Explain how the movement of hydrogen and potassium ions across the membranes of guard cells
opens and closes the stomata. What will be an ideal response?
Concepts to Consider: Light triggers H+ to be pumped out of guard cells; K+ can then be actively
transported into guard cells; this results in the entry of water by osmosis into guard cells; turgidity of
guard cells is increased, causing them to change shape and open pore. There appears to be a reversal of
this process for stomatal closure.
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Twenty different types of amino acids are used to make proteins
a. True b. False Indicate whether the statement is true or false
What are the differences between dysploidy and polyploidy?
What will be an ideal response?
These types of compounds are a group of unrelated organic molecules, either water-soluble or fat-soluble, used in the manufacture of final products by acting as coenzymes.
A. phosphates B. acids C. vitamins D. enzymes
Microbial contamination always results in infection.
Answer the following statement true (T) or false (F)