Photosynthesis and Leaf Structure Flashcards

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1
Q

What is photosynthesis?

A

the process in which plants use carbon dioxide and water to synthesise glucose, using energy from the Sun

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2
Q

What is the word equation for photosynthesis?

A

carbon dioxide + water -(via light and chlorophyll)-> glucose + oxygen

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3
Q

What is chlorophyll?

A

Green pigment found in chloroplasts, which are an organelle of a plant cell.

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4
Q

What is chlorophyll’s function?

A

It is responsible for absorbing light energy into chemical energy to be used for photosynthesis.

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5
Q

What is the chemical equation for photosynthesis?

A

6CO2 + 6H20 –> C6H12O6 + 6O2

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6
Q

What are the different carbohydrates formed from glucose from photosynthesis?

A

starch, cellulose, sucrose, nectar

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7
Q

What is starch used for?

A

energy storage

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8
Q

What is cellulose used for?

A

building cell walls

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9
Q

What is glucose used for?

A

in respiration as an energy provider

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10
Q

What is sucrose used for?

A

transport in phloem vessels

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11
Q

What is nectar used for?

A

to be attractive to insects who pollinate

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12
Q

Why are nitrate ions important for a plant?

A

creating amino acids, the building blocks of protein

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13
Q

Why are magnesium ions important for a plant?

A

creating chlorophyll

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14
Q

What is the effect of light intensity on photosynthesis?

A

As it increases, so does the rate of photosynthesis, until it reaches a plateau due to lack of chlorophyll

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15
Q

What is the effect of carbon dioxide on photosynthesis?

A

As it increases, so does the rate of photosynthesis, until it reaches a plateau due to lack of chlorophyll

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16
Q

What are the main factors affecting photosynthesis?

A

water in soil, light intensity, concentration of carbon dioxide

17
Q

How are leaves adapted for photosynthesis?

A

They are thin and have a large surface area for absorption of sunlight and have pores to allow the diffusion of gases in and out of the plant