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

2

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

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram illustrates some of the processes carried out by living organisms. Which characteristic of living organisms is represented by arrow X? ...

2015 Summer

2

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

What is a correct way of naming a species, according to the binomial system? A. Homo sapiens B. Homo Sapiens C. human being D. sapiens

2015 Summer

2

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows four arthropods.[Image_1: Diagram of Pediculus ×20, Anopheles ×10, Dermacentor ×7, Carcinus ×0.5]How many of these arthropods ar...

2015 Summer

2

Theory

CH4 - BIOLOGICAL MOLECULES

The key can be used to distinguish between four different chemical substances. Use the key to identify which substance could be a protein. 1 contain...

2015 Summer

2

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows two guard cells from a leaf.Which labelled part would also be found in liver cells?

2015 Summer

2

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows part of a leaf in cross-section.Structures X and Y are both part of the sameA. cell.B. organ.C. tissue.D. vessel.

2015 Summer

2

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a plant cell. Which features show that it is a plant cell?A It has a cell wall and a vacuole.B It has a nucleus and cytoplasm.C It h...

2015 Summer

2

Theory

CH8 - TRANSPORT IN PLANTS

In a section through a plant, a student found a group of long, microscopic structures. The structures lacked end walls, cytoplasm and nuclei.Which ide...

2015 Summer

2

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a specialised cell cut in half. What does this diagram indicate about the structure of this cell?A The cell has a cell wall.B The ...

2015 Summer

2

Theory

CH6 - PLANT NUTRITION

How do carbon dioxide and oxygen move in and out of a mesophyll cell?A. active transportB. diffusionC. respirationD. transpiration

2015 Summer

1