Theory

CH11 - GAS EXCHANGE IN HUMANS

Gaseous exchange takes place while air flows in and out of the lungs.(a) State three ways in which inspired air is different from expired air.1. ........

2009 Winter

2

Theory

CH11 - GAS EXCHANGE IN HUMANS

Table 4.1 shows the percentage of each of the gases present in the atmosphere and in expired air.[Table_1](a) Identify gas X.............................

2012 Winter

2

Theory

CH11 - GAS EXCHANGE IN HUMANS

Table 4.1 shows the percentage of each of the gases present in the atmosphere and in expired air.\[ \text{Table 4.1} \]\[ \begin{array}{|c|c|c|} \hlin...

2012 Winter

1

Theory

CH11 - GAS EXCHANGE IN HUMANS

Fig. 2.1 shows a section through the human chest (thorax).(a) Name the structures labelled M, N and O.M .................................................

2011 Winter

2

Theory

CH11 - GAS EXCHANGE IN HUMANS

(a) Name the structures labelled M, N and O. M .........................................................................................................

2011 Winter

1

Theory

CH11 - GAS EXCHANGE IN HUMANS

(a) The air which is inhaled is different from that which is exhaled.Complete the following sentences about these differences.(i) Inhaled air has more...

2010 Summer

3

Theory

CH11 - GAS EXCHANGE IN HUMANS

Inspired air has a different composition to expired air.Complete Table 2.1 to show how inspired air is different from expired air.Table 2.1| substance...

2013 Winter

1

Theory

CH11 - GAS EXCHANGE IN HUMANS

(a) Complete the word equation for aerobic respiration.glucose + oxygen ⟶ ...................... + ...................... + energy(b) The rate of me...

2013 Summer

2

Theory

CH11 - GAS EXCHANGE IN HUMANS

(a) On Fig. 3.1 use label lines to identify:a bronchiole;the larynx;the trachea.(b) Fig. 3.2 shows:a group of alveoli and the capillaries surrounding ...

2015 Summer

1

Theory

CH11 - GAS EXCHANGE IN HUMANS

(a) Fig. 5.1 shows the human breathing system.Name the structures labelled J, K, L and M.Write your answers on Fig. 5.1. [4](b) Fig. 5.2 shows four se...

2016 Winter

2

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Which characteristic is shown when a person smells a gas in the air?

2011 Summer

2

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows four arthropods. How many of these arthropods are insects?

2011 Summer

2

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

An organism has dry scales covering its body.To which vertebrate group does it belong?

2011 Summer

3

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows an animal. Use the key to identify the animal.1 has legs ...................................... go to 2 has no legs .................

2011 Summer

4

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows four specialised cells. Which feature is not common to all of these cells?

2011 Summer

1

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a plant cell.Which labelled structures are found in plant cells but not in animal cells?

2011 Summer

5

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows another plant cell. Which feature shows that it is a palisade cell?

2011 Summer

1

MCQ

CH6 - PLANT NUTRITION

Which structures are adapted for supporting a plant?

2011 Summer

2

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which describes the structure and function of a red blood cell? [Table_1]

2011 Summer

2

MCQ

CH3 - MOVEMENT IN AND OUT OF CELLS

Boiling potatoes destroys their cell membranes. A peeled, boiled potato strip is placed in a concentrated solution of salts. What takes place?

2011 Summer

1