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What is a characteristic of all living organisms?
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568
Which term is used to describe a group of living things that can reproduce to produce fertile offspring?
594
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531
Scientists discover a new species of animal.
It has a segmented body with two pairs of legs on each segment.
To which group of animals does this new species belong?
597
521
520
Which part of a cell makes glucose?
563
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539
The diagram shows some of the blood vessels and other structures in the human body.
The blood vessels shown are all parts of the same
543
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577
A photograph shows a plant cell nucleus measuring 2 mm across.
If the magnification of the cell is ×500, what is the actual size of the nucleus?
558
502
537
By which process do oxygen and carbon dioxide move between cells and capillaries?
541
537
581
A cylinder of potato tissue was placed in a concentrated salt solution. After soaking for one hour the potato tissue was observed. How will the potato tissue have changed after soaking for one hour?
500
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551
Which element is found in proteins but not carbohydrates?
563
584
554
Starch is digested by amylase in the mouth, but it is not digested in the stomach. What is the reason for this?
589
586
551
Which statement about an enzyme-controlled reaction is correct?
567
555
537
A plant with striped leaves was kept in bright light for six hours.
A leaf was taken from the plant and the chlorophyll was removed. The leaf was then tested for starch using iodine solution.
Which diagram shows the result of the test?
571
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The diagram shows a cross-section of a leaf.
What is the name of cell X?
546
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In humans, where does most of the absorption of digested food take place?
542
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573
The diagram shows part of the human body.
Which statement about organs X and Y is correct?
534
541
561
What are the functions of human incisors and molars?
502
566
570
Which sequence describes the pathway taken by water as it moves through a plant?
598
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576
A plant shoot is placed in a solution of dye.
The dye moves up the stem.
Under which conditions will the dye move most slowly?
[Table_1]
529
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598
The diagram shows a cross-section through a human blood vessel.
Which type of blood vessel does the diagram show?
526
529
557
What is a function of some white blood cells?
550
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523
The diagrams show the depth and rate of breathing in a person at 12:00 and 13:00.
What happens to the person's breathing between 12:00 and 13:00?
584
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591
What is the link between muscle contraction, protein synthesis and the maintenance of a constant body temperature?
522
530
537
What are the products of anaerobic respiration in yeast? [Table_1]
588
579
587
The diagram shows some of the organs in the human body.
Which row matches the function to the correct organ?
[Table_1]
528
551
525
The diagram shows a reflex arc. Which labelled part is the effector?
519
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598
A person's iris is damaged. What is the effect of this?
504
522
582
Which hormone is secreted by the pancreas?
558
537
505
The graph shows how smoking different numbers of cigarettes for different lengths of time affects the risk of lung cancer.
Which conclusions are supported by the data in the graph?
1. Smoking more than 20 cigarettes per day always increases the risk of lung cancer more than smoking less than 20 cigarettes per day.
2. Smoking cigarettes for more years increases the risk of lung cancer.
3. Smoking more than 20 cigarettes per day for more than 50 years has the highest risk of lung cancer.
564
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The diagram shows the male human reproductive system.
What is X?
514
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510
The diagram shows changes in the ovary.
Which point represents the thickness of the uterus lining when the ovary is at stage 4?
[Graph_1]
503
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588
How can HIV be transmitted?
500
596
577
The diagram shows a specialised cell.
What is the function of this specialised cell?
535
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597
Both parents in a family have a characteristic caused by the dominant allele of a gene. They have two children.
The pedigree diagram of the family is shown.
Which row describes the genotypes of the parents in relation to this gene?
546
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532
The diagram shows some of the stages involved in natural selection in wild rabbits.
Which statement is missing from box Z?
588
563
556
The diagram shows a food web.
What is the principal source of energy input into this food web?
581
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580
The diagram shows a food web.
Which statement is correct?
588
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502
Which process in the water cycle only involves living organisms?
549
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526
Bacteria are useful in ...X... because of their rapid ...Y... rate and their ability to make complex ...Z....
Which row completes the sentence? [Table_1]
527
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An area of forest was destroyed by a forest fire. Eventually the forest regrew. What is likely to happen to the amount of soil erosion and flooding when the forest has regrown?
573
524
535
