Cambridge IGCSE Biology - 0610 - Supplement Paper 2 2010 Winter Zone 1

Which characteristic of living organisms can involve ingestion, absorption and assimilation?
A excretion
B growth
C nutrition
D respiration

Which system is used for naming species?
A. binomial
B. conservation
C. dichotomous
D. natural selection

The table shows some characteristic features of four vertebrates. Which vertebrate is a mammal?

[Table_1]

feature

| | scales | lays eggs | feathers | wings | hair |
|----------|--------|-----------|----------|-------|------|
| A | ✓ | ✓ | ✗ | ✗ | ✓ |
| B | ✗ | ✓ | ✗ | ✗ | ✗ |
| C | ✗ | ✓ | ✓ | ✓ | ✗ |
| D | ✗ | ✗ | ✗ | ✓ | ✓ |

key
✓ = present
✗ = not present

The diagram shows a student's drawing of guard cells.
Which label line is incorrect?

The diagram shows a cell from a plant leaf.
Which parts are not found in animal cells?
A 1 and 2
B 2 and 3
C 3 and 4
D 4 and 5

The diagram shows the breathing system and a section of an alveolus surrounded by a capillary. Which label shows a cell?

The diagram shows a structure found in the human body.
This is an example of
A. an organ.
B. an organism.
C. an organ system.
D. a tissue.

Water is a good solvent. What does this mean?
A. It dissolves well in many other substances.
B. It flows easily through vessels.
C. It is permeable to gases.
D. Many substances dissolve well in it.

The diagram shows two solutions that are separated by a partially permeable membrane.
[Image_1: Diagram showing dilute solution of sucrose X and concentrated solution of sucrose Y separated by a partially permeable membrane]
In which direction will most water molecules move in relation to their concentration gradient?
A from X to Y against their concentration gradient
B from X to Y down their concentration gradient
C from Y to X against their concentration gradient
D from Y to X down their concentration gradient

Two enzyme-controlled reactions are shown.
[Image_1: amino acids --enzyme 1--> proteins; proteins --enzyme 2--> amino acids]
From these reactions, what deduction can be made about enzymes?
A Enzyme 1 has been changed to enzyme 2.
B Enzyme 2 slows down the production of amino acids.
C Enzymes can build up large molecules.
D Enzymes only break down large molecules.

Six test-tubes were set up at different temperatures. Each contained identical solutions containing starch and amylase mixtures. The table shows the time taken for the reactions to finish in each test-tube.

[Table_1]
| temperature/°C | 15 | 25 | 35 | 45 | 55 | 65 |
| --- | --- | --- | --- | --- | --- |
| time/seconds | 35 | 22 | 13 | 5 | 35 | 66 |

At which temperature does the amylase work best?
A 15°C B 35°C C 45°C D 65°C

What does the digestion of starch produce?
A. fatty acids
B. glucose
C. mineral salts
D. water

Which type of tooth is used for crushing food?

The diagram shows a type of tooth.
[Image_1: Diagram of a tooth showing crown and root]
Use the key to identify the tooth.
1. double rooted tooth ............................................ go to 2
single rooted tooth ............................................ go to 3
2. flattened crown .................................................... A
deeply ridged crown ............................................. B
3. chisel shaped tooth ......................................... C
cone shaped tooth .......................................... D

The table shows vitamin and mineral salt content of four foods.

[Table_1]

Which foods would stop a person from suffering from anaemia (lack of haemoglobin) and scurvy (bleeding gums)?

[Table_2]

Which substance is lost from the body by the kidneys, lungs and skin?
A. carbon dioxide
B. excess ions
C. urea
D. water

How often must a blood cell in the renal artery pass through the heart before it again reaches the renal artery?
A. once
B. twice
C. three times
D. four times

The diagram shows blood vessel P which carries digested food from the small intestine to the liver.



Which row describes the level of glucose in blood vessel P and the level of glycogen in the liver, shortly after a meal containing carbohydrates?

[Table_1]

| | glucose in blood vessel P | glycogen in liver |
|------|---------------------------|--------------------|
| A | high | decreasing |
| B | high | increasing |
| C | low | decreasing |
| D | low | increasing |

What are the effects of smoking on the gas exchange system?

