Cambridge IGCSE Biology - 0610 - Supplement Paper 2 2011 Winter Zone 3

Which structure is found in a palisade cell but not in a liver cell?
A. cell membrane
B. central vacuole
C. cytoplasm
D. nucleus

What are the levels of organisation of
• the wall of a villus,
• the small intestine?

[Table_1]
Table 1:

| | wall of a villus | small intestine |
|--------|----------------|----------------|
| A | cell | organ |
| B | cell | organ system |
| C | tissue | organ |
| D | tissue | organ system |

Which characteristic of living organisms is described by the following definition?
‘The ability to detect changes in the environment and make responses’.
A excretion
B movement
C respiration
D sensitivity

Phloem is an example of
A. a cell.
B. a tissue.
C. an organ.
D. an organ system.

Which cell shows the position of the nucleus correctly?

Which animal is an annelid?
1 has legs ............................................. go to 2
has no legs ........................................ go to 3
2 has six legs............................................. organism A
has eight legs ..................................... organism B
3 has a shell ......................................... organism C
has no shell ......................................... organism D

What is the correct order of arthropod groups, from those with most legs to those with fewest legs?
A. arachnids → crustaceans → insects → myriapods
B. crustaceans → myriapods → insects → arachnids
C. insects → arachnids → myriapods → crustaceans
D. myriapods → crustaceans → arachnids → insects

Root hair cells are found on plant roots.
Which feature would be present in a root hair cell but not a sperm cell?
A. cell membrane
B. cell wall
C. chloroplasts
D. cytoplasm

The diagram shows the action of amylase.

What is the function of the enzyme amylase?
A. breaks down the substrate into amino acids
B. changes the product into the substrate
C. increases the rate of starch breaking down into glucose
D. increases the rate of starch breaking down into maltose

Dietary fibre passes through several structures after leaving the stomach.
In which order does the dietary fibre pass through these structures?
A) duodenum → ileum → colon → rectum
B) duodenum → ileum → rectum → colon
C) ileum → duodenum → colon → rectum
D) ileum → duodenum → rectum → colon

Small molecules are used as the basic units in the synthesis of large food molecules.
Which statement is correct?
A Amino acids are basic units of carbohydrates.
B Fatty acids are basic units of glycogen.
C Glycerol is a basic unit of oils.
D Simple sugar is a basic unit of protein.

What happens in osmosis?
A) movement of solute molecules against their concentration gradient
B) movement of solute molecules down their concentration gradient
C) movement of water molecules against their concentration gradient
D) movement of water molecules down their concentration gradient

The roots of plants take up nitrates from the soil.
What are the nitrates used to make?
A. fat
B. glucose
C. protein
D. starch

The diagram shows a fetus attached by the placenta to the uterus wall of the mother.

By which process do all substances pass between the fetus and the mother in the placenta?
A diffusion
B nutrition
C osmosis
D respiration

Which is an incisor tooth?

A human digestive enzyme breaks down its substrate at a fast rate at 35°C.
What would occur if the enzyme and substrate were kept at 75°C?
A. The enzyme would stop working and be denatured.
B. The reaction would continue at the same rate.
C. The reaction would take place more quickly.
D. The reaction would take place more slowly.

An experiment is set up to investigate the uptake of oxygen by germinating seeds.
What happens to the levels at X and Y?

[Table_1]

X | Y
A | falls | rises
B | falls | unchanged
C | rises | falls
D | rises | unchanged

Which type of cells do all sense organs contain?
A. ciliated
B. effector
C. mesophyll
D. receptor

Which materials are excreted by kidneys and lungs?
[Table_1]

[Table_1]:
\begin{array}{|c|c|c|} \hline & \text{kidneys} & \text{lungs} \\ \hline A & \text{carbon dioxide} & \text{carbon dioxide} \\ B & \text{carbon dioxide} & \text{urea} \\ C & \text{urea} & \text{carbon dioxide} \\ D & \text{urea} & \text{urea} \\ \hline \end{array}

The diagram shows a germinated bean seed with a horizontal radicle. This is placed on a slowly rotating disc and is left for three days.

Which diagram shows the appearance of the radicle after three days?
A

B

C

D

The graph shows the variation in a person's body temperature over a period of time.
Which temperature change is likely to cause most sweating?

Which group contains substances that are all carried in the blood?
A. amino acids, carbon dioxide and cellulose
B. glucose, glycogen and lactic acid
C. oestrogen, oxygen and starch
D. salts, testosterone and urea

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


Which change in environmental conditions could cause this change in the appearance of 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

Which process does not release carbon dioxide to the atmosphere?
A. decomposition of animals
B. photosynthesis of plants
C. respiration of animals
D. respiration of plants

In what form does a plant absorb and lose water?
[Table_1]

The diagram shows the male reproductive system.

What is the tube labelled X?

A rectum
B sperm duct (vas deferens)
C ureter
D urethra

The colour of a mouse's fur is controlled by a single pair of alleles.
A mouse with black fur was crossed with a mouse with white fur. All the offspring had black fur.
What would be the most likely ratio in several litters of offspring if two of these black offspring were crossed?
[Table_1:

Which is not growth of an organism?
A increase in dry mass
B increase in the number of cells
C permanent increase in size
D swelling by absorbing water

The diagram shows the early growth of a green plant.
What is occurring?
[Table_1]
| | mitosis | development |
|-----|---------|-------------|
| A | ✓ | ✓ |
| B | ✓ | ✗ |
| C | ✗ | ✓ |
| D | ✗ | ✗ |
Key:
✓ = occurs
✗ = does not occur

The diagram shows a potato tuber that developed from the stem of a parent potato plant. Three shoots are starting to grow from the tuber.
How do the genotypes of the shoots compare with the genotypes of the tuber and of the parent?
A. They are all different.
B. They are all identical.
C. The shoots are identical to each other, but are different from the tuber and the parent.
D. The shoots are identical to the tuber, but are different from the parent.

The diagram shows a neurone.

Which structures could be found at X and Y?

[Table_1]

What are the chromosomes for the two sexes in human beings?
[Table_1]

The diagram shows four places on a river, where water samples were taken.
Which graph shows oxygen concentrations in the river?

The diagram shows the carbon cycle.
Which process produces carbon dioxide from substances made by photosynthesis millions of years ago?

Different pesticides were tested to see how poisonous they were to fish. Scientists found the concentration of pesticide that killed 50\% of the fish within four days.
The table shows the results of the tests.

[Table_1]

Which pesticide was the most dangerous to the fish?
A DDT
B dieldrin
C malathion
D parathion

The diagram gives a simplified scheme for energy flow through an ecosystem.

Which processes do the labelled arrows represent?
[Table_1]

The graph shows the rate of growth for a population of herbivores.
Which is the exponential (log) phase in the growth of this population?

The diagram shows a food web.
At which level does energy from the Sun enter the food web?

The diagram shows part of the carbon cycle.
Which numbers represent excretion?
A 1 and 2
B 1 and 4
C 2 and 3
D 3 and 4

The food chain shows the number of animals relying on two bushes for their survival.
At which step in the food chain do the organisms have the greatest amount of energy?

A
2 bushes with several thousand leaves → 150 snails → 10 small birds → 2 hawks