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Which characteristic do all living organisms show?
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The diagram shows some animal cells, as seen under the microscope.
What will be present at X?
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The diagram shows an animal.
Use the key to identify the animal in the diagram.
1. has six jointed legs ......................................... go to 2
has eight jointed legs ........................................ go to 3
2. has antennae longer than its body .................. B Gryllus
has antennae shorter than its body ................. C Musca
3. has stripes on its legs .................................... A Araneus
has no stripes on its legs .................................. D Pisaurina
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The diagram shows a section through a root.
What are the levels of organisation of the labelled structures?
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Which characteristics are correct for both osmosis and diffusion?
[Table_1]
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What is the correct test for protein?
[Table_1]
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The diagram represents an enzyme-controlled reaction. What represents the enzyme?
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Four test-tubes are set up as shown. Which test-tube contains the most carbon dioxide after one hour?
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The diagrams show the structure of four different cells from the leaf of a dicotyledonous plant.
Which cell is a guard cell?
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Which mineral ion is absorbed by plant roots and used in the production of all amino acids?
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What is the pathway taken by water as it travels through a plant?
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Which is the main source of fibre in a human diet?
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The diagram shows a person's teeth. Some of their teeth are missing.
What would the person find difficult?
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What are functions of the hydrochloric acid in gastric juice? [Table_1]
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The diagrams show transverse sections through a root and a leaf. Which correctly identifies the phloem?
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A piece of blue cobalt(II) chloride paper is clipped to the lower surface of a fresh leaf and is then covered with plastic, as shown. After a few minutes, part of the paper turns pink, showing that water is present. Which process carried out by leaves causes the paper to turn pink?
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The diagram shows the outside of a human heart. Which is a coronary artery?
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Which of the blood vessels transporting these substances is an artery?
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Which body defence is a chemical barrier?
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The diagram shows part of the human gas exchange system.
Where does the exchange of gases between air and blood take place?
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Which equation represents anaerobic respiration in humans?
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The diagram shows some organs in the human body. In which part are amino acids broken down to form urea?
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Which is the light sensitive part of the eye?
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Which response occurs when body temperature rises?
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What is meant by the term phototropism?
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Which row shows the effects of excessive alcohol consumption?
[Table_1]
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Which statement applies to sexual reproduction?
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The diagram shows half a flower.
Which structure is the stigma?
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The diagram shows the human female reproductive system.
What is structure X?
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Which is a barrier method of birth control?
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What are the uses of meiosis and mitosis? [Table_1]
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The graph shows the masses of two different types of tomato.
What can be concluded from the graph?
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Large areas of forest are cut down in order to clear the land for other uses. Which effect does this have on the atmosphere?
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The diagram shows part of a food web in a pile of dead leaves.
Which terms describe the organisms in the table? [Table_1]
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The diagram shows part of the water cycle.
What are processes S and T?
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The graph shows the changes in the populations of predator and prey over a period of time. Which point on the graph shows a decrease in predator population?
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Which is an example of genetic engineering?
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Why is yeast used in breadmaking?
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The graph shows the levels of dissolved oxygen and mineral ions in a river. At which point does raw sewage enter the river?
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