Cambridge & Pearson Edexcel Past Paper Questions

The diagram shows a simple apparatus that could be used to produce alcohol. What is the role of the U-shaped tube containing water?

Why does an ecosystem need to be exposed regularly to sunlight?

The diagram shows a food chain. tree → mice → cats → fleas What is the shape of the pyramid of numbers for this food chain?

The diagram shows part of the nitrogen cycle. Which process occurs at X?

Which row shows the malarial parasite and the vector involved in its transmission?

Which plants are most likely to adapt successfully to a climate change in their environment?

The diagram shows a flower cut in half. Which two parts of the flower produce haploid gametes?

The diagram shows some stages in cell division in a fruit fly. Cell X contains 8 chromosomes. How many chromosomes are in cell Y and in cell Z?

What is the path taken by sperm cells during ejaculation from the male reproductive system?

Which row describes a sign, a symptom and a treatment for syphilis in males?

Which statements about genes and chromosomes are correct?

Which feature of bacteria shows discontinuous variation?

Over several hundred years, the milk production of a particular type of farm animal has steadily increased. How has this been achieved?

Which statements about diffusion are correct? 1 Molecules move at random. 2 Molecules move down a concentration gradient. 3 Molecules may move thro...

Which row defines active transport?

Which property of enzymes is explained by the lock and key hypothesis?

The diagram shows the human alimentary canal. In which part does protein digestion begin?

In which blood vessel does the concentration of glucose vary the most?

Which feature of root hairs suggests that they take up ions from the soil by active transport?

The cut shoot of a plant is placed in a beaker containing a solution of blue dye for one hour, as shown. The stem of the shoot is then cut through ...

Why is a rise in pulse rate important for an athlete during a 200 m race?

Which row shows what may cause coronary heart disease?

What lines the walls of alveoli?

Which substances are produced during aerobic respiration?

The diagram represents dialysis in a kidney machine. Each shape represents a molecule found in blood or dialysis fluid. Which shape represents prot...

Which structures does light pass through when it is focused on the retina?

Which row shows what causes adrenaline or insulin to be released, and the effect of this hormone on blood glucose concentration?

A man suffers a head injury and his cerebellum is damaged. What is the result of this?

The diagram shows four bones associated with the forelimb. Which bones form a hinge joint?

An experiment is set up as shown in the diagram, to compare how well different antibiotics work against a species of bacterium. In this experiment,...

The diagram shows processes in the production of cheese. In which process is there a significant reduction in pH?

The diagram shows a cell and some of its features. From where has this cell been taken?

Insects feed on a tree's leaves. The insects are eaten by small birds that are the prey of larger birds. Which pyramid of numbers illustrates this ...

Which row correctly matches a method of controlling malaria with the explanation of how this method works?

The diagram shows a section through a plum fruit. Which structure has a genotype different to the other three?

Which method of birth control gives some protection from syphilis and HIV?

What is essential for natural selection to occur?

Insulin is manufactured commercially using genetic engineering. Which type of organism is used to produce large quantities of insulin in this way?

Spirulina is classified in the group bacteria. Spirulina is green in colour and is able to synthesise its own food.

A potometer is used to measure water uptake by a plant. Fig. 2.1 shows the stem and flower of a plant in a potometer. As water is taken up, the bub...

Fig. 3.1 shows an organ, X, and its associated blood vessels P, Q and R. Organ X is involved in the following processes: • the metabolism of amino ...

Fig. 4.1 shows a Bengal tiger. Fur colour in the Bengal tiger is controlled by a single gene. The dominant allele of the gene results in orange fur...

The statements E to K relate to the process of reproduction. E produces genetically identical offspring F produces more individuals of the same spe...

Section B Answer both questions in this section. 6

Fig. 7.1 shows bacteria growing on the surface of a dish containing nutrient jelly. Paper discs, such as M and N, were soaked in solutions of diffe...

Section C Answer either question 8 or question 9. (a) With reference to named components, describe how the structure of one animal cell (for exampl...

Compare each of the following processes:

(a) Fig. 1.1 shows the front view of a person's chest and abdomen. [Figure 1.1] (b) Fig. 1.2 shows a person about to lift the handle of a bucket ...

Four of the stages associated with human nutrition are: absorption digestion egestion ingestion Fig. 2.1 shows the human alimentary canal. [Figure...

Fig. 3.1 shows flowers from the same species of plant at different stages, D and E, in their development. [Figure 3.1]