Biology questions to help you revise.
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1 Is a kidney best described as A: a cell, B: tissue, C: organ or D: organism?   
2 What organ in our body contains valves   
3 Name THREE features that would be found in ALL living cells.   
4 What is the normal pulse rate of a boy while resting?   
5 Where can you easily measure the pulse?    
6 What is the normal body temperature of a human   
7 Name three structures that would be found only in plant cells   
8 To which group of animals does a FROG belong?   
9 How long does it take a human embryo to develop in the uterus?   
10 In which cell structure does photosynthesis take place?
11 How many kidneys are in a normal mammal?   
12 What function is carried out by our bladder   
13 What happens to your pulse during exercise?   
14 Enzymes help which process take place in our body?   
15 Name three structures that you may find in a plant cell but NOT in an animal cell   
16 What are the main features in a plant would you look for to show that it was pollinated by insects   
17 A section from an animals liver would be best described as A: a cell, B: tissue, C: an organ or D: an organism.   
18 The place where an animal makes its home is called the A: habitat, B: environment or C: community ?    
19 What is the function of the heart?    
20 What are your lungs for?   
21 Describe three ways that our body uses the energy released during respiration.   
22 What do we call the process of breaking down food?    
23 What do we mean by a nutrient?   
24 What are the requirements of a newly born baby?    
25 What is the approximate mass of a new born baby? A: about 100g, B:about 1kg, C: about 4kg, D: about 10kg   
26 What food can provide us with protein?   
27 Describe four ways a person can help minimise the risk of heart disease   
28 Describe two ways that the body of a mammal conserves (saves) heat energy   
29 What substances that may harm the embryo pass through the placenta from the mother to the embryo.
30 Which part of a plant cell is used to make paper?
31 Describe one use for our brain  
32 How can your body lose heat energy if it is too hot?
33 How does oxygen enter the body in a mammal?
34 How does oxygen get delivered to the tissues in a human?
35 Name the waste gas produced during respiration
36 How does the developing baby get its food?
37 How often does the girls body make an egg?
38 How is the sperm different to an egg?
39 What is the name of the process by which energy for all living processes is made available
40 What is the kidney for?
41 Which part of a cell provides it with energy
42 Which part of a cell contains chromosomes (DNA)
43 What has to happen to an egg before it can start to develop into a baby?
44 What is a zygote?
45 What is meant by a balanced diet
46 When would you use a quadrat? Distilling wine, Studying a habitat, Filtering sea water
47 What is meant by the gestation period?
48 What is a saprophye
49 Imagine you are in a wood. At what time of day (or night ) would the carbon dioxide concentration be the highest?  
50 Give TWO uses for our ears  
51 Why do we need to eat fresh vegetables and fruit?  
52 Why do we carry out respiration?
53 What is the word equation for respiration?  
54 Which part of our body consists mostly of nerve cells?  
55 Name 5 important important nutrients in a balanced diet?  
56 Why does a plant carry out photosynthesis?
57 What is the word equation for photosynthesis?
58 Where is the male gamete found in humans?  
59 Where is the egg formed in a human?  
60 What is a parasite?
61 How can you test for the presence of starch in food  
62 Where in the mother’s body does the embryo develop?   
63 Name the products of photosynthesis  
64 Which part of a plant manufactures food by photosynthesis? Root, Flower, Stem or Leaves
65 Which part of a plant is where the seeds are made? Root, Flower, Stem or Leaves   
66 Which part of the body removes soluble waste and excess water from the blood.  
67 Which part of a plant absorbs water from the ground? Root, Flower, Stem or Leaves   
68 When does photosynthesis take place in a plant: A: Day-time only. B: Night-time only, C: Day and night D: Never   
69 How is the root of a plant adapted to help it absorb water?
70 When you eat a nice juicy strawberry… which part of the plant are you eating?  
71 Which part of our body carries oxygenated blood away from the heart?  
72 How are leaves specially adapted for photosynthesis?  
73 Pollen reaching the stigma of a plant is known as what? Fertilization, pollination, transpiration or germination  
74 What are stomata?  
75 A seed starting to grow is known as what? Fertilization, pollination, transpiration or germination  
76 Where is the male gamete found in plants?  
77 Describe the importance of microbes (tiny animals) that live in the soil  
78 How does the wide dispersal of the seeds help the survival of a plant species  
79 Does grass reproduce sexually or asexually?  
80 Name any carnivorous invertebrate   
81 Name any cold-blooded vertebrate  
82 Name one substance needed by plants for photosynthesis to take place   
83 Muscles in our body are usually antagonistic. This means the muscles are 1:on their own, 2:found in pairs or 3:in groups of three
