Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

Fig. 2.1 shows part of the nitrogen cycle.(a) Name the processes A and B shown in Fig. 2.1.A ............................................................

2011 Summer

2

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

The diagram shows a food web.Which of the following is a food chain in this web?A. grass → rabbits → eagleB. grass → voles → eagleC. rabbit fl...

2011 Summer

3

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

The diagram shows part of the carbon cycle.[Image]Which process is taking place at X?A combustionB decompositionC photosynthesisD respiration

2011 Summer

4

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

The diagram shows part of the water cycle.Which arrow represents condensation?

2011 Summer

3

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

Some bacteria were grown in a nutrient solution over a period of two weeks. The graph shows how the population of bacteria changed during this time.Wh...

2011 Summer

2

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

In a particular habitat, hyaenas eat antelopes and grass is eaten by antelopes.What is the source of energy for the grass?A antelopesB carbon dioxid...

2011 Summer

2

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

Which process forms part of both the carbon and water cycles?A condensationB fossilisationC photosynthesisD transpiration

2012 Winter

2

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

The diagram shows a food chain. mahogany tree \rightarrow caterpillar \rightarrow small bird \rightarrow owl In this food chain, which population ha...

2012 Winter

3

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

The diagram shows a food chain.A disease reduced the number of consumer 2.What effect would this be likely to have on the numbers of consumer 1 and co...

2009 Summer

2

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

The diagram shows a food web near a sea shore. Which animals have the most varied food, as shown in this food web?A crabsB limpetsC lobstersD seagulls

2012 Winter

3

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Some yeast, sugar and water are mixed in a test-tube. The diagrams show the test-tube at the start and after one hour. Which process causes this chan...

2016 Summer

4

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Which name is given to a group of individuals that can reproduce to produce fertile offspring?

2016 Summer

3

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Use the key to identify the animal shown in the diagram.

2016 Summer

4

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which organelles are present in large numbers in cells that produce insulin?

2016 Summer

3

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The actual thickness of the leaf shown in the diagram is 2000 \mu m, but its thickness in the diagram is 50 mm. What is the magnification of the diag...

2016 Summer

3

MCQ

CH3 - MOVEMENT IN AND OUT OF CELLS

The diagram shows an experiment on osmosis. Which arrow shows the direction of the net movement of water at the start of the experiment?

2016 Summer

3

MCQ

CH3 - MOVEMENT IN AND OUT OF CELLS

Active transport is the movement of

2016 Summer

3

MCQ

CH4 - BIOLOGICAL MOLECULES

When bases pair up in the formation of DNA, what is one of the pairings? [Options provided]

2016 Summer

2

MCQ

CH4 - BIOLOGICAL MOLECULES

Small molecules are used as the basic units in the synthesis of large food molecules. Which statement is correct?

2016 Summer

3

MCQ

CH5 - ENZYMES

Which graph shows the effect of temperature on the activity of an enzyme?

2016 Summer

4