Life Processes and Living Things
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Life cycles of flowering plants
SubtopicLife cycles of flowering plants under Life Processes and Living Things for Grade 5 IGCSE.
Preview questions (no answers)
- 1.
Which process is shown in the following sequence?
A.Photosynthesis
B.Germination
C.Fertilization
D.Pollination
- 2.
Why is warmth important for germination?
A.It helps the plant make nectar
B.It speeds up the chemical reactions inside the seed
C.It attracts insects to the seed
D.It makes the seed heavier
- 3.
What is the name of the process that comes directly after fertilization?
A.Seed formation
B.Germination
C.Pollination
D.Budding
- 4.
Which part of the plant connects the roots to the leaves and flowers?
A.The stem
B.The petal
C.The sepal
D.The anther
- 5.
Which part of the plant holds the ovules and eventually becomes the fruit?
A.The Anther
B.The Ovary
C.The Filament
D.The Stigma
- 6.
What is the name for the process where a seed starts to grow?
A.Fertilization
B.Germination
C.Pollination
D.Dispersal
- 7.
Which of these is the correct order of stages in the life cycle of a flowering plant?
A.Germination -> Growth -> Pollination -> Fertilization -> Seed Dispersal
B.Pollination -> Germination -> Seed Dispersal -> Growth -> Fertilization
C.Seed Dispersal -> Fertilization -> Pollination -> Growth -> Germination
D.Growth -> Seed Dispersal -> Germination -> Pollination -> Fertilization
- 8.
Which plant part is responsible for producing the male sex cells (pollen)?
A.The ovary
B.The style
C.The anther
D.The stigma
- 9.
What is the main difference between pollination and fertilization?
A.Pollination is the growth of the plant; fertilization is the dispersal of seeds
B.Pollination is the transfer of pollen; fertilization is the joining of male and female cells
C.Pollination happens in the soil; fertilization happens in the air
D.Pollination requires water; fertilization requires wind
- 10.
Why do some seeds remain 'dormant' for many years?
A.They are waiting for the right conditions like water and warmth to germinate
B.They have run out of food and are resting to gain more
C.They are already dead and cannot grow
D.They are waiting for a pollinator to arrive
Download the worksheet for Life Processes and Living Things - Life cycles of flowering plants to practice offline. It includes additional chapter-level practice questions.
Pollination and fertilization
SubtopicPollination and fertilization under Life Processes and Living Things for Grade 5 IGCSE.
Preview questions (no answers)
- 1.
What is the primary function of the fruit in a plant's life cycle?
A.To help the plant breathe
B.To protect the seeds and help them spread
C.To make food for the plant
D.To attract pollinators to the flower
- 2.
Based on the transformation diagram below, what happens to the ovary after fertilization?
A.It becomes the seed
B.It becomes the fruit
C.It becomes the root
D.It becomes the petal
- 3.
Which part of the flower is the filament attached to at the top?
A.The Ovary
B.The Anther
C.The Stigma
D.The Style
- 4.
What do we call the process where a seed begins to grow into a new plant?
A.Pollination
B.Fertilization
C.Germination
D.Photosynthesis
- 5.
Which of the following is the correct order of events in the life cycle of a flowering plant?
A.Fertilization -> Pollination -> Seed Dispersal -> Germination
B.Pollination -> Fertilization -> Seed Dispersal -> Germination
C.Germination -> Seed Dispersal -> Fertilization -> Pollination
D.Seed Dispersal -> Pollination -> Germination -> Fertilization
- 6.
What does the term 'gamete' refer to in biology?
A.The stem of a plant
B.A specialized reproductive cell (like an egg or sperm/pollen cell)
C.The fruit produced after fertilization
D.A type of pollinating insect
- 7.
What is the function of the pollen tube?
A.To protect the flower from insects
B.To transport the male gamete to the ovule
C.To hold the pollen grains on the anther
D.To absorb nutrients from the soil
- 8.
If you see a flower with a very long, narrow tube and the nectar is at the very bottom, which pollinator is least likely to be successful?
A.A hummingbird with a long beak.
B.A butterfly with a long proboscis.
C.A honeybee with a short tongue.
