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B2 > B2.6 > Flashcards

B2.6 Flashcards

1
Q

What do enzymes control in cells

A

Chemical reaction

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2
Q

What are the types of respiration

A

Aerobic and anaerobic

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3
Q

What is aerobic respiration

A

Repiration that uses oxygen and glucose to release energy

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4
Q

What organisms use aerobic respiration

A

Plants

Animals

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5
Q

Where does aerobic respiration take place

A

Mostly takes place inside mitochondria

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6
Q

Word equation for aerobic respiration

A

Glucose+ oxygen👉🏾 carbon dioxide + water+ energy

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7
Q

What is energy from aerobic respiration used for in animals

A

Build larger molecules from smaller ones

Muscle contraction

Maintain body temperature in colder settings

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8
Q

What is energy from aerobic respiration used for in plants

A

Build sugars, nitrates and other nutrients into amino acids to make proteins

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9
Q

What happens during exercise

A

The heart rate increase

The rate and depth if breathing increases

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10
Q

What do changes during exercise do to the body

A

Increased blood flow to muscle
Increased supply of sugar and oxygen
Faster rate of removal of C02

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11
Q

Glycogen

A

Muscles store glucose as glycogen

Convert back to glucose for use during exercise

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12
Q

Why during exercise do we use anaerobic respiration

A

Because of insufficient oxygen reaching muscles

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13
Q

What is anaerobic respiration

A

Incomplete breakdown of glucose and produces lactic acid

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14
Q

Word equation of anaerobic respiration

A

Glucose 👉🏾energy+ lactic acid

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15
Q

Why is there more energy released in aerobic than anaerobic respiration

A

Anaerobic respiration is the incomplete breakdown of glucose and oxygen.

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16
Q

What does anaerobic respiration result in

A

Oxygen debt

17
Q

What is oxygen debt

A

The amount of oxygen needed to oxidise the lactic acid to carbon dioxide and water

18
Q

What happens after long periods of vigorous exercise

A

Muscles become fatigued and contracts inefficiently

19
Q

What is muscle fatigue caused by

A

Lactic acid build up

20
Q

What removes lactic acid

A

Oxygen filled blood flowing through the muscles

21
Q

Respiration

A

Process of releasing energy from the breakdown of glucose

22
Q

Where does respiration happen

A

In every cell

23
Q

Why is a fit person recovery time shorter than an unfit person

A

Fit person has a bigger heart so more oxygen filled blood going to muscles

24
Q

Why do we have an increased heart rate when we exercise

A

Insufficient supply of oxygen
Breathe faster
More oxygen come in
For Aerobic respiration

25
Q

Why does our heart rate increase when we exercise

A

More oxygenated blood needed

To complete the breakdown of glucose

26
Q

Why do we have flushed red skin when we exercise

A

Need to release excess heat
Blood vessels dilate
Bigger surface area to escape

27
Q

Why do we sweat when we exercise

A

Cool body down
Keep body temperature at constant 37 degrees
Enzymes dont denature

B2 (9 decks)

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