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Biology > Breathing/Respiration > Flashcards

Breathing/Respiration Flashcards

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1
Q

Steps of EXHALATION…

A 
1️⃣Intercostal muscles relax
2️⃣Moves ribs down and in
3️⃣Diaphragm relaxes 
4️⃣Diaphragm moves up
5️⃣Decreases volume inside the lungs
6️⃣Increases the pressure
7️⃣Air moves out
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2
Q

Steps of INHALATION…

A 
1️⃣Intercostal muscles contract
2️⃣Moves ribs up and out
3️⃣Diaphragm contracts
4️⃣Diaphragm moves down
5️⃣Increase volume inside the lungs
6️⃣Decreases the pressure
7️⃣Air moves in
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3
Q

1 difference between anaerobic and aerobic respiration?

A

Aerobic respiration uses oxygen and anaerobic doesn’t

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4
Q

What are the differences between inhaled and exhaled air?

A

Oxygen levels decreased for your exhaled air, because it has been absorbed into the blood. Carbon dioxide levels increased for your exhaled breaths, your cells making CO2 by respiration.

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5
Q

How are lungs adapted for gas exchange?

A

⭐️Short diffusion distance
⭐️Large surface area
⭐️Large blood supply
⭐️Ventilation

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6
Q

What is the word equation for anaerobic respiration in plants?

A

Glucose ➡️ ethanol + carbon dioxide

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7
Q

What is the word equation for aerobic respiration?

A

Glucose + oxygen ➡️ carbon dioxide + water

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8
Q

Heart rate increases during exercise explain how…

A

You are doing more respiration

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9
Q

How much oxygen is there in the air?

A

21%

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10
Q

How much nitrogen is in the air?

A

79%

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11
Q

How much oxygen is inhaled?

A

21%

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12
Q

How much oxygen is exhaled?

A

17%

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13
Q

How much carbon dioxide is inhaled?

A

A very small amount

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14
Q

How much carbon dioxide is exhaled?

A

3%

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15
Q

How much nitrogen is inhaled?

A

79%

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16
Q

How much nitrogen is exhaled?

A

79%

17
Q

How much water vapour is inhaled?

A

A small amount

18
Q

How much water vapour in exhaled?

A

A large amount

19
Q

Oxygen levels have decreased for exhaled air, why is this?

A

This is because the oxygen has been absorbed into blood for respiration in cells.

20
Q

Carbon dioxide levels have increase for inhaled air, why is this?

A

This is because CO2 has been made in the cells by doing respiration.

21
Q

What happens to the nitrogen levels?

A

They stay the same

22
Q

Why do we need energy?

A

⭐️Movement
⭐️Active transport
⭐️Making larger molecules
➡️Making proteins from amino acids

23
Q

What is respiration?

A

Respiration is the process by which food molecules are broken down to release energy.

24
Q

Energy is released in the form of…

A

ATP

Biology (23 decks)

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