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IGCSE Co-ordinated SciencesBiology Portion Revision Questions

Name: ……………………………………………………………

COORDINATED SCIENCE – BIOLOGY PORTION 0654/1

Paper 1 Multiple Choice January 2012 45 minutesAdditional Materials: Multiple Choice Answer Sheet

Soft clean eraserSoft pencil (type B or HB is recommended)

READ THESE INSTRUCTIONS FIRSTWrite 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.

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.

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1 Which process removes the waste products of metabolism from the body?

A excretion

B nutrition

C reproduction

D respiration

2 The diagram shows some organisms living in water.

Which process is carried out by all the living organisms shown?

A photosynthesis

B pollination

C respiration

D transpiration

3 The diagram shows some liver cells as they appear under the microscope.

How many cell walls can be seen?

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A 0 B 2 C 3 D 5

4 The diagram shows a plant cell.

Which structures are the cell membrane, cell wall and cytoplasm?

5 On a dry, sunny day, how does water vapour move through the stomata of a leaf?

A into the leaf by diffusion

B into the leaf by osmosis

C out of the leaf by diffusion

D out of the leaf by osmosis

6 Which are characteristics of enzymes?

A They are carbohydrates and biological catalysts.

B They are carbohydrates and chemical messengers.

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C They are proteins and biological catalysts.

D They are proteins and chemical messengers.

7 Four foods were tested for

fat (using ethanol),

protein (using the biuret test),

reducing sugar (using Benedict’s solution),

starch (using iodine solution).

Which food contains protein and starch?

8 The graphs show the quantities of selected vitamins and minerals in four foods.

Which food is the richest source of the vitamin or mineral essential for the transport of

oxygen by the blood?

A beans

B eggs

C fish

D fruit

9 What is formed first in a leaf as a result of photosynthesis?

A cellulose

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B protein

C starch

D sugar

10 The diagram shows a photosynthesising water plant. The rate of photosynthesis is

measured by bubbles of gas released.

After a few minutes the bubbles cease.

Which factor in the water might be limiting the rate of photosynthesis?

A carbon dioxide

B nitrate

C oxygen

D water

11 A protease is added to a suspension of egg protein in a test-tube and kept at 37 °C.

After 8 minutes, the protein changes from cloudy to transparent.

Which product, or products, will now be present in the test-tube?

A amino acids

B a simple sugar

C fatty acids and glycerol

D water

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12 Which two substances are transported in the phloem?

A amino acids and protein

B amino acids and sucrose

C protein and starch

D starch and sucrose

13 Cobalt chloride paper is blue when dry but turns pink when wet. Some blue cobalt chloride paper was fastened to the upper and lower surfaces of a leaf on a plant X and a leaf on plant Y.

The diagram shows the results of the experiment.

Through which leaf surface was water lost most quickly?

A plant X, upper surface

B plant X, lower surface

C plant Y, upper surface

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D plant Y, lower surface

14 Which describes the structure and function of a red blood cell?

15 Which statement about respiration is not correct?

A All living cells respire.

B Heat is always produced.

C Plants respire in the light and in the dark.

D Plants take in carbon dioxide and give out oxygen.

16 Which equation represents anaerobic respiration in yeast?

A glucose → alcohol + carbon dioxide

B glucose → alcohol + water

C glucose → lactic acid + carbon dioxide

D glucose → lactic acid + water

17 A person has been smoking heavily for many years.

A lot of dust and micro-organisms enter their lungs.

Which statement explains why this occurs?

A Their arteries are blocked with tar.

B The cilia in the trachea have been destroyed.

C The person is addicted to nicotine.

D The surface area of the lungs is reduced.

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18 The diagram shows a cell.

What type of cell is shown?

A ciliated cell

B motor neurone

C relay neurone

D sensory neurone

19 When a person is frightened, adrenalin is released by the adrenal glands.

What are the effects of the adrenalin?

20 The diagram shows shoots of maize seedlings.

Which shoot shows negative geotropism?

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21 What is an example of homeostasis?

A breathing in oxygen

B regulating blood glucose

C removing undigested food through the anus

D urinating to empty the bladder

22 Which statement is correct about asexual reproduction?

A it result in production of genetically identical offspring.

B it result in production of genetically dissimilar offspring.

C it involves production of genetically dissimilar offspring from one parent.

D it involves production of genetically identical offspring from two parents.

23 The following four processes occur during reproduction in a plant.

1 The male nucleus fuses with the female nucleus.

2 The male nucleus is released from the pollen tube.

3 The male nucleus travels down the pollen tube.

4 The pollen grain grows a pollen tube.

In which order do these processes occur after pollination?

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24 The diagram shows four flasks which were set up to investigate the conditions needed for germination.

In which experiment will the seeds germinate most quickly?

25 Fruits can be dispersed by animals or by wind. The table contains descriptions of four fruits.

Which fruit will be dispersed by wind?

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26 Which shows where eggs and sperms are made?

27 The diagram shows a developing human fetus within the uterus.

What is a main function of X?

A passing faeces to the mother

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B passing oxygen to the fetus

C passing the mother’s blood to the fetus

D protecting the fetus from knocks

28 What is a method of preventing the spread of HIV?

A avoiding sharing cups for drinking

B checking blood before transfusions

C taking the contraceptive pill

D using spermicides

29 What is always found in female gametes and may be found in male gametes?

A one X chromosome

B one Y chromosome

C two X chromosomes

D one X chromosome and one Y chromosome

30 What is true of the chromosomes present in the daughter nuclei after meiosis and after mitosis?

31 The diagram shows a maize (corn) cob with purple and yellow fruits. Purple (P) is dominant to yellow (p).

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What are the genotypes of the parent maize plants?

A PP × Pp B PP × pp C Pp × Pp D pp × Pp

32 In rabbits, the allele for dark fur, R, is dominant to the allele for white fur, r.

The diagram shows a cross between a rabbit with dark fur and a rabbit with white fur.

What are the genotypes of the offspring?

A Rr and rr B RR and rr C RR and Rr D R and r

33 What is a mutation?

A a change in a gene or chromosome

B a condition caused by a recessive allele

C a process used in genetic engineering

D a type of discontinuous variation

34 Which two characteristics both show continuous variation?

A height and weight

B sex and sickle-cell anaemia

C sickle-cell anaemia and height

D weight and sex

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35 The size of the arrows shows the approximate, relative amounts of energy passing from

one stage to the next in a food chain.

Which chain represents the energy losses between trophic levels?

36 The diagram shows a food web.

Which arrow does not show the direction of energy flow?

37 The diagram shows a food chain.

A disease reduced the number of consumer 2.

What effect would this be likely to have on the numbers of consumer 1 and consumer 3?

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38 The diagram shows part of the carbon cycle.

Which process is taking place at X?

A combustion

B decomposition

C photosynthesis

D respiration

39 How will soil erosion and rainfall be affected by deforestation?

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40 The map shows a river flowing into the sea. The river is polluted by untreated sewage.

At which labelled point will the oxygen content of the water be lowest?