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Basic definition of photosynthesis
Builds up organic compounds to store up energy
Basic definition of Cellular Respiration
Breaks down organic compounds to release energy
Two Stages of photosynthesis in the leaves
Light Dependent Reactions and The Calvin cycle
Where do light reactions take place?
In the thylakoid membrane
What do the light reactions require
A continuous supply of light energy
What and where is sunlight converted during photosynthesis?
In the chlorophyllWha the light energy is captured and converted into chemical energy.
What two compounds are in chemical energy?
ATP, and NADPH
What is ATP?
An energy storage molecule
What is NADPH?
A reduced electron carrier
In which stage of photosynthesis is oxygen made ?
Light Dependent Reactions
Where does the Calvin cycle take place?
The Stroma
What does the Calvin cycle not require?
Light
What does the Calvin cycle use to produce glucose?
ATP and NADPH
What do leaves function as?
Solar Collectors
What do plants use to exchange gas?
Stromates on the underside of leaves
How many chloroplast does one plant cell have?
40-50
Where does photosynthesis usually take place?
The leaves
What are the cells in the middle layer of the leaf called?
Mesophyll
Where are stomata found?
Small pores on the surface of the leaf
What do the stomata do?
Let carbon dioxide diffuse into the mesophyll layer and let oxygen diffuse out
What are thylakoids?
disc-like structures arranged in piles like stacks of pancakes
What is in the membrane of thylakoids?
Chlorophylls
What do cholorphylls do?
Absorb light
What is the Stroma?
Fluid filled space around the grana
What are the thylakoids stacks called?
Grana or granum
What color wavelength does chlorophyll best absorb?
Red and Blue
What is the absorption spectrum?
shows how strongly the pigments absorb at different wavelengths.
What is the action spectrum?
rate of a physiological activity plotted against wavelength of light.
Where does the ATP and NADPH go after being produced?
The Calvin Cycle
What is ATP composed of?
Ribose, a 5-carbon sugar, 3 phosphate groups, and adenine, a nitrogenous base.
What does the light reactions create?
Energy Storage Molecule ATP, and reduced electron carrier NADPH
Where do light reactions take place?
Thylakoid Membranes
Which Photosystem comes first?
Photosystem II
What is the special pair of photosystem I called?
P700
What is the special pair of photosystem II called?
P680
Where are the photosystems and Electron transport chain?
The thylakoid membrane
What happens in Photo system II when energy reaches the reaction center?
Energy is transferred to P680, boosting an electron to a high energy level
Where is water split?
Thylakoid
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