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FSS - INTERGRATED SCIENCE > F2 - SEM1 - Living things and air - 7.4 > Flashcards

F2 - SEM1 - Living things and air - 7.4 Flashcards

1
Q

The net gas exchange in plants depends on?

7.4 Gas exchange in plants

A

The relative rate of
photosynthesis and respiration

7.4 Gas exchange in plants

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2
Q

What does it mean if hydrogencarbonate indicator is purple in colour?

7.4 Gas exchange in plants

A

Lower than normal in air

7.4 Gas exchange in plants

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3
Q

What does it mean if hydrogencarbonate indicator is red in colour?

7.4 Gas exchange in plants

A

Normal level in air

7.4 Gas exchange in plants

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4
Q

What does it mean if hydrogencarbonate indicator is yellow in colour?

7.4 Gas exchange in plants

A

Higher than normal level in air

7.4 Gas exchange in plants

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5
Q

Under light conditions, rate of photosynthesis is ____ than rate of respiration

7.4 Gas exchange in plants

A

higher

7.4 Gas exchange in plants

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6
Q

What does it mean by net uptake?

7.4 Gas exchange in plants

A

The amount used is greater than the amount produced

7.4 Gas exchange in plants

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7
Q

What does it meant by net release?

7.4 Gas exchange in plants

A

The amount produced is greater than the amount used

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8
Q

Under light conditions, net uptake of ____ and net release of ____

7.4 Gas exchange in plants

A

Under light conditions, net uptake of carbon dioxide and net release of oxygen

7.4 Gas exchange in plants

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9
Q

Under dark conditions, net uptake of ____ and net release of ____

7.4 Gas exchange in plants

A

Under dark conditions, net uptake of oxygen and net release of carbon dioxide

7.4 Gas exchange in plants

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10
Q

True or False?

Under light conditions, plants carry out photosynthesis only. Under dark conditions, plants carry out respiration only.

7.4 Gas exchange in plants

A

False

Under light condition, plants carry out photosynthesis and respiration

7.4 Gas exchange in plants

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11
Q

Gas exchange in plants is carried out through ____

7.4 Gas exchange in plants

A

stomata

7.4 Gas exchange in plants

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12
Q

True or False?

Stomats are present on leaf epidermis

7.4 Gas exchange in plants

A

True

7.4 Gas exchange in plants

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13
Q

True or False?

Planting trees along the road can help take up carbon dioxide given out by cars.

7.4 Gas exchange in plants

A

True

7.4 Gas exchange in plants

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14
Q

What is the function of sodium hydrogencarbonate solution?

7.4 Gas exchange in plants

A

It breaks down to provide carbon dioxide

7.4 Gas exchange in plants

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FSS - INTERGRATED SCIENCE (35 decks)

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