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9.1, 9.2 review

review of photosynthesis

QuestionAnswer
What happens to light when it hits the pigment chlorophyll in the chloroplast of the plant cell? green in the light spectrum is reflected and other parts of the light spectrum are absorbed. We see leaves as green because of the chlorophyll that is absorbing all light except the green which our eyes collect.
What are photosystems? Photosystems are collections of pigments, with the main pigment being chlorophyll.
In what organisms does photosynthesis occur? Photosynthesis occurs in autotrophs.
What is the major light absorbing pigment in plants? chlorophyll
What is the equation for photosynthesis? You will have to know this ... be ready
The light dependent reactions use light to make what two products? ATP and NADPH
Where do the light dependent reactions of photosynthesis take place? The thylokoid membranes
The cells require energy for growth and reproduction, movement, transport of certain materials across cell membranes
Photosynthesis is the process whereby plants capture energy and make complex molecules
Suspended in the fluid stroma of chloroplasts are stacks of thylakoids called grana
Chlorophyll is green because photons of green wavelengths are reflected. Other colors are absorbed.
What happens when a chlorophyll molecule absorbs a photon of light? some of its electrons are raised to a higher energy level.
What happens when electrons of the chlorophyll are raised to a higher energy level? they enter an electron transport chain
How are the electrons of photosystem I replaced? they are eventually replaced by electrons from photosystem II.
The source of oxygen produced during photosynthesis is the water molecule which is split in the process of photolysis
Describe the dark reactions/Calvin Cycle requires ATP and NADPH, can occur in both light and dark conditions, generates glucose
In what series of reactions is the complex carbohydrate (sugar) produced The Calvin Cycle
All organic molecules contain carbon atoms that ultimately can be traced back to carbon dioxide from the atmosphere
What is the main purpose of the Calvin Cycle? To produce sugar
What is the sugar that is a part of AMP, ADP, and ATP? Ribose
How is energy released from ATP? Energy is released when the bond is broken between the 2nd and 3rd phosphate group
Cells store energy when a third phosphate group is bonded to an ATP molecule.
The ADP molecule contains adenine, ribose, two phosphate groups
Where does the Calvin Cycle take place? the stroma
The energy currency molecule in the cell is ATP
Be sure you can sequence the events in the light dependent reactions. See your study guide for help
Created by: cwear
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