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

Which characteristic is shown when a person smells a gas in the air?A excretionB movementC respirationD sensitivity

2011 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows four arthropods.[Image_1: Four illustrations labeled Pediculus ×20, Anopheles ×10, Dermacentor ×7, Carcinus ×0.5]How many of the...

2011 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

An organism has dry scales covering its body. To which vertebrate group does it belong? A: amphibian B: fish C: mammal D: reptile

2011 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows an animal. Use the key to identify the animal.1 has legs .......................... go to 2 has no legs ...................... go ...

2011 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows four specialised cells.Which feature is not common to all of these cells?A. cell membraneB. cytoplasmC. diploid number of chromosome...

2011 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a plant cell.Which labelled structures are found in plant cells but not in animal cells?A P and QB Q and RC R and SD S and T

2011 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows another plant cell.Which feature shows that it is a palisade cell?A a large nucleusB a large vacuoleC a thick cell wallD many chloro...

2011 Summer

Theory

CH6 - PLANT NUTRITION

Which structures are adapted for supporting a plant?A. phloem tissuesB. root hair cellsC. stomataD. xylem vessels

2011 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which describes the structure and function of a red blood cell? [Table_1]

2011 Summer

Theory

CH3 - MOVEMENT IN AND OUT OF CELLS

Boiling potatoes destroys their cell membranes. A peeled, boiled potato strip is placed in a concentrated solution of salts.What takes place?[Table_1]...

2011 Summer