Biology Questions

Biology questions to help you revise.
For the answer hover your mouse over the word ‘Answer’

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1 Is a kidney best described as A: a cell, B: tissue, C: organ or D: organism?   [tooltips keyword=”Answer” content=An organ]
2 What organ in our body contains valves   [tooltips keyword=”Answer” content=Heart]
3 Name THREE features that would be found in ALL living cells.   [tooltips keyword=”Answer” content=Cytoplasm, cell membrane and the nucleus]
4 What is the normal pulse rate of a boy while resting?   [tooltips keyword=”Answer” content=80bpm]
5 Where can you easily measure the pulse?    [tooltips keyword=”Answer” content=At your wrist, the side of your neck or over your chest]
6 What is the normal body temperature of a human   [tooltips keyword=”Answer” content=37ºC]
7 Name three structures that would be found only in plant cells   [tooltips keyword=”Answer” content=Large vacuole, chloroplasts and a cell wall]
8 To which group of animals does a FROG belong?   [tooltips keyword=”Answer” content=Amphibian]
9 How long does it take a human embryo to develop in the uterus?   [tooltips keyword=”Answer” content=9 months]
10 In which cell structure does photosynthesis take place?
   [tooltips keyword=”Answer” content=Chloroplasts]
11 How many kidneys are in a normal mammal?   [tooltips keyword=”Answer” content=Two]
12 What function is carried out by our bladder   [tooltips keyword=”Answer” content=To store urine]
13 What happens to your pulse during exercise?   [tooltips keyword=”Answer” content=It will increase]
14 Enzymes help which process take place in our body?   [tooltips keyword=”Answer” content=Digestion]
15 Name three structures that you may find in a plant cell but NOT in an animal cell   [tooltips keyword=”Answer” content=Chloroplasts, Cell wall and a large vacuole]
16 What are the main features in a plant would you look for to show that it was pollinated by insects   [tooltips keyword=”Answer” content=Coloured petals]
17 A section from an animals liver would be best described as A: a cell, B: tissue, C: an organ or D: an organism.   [tooltips keyword=”Answer” content=Tissue]
18 The place where an animal makes its home is called the A: habitat, B: environment or C: community ?    [tooltips keyword=”Answer” content=Habitat]
19 What is the function of the heart?    [tooltips keyword=”Answer” content=To pump blood]
20 What are your lungs for?   [tooltips keyword=”Answer” content=To transfer oxygen into the blood (and remove carbon dioxide)]
21 Describe three ways that our body uses the energy released during respiration.   [tooltips keyword=”Answer” content=Growth, Warmth,  movement, repair of cells]
22 What do we call the process of breaking down food?    [tooltips keyword=”Answer” content=Digestion]
23 What do we mean by a nutrient?   [tooltips keyword=”Answer” content=A substance from food that our body needs]
24 What are the requirements of a newly born baby?    [tooltips keyword=”Answer” content=Protection, food, warmth, love]
25 What is the approximate mass of a new born baby? A: about 100g, B:about 1kg, C: about 4kg, D: about 10kg   [tooltips keyword=”Answer” content=Answer C (about 4kg)]
26 What food can provide us with protein?   [tooltips keyword=”Answer” content=Choose from: Cheese, egg, meat, soya (there are many other foods you could choose from.]
27 Describe four ways a person can help minimise the risk of heart disease   [tooltips keyword=”Answer” content=Eat less fat, Eat  less salt, Take exercise, Drink less alcohol, don’t smoke ]
28 Describe two ways that the body of a mammal conserves (saves) heat energy   [tooltips keyword=”Answer” width=”250″ content=A mammal has fur (or hair) and often a layer of fat.]
29 What substances that may harm the embryo pass through the placenta from the mother to the embryo. [tooltips keyword=”Answer” content=Alcohol, medicines and poisons from tobacco smoke]
30 Which part of a plant cell is used to make paper? [tooltips keyword=”Answer” content=The cell wall which is made of cellulose]
31 Describe one use for our brain  [tooltips keyword=”Answer” content=Coordinates actions, controls what the body does, memory]
32 How can your body lose heat energy if it is too hot?
 [tooltips keyword=”Answer” content=Sweating, ]
33 How does oxygen enter the body in a mammal? [tooltips keyword=”Answer” content=Through the lungs]
34 How does oxygen get delivered to the tissues in a human? [tooltips keyword=”Answer” content=Oxygen is in the blood which is being pumped around by the heart]
35 Name the waste gas produced during respiration [tooltips keyword=”Answer” content=Carbon dioxide]
36 How does the developing baby get its food? [tooltips keyword=”Answer” content=Through the placenta]
37 How often does the girls body make an egg? [tooltips keyword=”Answer” content=Once a month (every 28 days)]
38 How is the sperm different to an egg? [tooltips keyword=”Answer” content=A sperm is smaller and can move]
39 What is the name of the process by which energy for all living processes is made available [tooltips keyword=”Answer” content=Respiration]
40 What is the kidney for? [tooltips keyword=”Answer” content=remove waste chemicals from the blood]
41 Which part of a cell provides it with energy [tooltips keyword=”Answer” content=mitochondria]
42 Which part of a cell contains chromosomes (DNA)
 [tooltips keyword=”Answer” content=The nucleus]
43 What has to happen to an egg before it can start to develop into a baby? [tooltips keyword=”Answer” content=It has to be fertilized]
44 What is a zygote? [tooltips keyword=”Answer” content=A fertilized egg]
45 What is meant by a balanced diet [tooltips keyword=”Answer” content=A diet containing the correct nutrients in the right proportions]
46 When would you use a quadrat? Distilling wine, Studying a habitat, Filtering sea water
 [tooltips keyword=”Answer” content=Studying a habitat. A quadrat is used to help measure a population.]
