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

Theory

CH7 - HUMAN NUTRITION

Fig. 1.1 is a diagram of the alimentary canal and associated organs.(a) State the letter from Fig. 1.1 that identifies the part where:alcohol is broke...

2021 Spring

2

Theory

Heart Rate and Pulse Rate

(a) Different age groups of people, in one area, were asked about their tobacco smoking habits. Fig. 2.1 is a graph that shows the percentage of peop...

2021 Spring

1

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

(a) A scientist found that chuckwallas were also eaten by coyotes.Draw an arrow on Fig. 3.1 to show this information. [1](b) Table 3.1 shows some of t...

2021 Spring

2

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

(a) Fig. 4.1 is a diagram of a plant cell.Identify the parts of the plant cell in Fig. 4.1 by labelling them in the spaces provided, using words from ...

2021 Spring

2

Theory

CH6 - PLANT NUTRITION

(a) A student investigated the effect of the concentration of carbon dioxide on the rate of photosynthesis in an aquatic plant.Table 5.1 shows the res...

2021 Spring

2

Theory

CH12 - RESPIRATION

(a) The box on the left contains the term `Anaerobic respiration`.The boxes on the right show some sentence endings.Match the box on the left to three...

2021 Spring

1

Theory

CH9 - TRANSPORT IN ANIMALS

(a) Fig. 7.1 is a diagram of the circulatory system.[Image_1: Fig. 7.1](i) State the names of the blood vessels labelled A, C and E in Fig. 7.1.A .......

2021 Spring

1

Theory

CH16 - REPRODUCTION

(a) Menstruation is the monthly loss of the lining of the uterus.The age, in years, when the first menstruation occurred was recorded for one area.Tab...

2021 Spring

2

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

What is a characteristic of all living organisms?

2021 Summer

2

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The scientific names of some animals are listed.1. _Camelus dromedarius_2. _Camelus ferus_3. _Equus ferus_4. _Struthio camelus_Which animals are in th...

2021 Summer

1