Question

Which statement best explains how the structure of a starch molecule relates to its function?


A- A branching structure makes the molecule stronger.

B- A branching structure has more chemical bonds than an unbranched structure.

C- A branching structure provides many points where enzyme digestion can take place and release glucose molecules.

D- A branching structure contains bonds that are harder to break.




My choice is C.





Which characteristic do glycogen and starch share?


A- Both are storage forms of glucose.

B- They are the most energy-rich organic molecules.

C- They are proteins.

D- Both are difficult to digest.



My choice is A.






Most lipids contain long chains of which two atoms?

A- water and phosphorus

B- water and carbon

C- carbon and hydrogen

D- carbon and oxygen


My choice is C.






Which statement best relates to how the structure of a lipid influences the lipid’s function?


A- The ends of the lipid are attached to each other.

B- Lipids contain fatty acids and glycerol.

C- A phospholipid has a charged head and an uncharged tail.

D- A lipid is made up of a long chain of phosphorus molecules.



My choice is C.