Chapter 2- Cell Respiration Flashcards Preview

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Flashcards in Chapter 2- Cell Respiration Deck (12)
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1
Q

In humans what is the source of the organic compounds broken down in cell respiration?

A

The food we eat

2
Q

How is ATP made?

A

A phosphate group is linked to adenosine diphosphate- energy is required for this reaction, it comes from the breakdown of organic compounds

3
Q

What are the main types of cell activities that require energy?

A

1) synthesising large molecules like DNA , RNA and proteins
2) pumping molecules or ions across membranes by active transport
3) moving things around the inside of the cell, such as chromosomes etc

4
Q

What is the advantage of ATP

A

As an energy supply is it immediately available- released simply by splitting ATP and ADP and phosphate

5
Q

When is glucose broken down and what is the yield of ATP?

A

Glucose is broken down in anaerobic respiration without using oxygen😝 yield of ATP is very small but it can be produced quickly

6
Q

What is the 3 useful situations of anaerobic respiration?

A

1) when short but rapid burst of ATP production is needed
2) when oxygen supplies run out in respiration cells
3) in environments that are deficient in oxygen

7
Q

What is the product of anaerobic respiration in humans?

A

Lactic acid then to lactate

8
Q

Anaerobic respiration is used I yeast which produces what?

A

Ethanol and carbon dioxide- yeast converts sugars into ethanol in large fermenters by anaerobic respiration - the ethanol produced by the yeast is purified by distillation and then used as petrol

9
Q

Lactate production in humans when anaerobic respiration is used does what?

A

Maximises the power of muscle contractions

10
Q

What does aerobic respiration require and what does it produce?

A

Requires oxygen and gives a large yield of ATP from glucose

11
Q

What is the formula?

A

Glucose + oxygen –> carbon dioxide + water

12
Q

What is cell respiration?

A

The controlled release of energy from organic compounds to produce ATP

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