Cambridge IGCSE Biology - 0610 - Supplement Paper 2 2015 Summer Zone 2

The diagram illustrates some of the processes carried out by living organisms. [Image_1: Diagram with green plant and chicken showing oxygen, carbon dioxide, and waste products. Arrow X pointing from green plant to chicken]
Which characteristic of living organisms is represented by arrow X?
A. excretion
B. nutrition
C. respiration
D. sensitivity

The statements describe four different plants.
Which plant must be a monocotyledon?
A. The flowers are wind-pollinated.
B. The flowers each have five petals.
C. The leaves are large with a clear network of veins on them.
D. The leaves have parallel veins.

The diagram shows four arthropods.

How many of these arthropods are insects?
A 1
B 2
C 3
D 4

The diagram shows an animal.
Use the key to identify this animal.
1 body covered with scales ................... go to 2
body covered with hair ..................... go to 3
2 has a rounded bill ......................... A
has a pointed bill ........................ B
3 has webbed feet ........................... C
does not have webbed feet ................ D

Which diagram shows chloroplasts in their correct position in a plant cell?

The diagram shows a plant cell.
Which features show that it is a plant cell?
A It has a cell wall and a vacuole.
B It has a nucleus and cytoplasm.
C It has a nucleus but no chloroplasts.
D It has chloroplasts but no vacuole.

Which is not an organ?
A blood
B heart
C tooth
D vein

What results from the destruction of cilia in the trachea due to smoking?
A. Cilia cannot filter bacteria.
B. Cilia cannot trap dust.
C. Mucus cannot be manufactured.
D. Mucus cannot be carried towards the throat.

Which statements are correct for both diffusion and osmosis?

[Table_1]

Table 1:

An enzyme in potato cells causes oxygen to be produced from hydrogen peroxide.
Cubes of potato were incubated with hydrogen peroxide at different temperatures.
The numbers of bubbles of oxygen released per minute were counted at each temperature.
The table shows the results.

[Table_1]

| temperature/°C | 15 | 25 | 35 | 45 | 55 |
|----------------|----|----|----|----|----|
| number of bubbles/bubbles per minute | 96 | 98 | 82 | 36 | 1 |

The results suggest the optimum temperature for the enzyme is between which two values?

A 15°C and 35°C
B 35°C and 45°C
C 35°C and 55°C
D 45°C and 55°C

The diagram shows an experiment on the digestion of the protein in egg albumen by protease.
The protease was taken from a human stomach.
In which test-tube will the protein be digested most quickly?

Which row shows the elements and basic units that are used in the construction of large food molecules?

The diagram shows part of the human alimentary canal.
[Image_1: Diagram of the human alimentary canal]
In which part does protein digestion begin?

Poor nutrition can lead to a condition called rickets in which bones fail to develop properly.
The table shows some minerals and vitamins present in four foods.
Which food would be best for a child who has rickets?

[Table_1]

The diagram shows a plant shoot and the same shoot six hours later.



Which change in environmental conditions could cause this change in the shoot?
A. a decrease in available water
B. a decrease in light intensity
C. a decrease in wind speed
D. an increase in humidity

A celery stalk is placed in a beaker of blue dye. Once the dye reaches the leaves, the stalk is taken out and cut in half.


Which diagram shows the appearance of the cut end of the stalk?
A. 
B. 
C. 
D. 

Why does chewing food speed up digestion?
A. Bacteria in the food are killed.
B. Food is mixed with protease.
C. The surface area of the food is increased.
D. The taste of food is improved.

The table shows the composition of four samples of air.
[Table_1]

Which sample is inspired air and which sample is expired air?
[Table_2]

The diagram shows an experiment to investigate the respiration of yeast.



Which gas is evolved and which new compound is present after 24 hours?

[Table_1]

In which conditions do the leaves of a green plant respire?
[Table_1]

Which two substances are both reabsorbed in the kidneys?
A. glucose and salts
B. glucose and starch
C. glycogen and salts
D. glycogen and starch

Which organ makes urea?

A. bladder
B. kidney
C. liver
D. stomach

What are correct descriptions of mitosis and meiosis?

[Table_1]

The diagram shows two antagonistic muscles and the directions of movement that they produce.



Which row correctly identifies these muscles and the directions of movement they produce on contraction?

[Table_1]

The diagram shows a germinating broad bean seed which has been cut in half.



Which labels show the cotyledon and the plumule?

[Table_1: Cotyledon and Plumule]
[A: Cotyledon 1, Plumule 3]
[B: Cotyledon 1, Plumule 4]
[C: Cotyledon 2, Plumule 3]
[D: Cotyledon 2, Plumule 4]

The diagram shows some changes which take place during a woman’s menstrual cycle.

Assuming ovulation occurs on day 14, what is occurring at the time of ovulation?

A) a fall in the levels of oestrogen and progesterone

B) a fall in the level of progesterone only

C) a rise in the level of oestrogen

D) a rise in the level of progesterone and fall in the level of oestrogen

In addition to a suitable temperature, what else is always necessary for seed germination?
A. carbon dioxide and sunlight
B. mineral ions
C. sunlight and water
D. water and oxygen

What defines the development of an organism?
A. increase in age
B. increase in complexity
C. increase in height
D. increase in length

A man has three sons. What is the chance of his next child being a son?
A 0%
B 25%
C 50%
D 75%

The diagram shows a cross between heterozygous tall pea plants.


Which statement is not correct?
A. Offspring E and H are both homozygous.
B. Offspring F and G are both heterozygous.
C. The phenotypes of offspring E, F and G are the same.
D. The ratio of different phenotypes in the offspring is 1 : 1.

The bar chart shows the heights of pea plants grown from 500 pea seeds.

What variation do the plants show?
A continuous variation only
B discontinuous variation only
C both continuous variation and discontinuous variation
D neither continuous variation nor discontinuous variation

Which pair of statements about energy flow in ecosystems is correct?

[Table_1]

|| energy entering the ecosystem from the Sun || nature of energy flow ||
| A | light and chemical | cyclical |
| B | light and chemical | non-cyclical |
| C | light and heat | cyclical |
| D | light and heat | non-cyclical |

The diagram shows a food chain based on a tree.

Which diagram shows a pyramid of numbers for this food chain?

Which process forms part of the carbon cycle?
A combustion
B evaporation
C osmosis
D transpiration

Herbivores take in carbon atoms from plants. How do carbon atoms leave the herbivores?
[Table_1]

In which stages in the water cycle is the water in vapour form?
[Table_1: absorption by plant roots, movement from sea to clouds, precipitation, transpiration]
A: ✓, ✓, ✗, ✗
B: ✓, ✗, ✓, ✗
C: ✗, ✓, ✗, ✓
D: ✗, ✗, ✓, ✓

The graph shows how the population of the world has increased from 1650 until the present day.

What stage in the sigmoid population growth curve is represented by region P?
A) death phase
B) exponential (log) phase
C) lag phase
D) stationary phase

Lichens are organisms that do not grow well in air containing sulfur dioxide. Which graph shows the change in number of lichen species from the centre of an industrial city to the countryside 15 km away?
[Image_1: Four graphs labeled A, B, C, and D, each depicting 'number of lichen species' against 'distance from city centre/km', with values ranging from 0 to 15]

Which two gases both contribute to global warming?
A. carbon dioxide and methane
B. methane and oxygen
C. oxygen and sulfur dioxide
D. sulfur dioxide and carbon dioxide