84 Is a berry normally found on a female plant or a male plant?  
85 Name three methods by which seed dispersal usually takes place.   
86 Name an important element needed by plants.   
87 From where do the producers in a food chain obtain their energy?  
88 Name two methods by which pollination can take place  
89 From where would the predator in an ecosystem obtain its energy?  
90 The first organism in a food chain is always a: A: producer, B: carnivore, C: predator or D: consumer  
91 What is the initial source of energy in any ecosystem?  
92 What is meant by a primary producer?  
93 Taking cuttings, budding, forming tubers and runners are all examples of what process?   
94 What biological process releases oxygen into the atmosphere?   
95 What could a plant cell NOT do if it had no CHLOROPLASTS?  
96 What does fertilize mean?  
97 What green chemical, found in plant cells, is necessary for photosynthesis to take place?   
98 What happens to the glucose (a kind of sugar) produced by plants during photosynthesis?  
99 What type of food do herbivores usually eat?  
100 Which structure in a cell contains the genetic material?   
101 What is meant by pollination?   
102 What is the function of the roots of a plant?  
103 What is the main function for the leaves of a plant.   
104 What is the name of the process by which plants manufacture sugars?   
105 When does respiration take place in a plant: A: Day-time only. B: Night-time only, C: Day and night D: Never   
106 What is a zygote?
107 What would be the effect on an ecosystem if the saprophytes all died?   
108 Imagine you are in a wood. At what time of day (or night ) would the oxygen concentration be the highest?   
109 Would you expect to find more carnivores or herbivores in an ecosystem?   
110 Name four physical factors that can effect the environment of an organism   
111 What would be the effects on an ecosystem if all the herbivores suddenly died or left?  
112 Where is pollen made in a plant?
113 What is the importance of decomposers in an ecosystem  


An organ
Cytoplasm, cell membrane and the nucleus
At your wrist, the side of your neck or over your chest
Large vacuole, chloroplasts and a cell wall
9 months
To store urine
It will increase
Chloroplasts, Cell wall and a large vacuole
Coloured petals
To pump blood
To transfer oxygen into the blood (and remove carbon dioxide)
Growth, Warmth,  movement, repair of cells
A substance from food that our body needs
Protection, food, warmth, love
Answer C (about 4kg)
Choose from: Cheese, egg, meat, soya (there are many other foods you could choose from.
Eat less fat, Eat  less salt, Take exercise, Drink less alcohol, don’t smoke
A mammal has fur (or hair) and often a layer of fat.
Alcohol, medicines and poisons from tobacco smoke
The cell wall which is made of cellulose
Coordinates actions, controls what the body does, memory
Through the lungs
Oxygen is in the blood which is being pumped around by the heart
Carbon dioxide
Through the placenta
Once a month (every 28 days)
A sperm is smaller and can move
remove waste chemicals from the blood
The nucleus
It has to be fertilized
A fertilized egg
A diet containing the correct nutrients in the right proportions
Studying a habitat. A quadrat is used to help measure a population.
The time a baby mammal is inside its mother before it is born
A decay organism (like a fungus or bacteria)
Towards the end of the night (when photosynthesis is not taking place)
Hearing and balance
To provide us with vitamins and minerals
To provide the cells in our body with energy
Oxygen + glucose → Carbon dioxide + water + energy
The brain
Carbohydrates, protein, vitamins, minerals, fibre (and water)
To make glucose and starch
carbon dioxide + water + energy from the sun → Glucose + oxygen
The testes
The ovaries
An organism that lives in (or on) another living organism (eg a flea on a dog
Add iodine solution which will turn a blue-black colour
The uterus
Oxygen and glucose
The kidney
Day time only
It has elongated cells forming root hairs which give it a larger surface area
The fruit (or ovary)
They have more chloroplasts along the top surface and usually a large surface area.
Tiny holes on the underside of a plant leaf that allow gases to enter and leave the leaf
Pollen (which is made at the top of the stamen in the anther)
They help dead animals and plants decompose (rot) which returns valuable nutrients to the soil
It prevents overcrowding so the young plants are not competing for food, water, light and space
Sexually (any plant that makes seeds is carrying out sexual reproduction)
Spider, Ladybird (any animal with more than four legs that eats other animals)
Frog, lizard, fish (any vertebrate unless it is a bird or a mammal)
Carbon dioxide( or water)
In pairs. For example the biceps pull the fore-arm down and the triceps pull it up
Wind, animals (little hooks on the seed), animals (the seed getting eaten) water or explosions
Nitrogen (magnesium or phosphorus)
The Sun
Wind or animals (usually bees or other insects)
By eating another animal
Producer (a plant)
The Sun
A plant
Asexual reproduction
Carry out photosynthesis
The joining of two special cells called gametes (the egg joining with a sperm or pollen joining with an ovule)
It either gets used to make energy (during respiration) or gets turned into starch
The nucleus
Pollen reaching the stigma of a plant
To absorb water from the ground
To carry out photosynthesis
Day and night. Respiration happens all the time
The cell formed when two gametes (the egg and sperm) join together
Nothing would rot. This means the plants would eventually run out of food and die
Around mid-day when the sunlight is strongest. Oxygen is being produced by photosynthesis which needs light.
More herbivores. The numbers of organisms  gets less as you travel up the food chain
temperature, rainfall (water), light intensity, type of soil
There would be fewer carnivores and more plants (primary producers)
At the top of the stamen (in the anther)
They help dead animals and plant rot, recycling the food for the plants