Respiration Flashcards

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1
Q

Define aerobic respiration

A

The chemical reaction in cells that use oxygen to break down nutrient molecules to release energy

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2
Q

Equation of aerobic respiration

A

glucose+ oxygen+ –> carbon dioxide+ water + energy

C6H12O6+ 6O2–> 6CO2 +6H2O+ 38 ATP

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3
Q

State the uses of energy in the body of humans

A

Basal metabolism 70%
Metabolizing food 10%
Physical activity 20%

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4
Q

Define anaerobic respiration

A

The chemical reaction in cells that break down nutrients molecules to release a relatively small amount of energy , in the absence of oxygen

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5
Q

Word equation of anaerobic respiration

A

glucose–> lactic acid+ carbon dioxide + energy (2ATP)

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6
Q

Describe the production of lactic acid

A

When muscle cells use energy rapidly
Circulatory system cannot supply enough oxygen
Glucose is converted to energy and lactic acid
Lactic acid builds up
causes: tired muscles and pain

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7
Q

Describe the removal of lactic acid

A

Breath rapid and large volumes of air.
Lactic acid and oxygen go to the liver where it is oxidised

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8
Q

What is the balanced chemical equation for yeast

A

C6H12O6–> 2C2H5OH+ 2CO2

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9
Q

Role of anaerobic respiration:
Bread making

A

Yeast carry out anaerobic respiration
Produce CO2 and ethanol
Makes dough rise
Alcohol evaporates

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10
Q

Role of anaerobic respiration:
Brewing

A

Yeast carry out anaerobic respiration
Produce CO2 and alcohol
Fermentation

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