Cambridge IGCSE Biology - 0610 - Supplement Paper 2 2013 Summer Zone 3

Which animal is not an arthropod?
: A. Centipede, B. Worm, C. Scorpion, D. Copepod

The diagram shows an animal found in fresh water.
Use the key to identify the animal.
1 body divided into segments ............... go to 2
body not divided into segments ........ go to 3
2 straight body .................................... animal A
curved body .................................... animal B
3 has a shell ........................................ animal C
has no shell .................................... animal D

Worms come to the soil surface after heavy rain.
Which characteristic of living organisms does this show?
A growth
B nutrition
C reproduction
D sensitivity

The diagram shows a sea lion.
Which labelled feature shows that this animal is a mammal?
[Image_1: Diagram of a sea lion with labels A (streamlined body), B (flipper), C (skin), D (whiskers)]

The diagram shows a bacterial cell.
[Image_1: Diagram of bacterial cell]
cytoplasm, DNA, cell wall, cell membrane
How is this cell different from a typical animal cell?
A. It has a cell membrane.
B. It has cytoplasm.
C. It has no chloroplasts.
D. It has no nucleus.

Which statement about xylem is correct?
A It carries sucrose.
B It converts light energy to chemical energy.
C It divides actively to help the plant to grow.
D It is no longer living.

Which of these tissues is not part of the organ with which it is paired?

[Table_1]

The diagram shows a plant cell.
In which labelled part of the cell is sugar made?

The diagram represents two liquids, separated by a membrane through which osmosis can occur.

[Image_1: Diagram showing two liquids separated by a membrane]
Key:
- O molecule of water
- 𐰷 molecule of dissolved substance

What movement of molecules will occur?
A Molecules of dissolved substance move from left to right.
B Molecules of dissolved substance move from right to left.
C Overall, water molecules move from left to right.
D Overall, water molecules move from right to left.

The scent from a bunch of flowers spreads throughout a room.
How does the scent spread?
A by conduction
B by diffusion
C by osmosis
D by transpiration

The diagram shows a specialised cell.
[Image_1: Diagram]
For which function is the cell adapted?
A absorption of water
B contraction of muscles
C movement of dust particles
D transport of oxygen

A student set up a test-tube containing starch, water and amylase.

How could the student test whether the amylase had digested all the starch?
A. Add Biuret solution.
B. Add dilute hydrochloric acid.
C. Add iodine solution.
D. Weigh the test-tubes and contents before and after the experiment.

A human cell contains a length of DNA that carries the code for making which substance?
A. fat
B. glycogen
C. lipase
D. starch

The diagram shows an experiment kept at room temperature. [Image_1: Diagram of test-tube with tubing containing starch, protease, protein and simple sugars, distilled water, and membrane permeable to small molecules only.]
What is present in the water surrounding the membrane after 45 minutes?
A. amino acids and simple sugars
B. protein and amino acids
C. protein and simple sugars
D. starch and simple sugars

The diagram shows the four types of human tooth.

Which teeth are used for cutting rather than grinding food?
A. 1 and 2
B. 2 and 3
C. 3 and 4
D. 4 and 1

The diagram shows the apparatus used in an investigation to measure the rate of oxygen production during photosynthesis.

The investigation was repeated several times and the average amount of gas collected was calculated.
Which extbf{two} factors must be kept constant during this investigation?
A. the amount of water in the beaker and the height of the measuring cylinder
B. the size of aquatic plant and the amount of gas in the measuring cylinder
C. the size of aquatic plant and the duration of exposure to light
D. the size of the beaker and the funnel

The photograph shows two blood cells, X and Y.

What are the functions of cells X and Y?

When does respiration take place in animals and plants?

[Table_1]

| | animals | plants |
|---|-------------|-------------|
| A | all the time| all the time|
| B | all the time| night time only|
| C | day time only| day time only|
| D | day time only| night time only|

Which chemical could be used to show that cells are respiring aerobically?
A. Benedict’s solution
B. dilute sulfuric acid
C. ethanol
D. limewater

The table shows the rate of water flow through a tree over a 12 hour period.

[Table]

The table:

| time of day | rate of flow / cm per hour |
|------------|-----------------------------|
| 7:00 | 100 |
| 9:00 | 120 |
| 11:00 | 140 |
| 13:00 | 250 |
| 15:00 | 300 |
| 17:00 | 260 |
| 19:00 | 180 |

What conclusion can be drawn from the table?

