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What is a characteristic of all living organisms?
Which term is used to describe a group of living things that can reproduce to produce fertile offspring?
Scientists discover a new species of animal.
It has a segmented body with two pairs of legs on each segment.
To which group of animals does this new species belong?
Which part of a cell makes glucose?
The diagram shows some of the blood vessels and other structures in the human body.
The blood vessels shown are all parts of the same
A photograph shows a plant cell nucleus measuring 2 mm across.
If the magnification of the cell is x500, what is the actual size of the nucleus?
By which process do oxygen and carbon dioxide move between cells and capillaries?
A cylinder of potato tissue was placed in a concentrated salt solution. After soaking for one hour the potato tissue was observed.
How will the potato tissue have changed after soaking for one hour?
Which element is found in proteins but not carbohydrates?
Starch is digested by amylase in the mouth, but it is not digested in the stomach.
What is the reason for this?
Which statement about an enzyme-controlled reaction is correct?
A plant with striped leaves was kept in bright light for six hours
A leaf was taken from the plant and the chlorophyll was removed. The leaf was then tested for starch using iodine solution.
Which diagram shows the result of the test?
The diagram shows a cross-section of a leaf.
The diagram shows part of the human body.
Which statement about organs X and Y is correct?
What are the functions of human incisors and molars?
Which sequence describes the pathway taken by water as it moves through a plant?
A plant shoot is placed in a solution of dye.
The dye moves up the stem.
Under which conditions will the dye move most slowly?
How does blood enter the heart?
The diagram shows a cross-section through a human blood vessel.
Which type of blood vessel does the diagram show?
What is a function of some white blood cells?
The diagrams how the depth and rate of breathing in a person at 12:00 and 13:00
What happens to the person’s breathing between 12:00 and 13:00?
What is the link between muscle contraction, protein synthesis and the maintenance of a constant body temperature?
What are the products of anaerobic respiration in yeast?
The diagram shows some of the organs in the human body.
Which row matches the function to the correct organ?
The diagram shows a reflex arc.
Which labelled part is the effector?
A person’s iris is damaged.
What is the effect of this?
Which hormone is secreted by the pancreas?
The graph shows how smoking different numbers of cigarettes for different lengths of time affects the risk of lung cancer.
Which conclusions are supported by the data in the graph?
1 Smoking more than 20 cigarettes per day always increases the risk of lung cancer more than smoking less than 20 cigarettes per day.
2 Smoking cigarettes for more years increases the risk of lung cancer.
3 Smoking more than 20 cigarettes per day for more than 50 years has the highest risk of lung cancer.
The diagram shows the male human reproductive system.
What is X?
The diagram shows changes in the ovary.
Which point represents the thickness of the uterus lining when the ovary is at stage 4?
How can HIV be transmitted?
The diagram shows a specialised cell.
What is the function of this specialised cell?
Both parents in a family have a characteristic caused by the dominant allele of a gene. They have two children.
The pedigree diagram of the family is shown.
Which row describes the genotypes of the parents in relation to this gene?
The diagram shows some of the stages involved in natural selection in wild rabbits.
Which statement is missing from box Z?
The diagram shows a food web
What is the principal source of energy input into this food web?
The diagram shows a food web.
Which statement is correct?
Which process in the water cycle only involves living organisms?
Bacteria are useful in ……X…… because of their rapid ……Y…… rate and their ability to make complex ……Z…… .
Which row completes the sentence?
A forest fire destroyed an area of forest. Eventually, the forest regrew.
What is likely to happen to the amount of soil erosion and flooding when the forest has regrown?
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