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O Level Biology November 2013 5090/11

UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS

General Certificate of Education Ordinary Level

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BIOLOGY 5090/11
Paper 1 Multiple Choice
5090/11
October/November 2013
1 hour


Additional Materials:

Multiple Choice Answer Sheet
Soft clean eraser
Soft pencil (type B or HB is recommended)


READ THESE INSTRUCTIONS FIRST

Write in soft pencil.
Do not use staples, paper clips, highlighters, glue or correction fluid.
Write your name, Centre number and candidate number on the Answer Sheet in the spaces provided unless this has been done for you.
DO NOT WRITE IN ANY BARCODES.


There are forty questions on this paper. Answer all questions. For each question there are four possible  answers A, B, C and D.
Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet.

Read the instructions on the Answer Sheet very carefully.

Each correct answer will score one mark. A mark will not be deducted for a wrong answer.
Any rough working should be done in this booklet.
Electronic calculators may be used. 


1

A plant is grown in bright sunlight. The diagram shows what is seen when a cell from this leaf is  placed under a microscope. After a few hours, a leaf from this plant is stained with iodine solution.

What will be stained blue/ black?

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2

The diagram represents apparatus used to investigate osmosis.

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Which molecules will move across the partially permeable membrane and which change will  occur in the solution level?

3

The small intestine of a person contains a lower concentration of glucose than is present in the  blood. 

The cells of the villi absorb glucose.

By which process is the glucose absorbed?

4

Which statements are correct for all enzymes?

    1    They are proteins.

    2    They are secreted into the alimentary canal.

    3    They speed up biochemical reactions.

    4    None of them work at low pH.

5

Which signs show that a plant has been grown in soil deficient in magnesium ions?

6

What is a function of each of these types of plant cell?

7

The diagram represents a cross section of part of a leaf.

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How does the oxygen content of the air at X compare to normal atmospheric air, when the leaf is  in the light and when it is in the dark?

8

An investigation is carried out on digestion and absorption in the alimentary canal. The diagram  shows the apparatus used. The visking tubing is permeable to small molecules such as glucose but not to large molecules such as starch.

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After one hour, samples of water in the beaker are tested with Benedict’s solution and with iodine  solution.

Which colours are obtained?

9

What are the substrate and end-products of digestion by the enzyme lipase?

10

Food tests were carried out on four different substances.

Which substance contained both protein and reducing sugar?


key
✓= positive
✗= negative

11

In which direction do water molecules move in the phloem and in the xylem of a plant stem?

12

Four similar leafy shoots are exposed to different conditions. The rates of water uptake and the  rates of water loss are measured.

The results are shown in the table.

Which shoot is most likely to wilt?

13

What is the correct route for blood flow in a human?

14

The table refers to blood vessels in the human body.

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What are P, Q, R and S?

15

The diagram shows an investigation of blood flow in the veins of the lower arm.

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A cloth is tightly wrapped round the arm at point Z and the veins stand out clearly. One finger  presses firmly on the vein at W.

When another finger strokes the vein, as shown in the diagram, the vein lies flat between points  W and Y.

Four reasons are given to explain why the vein lies flat.

    1    The bandage at Z prevents backflow of blood.

    2    The finger pressed at W prevents more blood entering the vein.

    3    A valve at Y prevents backflow of blood.

    4    A valve at Z prevents more blood from entering the vein.

 Which are correct?

16

Seals are marine mammals. When they dive under water, they are capable of respiring  anaerobically for long periods. During this time, blood flow to the muscles is greatly reduced but the muscles are able to tolerate high concentrations of lactic acid.

The graph shows the concentrations of lactic acid and oxygen in the blood of a seal before, during and after a dive.

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What explains the change in lactic acid concentration during time X?

17

Which process does not result in an overall loss of energy from the organism?

18

A person begins to smoke a cigarette at time X. The graph shows how their heart rate changes.

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Which substance in cigarette smoke is the main cause of the change in heart rate between  10 and 18 minutes?

19

In a kidney dialysis machine, which substance cannot diffuse through the dialysis membrane?

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20

The diagram shows some of the structures seen in a section through human skin.

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What is the function of structure X?

21

Which row describes the shoulder joint of an arm?

22

The diagram shows a section through the eye.

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In the pupil reflex, which row gives the sites of the effectors and receptors involved?

23

In a person suffering from diabetes mellitus, how do the concentrations of glucose in the blood  and in the urine differ from those of a healthy person?

24

A local anaesthetic is a drug used to block nerve impulses. The diagram represents part of the  nervous system. X,Y, and Z show sites where the anaesthetic can be injected.

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In an experiment, one person can feel a pin prick their leg but cannot move their leg.

Where was the anaesthetic injected in this person?

25

Chemicals in tobacco smoke lead to the breakdown of the elastic tissue in the walls of the alveoli.

What is the name of this condition?

26

The table shows the characteristics of four microorganisms.

Which one could be a virus?


key
✓= true
✗= false

27

When bacteria act on milk, which row describes the formation of yoghurt?

28

Which processes increase and decrease the amount of carbon dioxide in the air?

29

The flow chart shows part of a food web in a field.

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What describes both the earthworm and the woodlouse?

30

The diagram shows parts of the nitrogen cycle.

Which arrow represents the action of the root nodule bacteria of leguminous plants?

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31

One method of preventing malaria is to reduce the number of vectors.

Which control method will achieve this?

32

The graph shows how the pH of a lake has changed in the period 1500AD to 2000AD.

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What could have caused the change in the pH over the last 100 years?

33

The diagram shows an experiment to find out if seeds need oxygen to germinate.

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Which change would make tube Y an effective control?

34

The diagram shows part of a flower after it has been pollinated.

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Which row correctly identifies one of the labelled structures?

35

What is the result of cutting both the sperm ducts in a man?

36

The diagram shows a section through the female reproductive system.

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During pregnancy, where does mitosis occur in the cells of the embryo?


key
✓= takes place
✗= does not take place

37

Some genotypes that occur in blood groups are given.

Which genotype results in a phenotype that shows co-dominance?

38

A human cell contains all of the following.

Which is the smallest in size?

39

The allele for white flowers is recessive to the allele for red flowers.

Which statement is not correct?

40

What is a result of natural selection?

___

Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity.

Cambridge International Examinations is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of University of Cambridge Local Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge.

© UCLES 2013

5090/11/O/N/13


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