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Biology > respiration > Flashcards

respiration Flashcards

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1
Q

What is respiration?

A

-a chemical reaction that occurs in the mitochondria of all living organisms.

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2
Q

What is the purpose of respiration?

A

to release energy

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3
Q

What is the formula for aerobic respiration? (word)

A

oxygen + glucose -> carbon dioxide + water + energy

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4
Q

What is the formula for aerobic respiration? (chemical)

A

C(6)H(12)O(6) + O(2) -> 6CO(2) + 6H(2)O + energy

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5
Q

Where does glucose come from?

A

The digestion of carbohydrates

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6
Q

Where does the oxygen come from?

A

The air which we breathe in

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7
Q

Where does the carbon dioxide released from?

A

breathing out, via gas exchange

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8
Q

Where is water released from?

A

when exhaled

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9
Q

What causes a stitch?

A

anaerobic respiration

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10
Q

When does anaerobic respiration occur?

A

When doing a physical activity and there is a lack of oxygen.

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11
Q

What is the equation for anaerobic respiration?(animals)

A

glucose -> lactic acid + energy

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12
Q

What is the equation for anaerobic respiration? (plants)

A

glucose -> carbon dioxide + ethanol + energy

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13
Q

Is more or less energy released in anaerobic respiration then aerobic respiration?

A

less as there are more bonds broken, leading to more products made however in anaerobic respiration, there are less bonds broken as the glucose is partly broken down

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14
Q

What does a build up of lactic acid cause?

A

muscle fatigue

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15
Q

What is oxygen debt?

A

The extra oxygen needed to destroy the build up of lactic acid after exercise

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16
Q

How do we get the oxygen needed in oxygen debt?

A

We breathe deeper and faster

17
Q

Where does anaerobic respiration take place?

A

the muscles

18
Q

What happens in oxygen debt?

A

The lactic acid is transported from the muscles to the liver and converted back to glucose via the blood. This requires oxygen.

19
Q

Where does anaerobic respiration take place in the industry?

A

It takes place in yeast and is called fermentation. The alcohol that is produced is ethanol and is used in alcoholic drinks

20
Q

What is yeast used for in making bread?

A

The anaerobic respiration that takes place in the yeast causes CO(2) which causes the bread to rise, leading to a higher yield

21
Q

What are the 4 main factors in the industry?

A
  • temp
  • oxygen supply
  • amount of glucose
  • unwanted microorganisms kept out
22
Q

What is recovery time?

A

The time taken for the HR, breathing rate and lactic acid take to get back to normal levels.

23
Q

What can recovery time be used for?

A

Measuring how fit someone is

Biology (6 decks)

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