D.A hawk moth with a long tongue.
- 9.
Which structure in the flower is responsible for protecting the developing floral bud before it opens?
A.The petals
B.The sepals
C.The stigma
D.The filaments
- 10.
What happens to the genetic material of the male and female plants during fertilization?
A.The male genetic material replaces the female genetic material.
B.The genetic materials combine to form a unique blueprint for the new plant.
C.The genetic material is discarded, and the seed starts from scratch.
D.The genetic material only comes from the mother plant.
Download the worksheet for Life Processes and Living Things - Pollination and fertilization to practice offline. It includes additional chapter-level practice questions.
Seed dispersal and germination
SubtopicSeed dispersal and germination under Life Processes and Living Things for Grade 5 IGCSE.
Preview questions (no answers)
- 1.
When does the germination process officially end?
A.When the seed is planted
B.When the plant starts to make its own food using leaves
C.When the radicle first appears
D.When the seed is dispersed
- 2.
Which part of the seed protects the delicate embryo from being crushed?
A.The plumule
B.The radicle
C.The seed coat
D.The cotyledon
- 3.
What is the main advantage of wind dispersal?
A.It ensures seeds land in water
B.It can carry light seeds over long distances
C.It helps seeds stay near the parent plant
D.It makes the seeds taste better
- 4.
Seeds like the 'himalayan balsam' shoot their seeds out when touched. This is:
A.Wind dispersal
B.Animal dispersal
C.Explosive dispersal
D.Water dispersal
- 5.
Why does a germinating seed need to release energy from its food store?
A.To stay warm during the night
B.To power the growth of new cells in the radicle and plumule
C.To produce light for photosynthesis
D.To attract beneficial bacteria to the roots
- 6.
Which of these is NOT a method used by plants to disperse seeds via the wind?
A.Feathery hairs (e.g., Clematis)
B.Winged fruits (e.g., Ash)
C.Small, dust-like seeds (e.g., Orchids)
D.Heavy, round nuts (e.g., Horse Chestnut)
- 7.
What do we call the process where a seed absorbs water and its internal pressure increases until the testa bursts?
A.Imbibition
B.Evaporation
C.Fertilization
D.Transpiration
- 8.
Which of these environmental factors is most likely to trigger the end of 'dormancy' in a seed buried deep in the forest floor?
A.A change in the magnetic field of the Earth.
B.A sudden increase in light and temperature caused by a fallen tree clearing the canopy.
C.The sound of animals moving nearby.
D.The presence of more carbon dioxide in the soil from rotting leaves.
- 9.
In the process of 'epigeal' germination, the cotyledons are pushed above the soil surface. What is their new function once they are above ground?
A.They act as the first leaves and begin to photosynthesize.
B.They fall off immediately to provide fertilizer.
C.They protect the plumule from being eaten by birds.
D.They absorb water directly from the rain.
- 10.
How does the 'wing' of a maple seed affect the 'terminal velocity' (speed of falling) of the seed?
A.It increases the speed so the seed hits the ground harder and buries itself.
B.It decreases the speed by creating air resistance, allowing the wind to carry it further.
C.It has no effect on the speed of falling.
D.It makes the seed fall in a straight line rather than swaying.
Download the worksheet for Life Processes and Living Things - Seed dispersal and germination to practice offline. It includes additional chapter-level practice questions.
The human circulatory system
SubtopicThe human circulatory system under Life Processes and Living Things for Grade 5 IGCSE.
Preview questions (no answers)
- 1.
If you were to trace a drop of blood, which path is correct?
A.Heart to Lungs to Body
B.Lungs to Stomach to Brain
C.Heart to Brain to Lungs
D.Body to Lungs to Body
- 2.
What do we call the pressure of blood pushing against the walls of the arteries?
A.Air pressure
B.Blood pressure
C.Water pressure
D.Muscle pressure
- 3.
Which of these describes the walls of an artery compared to a vein?
A.Arteries are thinner
B.Arteries are thicker and more stretchy
C.Arteries have no walls
D.They are exactly the same
- 4.
What is the primary job of the circulatory system?
A.To think and make decisions
B.To move materials around the body
C.To help the body move its bones
D.To protect the body from sunlight
- 5.
