7.2- Photosynthesis occurs in chloroplasts in plant cells
How is water delivered to leaves?
Water absorbed by roots= delivered to leaves through veins. Leaves also use veins to export sugar to roots and other parts of plant.
In the chloroplast, an envelope of how many membranes enclose the inner compartment?
2 membranes
How many chloroplasts are in a typical mesophyll cell?
About 30-40 chloroplasts.
What is it called when thylakoids are concentrated in stacks?
Grana (singular, granum)
Why else are the thylakoid membranes important?
House machinery that converts light energy to chemical energy, which is used in stroma to make sugar.
Where are chloroplasts concentrated?
In the cells of the mesophyll: Green tissue in interior of leaf.
What is suspended in the stroma?
Interconnected membranous sacs= thylakoids: Enclose another internal compartment, called the thylakoid space.
Where is the major site of photosynthesis in most plants? Where does the leaf's green color come from?
Leaf Chlorophyll= light-absorbing pigment in chloroplasts: Big role in converting solar energy to chemical energy.
Where, specifically, is chlorophyll found?
Built into thylakoid membranes: Capture light energy.
How does carbon dioxide enter the leaf, and oxygen exit the leaf?
By way of tiny pores called stomata (singular, stoma).
What fluid is the inner membrane filled with?
Stroma
What part of the chloroplast forms the framework within which many of the reactions of photosynthesis occur?
The membranes.
