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.
7 answers