Aerobic Respiration (Cambridge O Level Biology)

Aerobic respiration increases during exercise.

State the name of the gas required for aerobic respiration.

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State where aerobic respiration occurs in a cell.

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Anaerobic respiration can occur when exercising vigorously.

State the word equation for anaerobic respiration in muscle cells.

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State one advantage of using aerobic rather than anaerobic respiration in humans.

Aerobic respiration increases during exercise.

Use the words from the list to complete the definition of aerobic respiration.

Each word or phrase may be used once, more than once or not at all.

cells                  carbon dioxide                    DNA                    oxygen

the heart                     the brain                    nutrient 

Aerobic respiration is the chemical reactions in ....................................... that use ....................................... to break down ....................................... molecules to release energy.

Compare aerobic respiration and anaerobic respiration 

Yeast can respire aerobically and anaerobically.

State the balanced chemical equation for aerobic respiration.

When yeast respires anaerobically, ethanol is produced.

Ethanol is a type of sustainable resource that can be made from a wide range of crop plants.

It can be used as a biofuel.

Table 1 summarises some information about crop plants that are used to make biofuel.

Table 1

A country has a mean temperature range of 12 °C to 24 °C. The country has a mean annual rainfall of 1000 mm.

Suggest and explain which crop plant would be the most suitable crop to grow to produce biofuel in the country.

Use the information in Table 1 to support your choice.

Respiration releases energy.

Write the word equation for aerobic respiration.

Fig. 1 shows the average daily energy requirement of different groups of males and females.

Fig. 1

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An eleven-year-old male received only 8000 kJ per day for four months.

Use the data in Fig. 1 to suggest two ways this could affect him.

Use the data in Fig. 1 to make three comparisons between the energy requirements of individuals aged 17 years and adults.