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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.

O-LevelBiologyHuman NutritionOct/Nov 2020

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?

O-LevelBiologyTransport in PlantsOct/Nov 2020

Which diagram shows the position of phloem tissue in a herbaceous, dicotyledonous root? [Figure 11.1]

O-LevelBiologyTransport in PlantsOct/Nov 2020

The diagram represents part of a leaf. [Figure 12.1] Which arrows show translocation and transpiration?

O-LevelBiologyTransport in HumansOct/Nov 2020

In the process of blood clotting, the ......1...... help to convert ......2...... to ......3...... which forms a clot. Which words complete the des...

O-LevelBiologyTransport in HumansOct/Nov 2020

The diagram shows a section of capillary. [Figure 14.1] Which arrow represents tissue fluid formation?

O-LevelBiologyTransport in HumansOct/Nov 2020

Which row shows possible causes of coronary heart disease?

O-LevelBiologyRespirationOct/Nov 2020

What are the products of anaerobic respiration in yeast?

O-LevelBiologyRespirationOct/Nov 2020

The diagram shows apparatus used to investigate respiration. [Figure 17.1] Which change will be seen and what is the explanation?

O-LevelBiologyTransport in HumansOct/Nov 2020

During dialysis, substances such as glucose, mineral salts, urea and water move between the patient’s blood and the dialysis fluid. Which processes...

O-LevelBiologyCoordination & ResponseOct/Nov 2020

Which organs in humans are involved in maintaining body temperature?

O-LevelBiologyCoordination & ResponseOct/Nov 2020

The diagram shows a section through the brain. [Figure 21.1] Which part is the hypothalamus?

O-LevelBiologyCoordination & ResponseOct/Nov 2020

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...

O-LevelBiologyCoordination & ResponseOct/Nov 2020

What is a sign of diabetes mellitus?

O-LevelBiologyCoordination & ResponseOct/Nov 2020

The diagram shows the bones of the human arm. [Figure 24.1] Which is the bone labelled X?

O-LevelBiologyEcology & EnvironmentOct/Nov 2020

For which diseases can antibiotics be used as effective treatments?

O-LevelBiologyEcology & EnvironmentOct/Nov 2020

Which statement comparing the production of single cell protein and the production of protein in meat is not correct?

O-LevelBiologyEcology & EnvironmentOct/Nov 2020

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...

O-LevelBiologyEcology & EnvironmentOct/Nov 2020

The diagram shows the carbon cycle. [Figure 30.1] What is process X?

O-LevelBiologyGenetics & VariationOct/Nov 2020

The diagram shows a section of a flower. [Figure 33.1] Where are the male gametes made?

O-LevelBiologyGenetics & VariationOct/Nov 2020

What is not an essential condition for the germination of seeds?

O-LevelBiologyTransport in HumansOct/Nov 2020

What is an advantage to a baby of breast-feeding compared with bottle feeding?

O-LevelBiologyCoordination & ResponseOct/Nov 2020

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...

O-LevelBiologyGenetics & VariationOct/Nov 2020

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...

O-LevelBiologyGenetics & VariationOct/Nov 2020

The diagram shows the distribution of a human characteristic, X, in the population. [Figure 39.1] What is the characteristic X?

O-LevelBiologyGenetics & VariationOct/Nov 2020

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 ...

O-LevelBiologyCell BiologyOct/Nov 2020

The diagram shows part of a plant cell. Which part controls the entry of substances into the cell?

O-LevelBiologyPlant NutritionOct/Nov 2020

Which part of a leaf absorbs and uses carbon dioxide from the air?

O-LevelBiologyEnzymesOct/Nov 2020

What are the substrates and end products for amylase and lipase?

O-LevelBiologyHuman NutritionOct/Nov 2020

What is the main function of the villi in the ileum?

O-LevelBiologyTransport in PlantsOct/Nov 2020

The diagrams show transverse sections of a dicotyledonous root and stem. Which tissues transport sugar?

O-LevelBiologyTransport in HumansOct/Nov 2020

Which pathway does oxygenated blood follow in the human body?

O-LevelBiologyTransport in HumansOct/Nov 2020

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 ...

O-LevelBiologyRespirationOct/Nov 2020

The apparatus shown is used to make alcohol by anaerobic respiration. What are P, Q and R?

O-LevelBiologyTransport in HumansOct/Nov 2020

The diagram shows a dialysis machine. Which substance would not be present in a sample of the dialysis fluid taken from point X?

O-LevelBiologyCoordination & ResponseOct/Nov 2020

What describes a reflex action?

O-LevelBiologyEcology & EnvironmentOct/Nov 2020

A fermenter is used to produce penicillin. Why is continuous stirring necessary during the process of fermentation?

O-LevelBiologyEcology & EnvironmentOct/Nov 2020

The diagram shows a food web of organisms found in a pond. Which organism is both a herbivore and a carnivore?

O-LevelBiologyEcology & EnvironmentOct/Nov 2020

The diagram shows the nitrogen cycle. Which stage is carried out by nitrifying bacteria?

O-LevelBiologyGenetics & VariationOct/Nov 2020

The diagram shows a section through a non-endospermic seed. Which structures develop into the adult plant?

O-LevelBiologyCoordination & ResponseOct/Nov 2020

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

O-LevelBiologyGenetics & VariationOct/Nov 2020

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...

O-LevelBiologyGenetics & VariationOct/Nov 2020

Which human characteristic shows discontinuous variation?

O-LevelBiologyGenetics & VariationOct/Nov 2020

A farmer wants to produce extra-large, sweet oranges, by selective breeding. Using information from the table, which plant types should the farmer ...

O-LevelBiologyHuman NutritionOct/Nov 2020

The diagram represents what the human alimentary canal would look like if it was removed from a person and straightened out. Gastric (stomach) by-p...

O-LevelBiologyEcology & EnvironmentOct/Nov 2020

Corals are a collection of small animals living together in the sea. Their skeletons produce coral reefs. The cells of these animals contain micros...

O-LevelBiologyEcology & EnvironmentOct/Nov 2020

Atmospheric air contains several gases.

O-LevelBiologyRespirationOct/Nov 2020

The diagram shows two identical cigarettes before they have been smoked. In one of them, the paper round the filter has been torn away to expose th...

O-LevelBiologyCell BiologyOct/Nov 2020

The diagram represents osmosis taking place between two sucrose solutions of different concentrations.

O-LevelBiologyTransport in HumansOct/Nov 2020

State the functions of the aorta and the vena cava and describe how each is adapted for its functions.

O-LevelBiologyEcology & EnvironmentOct/Nov 2020

Explain how energy originally supplied by the Sun is eventually used to power the muscles of a lion when it runs.

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