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 statements E to L relate to the process of cell division. E is used in the repair of damaged tissues F results in the production of diploid cel...
The diagrams show two types of cell specialised to carry out particular functions. Name each type of cell shown and state the relationship between ...
Respiration in the muscle cells of a human may take place when oxygen is available and when oxygen is not available.
Describe the possible harmful effects of human activity on the ecosystem of a tropical rainforest.
Following sexual intercourse in humans, fertilisation may take place.
The diagram shows the structure of a cell from a leaf of a green plant. [Figure 1.1] What are the numbered parts of the cell?
Which row correctly shows the number of molecules, for each substance used and produced, during photosynthesis?
The diagram shows the human alimentary canal. [Figure 8.1] In which part does protein digestion begin?
Blood flows away from the small intestine in the hepatic portal vein. Where does the blood go next, and what may happen there?
The symptoms of a disease include weakness, fatigue, aching and swollen joints, and swollen and soft gums. Which food is used to treat this disease?
Which diagram shows the position of phloem tissue in a herbaceous, dicotyledonous root? [Figure 11.1]
The diagram represents part of a leaf. [Figure 12.1] Which arrows show translocation and transpiration?
In the process of blood clotting, the ......1...... help to convert ......2...... to ......3...... which forms a clot. Which words complete the des...
The diagram shows a section of capillary. [Figure 14.1] Which arrow represents tissue fluid formation?
Which row shows possible causes of coronary heart disease?
What are the products of anaerobic respiration in yeast?
The diagram shows apparatus used to investigate respiration. [Figure 17.1] Which change will be seen and what is the explanation?
During dialysis, substances such as glucose, mineral salts, urea and water move between the patient’s blood and the dialysis fluid. Which processes...
Which organs in humans are involved in maintaining body temperature?
The diagram shows a section through the brain. [Figure 21.1] Which part is the hypothalamus?
The diagram shows a section through the eye. [Figure 22.1] When the person looks down and focuses on their mobile phone, what is the state of the s...
What is a sign of diabetes mellitus?
The diagram shows the bones of the human arm. [Figure 24.1] Which is the bone labelled X?
For which diseases can antibiotics be used as effective treatments?
Which statement comparing the production of single cell protein and the production of protein in meat is not correct?
Mealybugs are small insects that can feed on crops such as mango and coffee. They damage the crops and reduce the yield and profits for farmers. La...
The diagram shows the carbon cycle. [Figure 30.1] What is process X?
The diagram shows a section of a flower. [Figure 33.1] Where are the male gametes made?
What is not an essential condition for the germination of seeds?
What is an advantage to a baby of breast-feeding compared with bottle feeding?
The diagram shows a calendar for 33 days in February and March. [Figure 36.1] A girl, who has a regular menstrual cycle of 28 days, begins menstrua...
In a species of mouse, fur colour can be black or white. Two black female mice were allowed to mate with the same black male. One female had nine y...
The diagram shows the distribution of a human characteristic, X, in the population. [Figure 39.1] What is the characteristic X?
Which statements about the use of bacteria to produce human insulin are correct? 1 Enzymes are used to cut out the human insulin gene. 2 The human ...
The diagram shows part of a plant cell. Which part controls the entry of substances into the cell?
Which part of a leaf absorbs and uses carbon dioxide from the air?
What are the substrates and end products for amylase and lipase?
What is the main function of the villi in the ileum?
The diagrams show transverse sections of a dicotyledonous root and stem. Which tissues transport sugar?
Which pathway does oxygenated blood follow in the human body?
The graph shows a person's pulse rate over a period of time during which they rest, pedal an exercise bike and then rest again. At which point did ...
The apparatus shown is used to make alcohol by anaerobic respiration. What are P, Q and R?
The diagram shows a dialysis machine. Which substance would not be present in a sample of the dialysis fluid taken from point X?
What describes a reflex action?
A fermenter is used to produce penicillin. Why is continuous stirring necessary during the process of fermentation?
The diagram shows a food web of organisms found in a pond. Which organism is both a herbivore and a carnivore?
The diagram shows the nitrogen cycle. Which stage is carried out by nitrifying bacteria?
The diagram shows a section through a non-endospermic seed. Which structures develop into the adult plant?
Which row describes a cause, a symptom and a treatment for syphilis in males?
The diagram shows the blood group phenotypes of some members of a family. Which member of the F1 generation must be heterozygous with the codominan...