1. Which atoms are in all carbohydrates?
a. carbon, nitrogen, oxygen
b. carbon, phosphorus, oxygen
c. carbon, hydrogen, nitrogen
d. carbon, hydrogen, oxygen
2. Which type of macromolecule is the sugar fructose?
a. protein
b. lipid
c. carbohydrate
d. nucleic acid
3. Which statement best explains how the structure of a starch molecule relates to its function?
a. A branching structure provides many points where enzyme digestion can take place and release glucose molecules.
b. A branching structure makes the molecule stronger.
c. A branching structure has more chemical bonds than an unbranched structure.
d. A branching structure contains bonds that are harder to break.
4. 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.
Answers & Comments
Verified answer
Answer 1---------D
Answer 4---------B
1. D
2. Fructose isn't a macromolecule, but if it were, the answer would be C
3. A (maybe)
4. A
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