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B3 > Respiration > Flashcards

Respiration Flashcards

1
Q

name a life process?

A

movement

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2
Q

what do plants and animals need to release energy?

A

glucose and oxygen

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3
Q

what is releasing the energy in cells called?

A

respiration

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4
Q

what does aerobic respiration use?

A

oxygen to release energy

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5
Q

what is the word equation for aerobic respiration?

A

glucose + oxygen — carbon dioxide + water

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6
Q

what is energy used for in the body?

A

mammals use the energy to maintain body temperature

energy is also needed to make proteins and contract muscles

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7
Q

what is the balanced symbol equation for respiration?

A

C6H12+6O2 —- 6O2 + 6H20 + energy

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8
Q

what is the rate of respiration in an organism measured by?

A

using a respirometer

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9
Q

what is the equation for respiratory quotient?

A

RQ= carbon dioxide produced

oxygen used

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10
Q

what is energy stored as?

A

ATP molecules

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11
Q

what is ATP used for?

A

as an energy source for many processes inside the cell

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12
Q

what is the process of respiration controlled by?

A

enzymes

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13
Q

what is the rate of respiration dependant on?

A

pH and temperature

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14
Q

what is your metabolic rate?

A

the amount of energy your body needs

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15
Q

how can metabolic rate be estimated?

A

by measuring oxygen uptake

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16
Q

what is your body doing when you are using up more oxygen and glucose?

A

getting rid of waste carbon dioxide produced by cells as quickly as possible

17
Q

how does the body get rid of carbon dioxide?

A

heart rate increases
more oxygen and glucose carried in blood to muscles
muscle cells use energy and produce co2 waste
more carbon dioxide carried to lungs and breathed out

18
Q

explain why metabolic rate can be estimated by measuring oxygen intake?

A

because changes to pH and temperature can affect enzymes

19
Q

what does anaerobic respiration do?

A

releases energy without the use of oxygen and produces lactic acid as waste

20
Q

which respiration releases much less energy per glucose molecule?

A

anaerobic than aerobic

21
Q

what does lactic acid do?

A

stops muscles working temporarily

22
Q

why is more energy released in anaerobic respiration than aerobic respiration?

A

because glucose is only partly broken down

23
Q

why does painting occur after exercise?

A

replaces oxygen to allow aerobic respiration to take place

24
Q

how does davids body recover from hard exercise?

A

david breathes heavily for a few minutes to obtain extra oxygen. The extra oxygen required to remove the lactic acid is called the oxygen debt

B3 (8 decks)

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