
B.The rapid division of cells to form a mass
C.The fusion of cells
D.The movement of cells from one organism to another
- 8.
While both Yeast and Hydra reproduce through 'budding', the biological scale and cellular mechanism of the process differ significantly due to their level of organization. Based on the provided flowchart, which statement correctly identifies this fundamental difference?
A.Yeast budding involves the production of a dormant spore for survival during unfavorable conditions, whereas Hydra budding produces a motile larva for species dispersal.
B.The bud in Yeast is formed through the process of meiosis to facilitate genetic variation, whereas in Hydra, the bud is formed through simple fragmentation.
C.In Yeast, budding is a cellular-level process involving the unequal division of a single cell, whereas in Hydra, it is a tissue-level process involving the proliferation and differentiation of specialized regenerative cells.
D.Yeast budding occurs only in the absence of a nucleus, while Hydra budding requires the fusion of nuclei from two different specialized cells to trigger outgrowth.
- 9.
Which factor is most critical for the successful growth of spores into a new mycelium in Rhizopus?
A.Presence of bright sunlight.
B.Contact with a moist surface and availability of nutrients.
C.Availability of a partner for sexual fusion.
D.High concentration of atmospheric nitrogen.
- 10.
The 'specialized cells' in regenerating organisms like Planaria are functionally similar to which cells in humans?
A.Red blood cells
B.Stem cells
C.Nerve cells
D.Muscle cells
Download the worksheet for How do Organisms Reproduce? - MODES OF REPRODUCTION USED BY SINGLE7.2 MODES OF REPRODUCTION USED BY SINGLE7.2 MODES OF REPRODUCTION USED BY SINGLE7.2 MODES OF REPRODUCTION USED BY SINGLE7.2 MODES OF REPRODUCTION USED BY SINGLE to practice offline. It includes additional chapter-level practice questions.
SEXUAL REPRODUCTION7.3 SEXUAL REPRODUCTION7.3 SEXUAL REPRODUCTION7.3 SEXUAL REPRODUCTION7.3 SEXUAL REPRODUCTION
SubtopicSEXUAL REPRODUCTION7.3 SEXUAL REPRODUCTION7.3 SEXUAL REPRODUCTION7.3 SEXUAL REPRODUCTION7.3 SEXUAL REPRODUCTION under How do Organisms Reproduce? for Grade 10 CBSE.
Preview questions (no answers)
- 1.
The process of cross-pollination is often facilitated by:
A.Wind and water
B.Insects
C.Animals
D.All of the above
- 2.
How many chromosomes are typically found in a human sperm cell?
A.B.C.D. - 3.
The process where a seed develops into a seedling under appropriate conditions is:
A.Pollination
B.Fertilization
C.Germination
D.Fragmentation
- 4.
In human males, the is carried by the:
A.Blood
B.Sperm
C.Urine
D.Hormones
- 5.
In many multicellular organisms, the two types of germ cells (gametes) are specialized to perform different roles as shown in the provided flowchart. Which of the following statements correctly identifies these cells based on their structural characteristics?
A.Cell A is the female germ cell and Cell B is the male germ cell
B.Cell A is the male germ cell and Cell B is the female germ cell
C.Both Cell A and Cell B are specialized to store food for the embryo
D.Cell A is a non-motile cell produced within the ovaries
- 6.
Which of the following is a result of the fusion of a male gamete with a female gamete?
A.A haploid zygote
B.A diploid zygote
C.A haploid embryo
D.A diploid spore
- 7.
What is the typical duration of the menstrual cycle in human females?
A.2 to 8 days
B.28 to 30 days
C.14 days
D.10 to 15 days
- 8.
If the egg is fertilized, it starts dividing and forms a ball of cells. What is this stage called just before it implants in the uterus?
A.Blastocyst
B.Zygote
C.Gastrula
D.Fetus
- 9.
The offspring produced by sexual reproduction exhibit more variations than those produced by asexual reproduction. Why?
A.Genetic material comes from two parents and crossing over occurs during meiosis
B.Sexual reproduction is a much faster process
C.Asexual reproduction involves more mutations
D.Sexual reproduction involves only one parent but two types of cells
- 10.
Which of the following methods of contraception is considered a surgical method for females?
A.Tubectomy
B.Vasectomy
C.Copper-T
D.Oral pills
Download the worksheet for How do Organisms Reproduce? - SEXUAL REPRODUCTION7.3 SEXUAL REPRODUCTION7.3 SEXUAL REPRODUCTION7.3 SEXUAL REPRODUCTION7.3 SEXUAL REPRODUCTION to practice offline. It includes additional chapter-level practice questions.