No questions found
The diagram shows a plant. Which characteristic of living organisms is shown by the plant in the diagram?
548
501
538
Using the binomial system of naming organisms, the name of the lion is *Panthera leo*. Which statement is correct?
600
543
570
The table shows the number of animals collected in a sample from a woodland and the groups to which they belong.
[Table_1]
How many arthropods in total, in this sample, have six or eight legs?
554
533
516
Which features do animal cells share with plant cells? [Table_1]
593
586
559
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
574
546
507
At which level of organisation is a root?
575
581
573
What is an example of diffusion?
554
526
533
Which identifies the chemical elements found in proteins?
[Table_1]
586
546
573
What is the correct definition of the term *enzyme*?
507
569
535
Two sealed test-tubes containing aquatic plants and hydrogencarbonate indicator were set up.
The indicator in the sealed test-tubes shows the concentration of dissolved carbon dioxide present.
[Table_1: Concentration of carbon dioxide]
One of the sealed test-tubes was kept in the light for 24 hours and one of the sealed test-tubes was kept in the dark for 24 hours.
The results are shown in the table.
[Table_2: Test-tube results]
What is the correct explanation of what has taken place?
559
558
508
The diagram shows a leaf as seen in cross-section under the microscope.
What are tissues 1, 2 and 3?
508
579
562
The pie charts show the composition of 100g of four different foods.
Which food provides the most energy?
523
510
585
The diagram shows the teeth of the lower jaw of a human. Which tooth is a premolar?
502
529
545
The diagram shows an experiment kept at room temperature.
What is present in the water surrounding the membrane after 45 minutes?
590
556
503
The diagrams show cross-sections through four roots.
Which root is best adapted for absorbing water from the soil?
578
518
575
The diagram shows a vertical section through a human heart.
What are X and Y?
566
563
538
The diagram shows human blood cells, as seen under a microscope. What is the function of cell X?
533
578
515
Which row shows the approximate percentage of gases in expired air?
[Table_1]
539
584
589
Mammals maintain a constant body temperature.
What process must occur continuously to maintain a constant body temperature?
547
517
596
Which process releases the most energy from one molecule of glucose?
595
531
537
The diagram shows a simple reflex arc.
What is the correct order of events after the knee is tapped?
528
564
529
Which type of cell is found in sense organs?
528
591
566
What is meant by the term \textit{tropism}?
597
581
565
A patient has dye injected into the blood supply to his kidneys. The dye appears in his excretory system as shown.
Which part is blocked?
537
506
524
The diagram shows the effect of four different antibiotics, A, B, C and D, on the growth of bacteria. Which antibiotic are the bacteria most resistant to?
550
516
595
Excess alcohol affects the body.
Which statement explains the risk of driving after consuming excessive alcohol?
544
539
571
To which part of the flower is pollen transferred in pollination?
521
507
538
The table shows some of the stages that happen during labour and birth. What is the correct order? [Table_1]
526
587
501
The table shows the percentage effectiveness of four methods of contraception when used correctly.
[Table_1]
What would be the expected percentage of unplanned pregnancies if the surgical method of contraception was used?
566
575
531
The diagram shows part of a genetic diagram for the inheritance of sex in humans.
parents father mother
gametes P
offspring male female
What are the sex chromosomes in gamete P and the male offspring?
[Table_1]
537
525
569
A mouse with grey hair breeds with a mouse with white hair, producing offspring with genotypes Bb, Bb, bb and bb. (B represents the dominant allele for grey hair, and b represents the recessive allele for white hair.)
Which correctly describes the genotypes of the parents?
536
563
585
The following features were observed in a pair of identical twins.
[Table_1]
Which features show phenotypic variation?
586
578
513
Which statement about selective breeding is correct?
576
511
501
Which diagram shows energy passing along a food chain?
563
512
569
Which organisms remove carbon dioxide from the atmosphere?
550
500
563
Which feature of bacteria makes them especially useful in biotechnology?
514
588
560
Which process makes use of a genetically engineered organism?
500
560
557
What are the possible effects of deforestation? [Table_1]
500
577
587
The bloodworm is an organism that is found in heavily polluted water.
The diagram shows where raw sewage flows into a river.
Where would there be fewest bloodworms?
535
550
564
