Cambridge & Pearson Edexcel Past Paper Questions
Browse 35,704 questions from Cambridge O-Level & A-Level and Pearson Edexcel IGCSE & IAL exams. Click any question to practice.
The diagram shows the external view of a brain. Which part of the brain is concerned with thinking and making decisions? [Figure 22]
In diabetes, glucose appears in the urine. How does insulin prevent this?
What are some effects of using heroin?
Antibiotics, such as penicillin, are produced in fermenters on a large scale. Which substance is not needed for production of penicillin in this way?
Some young plants were put into the soil and grew well for a few weeks. They then began to show signs of disease. Samples of the diseased leaves we...
The graph shows changes in the populations of plant and animal plankton in a lake. [Figure 28] Consider the following statement in relation to the ...
A food chain is shown. grain → insects → small birds → owls → lice What is the pyramid of numbers for this food chain? [Figure 29]
In the carbon cycle, which process returns carbon to a food chain?
Which action will not help to reduce the spread of the malarial vector in the human population?
Which change would lead to an increase in biodiversity in an area?
The diagram shows the chromosomes in a cell. [Figure 33] Which diagram shows the product of one division of the cell by mitosis? [Figure 33 options]
The diagram shows a section through a flower. [Figure 34] Which statement is correct?
The diagram shows a baby about to be born. Which labelled structures are the cervix and uterus? [Figure 35]
A person's basal body temperature is their temperature when they first wake up in the morning. In women, an increase in blood progesterone concentr...
The diagram shows a pair of chromosomes from the same cell. [Figure 37] A gene is found at the point labelled P. In a heterozygous individual, what...
The table shows the variation in foot length in a number of students. [Figure 38] Which row identifies this type of variation and states its cause?
The colour of the fruit of tomato plants is determined by alleles of the same gene. A tomato plant with red fruit was crossed with a tomato plant w...
Diabetes may be treated using insulin from genetic engineering. Where is this insulin produced?
The diagram shows a food web in a pond. kingfisher, small fish, frog, tadpole, water beetle, snail, water plant.
The diagram shows a male human gamete. nucleus. The diagram below shows the male reproductive system and associated organs.
The diagram shows the fruit of a plant.
The diagram shows a human heart and associated blood vessels. F A E D B C
No introductory text, directly to part (a).
The diagram shows a magnified transverse section through a leaf. Name each of J, K, L and M and explain the importance of each in the process of tr...
The diagrams show the bud of an insect-pollinated flower and a magnified transverse section through the same flower bud. The transverse section was...
The diagram shows the human heart. The blood vessel labelled F may become narrowed as shown. [Figure: Human heart with blood vessel F and a magnifi...
The table shows how the thickness of the lens of the eye changes when focussing on an object at different distances from the front of the eye. dis...
The graph shows the effect on crop yield (amount harvested) of using fertilisers that contain nitrogen. [Figure: Graph showing crop yield in kg/hec...
The diagram shows a section through the human body divided into regions P, Q, R and S. [Figure: Human body diagram showing regions P, Q, R, S and i...
The diagram shows a magnified transverse section through a leaf. [Figure: Magnified transverse section through a leaf showing T, U, V, W]
Describe the cause of each of the following: Down's syndrome, sickle cell anaemia.
Explain why most foods eaten by a human must be digested.
The diagram shows a cell from a plant leaf and a cell from an animal's skin. Which part will stain blue-black with iodine solution? [Figure 1.1]
The diagram shows a plant cell after being placed in a solution for an hour. [Figure 2.1] What provides the explanation for the appearance of this ...
The diagram shows some cells in the root of a plant that is absorbing water from the soil. [Figure 3.1] How does the water potential of the cell ma...
Which statement about enzymes is not correct?
The graphs show how two different conditions affect the rate of photosynthesis. [Figure 6.1] Which conditions are being altered in graphs 1 and 2?
A plant has leaves with both green and white areas. One of its leaves is partly covered with aluminium foil which blocks light. [Figure 7.1] The pl...
The diagram shows a section of the wall of the small intestine. [Figure 8.1] Into which structure are most of the lipid components of the diet abso...
The diagram shows the arrangement of human teeth in the lower jaw. [Figure 9.1] Which tooth is an incisor?
Which statement describes the function of the stomach?
In a muscle, which two substances show net movement from the plasma into the tissue fluid?
A patient inhales a drug. Which chamber of the patient's heart would be the first to receive blood containing the drug? [Figure 14.1]
Which table shows vessels carrying blood to and from the heart, liver and lungs? [Table 15.1]
Which statement about anaerobic respiration in humans is correct?
The diagram shows the human gas exchange system. [Figure 17.1] Which label shows the position of the larynx?
The graph shows how the pressure and volume inside the lungs change during one complete breath. [Figure 18.1] At which point are the muscles of the...
The diagram shows the kidneys and their associated structures. [Figure 19.1] Which row identifies P, Q, R and S?
By which mechanism would the body be able to lose most heat on a hot dry day, if the surrounding air temperature is higher than body temperature?
What are the short-term effects of adrenaline on the body? 1 decreased blood sugar concentration 2 decreased heart rate 3 increased blood sugar con...