Theory

CH15 - DRUGS

(a) Fig. 5.1 shows the concentration of alcohol in the blood of a person over a number of hours. During this time the person had several alcoholic dri...

2010 Summer

2

Theory

CH15 - DRUGS

(a) Table 2.1 shows some of the effects of alcohol and heroin.Complete Table 2.1 by writing YES or NO in each of the boxes.One box has been completed ...

2013 Summer

2

Theory

CH15 - DRUGS

(a) Fig. 3.1 shows a piece of apparatus used to measure reaction time. As soon as the bulb lights up, the student being tested presses the switch. The...

2014 Winter

2

Theory

CH15 - DRUGS

Alcohol is a widely used drug. It has serious effects on many parts of the body, including the nervous system.(a) (i) Name the organ in the body where...

2013 Winter

2

Theory

CH15 - DRUGS

(a) (i) Table 6.1 gives a comparison between the bronchiole of a non-smoker and a smoker. Use Fig. 6.1 to complete Table 6.1. An example has been done...

2017 Summer

1

Theory

CH15 - DRUGS

Drugs are substances that alter chemical reactions in the body.(a) The boxes in the middle show the name of the drug.The boxes on the left show the lo...

2017 Winter

2

Theory

CH15 - DRUGS

(a) Use Fig. 8.1 to answer these questions.(i) State the age group and gender that is most likely to smoke cigarettes every day..........................

2017 Summer

2

Theory

CH15 - DRUGS

The boxes on the left contain possible effects of using some drugs.The boxes on the right contain the names of some drugs.Draw straight lines to link ...

2017 Winter

3

Theory

CH15 - DRUGS

Alcohol is a drug.(a) Excessive consumption of alcohol increases the risk of having an accident.State two effects of alcohol on the body that increase...

2017 Winter

2

Theory

CH15 - DRUGS

(a) Drinking excessive alcohol, injecting heroin and smoking tobacco can all do serious harm to the body.Table 3.1 shows some of the risks of using th...

2017 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

2

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

3

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which row matches the cell membrane and cell wall of a palisade cell to their functions? [Table_1]

2016 Summer

7

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

In a plant, what is formed by a group of xylem vessels?

2016 Summer

3

MCQ

CH8 - TRANSPORT IN PLANTS

What are the functions of xylem vessels?[Table_1] showing the functions: absorption, conduction, photosynthesis, support with options A, B, C, D.

2016 Summer

3

MCQ

CH3 - MOVEMENT IN AND OUT OF CELLS

Active transport is the movement of

2016 Summer

4

MCQ

CH3 - MOVEMENT IN AND OUT OF CELLS

The diagram shows an experiment to demonstrate the movement of molecules. After one hour, the water in the beaker turned red.What is the most likely r...

2016 Summer

3

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

6

MCQ

CH5 - ENZYMES

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

2016 Summer

5