Answer: Three fatty acids.
- A One amino acid
- B Two phosphate groups
- C One nucleotide base
- D Three fatty acids
Correct answer: D. Three fatty acids
Explanation: A fat molecule is an ester of glycerol with three fatty-acid chains.
As substrate concentration rises, reaction rate increases steeply at first, then plateaus at Vmax once every enzyme molecule is working at full capacity; Km is the substrate concentration giving half-maximal rate, and a LOWER Km means the enzyme reaches that rate with less substrate (higher affinity).
Concept context
Carbohydrates, proteins, lipids, nucleic acids, and enzyme kinetics. Essential foundation for understanding metabolism.