Theory

CH15 - DRUGS

What are the effects of smoking on the gas exchange system?[Table_1]Table 1:mucus in the airwayschance of lung infectionAdecreaseddecreasedBdecreasedi...

2010 Winter

2

Theory

CH15 - DRUGS

Where do the breakdown of drugs and the storage of urine occur? [Table_1]

2010 Winter

1

Theory

CH15 - DRUGS

In which part of the body does the breakdown of drugs occur?A. brainB. heartC. kidneysD. liver

2011 Summer

1

Theory

CH15 - DRUGS

(a) Explain what is meant by the term antibiotic.........................................................................................................

2010 Summer

1

Theory

CH15 - DRUGS

In which organ is alcohol broken down?A. brainB. kidneyC. liverD. stomach

2009 Winter

3

Theory

CH15 - DRUGS

The human immunodeficiency virus (HIV) infects white blood cells. The virus is reproduced inside these white blood cells. (a) Describe what may happe...

2010 Winter

1

Theory

CH15 - DRUGS

(a) Explain what is meant by the term antibiotic.(b) Explain why(i) only a few bacteria grew in dish B compared with dish A,(ii) more bacteria grew in...

2010 Summer

3

Theory

CH15 - DRUGS

Where do the breakdown of drugs and the storage of urine occur?[Table_1]A | breakdown of drugs: kidney | storage of urine: musclesB | breakdown ...

2010 Winter

2

Theory

CH15 - DRUGS

The diagram represents some human organs and their blood vessels. Immediately after taking an alcoholic drink, how would the levels of alcohol comp...

2012 Winter

2

Theory

CH15 - DRUGS

In which organ is alcohol broken down? A. brain B. kidney C. liver D. stomach

2009 Winter

2

Theory

CH11 - GAS EXCHANGE IN HUMANS

(a) Fig. 1.1 is a diagram of the human gas exchange system. (i) Identify the structures labelled A, B and C in Fig. 1.1.A ...............................

2020 Spring

1

Theory

CH9 - TRANSPORT IN ANIMALS

(a) Fig. 2.1 shows the transfer of materials between blood and tissues.(i) Complete Table 2.1 by:• stating the names of the fluids• writing yes if...

2020 Spring

1

Theory

Role of Adrenaline

(a) One of the characteristics of living organisms is sensitivity. Define the term sensitivity. (2) (b) State the names of two sense organs. (1) (c...

2020 Spring

1

Theory

CH7 - HUMAN NUTRITION

(a) Describe the similarities and differences between marasmus and kwashiorkor.similarities .............................................................

2020 Spring

1

Theory

CH16 - REPRODUCTION

(a) Mitosis is a type of nuclear division.Fig. 5.1 is a series of photomicrographs showing a cell dividing by mitosis.(i) State the change that has oc...

2020 Spring

2

Theory

CH21 - HUMAN INFLUENCES ON ECOSYSTEMS

(a) Atlantic cod, Gadus morhua, is a type of fish that is an important resource for commercial fishing.Fig. 6.1 shows the estimated mass of Atlantic c...

2020 Spring

1

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows what happened in an experiment with plant seedlings. Which characteristic of living things made the seedlings grow towards the lig...

2020 Summer

2

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

A rat has the scientific name $Rattus$ $rattus$.What do the two parts of this name refer to?

2020 Summer

2

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows two guard cells.Which label shows the cell wall?

2020 Summer

2

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagrams show different levels of organisation in a plant. Which sequence shows the levels of organisation in order from smallest to largest?

2020 Summer

1