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Photosynthesis Bio test 10/25/2024 > Photosynthesis Bio test 10/25/2024 > Flashcards

Photosynthesis Bio test 10/25/2024 Flashcards

Photosynthesis

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Biology 101 flashcards
1
Q

in what organelle does photosynthesis occur?

A

Chloroplasts

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2
Q

What are the two different reactions in Photosynthesis?

A

light-dependent and light-independent

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3
Q

What is the main pigment responsible for gathering the sun’s energy during photosynthesis

A

Chlorophyll

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4
Q

what is the chemical equation for photosynthesis?

A

6CO^2 + 6H^2O → C^6H^12O^6 + 6O^2.

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5
Q

why do we need plants?

A

we cant make our own energy
and…
they are the first level of the food chain

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6
Q

where do light-dependent reactions take place in the chloroplast?

A

thylacoide

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6
Q

what is the molecule that stores energy for the cells?

A

ATP

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7
Q

what is the molecule that serves as a “carrier” for high energy electrons?

A

NADP+

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8
Q

are plants the only organisms that can go through photosynthesis?

A

no because bacteria has this occur as well

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9
Q

where do light-independent reactions take place in the chloroplast?

A

stroma

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9
Q

what cycle is light-dependent?

A

Calvin cycle

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10
Q

what comes out of light-dependent?

A

oxygen and ATP

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11
Q

what comes in light-dependent?

A

water and sunlight

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11
Q

what is the stroma?

A

region outside the thylakoid membrane, where the light-independent reactions occur.

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11
Q

what comes out of light-independent?

A

glucose sugar

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12
Q

what comes in light-independent?

A

carbon dioxide and ATP

13
Q

autotroph

A

An organism that can make its own food

14
Q

heterotroph

A

An organism that gets its energy by eating other organisms

15
Q

reactants

A

The ‘inputs’ of a chemical reaction. Located on the left side of a chemical equation. (ie- the ingredients)

16
Q

products

A

The ‘outputs’ of a chemical reaction. Located on the right side of a chemical equation. (ie- whats made) (cake)

17
Q

stomata

A

Small openings on the underside of a leaf through which oxygen and carbon dioxide can move. Where gas exchange occurs in a plant.

18
Q

chlorophyll

A

Green pigment which ‘fills’ chloroplast. This pigment captures sunlight.

18
Q

photosynthesis

A

Conversion of light energy from the sun into chemical energy (stored in glucose).

19
Q

chloroplast

A

Double membrane-bound organelle that is the site where photosynthesis occurs.

20
Q

leaves job

A

Collect sunlight and contain the chloroplasts which produce food

20
Q

Photosynthesis Reactants

A

carbon dioxide, water, and sunlight

20
Q

Photosynthesis Products

A

oxygen and glucose

21
Q

Glucose (C6H12O6)

A

A simple sugar produced by plants through photosynthesis and used as food.

21
Q

Thylakoid

A

A flattened membrane sac inside the chloroplast, used to convert light energy into chemical energy through the light dependent stage

22
Q

Stroma

A

gel-like region outside the thylakoid membrane of the chloroplast where the light independent reaction occurs

22
Q

light-dependent reactions

A

1st part of photosynthesis that takes place in the thylakoid and that captures energy from sunlight.

23
Q

Light Independent Reactions (Calvin Cycle)

A

2nd stage of photosynthesis, occurs in stroma and produces glucose

24
Q

Pigments

A

light absorbing molecules in plants

25
Q

Granum

A

A stack of thylakoids in a chloroplast

26
Q

Photoautotrophs

A

Organisms that use light as a source of energy to create food

26
Q

guard cells

A

Cells that control the opening and closing of stomata on leaves

27
Q

Transpiration

A

Evaporation of water from the leaves of a plant

28
Q

Carotene

A

yellow-orange pigment

29
Q

Chemosynthesis

A

process in which chemical energy is used to produce carbohydrates

Photosynthesis Bio test 10/25/2024 (1 decks)

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