Respiration Flashcards

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1
Q

What is needed for aerobic respiration?

A

Glucose and oxygen

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2
Q

Where does respiration happen?

A

In every cell in your body in the mitochondria

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3
Q

What are the waste products of aerobic respiration?

A

Carbon dioxide and water

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4
Q

What is the process of aerobic respiration?

A

The process of releasing energy from the breakdown of glucose

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5
Q

What is respiration controlled by?

A

Enzymes

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6
Q

What does respiration release?

A

Energy

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7
Q

What is the energy released from respiration used for?

A

To build larger molecules from smaller ones, enable muscle contraction in animals, to maintain a constant body temperature in animals, to build sugars, nitrates and other nutrients into amino acids and then proteins in plants

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8
Q

What is the most efficient way to release energy from glucose?

A

Aerobic respiration

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9
Q

What do investigations involving aerobic respiration usually measure?

A

The amount of carbon dioxide produced

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10
Q

What is used to detect carbon dioxide?

A

Limewater

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11
Q

What happens to limewater if carbon dioxide is present?

A

It turns cloudy

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12
Q

What happens when peas respire?

A

They release energy which heats the surroundings

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13
Q

What kind of respiration is used if there is not enough oxygen present?

A

Anaerobic respiration

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14
Q

What happens if your muscles have been contracting for a long period of time?

A

They become fatigued because of too little oxygen

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15
Q

When is anaerobic respiration used?

A

When there is not enough oxygen present for aerobic respiration

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16
Q

What does ‘anaerobic’ mean?

A

Without oxygen

17
Q

What is the definition of anaerobic respiration?

A

The incomplete breakdown of glucose which produces lactic acid

18
Q

When muscles respire anaerobically what do they build up?

A

An oxygen debt

19
Q

What happens when lactic acids builds up in the muscles?

A

It becomes painful

20
Q

What is an advantage of anaerobic respiration?

A

You can carry on using your muscles for longer

21
Q

How does lactic acid get removed from the muscles?

A

By blood flowing through them

22
Q

Why do you have to keep breathing hard after exercise?

A

To get more oxygen into your blood to repay your oxygen debt

23
Q

What happens when blood passes through your muscles to remove lactic acid?

A

It oxidises the lactic acid to carbon dioxide and water

24
Q

What can a fitter person do faster?

A

Pay off the oxygen debt