Biology
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Transport in Plants (Xylem, Phloem, Osmosis, Transpiration)
SubtopicTransport in Plants (Xylem, Phloem, Osmosis, Transpiration) under Biology for Grade 8 ICSE.
Preview questions (no answers)
- 1.
If the concentration of water molecules is the same inside and outside the cell, the solution is said to be:
A.Hypotonic
B.Hypertonic
C.Isotonic
D.Dilute
- 2.
Sieve plates are found at the end walls of which cells?
A.Xylem vessels
B.Tracheids
C.Sieve tubes
D.Root hairs
- 3.
Which process requires the expenditure of metabolic energy ()?
A.Diffusion
B.Osmosis
C.Active Transport
D.Transpiration
Download the worksheet for Biology - Transport in Plants (Xylem, Phloem, Osmosis, Transpiration) to practice offline. It includes additional chapter-level practice questions.
Reproduction in Plants (Sexual and Asexual, Pollination, Fertilization)
SubtopicReproduction in Plants (Sexual and Asexual, Pollination, Fertilization) under Biology for Grade 8 ICSE.
Preview questions (no answers)
- 1.
Which of these plants has seeds that are usually dispersed by wind, aiding in its reproduction cycle?
A.Coconut
B.Dandelion
C.Mango
D.Xanthium
- 2.
The protective outer layer of a seed is called the:
A.Embryo
B.Endosperm
C.Seed coat
D.Cotyledon
- 3.
A fruit is essentially a:
A.Fertilized ovule
B.Ripened ovary
C.Developed embryo
D.Modified leaf
Download the worksheet for Biology - Reproduction in Plants (Sexual and Asexual, Pollination, Fertilization) to practice offline. It includes additional chapter-level practice questions.
Reproduction in Animals (Sexual and Asexual, Metamorphosis)
SubtopicReproduction in Animals (Sexual and Asexual, Metamorphosis) under Biology for Grade 8 ICSE.
Preview questions (no answers)
- 1.
In external fertilization, the fusion of gametes takes place:
A.In the air
B.Outside the female body
C.Inside the male body
D.Inside the uterus
- 2.
Which of these is a male reproductive organ in humans?
A.Ovary
B.Uterus
C.Testis
D.Oviduct
- 3.
A hen's egg is actually:
A.A tissue
B.An organ
C.A single cell
D.An organ system
Download the worksheet for Biology - Reproduction in Animals (Sexual and Asexual, Metamorphosis) to practice offline. It includes additional chapter-level practice questions.
Ecosystems (Biotic and Abiotic components, Food chains, Food webs)
SubtopicEcosystems (Biotic and Abiotic components, Food chains, Food webs) under Biology for Grade 8 ICSE.
Preview questions (no answers)
- 1.
Which abiotic factor varies with the depth of the ocean?
A.The number of whales
B.The amount of light
C.The presence of fish
D.The species of coral
- 2.
Which of these is a characteristic of a food web?
A.It is a single straight line
B.It shows only one predator
C.It consists of many interconnected food chains
D.It does not include producers
- 3.
What is the function of the 'producers' in an ecosystem?
A.To consume other animals
B.To convert solar energy into chemical energy
C.To decompose dead plants
D.To provide shelter to herbivores
Download the worksheet for Biology - Ecosystems (Biotic and Abiotic components, Food chains, Food webs) to practice offline. It includes additional chapter-level practice questions.
Endocrine System and Adolescence (Hormones, Growth, Stress management)
SubtopicEndocrine System and Adolescence (Hormones, Growth, Stress management) under Biology for Grade 8 ICSE.
Preview questions (no answers)
- 1.
Which part of the cell carries the instructions for determining the sex of the baby?
A.Cytoplasm
B.Mitochondria
C.Chromosomes
D.Cell membrane
- 2.
Drugs are addictive. Once taken, there is an urge to take them again and again. What is the best way to stay away from drugs?
A.Try them once to see
B.Say 'No' firmly
C.Follow friends who use them
D.Use them only during stress
- 3.
