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All living organisms release energy from nutrient molecules within their cells.
What is the name of this characteristic?
The scientific names of some animals are listed.
1 Arius felis
2 Felis concolor
3 Felis rufus
4 Macropus rufus
Which animals are in the same genus?
The diagram shows a dichotomous key for arthropods.
The organism shown is an arthropod called an isopod.
Which group does the isopod belong to?
The diagram shows a cross-section through two guard cells of a leaf.
Which labelled structures would also be found in an animal cell?
Which level of organisation is shown by the heart of a mammal?
The image shows a single-celled organism called a Paramecium.
The diagram shows a section through a mesophyll cell of a leaf.
Which part is partially permeable?
What are the smaller basic units of starch and glycogen molecules?
What is the correct definition of an enzyme?
The diagram shows two food tests being carried out on solution X
Which nutrients are present in solution X?
Which chemical is a product of photosynthesis that moves out of a green leaf through its
A student investigated one of the factors that affects photosynthesis.
Part of a leaf was covered with black paper, as shown.
After two days the student tested the leaf for the presence of starch.
Which factor did the student investigate?
Which nutrient is required to prevent scurvy?
Which diagram represents the action of lipase?
The diagram shows the human alimentary canal, with a string marked in metres beside it.
How long is the small intestine?
The image shows a cross-section of part of a leaf.
Which labelled structure is the xylem?
The diagram shows a cross-section of a root.
Three regions of the root are numbered.
Which regions contain cells through which water must pass to reach the xylem?
A student runs 400 metres.
Which effects will this have?
Which process is slower than normal in a person with very few platelets?
The body has several methods of avoiding infection by pathogens, including specialised cells, mechanical barriers and chemical barriers.
Which row has a correct example for each method?
The diagram shows the apparatus used in an investigation of gas exchange in humans.
The person breathes through the central tube five times.
What are the expected results in flasks X and Y?
Which substances are used in aerobic respiration?
The bar chart shows the percentage composition of two gases in four samples of air.
Which sample is expired air?
The diagram shows the excretory system.
Which labels are the ureter and the bladder?
Which conditions will result in the largest volume of urine being produced by the kidneys?
A simple reflex arc consists of four components between a receptor and a response.
Which component is the motor neurone?
Which part of the eye focuses light on the retina?
Which statement about the hormone insulin is correct?
The diagram shows the effect of four different antibiotics, A, B, C and D, on the growth of one
type of bacteria. The bacteria were grown on agar jelly in a Petri dish. When bacteria covered the
whole surface of the agar, paper discs soaked in each antibiotic were placed on top of the agar.
The diagram shows the appearance of the Petri dish 48 hours after the paper discs were added.
Which antibiotic is the most effective treatment for this type of bacteria?
Four processes involved in labour and birth are shown.
1 cutting the umbilical cord
2 contraction of muscles in the uterus wall
3 delivery of the afterbirth
4 dilation of the cervix
5 passage of the baby through the vagina
In which sequence do these events normally occur?
The diagram shows four types of birth control device.
The table shows the percentage of pregnancies in four groups of women. Each group used a
different method of birth control.
Which type of birth control was the most effective?
Which sex chromosomes in the egg cell and in the sperm will produce a female child?
Which statement about selective breeding is correct?
Which process uses the principal source of energy input to biological systems?
What is the name of an organism that obtains its energy from dead organic material?
A herd of red deer live in a forest that contains snakes and a large variety of birds.
Which group of organisms is an example of a population?
Which process makes use of a genetically engineered organism?
The food web shows the feeding relationships in a woodland
If all the chaffinches in the food web die, which effect would this have?
Female moths release chemicals into the air. Male moths detect these chemicals and fly towards
How do the chemicals spread through the air?