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

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

(a) Identify the structure in the cell that contains the genetic material.Label this structure on Fig. 1.1 by stating its name in the space provided a...

2022 Spring

2

Theory

CH16 - REPRODUCTION

(a) Fig. 2.1 is a diagram of the male reproductive system in humans. The boxes on the left show the letters in Fig. 2.1 that identify parts of the mal...

2022 Spring

3

Theory

CH9 - TRANSPORT IN ANIMALS

(a) Fig. 3.1 is a diagram of a section through a human heart. (i) Draw the letter X on Fig. 3.1 to show the position of the septum. [1](ii) State the ...

2022 Spring

3

Theory

CH12 - RESPIRATION

(a) A student investigated aerobic respiration in an arthropod.Fig. 4.1 shows the apparatus the student used.The potassium hydroxide solution removed ...

2022 Spring

4

Theory

CH6 - PLANT NUTRITION

(a) Fig. 5.1 is a drawing of part of a cross-section of a leaf. (i) Complete Table 5.1 by stating the names of the parts labelled in Fig. 5.1.Table 5....

2022 Spring

2

Theory

CH5 - ENZYMES

(a) A researcher investigated the effect of temperature on two different biological washing powders, A and B. Two identical pieces of clothing were s...

2022 Spring

1

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

(a) Scientists recorded the percentage of endangered species in each of the five groups of vertebrates, in 2000 and 2011. Fig. 7.1 shows the results....

2022 Spring

2

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

All living organisms release energy from nutrient molecules within their cells. What is the name of this characteristic?

2022 Summer

1

MCQ

Biological Classification System and Evolutionary Relationships

The horse, Equus ferus, and the donkey, Equus asinus, are able to interbreed. The offspring they produce is called a mule. Which statement is correct...

2022 Summer

2

MCQ

Animal Kingdom - Arthropods and Vertebrates

The diagram shows an organism. Which type of arthropod is this organism?

2022 Summer

4