Aerobic + Anaerobic respiration Flashcards

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1
Q

Def of aerobic respiration

A

Breaking down glucose with oxygen to release energy and producing carbon dioxide and water

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2
Q

Word equation for aerobic respiration

A

glucose + oxygen —> carbon dioxide + water (+ energy)

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3
Q

State where respiration occurs in a cell

A

mitochondria

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4
Q

Describe where and how respiration takes place

A

In mitochondria which are found in cells. Releases carbon dioxide and water with energy

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5
Q

How does glucose get into cells

A
  • It is a carbohydrate found in food
  • Digestion breaks down food into small molecules releasing glucose molecules
  • Absorbed by wall of small intestine into bloodstream
  • Around body in blood then dissolves in plasma
    -Dissolved glucose diffuses into cells for respiration
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6
Q
A
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7
Q

Explain in detail how the reactants of respiration get into cells and what happens to the products in respiration (6 marks)

A
  • Inhaling fills alveoli in your lungs with oxygen
    -Oxygen then diffuses into your bloodstream
  • Oxygen is carried to the cells from the red blood cells
  • Glucose comes in your body from your food
  • Where it is digested and absorbed by the wall of the small intestine
  • Dissolving into the plasma
  • Respiration occurs in mitochondria
  • Release carbon dioxide and water
  • Exhale carbon dioxide
  • Carbon dioxide produced in respiration diffuses into bloodstream
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8
Q

Anaerobic def

A

Releasing energy from the breakdown of glucose without oxygen producing lactic acid

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9
Q

Describe two differences between aerobic respiration and anerobic respiration

A
  1. Anaerobic respiration doesnt use oxygen
  2. Anaerobic respiration produces lactic acid which can cause muscle cramps
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10
Q

State and explain one situation where a mouse would use anaerobic respiration

A
  • Running away from predator
  • Anaerobic respiration because it needs oxygen in its muscles quickly and it occurs when do strenuous activity of sprint
  • Extra energy required for a short period
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11
Q

Why cant mouse repsire anaerobically for long period

A

Build up of lactic acid

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12
Q

When does anaerobic respiration occur

A

Used up all oxygen in body

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13
Q

What does the recovery time mean

A

Length of time to pay back oxygen

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14
Q

What does oxygen do to the lactic acid

A

Break it down

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15
Q

What does the cell have to do when in oxygen debt

A

Create energy from glucose

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16
Q

Which produces less energy anaerobic or aerobic

A

Anaerobic - half

17
Q

Word equation for anaerobic

A

glucose —> lactic acid (+ energy)