Which other organ system works most closely with the circulatory system to ensure all body cells receive oxygen?
A.The skeletal system
B.The respiratory system
C.The digestive system
D.The nervous system
- 6.
What can happen to the blood vessels of a person who eats a diet very high in unhealthy fats over many years?
A.The vessels can become wider and clearer
B.The vessels can become blocked or narrowed by fatty deposits
C.The vessels will disappear and be replaced by muscle
D.The vessels will start to carry air instead of blood
- 7.
Plasma is mostly made of which substance?
A.Iron
B.Oxygen
C.Water
D.Sugar
- 8.
If a red blood cell just left the left ventricle, where is its next likely destination?
A.The lungs
B.The right atrium
C.The aorta
D.The pulmonary artery
- 9.
Which of these is a function of the white blood cells called 'lymphocytes'?
A.Carrying carbon dioxide to the lungs.
B.Producing antibodies to destroy pathogens.
C.Breaking down large food molecules.
D.Hardening the walls of the arteries.
- 10.
What happens to the rate of blood flow in the body when a person is at rest compared to when they are active?
A.It stays exactly the same.
B.It slows down because the muscles need less oxygen.
C.It stops for short periods to save energy.
D.It speeds up to help the body fall asleep.
Download the worksheet for Life Processes and Living Things - The human circulatory system to practice offline. It includes additional chapter-level practice questions.
The effect of exercise on the heart
SubtopicThe effect of exercise on the heart under Life Processes and Living Things for Grade 5 IGCSE.
Preview questions (no answers)
- 1.
If you exercise every day for a month, what will likely happen to your heart?
A.It will get tired and stop
B.It will become stronger
C.It will turn into a bone
D.It will beat much faster when you are sleeping
- 2.
Which of these is a sign that your heart rate has increased?
A.Your pulse feels faster
B.Your skin feels very cold
C.You feel very sleepy
D.Your hair grows longer
- 3.
What is the main purpose of the circulatory system during exercise?
A.To transport materials to and from the muscles
B.To help the body grow taller
C.To protect the brain from injury
D.To help the body digest a meal
- 4.
Which finger should you NOT use to feel a pulse because it has its own strong pulse?
A.Index finger
B.Middle finger
C.Thumb
D.Ring finger
- 5.
The provided diagram illustrates how the body responds to exercise. If a person's heart rate failed to increase as shown in Step 3, which of the following would be the most likely result?
A.The muscles would receive more nutrients than they need to function.
B.The muscles would be unable to sustain the exercise due to a lack of oxygen.
C.The body would stop producing carbon dioxide waste entirely.
D.The blood would flow faster through the veins to compensate for the slow heart.
- 6.
Which statement about the heart is FALSE?
A.It is a pump
B.It is a muscle
C.It stops beating when you are asleep
D.It beats faster when you are active
- 7.
If a student's pulse is 10 beats in 10 seconds, what is their heart rate?
A.10 bpm
B.60 bpm
C.100 bpm
D.120 bpm
- 8.
If a person is dehydrated (has not drunk enough water), their heart rate during exercise is often higher than usual. What is the most likely reason?
A.The blood volume is lower, so the heart must beat faster to circulate the same amount of oxygen.
B.The heart is trying to pump water from the lungs to the muscles.
C.The muscles use more oxygen when they are dry.
D.The brain sends a 'panic' signal that only affects the heart rate.
- 9.
What would be the most scientific way to display the results of a 'Heart Rate vs. Exercise Intensity' experiment?
A.A pie chart showing the different types of exercises done.
B.A line graph with 'Exercise Intensity' on the x-axis and 'Heart Rate' on the y-axis.
C.A drawing of the heart with different colors for different speeds.
D.A list of the students' names in alphabetical order.
- 10.
During exercise, why does the skin often turn red or 'flushed'?
A.The blood is moving so fast that it stains the skin.
B.The heart pumps more blood to the surface of the skin to help release excess heat produced by the muscles.
C.The muscles are pushing the blood out of the body through the pores.
D.Oxygen is being absorbed through the skin, turning it red.
