Trace the flow of a water molecule that is used during photosynthesis
A) stoma ? xylem ? root hair ? mycorrhiza
B) soil ? root hair ? xylem ? stoma ? atmosphere
C) soil ? root hair ? xylem ? leaf cell
D) soil ? xylem ? leaf cell ? atmosphere
C
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Describe how bacteriophages influence the ocean's bacterial populations and nutrient cycling
What will be an ideal response?
In the chloroplast, cytochrome b6f is an important complex in the photosynthetic electron transport chain because it accepts electrons from photosystem II and donates them to photosystem I
Another vital function of cytochrome b6f is that during its reduction-oxidation cycle it pumps ______ from the _____. A. hydrogen ions; stroma into the thylakoid B. electrons; stroma into the thylakoid C. hydrogen ions; thylakoid into the stroma D. electrons; thylakoid into the stroma
Which structure adjusts to control the intensity of incoming light?
a. cornea b. sclera c. iris d. ciliary body e. fovea
Osmosis includes ________.
a. a semi-permeable membrane b. transport proteins c. both the diffusion of water and a semi-permeable membrane d. the diffusion of water