Cambridge & Pearson Edexcel Past Paper Questions

Food supplements are substances that are often added to a person's diet. These supplements may be in the form of a tablet. The diagram shows the la...

The diagram shows the structure of a type of bacterium and details of the response of the bacterium to light. [Figure 2.1: Diagram showing the stru...

The diagram shows the internal structure of a seed from a pea plant. [Figure 3.1: Internal structure of a seed from a pea plant with parts C, D, E,...

The photograph shows a species of tree frog. [Figure 4.1: A species of tree frog.] Each tree frog of this species is either grey or green in colour...

The diagram shows the carbon cycle. [Figure 5.1: Diagram showing the carbon cycle with interconnected boxes for fossil fuels, carbon dioxide in the...

The diagram shows the internal structure of a human heart viewed from the front and its associated blood vessels. [Figure 6.1: Internal structure o...

The nervous system coordinates body functions.

Name and describe each process that must take place in order to remove molecules of carbon dioxide from the blood of a person to the air in the atm...

Describe the pathway of water molecules from the soil, through a plant and into the atmosphere.

Which structure is present in a liver cell and in a leaf cell?

By which process does water vapour pass out of a leaf?

A student takes a potato and cuts three pieces from it. Each piece is 5cm × 0.5 cm × 0.5 cm. He places the three potato pieces into three different...

The diagram shows a transverse section through a leaf. [Figure 5.1]. What are the functions of the parts labelled 1, 2, 3 and 4?

The diagram shows a green plant photosynthesising under a glass jar. This was used as a control experiment in a laboratory investigation. [Figure 6...

The graph shows the rate of photosynthesis in a plant in full sunlight at two different temperatures and different concentrations of carbon dioxide...

Which organ produces an acid which kills the bacteria in ingested food?

A patient has her gall bladder surgically removed. How will this affect the functioning of her body?

Four of the organs of the alimentary canal are listed. J colon K duodenum L oesophagus M stomach Which sequence shows the order in which food passe...

The photomicrograph shows part of a section through a root. [Figure 12.1]. The contents of Y are tested with Benedict's solution and with iodine so...

Which blood vessels carry blood to the liver?

Which blood vessels contain valves? key ✓ = contains valves x = does not contain valves

Which chamber of the heart would be the first to receive nicotine absorbed into the blood in the lungs of a cigarette smoker?

Which word equation represents aerobic respiration?

The graph shows changes in the volume of a person's lungs over a period of two minutes. [Figure 18.1]. What could cause the change in the pattern o...

The diagram shows a kidney and blood vessels associated with it. [Figure 19.1]. Which statements are correct? 1 Vessel X contains more urea than ve...

Which of these statements describes control by negative feedback?

Which statements describe the pupil reflex in bright light? 1 ciliary muscles contract 2 ciliary muscles relax 3 circular iris muscles contract 4 c...

Which chemical produced by the body alters the activity of a target organ and is destroyed by the liver?

The diagram shows a section through the human brain. [Figure 23.1]. Which labelled part contains the temperature regulation centre?

Which statements about the elbow joint are correct? 1 When the biceps muscle contracts, the elbow is bent. 2 When the triceps muscle relaxes, the e...

What are the effects of heroin? key ✓ = yes x = no

Which process, brought about by microorganisms, does not depend on anaerobic respiration?

The diagram shows the equipment used in the industrial production of penicillin. [Figure 27.1]. What is the purpose of the structure labelled X?

The flow of energy in ecosystems is non-cyclical. What is the main reason for this?

The diagram shows a food chain. grasses → zebras → lions → fleas Which pyramid of numbers would represent this food chain?

The diagram shows parts of the nitrogen cycle. [Figure 30.1]. Which arrow represents the action of the root nodule bacteria of leguminous plants?

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

Areas of tropical rainforests are often cut down and cleared. After cutting down the trees, the areas are normally burnt. What are the effects of t...

The diagram shows a section of a seed. [Figure 33.1]. What are the numbered parts?

Which processes involve parts of the carpel of a flower?

What identifies a cause, a symptom and a treatment for syphilis in humans?

The diagram shows the female reproductive system. [Figure 36.1]. In which parts are the eggs and the zygote formed?

Natural selection plays a role in evolution. What describes features of natural selection that can affect evolution?

In guinea-pigs, the allele for black fur (B) is dominant to the allele for brown fur (b). A breeder can sell a brown guinea-pig for more money than...

The inheritance of the ABO blood groups in humans is controlled by three alleles (Iᴬ, Iᴮ and I⁰), only two of which can be present in one individua...

Starting with the smallest, and ending with the largest, what is the correct sequence of these parts of an organism?

Which movement of a substance in plants is an energy-consuming process?

The diagram shows the movement of water through part of a leaf. [Figure 3.1] Which processes are involved in the movement of water at these stages?

Which substance is an enzyme?

What is the effect on plants of a lack of magnesium ions?