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Biology questions, chapter 2
Nama / NameKelas / ClassTarikh / Date

Cell Biology and Organisation

45 marks. Use Practice to check each answer as you go, or Exam to answer everything against the clock first.

Section A: objective questions

11 marks
Choose the best answer for each question.
1

Question 1

Which organelle is the site of aerobic respiration that releases energy as ATP?
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D
Mitochondria contain the enzymes for cellular respiration and release energy as ATP (p. 24).
For the teacher: Remembering, low difficulty, standard 2.1
Textbook p. 24
2

Question 2

Which structure is the site of protein synthesis?
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A
Ribosomes, made of protein and RNA, are where proteins are made (p. 25).
For the teacher: Remembering, low difficulty, standard 2.1
Textbook p. 25
3

Question 3

Which component is present in plant cells but absent in animal cells?
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C
Plant cells have a cellulose cell wall (also chloroplasts and a large vacuole).
For the teacher: Understanding, low difficulty, standard 2.1
Textbook p. 27
4

Question 4

Which pair correctly matches an organelle with its function?
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B
The Golgi apparatus processes, modifies, packs and transports chemicals. The lysosome digests; the centriole forms spindle fibres; the rough ER carries proteins.
For the teacher: Understanding, medium difficulty, standard 2.1
Textbook p. 24
5

Question 5

A student stained onion epidermis by placing iodine on one side of the cover slip and filter paper on the other. What is this technique called?
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D
Drawing the stain across with filter paper is the irrigation technique (p. 21).
For the teacher: Applying, medium difficulty, standard 2.1
Textbook p. 21
6

Question 6

How does Amoeba sp. move?
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D
Amoeba extends a pseudopodium and cytoplasm flows into it; Paramecium uses cilia.
For the teacher: Understanding, low difficulty, standard 2.2
Textbook p. 28
7

Question 7

Paramecium sp. is moved from fresh water to a very concentrated salt solution. What happens to the contractile vacuole?
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B
Less water enters by osmosis, so the vacuole needs to expel water less often.
For the teacher: Analysing, medium difficulty, standard 2.2
Textbook p. 29
8

Question 8

Why is a red blood cell biconcave and without a nucleus?
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A
This shape and the lack of a nucleus leave more room for haemoglobin, so it carries more oxygen.
For the teacher: Understanding, low difficulty, standard 2.3
Textbook p. 30
9

Question 9

Which cell would have the greatest density of rough endoplasmic reticulum?
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A
Cells that secrete protein products have abundant rough ER.
For the teacher: Applying, medium difficulty, standard 2.3
Textbook p. 36
10

Question 10

Which is the correct sequence of the levels of organisation?
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C
Cell, tissue, organ, system, organism.
For the teacher: Remembering, low difficulty, standard 2.4
Textbook p. 39
11

Question 11

Which plant tissue transports sucrose from the leaves to the other parts of a plant?
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B
Phloem transports organic matter such as sucrose; xylem carries water and mineral salts.
For the teacher: Understanding, low difficulty, standard 2.3
Textbook p. 36

Section B: structured questions

34 marks
Answer all questions. Write your answers in the spaces provided.
12

Question 12

Choose the cell type that has each of the following.
[1 mark] (a)A cell wall made of cellulose
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Plant cell only
[1 mark] (b)Centrioles
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Animal cell only
[1 mark] (c)Mitochondria
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Both
For the teacher: Remembering, low difficulty, standard 2.1
Textbook p. 27
13

Question 13

State the function of each cell component.
[1 mark] (a)Lysosome
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Tick each point you got.
[1 mark] (b)Nucleus
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Tick each point you got.
[1 mark] (c)Chloroplast
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Tick each point you got.
For the teacher: Understanding, low difficulty, standard 2.1
Textbook p. 24
14

Question 14

A student prepares a temporary slide of onion epidermis.
[1 mark] (a)Name the type of slide made.
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Tick each point you got.
[1 mark] (b)Why must the cover slip be lowered slowly at an angle?
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Tick each point you got.
[2 marks] (c)Name the stain used for plant cells and for cheek cells.
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Tick each point you got.
[1 mark] (d)State one difference the student would see between onion cells and cheek cells.
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Tick each point you got.
For the teacher: Applying, low difficulty, standard 2.1
Textbook p. 21
15

Question 15

Amoeba sp. lives in a freshwater pond.
[2 marks] (a)Describe how Amoeba sp. takes in food.
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Tick each point you got.
[1 mark] (b)Name the process in which the contractile vacuole removes excess water.
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Tick each point you got.
[2 marks] (c)Explain why Amoeba sp. needs this process in fresh water.
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Tick each point you got.
[1 mark] (d)State how Amoeba sp. survives unfavourable conditions.
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Tick each point you got.
For the teacher: Understanding, low difficulty, standard 2.2
Textbook p. 28
16

Question 16

The table shows the organelle found in large numbers in each of three cells.
CellOrganelle in large numbers
Sperm cellMitochondria
Goblet cellGolgi apparatus
Palisade mesophyll cellChloroplasts
[2 marks] (a)Explain why the sperm cell has many mitochondria.
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Tick each point you got.
[1 mark] (b)What is the product of the goblet cell?
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Tick each point you got.
[2 marks] (c)Explain why the palisade mesophyll cell has many chloroplasts.
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Tick each point you got.
For the teacher: Analysing, medium difficulty, standard 2.3
Textbook p. 36
17

Question 17

A farmer sprays a weed killer that stops root hair cells from absorbing minerals.
[1 mark] (a)State one adaptation of the root hair cell.
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Tick each point you got.
[1 mark] (b)Name the tissue that carries the minerals to the leaves.
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Tick each point you got.
[2 marks] (c)Explain why the weeds die.
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Tick each point you got.
For the teacher: Applying, high difficulty, standard 2.3
Textbook p. 31
18

Question 18

Arrange and relate the following.
[2 marks] (a)Write the sequence of levels of organisation from the simplest.
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Tick each point you got.
[2 marks] (b)Name the four types of tissue in the heart.
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Any 2 points
Tick each point you got.
For the teacher: Understanding, low difficulty, standard 2.4
Textbook p. 37
19

Question 19

Match each organ system with a main function, then answer.
[1 mark] (a)Lymphatic system
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Maintains balance of body fluids and prevents infection
[1 mark] (b)Skeletal system
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Supports the body
[2 marks] (c)Explain what would happen to a multicellular organism if its cells were not organised into tissues, organs and systems.
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Tick each point you got.
For the teacher: Evaluating, medium difficulty, standard 2.4
Textbook p. 38