photosynthesis and cellular respiration review que
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Photosynthesis and cellular respiration
review
How do plants exchange gasses with the atmosphere? - CORRECT ANSWER-It
is exchanged by the stomata which is an opening found on the underside of
leaves through which water vapor and gases (CO2 & O2) are exchanged
between the plant and the atmosphere.
What is photosynthesis? - CORRECT ANSWER-Photosynthesis is when plants
use sunlight to convert water and carbon dioxide into oxygen and glucose.
What types of organisms undergo photosynthesis? - CORRECT ANSWER-Only
autotrophs undergo photosynthesis
Where does photosynthesis occur (in what part of the cell)? - CORRECT
ANSWER-It occurs in the chloroplast.
What are the 2 reactions that take place in photosynthesis? What happens in
each? - CORRECT ANSWER-Light-dependent reactions:
Capture energy from sunlight
Make ATP and reduce NADP+ to NADPH
Requires light
Occurs in the thylakoids in the chloroplast
Chlorophyll traps energy from light
Light-independent (dark) reaction:
Also known as the Calvin Cycle
uses ATP produced to make simple sugars.
use ATP and NADPH to synthesize organic molecules from CO2
Does not require light
Occurs in the stroma of the chloroplast
Requires CO2
Uses ATP as fuel to run
Makes glucose sugar from CO2 and Hydrogen
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