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Biology > Chapter 7 > Flashcards

Chapter 7 Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

why do plants make glucose?

A

for cellular respiration

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2
Q

make own food from inorganic molecules

A

autotrophs

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3
Q

autotrophs feed

A

heterotrophs

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4
Q

what does photosynthesis turn into

A

solar into chemical energy

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5
Q

reactants of photosynthesis

A

CO2, H2O, light

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6
Q

products of photosynthesis

A

glucose and O2

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7
Q

what is the catalyst for photosynthesis

A

light

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8
Q

filled with chlorophyll

A

chloroplasts

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9
Q

where are chloroplasts

A
  1. mesophyll cells

2. epidermis

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10
Q

cells in the middle of leaf

A

mesophyll cells

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11
Q

protected by epidermis

A

mesophyll cells

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12
Q

2 types of mesophyll cells

A
  1. paliside

2. spongy

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13
Q

superior/top mesophyll cell

A

paliside

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14
Q

delivers water/nutrients up and down

A

vein

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15
Q

mini pores open and close for gas exchange

A

stomata

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16
Q

on inferior of leaf

A

stomata

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17
Q

release excess oxygen

A

stomata

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18
Q

take in carbon dioxide

A

stomata

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19
Q

how many chloroplasts does each mesophyll cell have?

A

30

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20
Q

networks of membranes active in photosynthesis

A

thylakoids

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21
Q

lots of surface area = more reaction

A

thylakoids

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22
Q

liquid material of chloroplast

A

stroma

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23
Q

primary pigment of plants

A

chlorophyll a

24
Q

in thylakoid membranes to capture light energy

A

chlorophyll a

25
Q

can prokaryotes go through photosynthesis

A

yes! some

26
Q

do not have chloroplasts

A

prokaryotes

27
Q

use thylakoid memebrane folds for electron transport

A

prokaryotes

28
Q

Photosynthesis is a

A

redox reaction

29
Q

during photosynthesis carbon dioxide is _____ and electrons/hydrogens are ________

A

reduced

added

30
Q

during photosynthesis water is ______ and electrons/hydrogens are _______

A

oxidized

lost

31
Q

2 stages of photosynthesis

A
  1. light reactions

2. calvin cycle

32
Q

sunlight powers electron removal from water

A

light reactions (stage 1)

33
Q

light energy produces ATP

A

light reactions (stage 1)

34
Q

light energy to chemical energy

A

light reactions (stage 1)

35
Q

electrons and ATP power carbon fixation

A

calvin cycle (stage 2)

36
Q

full range of energy from radio-gamma ray

A

electromagnetic spectrum

37
Q

vary in wavelength

A

electromagnetic spectrum

38
Q

light behaves as

A

photons

39
Q

fixed energy

A

photons

40
Q

more photon energy =

A

shorter wavelength

41
Q

aborbs red and blue and violet

A

chlorophyll a

42
Q

absorbs blue and orange

A

chlorophyll b

43
Q

what dectects color in our eyes

A

photoreceptors

44
Q

refelect yellow and orange

A

caratenoids

45
Q

light reactions and photosystems use _____ to excite electrons

A

the solar

46
Q

complex molecules in thykaloid membrane

A

photosystem

47
Q

collect solar energy and transform it into chemical energy

A

photosystem

48
Q

combination of pigments and proteins

A

light-harvesting complex

49
Q

light-gathering antenna absorb photons and pass the energy

A

light-harvesting complex

50
Q

pair of chlorophyll molecules accept electrons

A

reaction-center complex

51
Q

electrons are passed to the primary electron acceptor

A

reaction-center complex

52
Q

photosystems I and II work together to make

A

ATP and NADH and Light reactions

53
Q

chloroplasts have ATP synthase to make ATP,

A

photophosphorylation

54
Q

excited electrons passed from PSII to PSI pump H+ ions into thylakoid space

A

photophosphorylation

55
Q

H+ ions move through ATP synthase = ATP

A

photophosphorylation

56
Q

Why are light reactions important

A
  1. release energy to make ATP
  2. water is spilt
  3. Electrons are transferred to electron acceptor

Biology (24 decks)

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