Question

1. which two things does the model show? the model shows the rearrangement of molecules when a boy eats some food. metabolism oxygen taken in by person → oxygen available for reaction; food → glucose; then outputs water, protein, energy. a. chemical reactions form glucose molecules. b. chemical reactions can rearrange molecules. c. chemical reactions bond simple molecules. d. chemical reactions can release energy. e. chemical reactions destroy energy

Explanation:

• Option A: The model shows food (not chemical reactions) forming glucose. Eliminate A.
• Option B: The model shows oxygen and glucose rearranged into water, protein, etc., so B is correct.
• Option C: The model doesn't show bonding simple molecules. Eliminate C.
• Option D: The model shows energy released (sun - like symbol), so D is correct.
• Option E: Energy is conserved, not destroyed. Eliminate E.

Answer:

B. Chemical reactions can rearrange molecules, D. Chemical reactions can release energy