Theory

CH11 - GAS EXCHANGE IN HUMANS

The diagram illustrates changes in air pressure taking place inside the lungs during a complete cycle of breathing. Atmospheric pressure is 101 kPa.Wh...

2011 Summer

2

Theory

CH11 - GAS EXCHANGE IN HUMANS

The graph shows the rate and depth of a person's breathing before exercise. Which graph shows the rate and depth of breathing of the same person immed...

2011 Summer

2

Theory

CH11 - GAS EXCHANGE IN HUMANS

The table shows the percentage composition of three gases in atmospheric air.[Table_1]What is the composition of the air breathed out by a person?[Tab...

2012 Winter

1

Theory

CH11 - GAS EXCHANGE IN HUMANS

In an experiment, three glass bell jars were set up as shown in the diagram.At the end of the experiment, which bell jar has the most oxygen and which...

2009 Summer

2

Theory

CH11 - GAS EXCHANGE IN HUMANS

What are the properties of an efficient gas exchange system, assuming it has a good blood supply? A. large surface and thick walls B. large surface an...

2010 Winter

2

Theory

CH11 - GAS EXCHANGE IN HUMANS

The diagram represents the exchange of gases during breathing and during respiration in the body.What is represented by X and by Y?[Table_1]\(\begin{a...

2009 Summer

1

Theory

CH11 - GAS EXCHANGE IN HUMANS

(a) Define the term \textit{aerobic respiration}.........................................................................................................

2010 Winter

1

Theory

CH11 - GAS EXCHANGE IN HUMANS

The diagram shows someone blowing up a balloon. What percentage of the gas in the balloon is carbon dioxide? A 0.04% B 0.4% C 4.0% D 40%

2010 Summer

2

Theory

CH11 - GAS EXCHANGE IN HUMANS

(a) In the space below write a balanced chemical equation for anaerobic respiration in muscles.......................................... $\rightarrow$...

2010 Winter

2

Theory

CH11 - GAS EXCHANGE IN HUMANS

The diagram illustrates changes in air pressure taking place inside the lungs during a complete cycle of breathing. Atmospheric pressure is 101 kPa. W...

2011 Summer

1

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Worms come to the soil surface after heavy rain.Which characteristic of living organisms does this show?A growthB nutritionC reproductionD sensitivity

2013 Summer

3

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Which animal is \textbf{not} an arthropod?[Image with options A, B, C, D]

2013 Summer

3

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows a sea lion.Which labelled feature shows that this animal is a mammal?

2013 Summer

3

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows an animal found in fresh water. [Image]Use the key to identify the animal.1 body divided into segments ............... go to 2 bo...

2013 Summer

3

Theory

CH8 - TRANSPORT IN PLANTS

Which statement about xylem is correct? A. It carries sucrose. B. It converts light energy to chemical energy. C. It divides actively to help the p...

2013 Summer

4

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a bacterial cell.How is this cell different from a typical animal cell?A. It has a cell membrane.B. It has cytoplasm.C. It has no ch...

2013 Summer

2

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a plant cell.In which labelled part of the cell is sugar made?

2013 Summer

2

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which of these tissues is not part of the organ with which it is paired?[Table_1]tissueorgan containing this tissueAciliatedrootBmuscleintestineCnervo...

2013 Summer

3

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a specialised cell.For which function is the cell adapted?A absorption of waterB contraction of musclesC movement of dust particlesD...

2013 Summer

3

Theory

CH3 - MOVEMENT IN AND OUT OF CELLS

The diagram represents two liquids, separated by a membrane through which osmosis can occur.Key- ○ molecule of water- ◎ molecule of dissolved subs...

2013 Summer

3