Question

question 19
0.25 pts
the process of the digestion of food is an example of which type of reaction?
synthesis
decomposition
exchange
reversible
question 20
0.25 pts
an example of a catabolic process is:
hydrolysis.
dehydration synthesis.
formation of a peptide bond.
both b and c.
question 21
0.25 pts
a specialized cell structure that propels the sperm is the:
flagellum.
cillum.
microvillus.
microtubule.

Explanation:

Question 19

Food digestion breaks large molecules into smaller ones, which is decomposition (breaking down). Synthesis builds up, exchange swaps parts, reversible can go both ways. Digestion is decomposition.

Catabolic processes break down molecules (release energy). Hydrolysis breaks bonds with water (catabolic). Dehydration synthesis (anabolic, builds with water removal), peptide bond formation (anabolic). So hydrolysis is catabolic.

Sperm use flagella for movement. Cilia are shorter, microvilli increase surface area, microtubules are part of structure but not the propeller. Flagellum propels sperm.

Answer:

B. Decomposition

Question 20