[Table_1]

Table 1:

What are the properties of an efficient gas exchange system, assuming it has a good blood supply?
A. large surface and thick walls
B. large surface and thin walls
C. small surface and thick walls
D. small surface and thin walls

Yeast, warm water and substance Z were put into a test-tube. The apparatus was then set up as shown. After a while, the lime water began to go cloudy.



What is substance Z?
A. alcohol
B. carbon dioxide
C. glucose
D. oxygen

Where do the breakdown of drugs and the storage of urine occur?
[Table_1]

The diagram shows some blood vessels near the surface of the skin. If vasoconstriction occurs at X, what happens to the blood flow at Y and Z? [Table_1]

The diagram shows a neurone carrying an impulse.

Which row describes the type of neurone and the direction of impulse?
[Table_1]

The diagram shows some bones and muscles in a leg of a human.
What happens to muscle Y and to the leg at joint Z, when muscle X contracts?
[Table_1]

The diagram shows some parts of the male reproductive system.
Which part is cut during a vasectomy?

The calendar shows the menstrual cycle of a woman in September 2008.
[Table_1]
key

Why could fertilisation not take place if sperms are released into the vagina on 8th September?
A. Sperms are washed out of the female uterus by the menstrual flow.
B. Sperms can survive in the female reproductive system only for 3 or 4 days.
C. Sperms must be released after ovulation for fertilisation to take place.
D. The uterus lining is washed out of the female body during menstruation.

In an experiment to investigate the effects of various environmental factors on germination, four boiling tubes were set up as shown.

(a) State in which tube would the seeds germinate most quickly.

(b) Explain your answer as mentioned in (a)

The graph shows how the height of a child changes with age.

When is the child’s growth rate fastest?

A. 0-1 years

B. 3-8 years

C. 14-15 years

D. 16-17 years

In some animals, B is the allele for normal skin (without spots) and b is the allele for spotted skin.
A pair of these animals has 37 offspring, 18 with spots and 19 without.
What are the most likely genotypes of the parents?
A. BB × BB
B. Bb × Bb
C. Bb × bb
D. bb × bb

Which type of reproduction and which type of cell division produces nuclei with half the number of chromosomes?

[Table_1]

The diagram shows a family tree and the inheritance of the ability to taste a certain substance. The allele for the ability to taste this substance is dominant.

Which statement about the genotypes of the sisters Mary and Jeanne is correct?
A Mary is heterozygous and Jeanne is homozygous.
B Mary is homozygous and Jeanne is heterozygous.
C They are both heterozygous.
D They are both homozygous.

The diagram shows a simple food web.
What must organism J be?
A a carnivore
B a decomposer
C a herbivore
D a producer

At each stage in a food chain, energy is lost.

What is a result of this?

A. All living organisms respire.
B. Food chains always begin with green plants.
C. Plants are called producers and animals consumers.
D. There are very few food chains with more than five organisms.

Which part of the carbon cycle involves the release of energy from food substances in all living cells?
[Image_1: Diagram illustrating the carbon cycle with labeled parts A, B, C, and D showing processes involving carbon dioxide in air, carbon compounds in green plants, carbon compounds in animals, dead plants and animals, and fossil fuels.]

The diagram represents the carbon cycle. Processes involved in the circulation of carbon are numbered 1 to 9.
Which processes are parts of a food web?
A 1, 2 and 3
B 1, 5 and 8
C 2, 4 and 9
D 6, 7 and 8

The diagram shows part of the water cycle.
Which processes will be slowed down by an increase in humidity?
A P and Q
B P and R
C Q and R
D Q and S

The graph shows the growth of a population in a suitable environment.

During which two stages is the population affected by lack of resources as a limiting factor?
A. T and U
B. U and V
C. V and W
D. W and T

What effect does deforestation have on the levels of carbon dioxide, oxygen and water vapour in the atmosphere?

[Table_1]

A persistent pesticide is one that does not break down.
What is one disadvantage of a persistent pesticide?
A. It becomes more concentrated at each level in the food chain.
B. It breaks down within a few months.
C. It only destroys one particular pest in the food chain.
D. It does not dissolve in water.