MCQ

Body Defence: Physical, Physiological and Cellular

The body has several defence mechanisms to protect against disease.Which defence mechanism is a chemical barrier?

2022 Summer

3

MCQ

Body Defence: Physical, Physiological and Cellular

The body has several methods of avoiding infection by pathogens, including specialised cells, mechanical barriers and chemical barriers. Which row ha...

2022 Summer

2

MCQ

Body Defence: Physical, Physiological and Cellular

What is a chemical barrier to pathogens?

2020 Summer

1

MCQ

Body Defence: Physical, Physiological and Cellular

Which are both chemical barriers to the transmission of pathogens?

2017 Winter

1

MCQ

Body Defence: Physical, Physiological and Cellular

The body's first line of defence can prevent some pathogens from entering the body.Which is a first line of defence?

2018 Winter

1

Theory

Body Defence: Physical, Physiological and Cellular

(a) Fig. 4.1 shows a mosquito feeding on human blood. (i) Mosquitoes can carry transmissible diseases such as malaria. Define the term transm...

2018 Summer

4

Theory

Body Defence: Physical, Physiological and Cellular

(a) Complete the description of the immune system, using the words from the list. Each word may be used once, more than once or not at all.  a...

2022 Summer

2

Theory

Body Defence: Physical, Physiological and Cellular

(a) Eating food contaminated by bacteria can cause illness. This type of illness is called food poisoning. Fig. 3.1 shows the number of cases of foo...

2018 Summer

2

Theory

Body Defence: Physical, Physiological and Cellular

The body has defences against pathogens. (a) (i) Define the term pathogens [1] (ii) State two ways a pathogen can be transmitted.  [2] (iii) ...

2016 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