Cambridge IGCSE Biology - 0610 - Supplement Paper 2 2014 Summer Zone 2

Growth is a characteristic feature of living organisms.
Which process provides the energy for growth?
A. excretion
B. movement
C. respiration
D. sensitivity

The table shows the number of animals collected in a sample from some woodland and the groups to which they belong.

[Table_1]

How many arthropods were collected?

A 33 B 97 C 120 D 160

The diagram shows some animal cells, as seen under the microscope.

What will be present at X?
A one cell membrane
B one cell wall
C two cell membranes
D two cell walls

The diagram shows an animal.
Use the key to identify the animal.
1 wings present ............................... go to 2
wings absent ................................. go to 3
2 one pair of wings visible .................... A
two pairs of wings visible .................. B
3 three pairs of legs ........................... C
four pairs of legs ............................... D

The diagram shows a spongy mesophyll cell.

Which structures indicate that this is a plant cell?
A P and S
B Q and R
C R and P
D S and Q

The diagram shows a cell.
Which structure is not present?
A cell membrane
B cell wall
C cytoplasm
D nucleus

The diagram shows blood passing through an arteriole into a capillary. Part of the capillary wall has been cut away to show the blood.

What is the level of organisation of the structures labelled P and Q?
[Table_1]

Which structures contain a cell nucleus?

[Table_1]

[Table_1]
\begin{tabular}{|c|c|c|c|} \hline & \text{red blood cell} & \text{root hair cell} & \text{xylem vessel} \\ \hline \text{A} & \checkmark & \checkmark & \checkmark \\ \hline \text{B} & \checkmark & \times & \times \\ \hline \text{C} & \times & \checkmark & \times \\ \hline \text{D} & \times & \times & \times \\ \hline \end{tabular}
key
\checkmark = \text{nucleus}
\times = \text{no nucleus}

The diagram shows the movement of a concentrated sugar solution up a glass tube. The glass tube is connected firmly to a hollowed-out carrot.

Why does the sugar solution in the glass tube rise?
A Sugar molecules move across the carrot tissue into the glass tube.
B Sugar molecules move across the carrot tissue into the beaker.
C Water molecules move across the carrot tissue into the glass tube.
D Water molecules move across the carrot tissue into the beaker.

A plant absorbs water and oxygen into its roots. How are these substances absorbed?
[Table_1]
| | water | oxygen |
|---------|-------------|---------------|
| A | diffusion | transpiration |
| B | osmosis | diffusion |
| C | transpiration | osmosis |
| D | transpiration | transpiration |

The diagram shows the lock and key model of enzyme action.
Which is the enzyme and which is the substrate?
[Table_1]
| | enzyme | substrate | |--------|--------|-----------| | A | 1 | 2 | | B | 1 | 3 | | C | 3 | 1 | | D | 3 | 2 |

The table shows the temperature and pH at which four different enzymes are most active.
Which enzyme is a protease from the stomach?
[Table_1]

| | optimum temperature / °C | optimum pH |
|--------|--------------------------|------------|
| **A** | 25 | 10 |
| **B** | 37 | 7 |
| **C** | 40 | 2 |
| **D** | 50 | 5 |

The data show the concentrations of sugar and starch in an onion.
[Table_1]
The onion is tested with Benedict's solution and iodine solution.
Which set of results is correct?
[Table_2]

The small intestines of cows are similar in general structure and function to the small intestines of humans.
A disease in cows reduces the number of villi in their small intestines.
The cows lose weight and become weak.
What explains this?
A less amylase produced
B less peristalsis
C slower absorption of nutrients
D slower digestion of proteins

The diagram shows a palisade cell. In which region is starch stored?

