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Which organisms carry out respiration, growth, movement and excretion?
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The diagram shows an animal whose scientific name is *Falco peregrinus*.
To which species does it belong?
550
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530
What kind of skin do amphibians have?
504
592
530
The diagram shows a flowering plant.
Use the key to identify the plant.
527
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577
The diagram shows a plant cell.
In which labelled part of the cell is sugar made?
584
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566
Why do some root cells have root hairs?
530
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501
The table shows the concentration of gases in a blood vessel and in an alveolus.
Which row shows the conditions that cause a gas produced in respiration to diffuse from the blood vessel into the alveolus?
[Table_1]
571
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558
Which part of a plant root hair is partially permeable?
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567
The table shows the results of food tests carried out on a fruit.
[Table_1]
What did the fruit contain?
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An experiment was carried out to investigate the effect of pH on enzyme action. The graph shows the results. What are the labels for the x-axis and the y-axis?
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An experiment is set up as shown.
The green indicator turns yellow when the concentration of carbon dioxide increases. The green indicator turns blue when the concentration of carbon dioxide decreases.
After several hours, the indicator in test-tube X turned blue. The indicator in test-tube Y remained green.
Which process caused the colour change?
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In which part of the alimentary canal do chemical digestion and mechanical digestion take place?
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The diagram shows part of the alimentary canal.
Where is most water absorbed?
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A celery stalk was placed in a beaker which contained a red stain. After 24 hours, the red stain appeared at the top of the celery stalk.
Which structures stained red?
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A student is investigating the effect of temperature on the rate of transpiration. Which environmental conditions should be kept constant during this investigation?
[Table_1]
577
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549
The diagram shows the human heart. In which order does blood pass through the chambers during a complete circuit of the body after it returns from the lungs?
596
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547
The diagrams show some components of the blood of a mammal.
Which component causes the blood to start clotting?
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The body produces mucus as a defence against diseases.
What type of defence is stomach acid? [Table_1]
571
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534
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?
530
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507
Which row describes anaerobic respiration?
[Table_1]
587
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582
The diagram shows the excretory system.
What is structure X?
589
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599
The diagram shows structures in a reflex arc.
What is X?
528
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575
Which row describes the effect of the hormone adrenaline on breathing rate, pulse rate and pupil size?
[Table_1]
515
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506
The diagram shows a seedling growing inside a dark box.
What type of responses affect the direction of growth of the root and the shoot in this experiment?
[Table_1]
580
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585
The graph shows the number of alcohol-related deaths in men and women between the years 2001 and 2005 in one country.
Which conclusion is supported by the data in the graph?
581
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536
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?
550
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517
The list shows various terms used in sexual reproduction in organisms.
1. male gamete
2. female gamete
3. ovule
4. ovary
5. filament
6. fertilisation
7. haploid
Which terms are only used in sexual reproduction in plants?
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The diagram shows stages of a menstrual cycle. During which stage does menstruation occur?
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The diagram shows part of the female reproductive system with a birth control device in place.
Which birth control device is being used?
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574
Which chromosomes can be found in a single sperm?
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588
Which term is used for an organism that has two different alleles of a particular gene?
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508
What is an adaptive feature of an organism?
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What is required for natural selection to occur?
516
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543
What is the principal source of energy for most food chains?
552
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524
The diagram shows part of the carbon cycle. Which process is missing from the diagram?
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539
Genetic engineering has been used to produce human insulin.
Into which type of cell were the human genes for insulin inserted?
561
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535
What are reasons for using chemical fertilisers in food production?
[Table_1]
532
575
575
As well as carbon dioxide, which other gas is mainly responsible for the enhanced greenhouse effect?
585
559
544
