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Biology Mine > Respiration and gas exchange > Flashcards

Respiration and gas exchange Flashcards

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1
Q

what is respiration not

A

Breathing in and out

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2
Q

where does respiration occur

A

every cell in the body

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3
Q

what is respiration

A

the process of realising energy from glucose which happens constantly in every living cell

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4
Q

how is energy from respiration released

A

as chemical energy and heat

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5
Q

what are the two types of respiration

A

aerobic

anaerobic

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6
Q

what does aerobic respiration require

A

plenty of oxygen

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7
Q

what is the word and symbol equation for aerobic respiration

A

Glucose + oxygen –> carbon dioxide + water +(energy)

C6H1206 +6CO2 –> 6CO2 + 6H20 +(energy)

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8
Q

which form of respiration doesn’t require oxygen

A

Anerobic (as body cant supply enough energy for intense exercise)

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9
Q

what’s the word equation for Anaerobic respiration

A

glucose –> lactic acid + energy

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10
Q

what is the word equation for anaerobic respiration in plants

A

Glucose –> ethanol + carbon dioxide + energy

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11
Q

How can you measure the rate of respiration

A

in plants respiration gives of heat so a thermometer could be used to measure the temperature of the test

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12
Q

what do plants use to exchange gases

A

Diffusion

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13
Q

name a waste product from photosynthesis

A

O2

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14
Q

name a factor which can alter the net exchange of gases

A

light intensity

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15
Q

at night what do plants do

A

they take in oxygen and produce co2

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16
Q

how have leaves adapted for gas exchange

A

Leaves are broad, so large surface area for diffusion

Thin so gases only have to travel short distances

There are lots of air spaces inside the leaf which allow gases like carbon dioxide and oxygen to move easily between cells

Stomata to let gases diffuse in and out. also used to allow water to escape

17
Q

what does hydrogen-carbonate indicator show

A

changes in co2 concentration

18
Q

where are the lungs located

A

The Thorax

19
Q

what is the Thorax

A

top part of the body

20
Q

what separates two parts of the body

A

diaphragm

21
Q

what is the windpipe called

A

Tracheas

22
Q

what happens when you breath in

A

Intercostal muscles and diaphragm contract

Thorax volume increases

this decreases the pressure drawing air in

23
Q

what happens when you breath out

A

intercostal muscles and diaphragm relax

thorax volume decreases

air is forced out

24
Q

what part of the body carry out gas exchange

A

alveoli

25
Q

what leaves the blood at the Alveoli and what does the blood gain

A

CO2 leaves and oxygen is gained

26
Q 
what is this  
| | | | | | | | | 
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A

cilia

Biology Mine (7 decks)

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