photosynthesis Flashcards

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1
Q

what makes their food using photosynthesis?

A

plants and algae

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2
Q

what is the food produced?

A

sugar called glucose

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3
Q

what will increase due to photosynthesis?

A

plant biomass

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4
Q

what happens during photosynthesis?

A

plants produce glucose + oxygen from carbon dioxide+ water using light energy from the sun

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5
Q

photosynthesis equation?

A

carbon dioxide+water—-> glucose+oxygen

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6
Q

whys it an endothermic reaction?

A

it requires light energy to react carbon dioxide and water to produce glucose and oxygen

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7
Q

the light energy is absorbed by a green pigment called…

A

chloropyll in the leaves.

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8
Q

wheres chloropyll located?

A

in chloroplasts in plant cells

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9
Q

main organ for photosynthesis?

A

plant leaves

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10
Q

stomota?

A

tiny holes in skin of the leaf. control gas exchange by opening and closing and are involved in loss of water from leaves.

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11
Q

what is a singular stomota called?

A

stoma

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12
Q

xylem?

A

narrow,hollow dead tubes with lignin, transport of water and minerals in plants

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13
Q

what is some of the glucose produced by photosynthesis used for?

A

respiration

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14
Q

respiration?

A

chemical change that takes place inside living cells, which uses glucose and oxygen to release the energy that organisms need to live.

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15
Q

what can the glucose not used for respirtion be used for?

A

starch, lipids(fats/oils),cellulose and nitrates absorbed from the soil (amino acids, proteins)

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16
Q

starch is soluble or insoluble?

A

insoluble

17
Q

starch is a storage form of…

A

carbohydrate

18
Q

cellulose is used to…

A

build cell walls and adds strength to them

19
Q

lipids (fats/oils) is used for…

A

storage in seeds

20
Q

how to measure photosynthesis…

A

number of bubbles or volume of oxygen gas set off at a time, rate of carbon dioxide uptake, rateof glucose production.

21
Q

the rate of photosynthesis is proportional to what?

A

the light intensity until another factor becomes limiting

22
Q

the chemical reactions in photosynthesis are controlled by…

A

enzymes. enzymes controlled reactions are affected by temp

23
Q

enzymes?

A

a protein which catalyses or sppeds up a chemical reaction.

24
Q

Gg

A

Gg