- Explain why water would have none of its
biologically important properties if its three atoms were in a straight
line rather than a 105°
angle.
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- Although nitric oxide is now known to be a
chemical messenger between cells, but it is very doubtful that carbon
dioxide, another gas, will be found to play a similar role. Why?Click Here for Answer
- Examine
the structures of cellulose and starch. Based on your observation, why
do you think the starch-digesting enzyme amylase cannot digest
cellulose? In light of this
conclusion, what do you think is the functional group on starch to which
amylase binds?
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- Some metabolic conditions such as diabetes
mellitus cause disturbances in the acid-base balance of the body, giving
the body fluids an abnormally low pH. Explain how this could affect enzyme-substrate reactions and
metabolic pathways in the body.
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- What are the similarities and differences
between a glycoprotein and a proteoglycan?
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