No questions found
Which organisms carry out respiration, growth, movement and excretion?
591
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506
The diagram shows an animal whose scientific name is Falco peregrinus. To which species does it belong?
587
552
539
What kind of skin do amphibians have?
546
507
587
The diagram shows a flowering plant.
Use the key to identify the plant.
589
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540
The diagram shows a plant cell. In which labelled part of the cell is sugar made?
512
549
560
Why do some root cells have root hairs?
577
570
598
The diagram shows a section through an alveolus and through a capillary. How does carbon dioxide move from Y to X?
548
536
529
Which part of a plant root hair is partially permeable?
537
527
519
The table shows the results of food tests carried out on a fruit.
[Table_1]
What did the fruit contain?
521
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580
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? [Table_1]
542
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The diagram shows a section through a leaf. What are structures P, Q, R and S? [Table_1]
598
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514
A lack of which dietary component can result in constipation?
561
561
532
A woman requires more calcium in her diet when she is pregnant. Which statement explains why?
536
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565
The diagram shows part of the alimentary canal.
Which row correctly identifies the structures labelled J to M?
530
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554
The diagram shows the pathway of water from the soil through a plant.
soil \(\rightarrow\) X \(\rightarrow\) Y \(\rightarrow\) Z \(\rightarrow\) mesophyll cells
Which cells are represented by X, Y and Z?
559
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527
What will not affect the rate of transpiration?
543
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588
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?
523
526
524
The diagrams show some components of the blood of a mammal. Which component causes the blood to start clotting?
537
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532
What is an indirect method of transmitting disease?
544
557
531
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?
540
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501
Which row describes anaerobic respiration?
[Table_1]
549
548
545
The diagram shows the excretory system.
What is structure X?
524
567
535
What is the correct sequence in a reflex action?
534
550
519
In 1921, Banting and Best extracted a substance from the pancreas of an animal. The substance was injected into children whose blood sugar concentrations were too high. The children’s blood sugar concentrations were returned to normal.
Which substance in the pancreatic extract would return the children’s blood sugar concentrations to normal?
503
525
588
A seed is placed and grown on a rotating disc, as shown.
Which diagram shows the appearance of the seedling shoot after seven days?
528
562
501
Which organ is the site of breakdown of alcohol in the human body?
510
538
501
The following statements give information about the reproduction of different organisms.
1. Daffodil plants produce genetically identical bulbs that grow into a new plant the following year.
2. In summer, female aphids produce genetically identical offspring without fertilisation by a male.
3. Most banana plants are genetically identical because they were produced from one parent plant.
Which statements are examples of asexual reproduction?
577
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553
Which stages in sexual reproduction occur in both flowering plants and human reproduction?
1. Gametes are made by meiosis.
2. Gametes fuse to form a zygote.
3. The male gamete moves to the female gamete.
521
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590
Which part of the female reproductive system produces oestrogen?
563
540
526
Which hormone is responsible for the development of secondary sexual characteristics?
567
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532
A length of DNA codes for a protein.
What is this a definition of?
501
532
548
The diagrams show human male and female reproductive organs.
Where does meiosis take place?
523
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The bar chart shows the heights of pea plants grown from 500 pea seeds.
What variation do the plants show?
500
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531
The picture shows a fox that lives in the desert.
Which adaptation does the fox have for living in the desert?
569
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568
The diagram shows a simple food chain.
Which process releases the energy that is lost at 1, 2 and 3?
519
562
528
Which labelled stage in the water cycle shows precipitation?
554
598
536
What is the name of the structure that separates the left and right ventricles of the heart?
515
547
590
What is a source of air pollution?
549
509
521
Which process does not change the carbon dioxide level in the air?
579
547
517