47 What is meant by the gestation period? [tooltips keyword=”Answer” content=The time a baby mammal is inside its mother before it is born]
48 What is a saprophye
 [tooltips keyword=”Answer” content=A decay organism (like a fungus or bacteria)]
49 Imagine you are in a wood. At what time of day (or night ) would the carbon dioxide concentration be the highest?  [tooltips keyword=”Answer” content=Towards the end of the night (when photosynthesis is not taking place)]
50 Give TWO uses for our ears  [tooltips keyword=”Answer” content=Hearing and balance]
51 Why do we need to eat fresh vegetables and fruit?  [tooltips keyword=”Answer” content=To provide us with vitamins and minerals]
52 Why do we carry out respiration?
  [tooltips keyword=”Answer” content=To provide the cells in our body with energy]
53 What is the word equation for respiration?  [tooltips keyword=”Answer” content=Oxygen + glucose → Carbon dioxide + water + energy]
54 Which part of our body consists mostly of nerve cells?  [tooltips keyword=”Answer” content=The brain]
55 Name 5 important important nutrients in a balanced diet?  [tooltips keyword=”Answer” content=Carbohydrates, protein, vitamins, minerals, fibre (and water)]
56 Why does a plant carry out photosynthesis?
  [tooltips keyword=”Answer” content=To make glucose and starch]
57 What is the word equation for photosynthesis?
  [tooltips keyword=”Answer” content=carbon dioxide + water + energy from the sun → Glucose + oxygen]
58 Where is the male gamete found in humans?  [tooltips keyword=”Answer” content=The testes]
59 Where is the egg formed in a human?  [tooltips keyword=”Answer” content=The ovaries]
60 What is a parasite?
 [tooltips keyword=”Answer” content=An organism that lives in (or on) another living organism (eg a flea on a dog]
61 How can you test for the presence of starch in food  [tooltips keyword=”Answer” content=Add iodine solution which will turn a blue-black colour]
62 Where in the mother’s body does the embryo develop?   [tooltips keyword=”Answer” content=The uterus]
63 Name the products of photosynthesis  [tooltips keyword=”Answer” content=Oxygen and glucose]
64 Which part of a plant manufactures food by photosynthesis? Root, Flower, Stem or Leaves
  [tooltips keyword=”Answer” content=Leaves]
65 Which part of a plant is where the seeds are made? Root, Flower, Stem or Leaves   [tooltips keyword=”Answer” content=Flower]
66 Which part of the body removes soluble waste and excess water from the blood.  [tooltips keyword=”Answer” content=The kidney]
67 Which part of a plant absorbs water from the ground? Root, Flower, Stem or Leaves   [tooltips keyword=”Answer” content=Roots]
68 When does photosynthesis take place in a plant: A: Day-time only. B: Night-time only, C: Day and night D: Never   [tooltips keyword=”Answer” content=Day time only]
