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biochemistry Flashcards

(33 cards)

1
Q

what parts are in a plant cell?

A

cell membrane
cell wall
cytoplasm
nucleus
chloroplast
vacuole

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2
Q

what does chlorophyll do?

A

transfer the sun into food

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3
Q

why are the four requirements for photosynthesis

A

sunlight
carbon dioxide
chlorophyll
water

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4
Q

what are the products of photosynthesis?

A

glucose and oxygen

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5
Q

what controls the pores opening or closing on a leaf?

A

guard cells

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6
Q

where does the carbon dioxide move to in the leaf to be used for photosynthesis?

A

palisade mesophyll

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7
Q

what is the hollow tube that water enters the leaf by called?

A

xylem tube

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8
Q

what do the epidermis and waxy cuticle do?

A

stop bacteria entering and water from escaping

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9
Q

what do palisade mesophyll cells have a special feature of?

A

lots of chlorophyll

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10
Q

where are palisade mesophyll cells found?

A

near the top

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11
Q

what is a vascular bundle?

A

a vascular bundle is a large airspace

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12
Q

why is a leaf thin?

A

it helps allow gasses diffuse easily

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13
Q

why have leaves adapted to change direction?

A

to absorb more sunlight

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14
Q

what does the xylem and phloem do?

A

transport water to the leaf and take sugars away

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15
Q

why does leaves have many stomata?

A

allows for gas exchange

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16
Q

what process happens in the roots?

17
Q

what does nitrogen cause if there isn’t enough of it?

18
Q

what does magnesium cause if there isn’t enough of it?

A

poor growth and yellowish leaves

19
Q

what does phosphorus cause if there isn’t enough of it?

A

weak shoots and roots

20
Q

what does nitrogen do for plants?

A

makes proteins that are used for growth

21
Q

what does magnesium do in a plant?

A

makes chlorophyll

22
Q

what does phosphorus do in a plant?

A

it is needed to help cells grow and divide

23
Q

what is respiration

A

it is the process of releasing from glucose

24
Q

where does glucose come from in aerobic respiration?

25
where does oxygen come from in aerobic respiration?
from air
26
where does carbon dioxide come from in aerobic respiration?
exhaled
27
where does water come from in aerobic respiration?
exhaled
28
where does respiration happen?
it happens in the mitochondria cells
29
where does combustion take place?
it takes place where burning occurs
30
what gas do animals and plants need for aerobic respiration?
they need oxygen
31
what acidic gas do animals produce in respiration
carbon dioxide
32
where does aerobic respiration take place in animals?
in all cells
33
what turns from clear to milky when carbon dioxide is added to it?
limewater