Theory

CH14 - CO-ORDINATION AND RESPONSE

What is true for a runner, at the end of a marathon race, in a hot climate?A. sweating and vasoconstrictionB. sweating and vasodilationC. vasoconstric...

2009 Summer

Theory

CH14 - CO-ORDINATION AND RESPONSE

When a person is frightened, adrenalin is released by the adrenal glands. What are the effects of the adrenalin?[Table_1]

2009 Summer

Theory

CH14 - CO-ORDINATION AND RESPONSE

Fig. 2.1 shows the blood supply for the liver of a mammal. (a) Blood from organ X is carried to the liver by blood vessel Y. Name (i) organ X, ..........

2009 Summer

Theory

CH14 - CO-ORDINATION AND RESPONSE

After a meal, the concentration of blood glucose increases.What then causes the concentration of blood glucose to return to normal?A. adrenalinB. bloo...

2009 Winter

Theory

CH14 - CO-ORDINATION AND RESPONSE

A bright light suddenly shines into a person’s eyes.What happens?A. The lenses become more concave.B. The lenses become more convex.C. The pupils be...

2009 Winter

Theory

CH14 - CO-ORDINATION AND RESPONSE

A bright light suddenly shines into a person’s eyes.What happens?A. The lenses become more concave.B. The lenses become more convex.C. The pupils be...

2009 Winter

Theory

CH14 - CO-ORDINATION AND RESPONSE

What happens when the body temperature rises above normal? [Table_1] | | blood vessels in the surface of skin | sweat production | |---|-------...

2010 Summer

Theory

CH14 - CO-ORDINATION AND RESPONSE

The diagram shows some of the muscles and bones of the human arm.When muscle X contracts, what happens to the arm and what happens to muscle Y?[Table_...

2010 Summer

Theory

CH14 - CO-ORDINATION AND RESPONSE

The diagram shows a section through part of the human eye. When a person looks at an object which is close to their eye, which of the following takes ...

2010 Summer

Theory

CH14 - CO-ORDINATION AND RESPONSE

What happens when the body temperature rises above normal? [Table_1] | | blood vessels in the surface of skin | sweat production | |---|-----------...

2010 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

A living organism, X, can make its own food, get rid of toxic materials and detect and respond to stimuli. What other four processes must organism X ...

2012 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Which group of organisms has the following features?• three pairs of jointed legs• three-part segmented body• one pair of antennaeA arachnidsB c...

2012 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The table shows some characteristics of four different vertebrates.Which vertebrate is a reptile?[Table_1] Table-1: | | fins | legs | scales | hair ...

2012 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows a fish. Use the key to identify the fish.1. black stripe across the eye ................................. go to 2    ...

2012 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a student's drawing of guard cells. Which label is not correct? [Image_1: Diagram with labels] A. chloroplast B. cytoplasm C. sto...

2012 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a liver cell. Which structure is found in a palisade cell that is not present in this liver cell?A cell membraneB chloroplastC cytop...

2012 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which diagram shows a plant cell? [Image_1: A - Neuron, B - Plant Cell, C - Sperm Cell, D - White Blood Cell]

2012 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which statement about cells or tissues, is correct? A Cells in the respiratory tract are long and thin. B Muscle cells are biconcave. C Red blood c...

2012 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Why do some root cells have root hairs?A for the maintenance of the temperature of the cell sapB to increase the surface area of the cellsC to increas...

2012 Summer

Theory

CH3 - MOVEMENT IN AND OUT OF CELLS

Which structures must be present in a cell for osmosis to take place?A. cell (sap) vacuole and cell wallB. cell wall and cell membraneC. chloroplast a...

2012 Summer