Which hormone controls the metamorphosis (change from larva to adult) in frogs?
A.Insulin
B.Thyroxine
C.Adrenaline
D.Growth Hormone
Download the worksheet for Biology - Endocrine System and Adolescence (Hormones, Growth, Stress management) to practice offline. It includes additional chapter-level practice questions.
The Circulatory System (Heart, Blood vessels, Blood groups, Lymph)
SubtopicThe Circulatory System (Heart, Blood vessels, Blood groups, Lymph) under Biology for Grade 8 ICSE.
Preview questions (no answers)
- 1.
The circulation of blood between the heart and the various organs of the body (excluding the lungs) is called:
A.Pulmonary circulation
B.Systemic circulation
C.Renal circulation
D.Hepatic circulation
- 2.
Which protein present in plasma is primarily responsible for blood clotting?
A.Hemoglobin
B.Insulin
C.Fibrinogen
D.Pepsin
- 3.
What happens when a person with blood group A receives blood from a person with blood group B?
A.Nothing happens
B.The blood flows faster
C.The blood cells clump together (agglutination)
D.The blood turns blue
Download the worksheet for Biology - The Circulatory System (Heart, Blood vessels, Blood groups, Lymph) to practice offline. It includes additional chapter-level practice questions.
The Nervous System (Brain, Spinal cord, Reflex action)
SubtopicThe Nervous System (Brain, Spinal cord, Reflex action) under Biology for Grade 8 ICSE.
Preview questions (no answers)
- 1.
The part of the neuron that terminates in small bulb-like structures to pass signals is the:
A.Dendrite
B.Axon terminal
C.Cyton
D.Node
- 2.
Which layer of the meninges is thin and web-like?
A.Dura mater
B.Arachnoid
C.Pia mater
D.Gray mater
- 3.
Which of the following represents the correct sequence of messages in a reflex action?
A.Motor -> Sensory -> Brain
B.Receptor -> Sensory -> Spinal Cord -> Motor -> Effector
C.Effector -> Motor -> Spinal Cord -> Receptor
D.Brain -> Motor -> Sensory -> Effector
Download the worksheet for Biology - The Nervous System (Brain, Spinal cord, Reflex action) to practice offline. It includes additional chapter-level practice questions.
Diseases and First Aid (Communicable and Non-communicable diseases)
SubtopicDiseases and First Aid (Communicable and Non-communicable diseases) under Biology for Grade 8 ICSE.
Preview questions (no answers)
- 1.
A person having difficulty seeing in dim light is likely suffering from a deficiency of:
A.Vitamin D
B.Vitamin A
C.Vitamin B12
D.Vitamin C
- 2.
What is the pathogen that causes AIDS?
A.Bacteria
B.HIV (Virus)
C.Plasmodium
D.Fungi
- 3.
Which of the following is a symptom of Iron deficiency?
A.Pale skin and fatigue
B.Bowing of legs
C.Bleeding gums
D.Swelling of joints
Download the worksheet for Biology - Diseases and First Aid (Communicable and Non-communicable diseases) to practice offline. It includes additional chapter-level practice questions.
Food Production (Agriculture, Animal Husbandry, Organic Farming)
SubtopicFood Production (Agriculture, Animal Husbandry, Organic Farming) under Biology for Grade 8 ICSE.
Preview questions (no answers)
- 1.
In animal husbandry, the term 'apiary' refers to:
A.A place where fish are kept
B.A place where honey bee hives are kept
C.A place where silkworms are reared
D.A place where cows are milked
- 2.
Which of these is a widely used nitrogenous fertilizer?
A.Potash
B.Superphosphate
C.Urea
D.Compost
- 3.
High moisture content in stored grains leads to the growth of:
A.Crystals
B.Flowers
C.Fungi and bacteria
D.Vitamins
Download the worksheet for Biology - Food Production (Agriculture, Animal Husbandry, Organic Farming) to practice offline. It includes additional chapter-level practice questions.