Photosynthesis Flashcards

1
Q

What is photosynthesis?

A

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose.

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2
Q

True or False: Photosynthesis occurs only in the presence of sunlight.

A

True

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3
Q

Fill in the blank: The main pigment involved in photosynthesis is called ______.

A

chlorophyll

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4
Q

What are the two main stages of photosynthesis?

A

Light-dependent reactions and the Calvin cycle (light-independent reactions).

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5
Q

Which gas is absorbed by plants during photosynthesis?

A

Carbon dioxide (CO2)

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6
Q

What is the primary output of photosynthesis?

A

Glucose (C6H12O6)

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7
Q

Multiple Choice: Which of the following is NOT a product of photosynthesis? A) Oxygen B) Glucose C) Carbon Dioxide D) Water

A

C) Carbon Dioxide

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8
Q

What role do chloroplasts play in photosynthesis?

A

Chloroplasts are the organelles where photosynthesis occurs.

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9
Q

True or False: Photosynthesis contributes to the oxygen content of the atmosphere.

A

True

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10
Q

What is the formula for photosynthesis?

A

6CO2 + 6H2O + light energy → C6H12O6 + 6O2

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11
Q

Fill in the blank: The light-dependent reactions take place in the ______ of the chloroplasts.

A

thylakoid membranes

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12
Q

What is the function of ATP and NADPH in photosynthesis?

A

ATP and NADPH provide the energy and reducing power, respectively, for the Calvin cycle.

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13
Q

Multiple Choice: Which of the following factors can affect the rate of photosynthesis? A) Light intensity B) Temperature C) Carbon dioxide concentration D) All of the above

A

D) All of the above

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14
Q

What is the Calvin cycle primarily responsible for?

A

The Calvin cycle is responsible for synthesizing glucose from carbon dioxide.

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15
Q

True or False: Only plants can perform photosynthesis.

A

False

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16
Q

Photosynthesis

A

CO²+H²O->C⁶H¹²O⁶+0²

anabolic (high energy “hump”)

  1. Light-dependent Rxn
  2. Calvin-Benson Cycle
  3. Assimilation of CO²
17
Q

Light dependent reaction

A

photolysis of water (cleave)
-> NADPH + ATP

18
Q

Calvin Cycle

A

reduction & biosynthesis
adds H to CO² molecules to create carbs!!

anabolic (synthesizes)

form G3P -> carbs

capture CO²->assimilate carbon

19
Q

Assimilation

A

G3P -> Carbs
-> Amino Acids
->Fats >Proteins