A) Between 7:00 and 17:00 hours the rate of flow continuously increases.
B) The greatest increase in rate of flow in a two-hour period is between 11:00 and 13:00 hours.
C) Water does not flow up through a tree at night.
D) Water flow is affected by humidity.

The diagram shows a double circulatory system.
Which vessels carry oxygenated blood?
A 1 and 2
B 1 and 4
C 2 and 3
D 2 and 4

Where is urea made?
A. intestines
B. kidney
C. liver
D. muscles

The diagram shows some ciliated cells from the trachea.
What is the function of the parts labelled X?
A detecting stimuli
B exchanging gases
C moving mucus
D trapping bacteria

Which food type, when eaten in excess, will cause a rise in the urea content of urine?
A. carbohydrate
B. fat
C. mineral salts
D. protein

A boy accidentally touches a very hot object and immediately takes his hand away. In this reflex action, what is the effector?
A a heat receptor in his hand
B a motor neurone
C a muscle in his arm
D the spinal cord

The diagram shows the eye of a person in a brightly-lit room.
What happens to distance F and distance G when this person moves into a dimly-lit room?
\begin{tabular}{|c|c|c|} \hline & \text{distance F} & \text{distance G} \\ \hline A & \text{becomes larger} & \text{becomes smaller} \\ \hline B & \text{becomes smaller} & \text{stays the same} \\ \hline C & \text{becomes smaller} & \text{becomes larger} \\ \hline D & \text{stays the same} & \text{becomes smaller} \\ \hline \end{tabular}

The graph shows the growth curves for boys and girls.
What is the approximate average growth rate of boys between 10 and 15 years old?
A 3.5 kg per year
B 18 kg per year
C 32 kg per year
D 50 kg per year

Which row shows how one type of gamete is transported so that fertilisation can occur in a flowering plant?
[Table_1:
| A | female | in a pollen grain |
| B | female | in a seed |
| C | male | in a pollen grain |
| D | male | in a seed |]

In which conditions will seeds germinate?

[Table_1]

Cystic fibrosis is an inherited disease that occurs when an individual is homozygous for a recessive allele.
If parents are both heterozygous for this characteristic, what is the probability that their first child will have cystic fibrosis?
A 0% B 25% C 50% D 100%

In cats, the allele for short hair is dominant to the allele for long hair. A short-haired cat gives birth to five kittens. Two of them have long hair.
Which statement must be correct?
A. Neither of the parents is heterozygous.
B. One parent is homozygous.
C. The female cat is heterozygous.
D. The male cat is heterozygous.

A single tree is food for a large population of caterpillars. Several small birds eat the caterpillars. The small birds are eaten by a bird of prey.
Which is the pyramid of biomass?

The diagram shows part of the carbon cycle.
Which letter represents photosynthesis?

Which organisms do not get their energy by eating other organisms?
A consumer
B decomposer
C herbivore
D producer

Which statement explains why the energy flow in a food chain is in one direction?
A. Decomposers recycle nutrients for plants.
B. Energy is not recycled.
C. Plants convert light energy to chemical energy.
D. The number of organisms decreases at each level in the food chain.

Rabbits eat grass and foxes eat rabbits.
What would cause the highest increase in the number of rabbits?
A) less grass and fewer foxes
B) less grass and more foxes
C) more grass and fewer foxes
D) more grass and more foxes

The diagram shows part of the water cycle. [Image_1: diagram showing a tree, cloud, rain, and soil with arrows indicating water cycle components]
How is water lost from the tree?
A. condensation
B. respiration
C. translocation
D. transpiration

What describes eutrophication and its effect on a river?
A. Nutrients are depleted in the river, causing bacteria to die. This allows plants to grow and deoxygenate the water.
B. Nutrients are depleted in the river, causing plants to die. These decompose, so the water is deoxygenated.
C. Nutrients enter the river, causing algae to grow. These die and decompose, so the water is deoxygenated.
D. Nutrients enter the river, causing plants to grow. These provide extra food for animals, which deoxygenate the water.

The bloodworm is found in heavily polluted water.

The diagram shows where raw sewage flows into a river.

Where would there be fewest bloodworms?

[Diagram showing the river with marked areas A, B, C, D and input of sewage]