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Biology Unit 1 > Chapter 2 Plants > Flashcards

Chapter 2 Plants Flashcards

1
Q

How to destarch a plant

A

Leave in a cupboard for 48 hours

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2
Q

steps to test for starch

A

Boil in water
Boil in Ethanol
Dip in hot water
Add iodine

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3
Q

Photosynthesis chemical equation

A

Light
6CO2 + 6H2O ====> C6 H2 O6 +6O2
Chlorophyll

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4
Q

Photosynthesis word equation

A

Light
Carbondioxide+water => Glucose + Oxygen
Chlorophyll

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5
Q

Positive Starch test

A

Turns from Yellow toBlue/Black

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6
Q

Factors which effect Photosynthesis

A

CO2 concentration
Light Intensity
Tempreature

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7
Q

Respiration equation

A

Glucose + Oxygen => Carbon dioxide + water

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8
Q

Ways in which maximum growth is achieved in a greenhouse

A

Paraffin heaters produce CO2
Artificial lights
Water sprinklers
Fertilisers

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9
Q

Hydrogen Carbonate indicator

A

Red in Normal
Yellow in increased CO2
Purple in decreased CO2

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10
Q

Boiling leaf in water

A

To kill it

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11
Q

Boiling leaf in Ethanol

A

Removes Chlorophyll

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12
Q

Dipping in hot water

A

Soften the leaf

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13
Q

Adding iodine

A

Indicates presence of starch

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14
Q

Measuring photosynthesis

A

Counting number of bubbles per unit time

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15
Q

Adaptations for light absorption

A

Large surface area

Waxy cuticle is transparent

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16
Q

Adaptations for Gas exchange

A

Guard cells can change shape

Spongy mesophyll has intercellular spaces

17
Q

Limiting factor

A

Factor that is in the shortest supply

18
Q

Increase reliability

A

Repeat

19
Q

Guard cells

A

Control the opening of the stoma

20
Q

Stoma

A

Closes to reduce evaporation

21
Q

Air spaces

A

For diffusion of gas

22
Q

Spongy mesophyll

A

Main gas exchange surface

23
Q

Cuticle

A

Reduces evaporation but allows light through

24
Q

Palisade mesophyll

A

Packed with chloroplasts

25
Q

How does a plant use the products of photosynthesis

A

Growth
Storage as starch
Respiration

Biology Unit 1 (2 decks)

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