No questions found
All living organisms release energy from nutrient molecules within their cells.
What is the name of this characteristic?
592
567
572
The photographs show two different rats.
Rattus norvegicus
Rattus rattus
Which statement about the rats is correct?
570
589
565
The diagram shows an arthropod.
Which group of arthropods does it belong to?
506
582
517
Two types of cell, one animal and one plant, were examined using a light microscope. Which row shows the correct combination of cellular features that would be observed in the cells? [Table_1]
539
510
595
The diagram shows part of a leaf in cross-section.
Structures X and Y are both part of the same
505
576
597
A photograph shows a plant cell nucleus measuring 2 mm across.
If the magnification of the cell is \times 500, what is the actual size of the nucleus?
551
583
556
How do carbon dioxide and oxygen move into and out of a mesophyll cell?
591
504
573
The diagram shows apparatus used to investigate osmosis.
The volumes of solutions A, B, C, and D were the same at the start of the investigation.
After one hour, the solutions had moved up the glass tubes.
Which solution was the most concentrated at the start of the investigation?
509
575
514
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?
518
547
512
The apparatus shown is used for an experiment on starch digestion. Which test-tube contains the most sugar after 20 minutes?
564
530
537
An experiment was carried out using the apparatus shown.
The carbon dioxide content of the water in each test-tube was measured at the start and again three hours later.
In which test-tube would there be a decrease in carbon dioxide content?
569
522
579
The diagram shows a cross-section of a leaf.
Which is the xylem?
580
580
538
Which row shows an enzyme with the correct site of production and products?
[Table_1]
597
588
530
The diagram shows a plant cell.
What type of plant cell is this?
526
524
596
The diagram shows two shoots at the start of an experiment on transpiration.
What are the likely readings on the spring balances after three days?
528
596
560
The diagram shows a circulatory system.
Which vessels carry oxygenated blood?
518
532
568
Some organisms cause transmissible diseases.
What is defined as a disease-causing organism?
510
505
574
The graph shows changes in the volume of air in the lungs of a person at rest, over a period of 30 seconds.
Which graph shows changes in the volume of air in the lungs of the same person immediately after they have done five minutes of vigorous exercise?
594
508
514
As we breathe out, ......1...... is ......2...... through the lungs.
Which words correctly complete gaps 1 and 2?
514
600
581
A person carries out vigorous exercise without drinking any water.
What would happen to the concentration and volume of the person's urine immediately after exercise?
[Table_1]
519
525
502
The diagram shows a reflex arc.
Which label points to the sensory neurone?
562
595
546
What does the central nervous system consist of?
541
589
587
The diagram shows parts of a flower. Which structure represents the site of fertilisation?
556
574
521
The diagram shows the female reproductive system.
Where does implantation normally occur?
558
513
543
Which precautions could help to prevent the spread of AIDS?
1 avoiding the mixing of blood
2 using a femidom
3 using the contraceptive pill
4 using a condom
522
583
577
The diagram shows a timeline of a woman's menstrual cycle, which lasts for 28 days.
On which days of the menstrual cycle is a woman most likely to become pregnant?
586
514
544
What is the transmission of genetic information from generation to generation known as?
588
549
537
The diagram shows the chromosomes in one human cell.
What can be concluded from the chromosomes in this cell?
578
515
525
The allele for detached earlobes is dominant to the allele for attached earlobes.
Two parents are heterozygous for detached earlobes.
What is the probability of their first child having attached earlobes?
559
554
597
Which is an example of discontinuous variation?
588
528
515
Farmers have bred Holstein-Friesian cattle to produce more milk than older breeds of cattle.
Which process was used to produce these cattle?
505
511
522
The diagram shows a food web.
Which row shows a food chain in this food web?
573
598
531
The diagram shows part of the carbon cycle.
Which arrow represents photosynthesis?
570
586
537
The population of rabbits in a woodland halves over a ten year period. Rabbits are herbivores.
What could have caused this change?
589
500
572
The production of ethanol for biofuels involves two stages.
Firstly, starch is converted to glucose by ......1...... . Secondly, glucose is converted to ethanol by ......2...... during ......3...... .
Which row correctly completes gaps 1, 2 and 3?
579
584
575
Scientists have produced yellow rice called Golden Rice. Golden Rice has been produced by the insertion of genes into rice plants.
What is involved in the production of Golden Rice?
546
511
578
What is a negative impact on the environment caused by deforestation?
562
558
504
