You need to login before answering these questions


O Level Biology November 2014 5090/11

Cambridge International Examinations

Cambridge Ordinary Level

0909b85757fa710e8f270d52a882ed77.png


BIOLOGY

Paper 1 Multiple Choice

5090/11

October/November 2014

1 hour



READ THESE INSTRUCTIONS FIRST


Write in soft pencil.

Do not use staples, paper clips, 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

The diagram shows cells in the epidermis of a leaf.

23e6c01632eb83ff92c8ba795923ba1e.png

To complete the diagram, which structural features should be added to the cells P and Q?

2

The list shows the absorption of three different substances by organisms.

    1    mineral ions entering a root hair cell from the soil

    2    oxygen entering the blood from an alveolus

    3    water entering a root hair cell from the soil

In each case, what is the mechanism of absorption?

3

A cube of fresh potato is weighed. It is then placed in a test-tube containing a dilute solution of  sucrose. After an hour, its mass has increased.

Which process has occurred and what has happened to the concentration of the sucrose in the  solution in the test-tube?

4

The diagram illustrates the ‘lock and key’ hypothesis of enzyme action.

0cf09b5cb853ce4b4c085844b3454ddc.png

What are the enzyme, product and substrate in this reaction?

5

The equation for photosynthesis is represented below.

225ff7d46f9f610b5024f0509e403a5b.png

Which words should be in the boxes?

6

What are the effects of a lack of magnesium ions and nitrate ions on plant growth?

7

A plant is kept in the dark for two days. One of its leaves is used in an experiment to investigate  photosynthesis as shown in the diagram.

43a134a0c2686b5c2fc5cf42a98ed92d.png

What are the colours of Q and R, when the leaf is tested for starch using iodine solution?

8

Which foods can be eaten to prevent scurvy, anaemia and rickets?

9

Which blood vessels carry absorbed nutrients and oxygen into the liver?

10

A piece of butter containing fat is eaten.

After the fat has been swallowed, which chemicals will enter the stomach and the ileum?

11

The diagram shows a section through a root.

Which tissue transports amino acids?

5ab907c33509ef5731fb52d67cbbf6cc.png

12

Which statement describes transpiration?

13

Which blood vessels contain valves?

14

The diagram shows the circulatory system.

In which vessel is the blood pressure highest?

499a398d21dae194f34c49717c946465.png

15

The table shows the characteristics of the blood in one blood vessel in the body.

oxygen  concentration carbon dioxide  concentration pressure
highlowhigh

Which blood vessel contains blood with these characteristics?

16

Some characteristics of the human gas exchange system are listed.

    1    a difference in temperature between the air in the alveoli and the blood

    2    a large surface area of the alveoli and the blood capillaries

    3    a short diffusion distance between the air and the blood

    4    elastic fibres in the walls of the alveoli

Which factors affect the rate of oxygen uptake into the blood?

17

The diagram shows how some apparatus is set up to investigate respiration in germinating  seeds.

f0151893bbee6793571059dc78f4e2f5.png

The coloured oil drop moves along the capillary tube.

What causes the movement of the coloured oil drop?

18

Which apparatus can be used to investigate the production of carbon dioxide by anaerobic respiration of yeast?

19

The diagram shows a dialysis machine.

5e69a1271e3b4d6c79f0a3a97e0d141f.png

In a person whose health problems affect only the kidneys, which substances will move as shown  at P and Q?

20

A person’s kidneys remove waste from the blood and help to keep the composition of the blood  constant.

Which word describes these functions?

21

The diagram shows a section through the eye.

b78373a1426eaca111b29bc70ad5a27e.png

Which pair of structures focus light rays onto the retina?

22

Which hormone causes an increase in blood glucose concentration?

23

In what way is the pupil reflex different from some other reflexes?

24

What happens when the arm is straightened at the elbow?

25

The table lists the effects of four different drugs.

Which drug is heroin?

26

Which statement about penicillin is correct?

27

The diagrams show three organisms, not drawn to the same scale. Each diagram has its own  scale line.

5492edd8110864cf058d836d3e7ec12d.png

Using the same units (µm) in each diagram, what length is the scale line for each organism?

28

What is the main source of energy for green plants?

29

The diagram shows a pyramid of numbers in a woodland ecosystem.

At which trophic level are the individual organisms largest in size?

2bc1cefb91a9b9b033e3f4a983cb9f51.png

30

The diagram shows some of the stages in the nitrogen cycle.

59a1ece0e0ddfe0f6097ec894e29826b.png

What is process X?

31

Three statements about malarial parasites are listed.

    1    Insecticides are used to kill the vectors.

    2    Netting is used to keep the vectors away from people.

    3    People take drugs that stop the malarial pathogen developing.

Which methods can be used to control malaria?

32

In conservation the aim can be to maintain a large number of individuals within a species.

What will result from this?

33

The diagram represents a section through the human skin.

In which part is mitosis occurring most rapidly?

842ca61b3a29a0afd0449c5f12aaed00.png

34

The diagram shows a section of a seed.

834422d84101b05b507770cfbc9d599a.png

What are the numbered parts?

35

What is the role of progesterone in the menstrual cycle?

36

The diagram shows how the blood of a human embryo flows close to the mother’s blood in the  placenta.

6cb019809e7a3ddd054aeefbcf557138.png

Which substances are present at X in higher concentrations than at Y?

37

Which characteristic shows continuous variation?

38

In the ABO blood grouping system, which genotype is homozygous dominant?

39

Bacteria can be genetically modified to produce human insulin.

What is a possible danger of this procedure?

40

If a homozygous recessive is crossed with a heterozygous individual, what would be the ratio of  dominant to recessive individuals in the offspring?

___

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 2014

5090/11/O/N/14


Suggest answer