photosynthesis. Flashcards

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1
Q

what are the factors that affect photosynthesis?

A

light intensity.
temperature.
carbon dioxide concentration.

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2
Q

why does light intensity affect photosynthesis?

A

limited by light intensity.
limited by carbon dioxide concentration or temp.

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3
Q

why does temperature affect photosynthesis?

A

particles have more energy - increase rate.
optimum temp then they become denatured.

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4
Q

why does carbon dioxide concentration affect photosynthesis?

A

limited by carbon dioxide concentration.
limited by light intensity or temp.

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5
Q

how does a plant use the product of glucose it has produced?

A

used by plant for respiration.
may also be changed into other products: insoluble starch ( stored in stem, leaves, or roots.)
fat or oil which is also stored eg: in seeds.
cellulose- to strengthen cell walls.
proteins- growth and for enzymes.

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6
Q

what do you test a green leaf for and what does this let you know?

A

starch.
plant has photosynthesising.

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7
Q

what does the graph for rate of photosynthesis and light intensity looks like?

A

curved line going up. like the start of n.

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8
Q

what is the graph for rate of photosynthesis and light intensity limited by at the beginning and end?

A

end: co₂ concentration or temp.

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9
Q

what does the graph for rate of photosynthesis and co₂ concentration?

A

curved line going up like the start of n.

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10
Q

what is the graph of rate of photosynthesis and co₂ concentration limited by at the beginning and end?

A

end: light intensity or temp.
beginning: co₂ concentration.

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11
Q

what is the graph for rate of photosynthesis and temp look like?

A

n.

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12
Q

what is the graph rate of photosynthesis and temperature limited by at the beginning, middle and end?

A

beginning: particles have more energy- increases rate of reaction.
middle: optimum temp.
end: enzymes denatured.

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13
Q

leaf diagram: top layer 1.

A

waxy cuticle.

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14
Q

leaf diagram: second layer. 2.

A

upper epidermis.

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15
Q

leaf diagram: third layer. 3.

A

palisade mesophyll.

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16
Q

leaf diagram: layer 4. off to the side.

A

vein.
vascular bundle.

17
Q

leaf diagram: layer 5.

A

spongy mesophyll.

18
Q

leaf diagram: layer 6.

A

air space.

19
Q

leaf diagram: layer 7 inside.

A

guard cell.

20
Q

leaf diagram: layer 7. outside.

A

lower epidermis.

21
Q

leaf diagram: layer 8.

A

waxy cuticle.

22
Q

function of tissue and how it has adapted to its function: spongy mesophyll.

A

gas exchange.
big air spaces.

23
Q

function of tissue and how it has adapted to its function: palisade mesophyll.

A

photosynthesis.
contains lots of chloroplasts.

24
Q

function of tissue and how it has adapted to its function: epidermal.

A

reduce water loss.
covers whole plant.

25
Q

function of tissue and how it has adapted to its function: meristem.

A

allows plant to grow.
differentiate into different types of plant cell.

26
Q

function of tissue and how it has adapted to its function: xylem.

A

transport water and minerals.
vascular bundle.

27
Q

function of tissue and how it has adapted to its function: phloem.

A

transport food.
vascular bundle.