Question

ann is drawing a model of what happens when a person eats an apple.
apple → beginning of digestion → sugar molecules from apple → ?
which statement best describes the next step in ann’s model?
○ sugar molecules may combine with any other molecules to absorb waste material from cells.
○ sugar molecules break down further to release energy inside cells.
○ sugar molecules break down further to release oxygen for use by cells.
○ sugar molecules combine chemically to absorb energy made by cells.

Explanation:

To determine the next step, we analyze cellular respiration: after digestion breaks food into sugar (like glucose), cells break down sugar further (via cellular respiration) to release energy (ATP) for cell functions. Let's evaluate each option:

• Option 1: Absorbing waste isn't sugar's role; elimination/transport systems handle waste. Incorrect.
• Option 2: Correct. Sugar (glucose) is broken down in cells (e.g., glycolysis, Krebs cycle, ETC) to release energy (ATP).
• Option 3: Sugar breakdown consumes oxygen (or uses anaerobic pathways), it doesn't release oxygen. Oxygen is used in aerobic respiration. Incorrect.
• Option 4: Cells make energy (not absorb it) from sugar; sugar is broken down, not combined to "absorb" cell - made energy. Incorrect.

Answer:

Sugar molecules break down further to release energy inside cells.