C2 Photosynthesis Review Flashcards

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1
Q

During photosynthesis what to plants convert light energy into?

A

-During photosynthesis plants convert light energy into chemical energy (glucose)

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2
Q

What are the 2 components that photosynthesis is broken down into?

A
  1. Light dependant reactions: splits water and forms ATP (adenosine triphosphate)
  2. Carbon fixation (light independant reactions) (Calvin-Bensen cycle): glucose is made
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3
Q

What are chloroplasts?

A

-Site of photosynthesis
-have an inner and outer membrane

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4
Q

What is the stroma?

A

-Fluid in the inner space of chloroplasts
-contains proteins and other chemicals used in the synthesis of carbohydrates (light dependant reactions in the thylakoid)
-light independent reactions happen in the stroma

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5
Q

What is the thylakoid (membrane)?

A

-Flattened membrane sacs
-organized into stacks called grana or granum
-contain pigments which absorb light energy
-there are different photosynthetic pigments

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6
Q

What is chlorophyll?

A

-Pigment that makes plants green
-main photosynthetic pigment in plants
-plants are green because chlorophyll reflects green wavelengths of light and absorb red and blue wavelengths

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7
Q

What is the equation for photosynthesis?

A

-6H2O + 6CO2 —> C6H12O6 + 6O2

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8
Q

What is carotenoids?

A

-Present in carrots
-absorb violet and blue wavelengths but reflect yellow and orange
-the different pigments absorb the wavelengths of light that provide the right amount of energy to the electrons within them

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9
Q

What is photolysis?

A

-The process where water is split by light energy to produce hydrogen ions, oxygen atoms, and electrons
-O2 is a waste product of this process and is released by the plant

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