Which heart valves are open and which are closed when blood passes out of the right ventricle towards the lungs?
A bicuspid (mitral) valve closed, tricuspid valve open
B bicuspid (mitral) valve open, semi-lunar valve closed
C tricuspid valve closed, semi-lunar valve open
D tricuspid valve open, bicuspid (mitral) valve open

A decrease in which factor normally causes transpiration rate to increase?
A humidity
B light intensity
C stomatal opening
D temperature

What is the path of water through a plant?
A) cortex cells → xylem → stomata → roots
B) root hair → xylem → mesophyll cells → stomata
C) roots → cortex cells → stomata → phloem
D) roots → root hair → stomata → xylem

What contains the greatest concentration of lactic acid?
A. a bottle of alcoholic drink
B. a loaf of freshly baked bread
C. muscle cells during vigorous exercise
D. yeast cells kept in glucose at 70°C for 30 minutes

Which two statements describe the effects of smoking cigarettes?
1 Cilia beat more quickly.
2 Cilia beat more slowly.
3 Goblet cells stop producing mucus.
4 Goblet cells produce more mucus.
A 1 and 3
B 1 and 4
C 2 and 3
D 2 and 4

A sample of expired air is collected in a gas jar. Another gas jar contains normal atmospheric air.

A lighted candle is placed inside each gas jar as shown. The time taken for each flame to go out is measured. As the candles burn they use up the oxygen available in the jar.



The table shows the results of this experiment.

[Table_1]

What is an explanation of the difference between the results in jars X and Y?

A. Jar X contains atmospheric air which has more carbon dioxide.
B. Jar X contains expired air which has more carbon dioxide.
C. Jar Y contains atmospheric air which has less oxygen.
D. Jar Y contains expired air which has less oxygen.

The diagram shows the human urinary system.
What is the part labelled X?
A. renal artery
B. renal vein
C. ureter
D. urethra

Which responses occur when a person is too hot?
[Table_1]:
| | sweat produced | shivering | blood vessels supplying skin capillaries |
|-----|----------------|-----------|--------------------------------------------|
| A | no | yes | constricted |
| B | no | yes | dilated |
| C | yes | no | constricted |
| D | yes | no | dilated |

The diagram shows the shoot of a seedling, fixed to a rotating platform that is being lit from one side only. The platform was allowed to rotate for two days, then it was left stationary for a further two days. Which diagram shows the appearance of the seedling after this four-day period? A B C D

How will the composition of a pregnant woman's blood change as it passes through the placenta?

[Table_1]

The diagram shows the female reproductive system.

At which labelled points are sperms and ova released?
[Table_1]

In arthropods, growth occurs only after the exoskeleton is shed and before the new one hardens.
Which graph shows a typical growth curve for an arthropod?

A: !(graph_A.png)
B: !(graph_B.png)
C: !(graph_C.png)
D: !(graph_D.png)

The graph shows changes in dry mass as a seed germinates and becomes a seedling.
At which point is it respiring and photosynthesising at the same rate?
[Image_1: Graph displaying changes in dry mass with points A, B, C, and D]

Which statement is true of both chromosomes and genes?
A. Each codes for a specific protein.
B. Each may be copied and passed on in mitosis.
C. Each may be either dominant or recessive.
D. Each may exist as two or more alleles.

Genetics is the study of
A. development of organisms.
B. mechanisms of inheritance.
C. nuclear division.
D. variation between species.

What is unlikely to be affected by the environment?
A. blood group
B. body mass
C. health
D. height

The diagram shows what happens to the energy that enters the atmosphere from the Sun.

How much of the Sun’s energy is not used for photosynthesis?
A less than 2%
B about 32%
C about 66%
D more than 98%

The surface waters of the ocean contain a population of microscopic plants.
Which factor would result in fewer of these plants?
A. an increase in the population of microscopic animals
B. greater concentration of mineral nutrients
C. higher temperature
D. more light

The diagram shows the water cycle.
Which letter represents transpiration?

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

What are products of respiration in green plants?
A glucose and carbon dioxide
B glucose and oxygen
C water and carbon dioxide
D water and oxygen

The diagram shows a food chain.

If the carnivores in trophic level 3 suddenly die out as a result of disease, in which trophic levels will the number of organisms be likely to decrease?
A 1 and 2
B 1 and 4
C 2 and 4
D 4 only

What is reduced when untreated sewage is released into rivers?
A. the amount of nitrate
B. the concentration of carbon dioxide
C. the concentration of oxygen
D. the number of bacteria

The diagram shows a food chain. A farmer sprays his cabbages with pesticide. Which organisms does the farmer want to kill?
[Image_1: A -> cabbages -> B -> greenflies -> C -> beetles -> D -> small birds]

What is an effect of pollution by nuclear fall-out?
A. deforestation
B. eutrophication
C. global warming
D. increased mutation rate