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Biology > Photosynthesis > Flashcards

Photosynthesis Flashcards

unit 3 test

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1
Q

What is the main pigment of plants?

A

Chlorophyll

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2
Q

What pigments give fall colors?

A

Carotenoids

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3
Q

Long term energy is provided by what?

A

ADP&NADP

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4
Q

What are autotrophs?

A

They are organisms that can make and eat food on there own.

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5
Q

What are heterotrophs?

A

They are organisms that cannot make there own food.

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6
Q

what are producers and what are consumers?

A

Producers are autotrophs and consumers are heterotrophs.

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7
Q

Where does the light reaction take place?

A

In the grana

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8
Q

where do dark reactions take place?

A

the stroma

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9
Q

the process where H2O is broken down or split into produce O2 gas

A

photosynthesis

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10
Q

photons

A

tiny packets of light energy

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11
Q

photosystems are?

A

A cluster of photosynthetic pigments embedded in membrane.

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12
Q

what is the range for visible light is?

A

700-400 nanometers

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13
Q

leaves appear green because chlorophyll ______ green light which makes the leaves appear that color

A

reflect

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14
Q

if the wavelength is high then there is _____ energy

A

low

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15
Q

if the wavelength is low then there is _____ energy

A

high

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16
Q

what color has the bigger wavelength and what color has the smaller wavelength?

A

red has a bigger wavelength then violet.

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17
Q

violet has _______ energy then red does

A

higher

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18
Q

ATP is made up of what

A

Adenine base, Ribose sugar and phosphate

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19
Q

the calvin cycle is what reaction?

A

dark reaction

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20
Q

stack of thylakoid’s are called what?

A

grana

21
Q

fluid around the grana is called what?

A

stroma

22
Q

each coin like structure in chloroplast is called what?

A

thylakoid

23
Q

The reactions of photosynthesis are what?

A

carbon dioxide + water (6co2 + 6H20)

24
Q

The products of photosynthesis is what?

A

glucose + oxygen (C6 H12 O6 + 6O2)

25
Q

The reactants of the light reaction is what?

A

ADP NADP light

26
Q

what are the products of light reaction?

A

o2, ATP, NADPH

27
Q

what are the reactants of dark reaction?

A

NADPH, ATP,6C02

28
Q

what are the products of dark reactions?

A

NADP, ADP, P, Glucose (sugar)

29
Q

photosynthesis converts what compounds?

A

organic compounds ~ inorganic compounds

30
Q

PS1 absorbs what kind of light?

A

700 NM light (lower energy)

31
Q

PS11 absorbs what type of light?

A

680nm light (higher energy, red orange light)

32
Q

when cells need energy they do what?

A

break down ATP

33
Q

when cells need to store energy they do what?

A

make ATP

34
Q

light reactions is independent or dependent reaction?

A

dependent reaction

35
Q

dark reactions are independent or dependent reactions?

A

independent

36
Q

substance that absorbs and reflects light

A

pigment

37
Q

what is the most harmful wavelengths on the light spectrum?

A

Gramma waves,ultraviolet (x-ray waves)

38
Q

radiowaves and infrared have what kind of energy and wave length?

A

low energy and high wavelengths

39
Q

what is the visible light range?

A

700-400 nm (ROYGBIV)

40
Q

what’s the pigment that gives fall colors?

A

carotenoids (reflect the orange, yellow, red light)

41
Q

chromatography is what?

A

The process of separating individual pigments or substances from a mixture of substances using a solvent

42
Q

takes place in the photosystems 1- 2 in the thylacoids of the grana which the help of chlorophyll

A

Light dependent reaction

43
Q

photosystems are what?

A

clusters of light absorbing pigments located in the grana

44
Q

how do PS1 and PS11 help make stuff for the light reactions?

A

one makes ATP and one makes NADPH

45
Q

photosystem one makes what?

A

NADPH

46
Q

photosystem two makes what?

A

ATP

47
Q

does not require a light, but cannot be taken place unless light reaction has been taken place is what?

A

dark reaction

48
Q

dark reaction is also known as fixing what?

A

fixing CO2

49
Q

The dark reaction is also known as what?

A

calvin cycle or building carbohydrates

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