Download the worksheet for Life Processes and Living Things - The effect of exercise on the heart to practice offline. It includes additional chapter-level practice questions.
Human digestive system and nutrition
SubtopicHuman digestive system and nutrition under Life Processes and Living Things for Grade 5 IGCSE.
Preview questions (no answers)
- 1.
How many times a day is it generally recommended to brush your teeth to maintain good hygiene?
A.Once a week
B.Every hour
C.Twice a day
D.Once a month
- 2.
What is the soft, living part inside a tooth that contains nerves and blood vessels?
A.Enamel
B.Dentin
C.Pulp
D.Cementum
- 3.
Which of the following contains the most fiber?
A.A glass of milk
B.A whole-grain cereal
C.A piece of steak
D.A spoonful of honey
- 4.
What role does the esophagus play in digestion?
A.It absorbs water
B.It grinds food into a paste
C.It moves food from the mouth to the stomach
D.It produces saliva
- 5.
A student is performing a food test in a laboratory. Based on the process and result shown in the diagram, which specific nutrient is the student identifying in the bread sample?
A.Sugar
B.Fats
C.Starch
D.Protein
- 6.
Human health depends on consuming the right minerals. Based on the diagram, which mineral must be included in a child's diet to support the healthy growth of the body parts labeled 'Part Z'?
A.Iron
B.Calcium
C.Vitamin C
D.Potassium
- 7.
Which food group would you find at the very top of a healthy food pyramid (to be eaten in small amounts)?
A.Vegetables
B.Fruits
C.Foods high in sugar and fat
D.Bread and cereals
- 8.
What would happen if the enzymes in the small intestine were exposed to very high levels of stomach acid without being neutralized?
A.They would work much faster
B.They would stop working (denature) because the environment is too acidic
C.They would turn into fat
D.They would begin digesting the large intestine
- 9.
Which organ receives the 'bolus' immediately after it is swallowed?
A.The Trachea
B.The Esophagus
C.The Stomach
D.The Small Intestine
- 10.
Why does the body need to break down large food molecules during digestion?
A.Because large molecules are poisonous to the brain
B.To allow the molecules to pass through the walls of the digestive system into the blood
C.To make the food lose its flavor
D.To help the food move faster through the esophagus
Download the worksheet for Life Processes and Living Things - Human digestive system and nutrition to practice offline. It includes additional chapter-level practice questions.
Food Chains and Food Webs
SubtopicFood Chains and Food Webs under Life Processes and Living Things for Grade 5 IGCSE.
Preview questions (no answers)
- 1.
Which statement is true about energy in a food chain?
A.Energy increases as it moves up the chain
B.Energy is lost as it moves from one level to the next
C.Energy only comes from the soil
D.Energy stays the same at every level
- 2.
If you are eating a salad, you are acting as a:
A.Producer
B.Primary Consumer
C.Secondary Consumer
D.Decomposer
- 3.
What is the second link in a food chain called?
A.Producer
B.Primary Consumer
C.Secondary Consumer
D.Tertiary Consumer
- 4.
Which of these is NOT a biotic (living) part of a food web?
A.Plants
B.Animals
C.Fungi
D.Sunlight
- 5.
Which organism completes this food chain? Grass ______ Fox
A.Lion
B.Rabbit
C.Hawk
D.Wolf
- 6.
Which of the following best describes 'interdependence' in a food web?
A.Animals living alone without any help
B.All organisms relying on each other for survival
C.Only plants needing the Sun
D.Predators not needing prey
- 7.
In a food web, arrows always point:
A.Toward the organism that is being eaten
B.Toward the organism that is doing the eating
C.Toward the Sun
D.Toward the producers
- 8.
In the diagram below, which organism is a primary consumer?
A.Organism 1
B.Organism 2
C.Organism 3
D.Organism 4
- 9.
Which process allows producers to enter energy into the food web?
A.Respiration
B.Digestion
C.Photosynthesis
D.Decomposition
- 10.
What is the ultimate source of energy for almost all food webs on Earth?
A.Plants
B.The Moon
C.The Sun
D.Decomposers
Download the worksheet for Life Processes and Living Things - Food Chains and Food Webs to practice offline. It includes additional chapter-level practice questions.