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) (i) State the name of the gas exchange surface in humans. ...........................................................................................

2022 Spring

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

(a) Fig. 2.1 is a photomicrograph showing the fertilisation of one human egg cell. [Image_1: Photomicrograph of fertilisation with label 'sperm']Descr...

2022 Spring

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

(a) A scientist investigated the effect of temperature on the mass of leaves picked from a tea plant, *Camellia sinensis*.• Three samples of leaves ...

2022 Spring

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

(a) Fig. 4.1 is a diagram of Vibrio cholerae, the bacterium that causes cholera. (i) Describe two similarities and two differences between a palisade ...

2022 Spring

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The Arabian oryx and the northern white rhinoceros are both mammals.Fig. 5.1 is a photograph of an Arabian oryx. Fig. 5.2 is a photograph of a norther...

2022 Spring

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

(a) Complete Table 6.1 to show the names, functions and sites of action of the three different digestive enzymes.Table 6.1| name of enzyme | function ...

2022 Spring

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

All living organisms release energy from nutrient molecules within their cells. What is the name of this characteristic?

2022 Summer

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Which diagram shows a flower from a monocotyledon?

2022 Summer

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a cross-section through two guard cells of a leaf. Which labelled structures would also be found in an animal cell?

2022 Summer

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a cross-section through a leaf. Which label shows a tissue?

2022 Summer