69 How is the root of a plant adapted to help it absorb water?
  [tooltips keyword=”Answer” content=It has elongated cells forming root hairs which give it a larger surface area]
70 When you eat a nice juicy strawberry… which part of the plant are you eating?  [tooltips keyword=”Answer” content=The fruit (or ovary)]
71 Which part of our body carries oxygenated blood away from the heart?  [tooltips keyword=”Answer” content=Arteries]
72 How are leaves specially adapted for photosynthesis?  [tooltips keyword=”Answer” content=They have more chloroplasts along the top surface and usually a large surface area. ]
73 Pollen reaching the stigma of a plant is known as what? Fertilization, pollination, transpiration or germination  [tooltips keyword=”Answer” content=Pollination]
74 What are stomata?  [tooltips keyword=”Answer” content=Tiny holes on the underside of a plant leaf that allow gases to enter and leave the leaf]
75 A seed starting to grow is known as what? Fertilization, pollination, transpiration or germination  [tooltips keyword=”Answer” content=Germination]
76 Where is the male gamete found in plants?  [tooltips keyword=”Answer” content=Pollen (which is made at the top of the stamen in the anther)]
77 Describe the importance of microbes (tiny animals) that live in the soil  [tooltips keyword=”Answer” content=They help dead animals and plants decompose (rot) which returns valuable nutrients to the soil]
78 How does the wide dispersal of the seeds help the survival of a plant species  [tooltips keyword=”Answer” content=It prevents overcrowding so the young plants are not competing for food, water, light and space]
79 Does grass reproduce sexually or asexually?  [tooltips keyword=”Answer” content=Sexually (any plant that makes seeds is carrying out sexual reproduction)]
80 Name any carnivorous invertebrate   [tooltips keyword=”Answer” content=Spider, Ladybird (any animal with more than four legs that eats other animals)]
81 Name any cold-blooded vertebrate  [tooltips keyword=”Answer” content=Frog, lizard, fish (any vertebrate unless it is a bird or a mammal)]
82 Name one substance needed by plants for photosynthesis to take place   [tooltips keyword=”Answer” content=Carbon dioxide( or water)]
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
   [tooltips keyword=”Answer” content=In pairs. For example the biceps pull the fore-arm down and the triceps pull it up]
84 Is a berry normally found on a female plant or a male plant?  [tooltips keyword=”Answer” content=Female]
85 Name three methods by which seed dispersal usually takes place.   [tooltips keyword=”Answer” content=Wind, animals (little hooks on the seed), animals (the seed getting eaten) water or explosions]
86 Name an important element needed by plants.   [tooltips keyword=”Answer” content=Nitrogen (magnesium or phosphorus)]
87 From where do the producers in a food chain obtain their energy?  [tooltips keyword=”Answer” content=The Sun]
88 Name two methods by which pollination can take place  [tooltips keyword=”Answer” content=Wind or animals (usually bees or other insects)]
89 From where would the predator in an ecosystem obtain its energy?  [tooltips keyword=”Answer” content=By eating another animal]
90 The first organism in a food chain is always a: A: producer, B: carnivore, C: predator or D: consumer  [tooltips keyword=”Answer” content=Producer (a plant)]
91 What is the initial source of energy in any ecosystem?  [tooltips keyword=”Answer” content=The Sun]
92 What is meant by a primary producer?  [tooltips keyword=”Answer” content=A plant]
93 Taking cuttings, budding, forming tubers and runners are all examples of what process?   [tooltips keyword=”Answer” content=Asexual reproduction]
94 What biological process releases oxygen into the atmosphere?   [tooltips keyword=”Answer” content=Photosynthesis]
95 What could a plant cell NOT do if it had no CHLOROPLASTS?  [tooltips keyword=”Answer” content=Carry out photosynthesis]
96 What does fertilize mean?  [tooltips keyword=”Answer” content=The joining of two special cells called gametes (the egg joining with a sperm or pollen joining with an ovule)]
97 What green chemical, found in plant cells, is necessary for photosynthesis to take place?   [tooltips keyword=”Answer” content=Chlorophyll]
98 What happens to the glucose (a kind of sugar) produced by plants during photosynthesis?  [tooltips keyword=”Answer” content=It either gets used to make energy (during respiration) or gets turned into starch]
99 What type of food do herbivores usually eat?  [tooltips keyword=”Answer” content=Plants]
100 Which structure in a cell contains the genetic material?   [tooltips keyword=”Answer” content=The nucleus]
101 What is meant by pollination?   [tooltips keyword=”Answer” content=Pollen reaching the stigma of a plant]
102 What is the function of the roots of a plant?  [tooltips keyword=”Answer” content=To absorb water from the ground]
103 What is the main function for the leaves of a plant.   [tooltips keyword=”Answer” content=To carry out photosynthesis]
104 What is the name of the process by which plants manufacture sugars?   [tooltips keyword=”Answer” content=Photosynthesis]
105 When does respiration take place in a plant: A: Day-time only. B: Night-time only, C: Day and night D: Never   [tooltips keyword=”Answer” content=Day and night. Respiration happens all the time]
106 What is a zygote?
   [tooltips keyword=”Answer” content=The cell formed when two gametes (the egg and sperm) join together]
107 What would be the effect on an ecosystem if the saprophytes all died?   [tooltips keyword=”Answer” content=Nothing would rot. This means the plants would eventually run out of food and die]
108 Imagine you are in a wood. At what time of day (or night ) would the oxygen concentration be the highest?   [tooltips keyword=”Answer” content=Around mid-day when the sunlight is strongest. Oxygen is being produced by photosynthesis which needs light.]
109 Would you expect to find more carnivores or herbivores in an ecosystem?   [tooltips keyword=”Answer” content=More herbivores. The numbers of organisms  gets less as you travel up the food chain]
110 Name four physical factors that can effect the environment of an organism   [tooltips keyword=”Answer” content=temperature, rainfall (water), light intensity, type of soil]
111 What would be the effects on an ecosystem if all the herbivores suddenly died or left?  [tooltips keyword=”Answer” content=There would be fewer carnivores and more plants (primary producers)]
112 Where is pollen made in a plant?
  [tooltips keyword=”Answer” content=At the top of the stamen (in the anther)]
113 What is the importance of decomposers in an ecosystem  [tooltips keyword=”Answer” content=They help dead animals and plant rot, recycling the food for the plants]