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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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What is a characteristic of both insects and arachnids?
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The diagram shows a section through a root.
What are the levels of organisation of the labelled structures?
65
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Which characteristics are correct for both osmosis and diffusion?
70
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Which substances are made by linking together glucose molecules only?
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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 diagram shows a cross-section through a leaf.
What is the cell labelled X?
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The nutrient ions present in four different soils are shown.
Which soil would be best for growing healthy, green plants?
[Table_1]
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By which process does water escape from stomata in the leaves?
70
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Which type of tooth does the diagram show?
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Which statement describes assimilation?
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The diagram shows a cross-section of a plant stem.
What is the function of the tissue labelled V?
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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?
70
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Which chamber of the heart has the most muscular wall?
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Which component of the blood carries the most oxygen?
69
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Which is a function of some white blood cells?
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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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The diagram shows substances moving into and out of a living cell.
Which process is taking place in this cell?
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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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The diagram shows a reflex arc. What is X?
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The diagram shows the skin.
Which labelled area contains fatty tissue?
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The diagram shows a seedling that has been placed in a pot of soil.
Which diagram shows what happens after five days?
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Which disease can be caused by smoking tobacco?
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The diagram shows a spider plant with a daughter spider plant growing from it.
Which statement is correct?
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The diagram shows half a flower.
Which structure is the stigma?
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The diagram shows the human male reproductive system.
What is structure X?
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Which hormone is involved in the development and regulation of male secondary sexual characteristics?
72
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What is produced when a cell undergoes mitosis once?
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The diagram shows four cells. Which cell is produced by meiosis?
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The graph shows the masses of two different types of tomato.
What can be concluded from the graph?
80
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A female guinea pig that was pure-breeding for white fur, mated with a male guinea pig that was pure-breeding for brown fur. All the offspring had brown fur. One of the male offspring mated with a female with white fur. What proportion of white offspring would be expected from this cross?
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The diagram shows a food web.
[Image_1: Food web diagram]
Which two organisms in this web are both carnivores?
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Fungi can act as decomposers feeding on dead organic matter.
Which statement describes their effect on the carbon cycle?
75
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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?
76
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A crop plant has been genetically modified to make it resistant to herbicides. Which is a possible disadvantage of introducing this new crop plant?
71
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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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