Question

which statement describes the reaction for cellular respiration?
○ the equation is carbon dioxide + water → glucose + oxygen + water and energy is required in the form of light
○ the equation is glucose + oxygen → carbon dioxide + water and energy is produced in the form of atp.
○ the equation is carbon dioxide + water → glucose + oxygen + water and energy is produced in the form of atp.
○ the equation is glucose + oxygen → carbon dioxide + water and energy is required in the form of light.

Explanation:

To determine the correct statement about cellular respiration, we recall the process: Cellular respiration uses glucose and oxygen to produce carbon dioxide, water, and energy (in the form of ATP). Photosynthesis (which uses light energy) has the equation carbon dioxide + water → glucose + oxygen. So we analyze each option:

• First option: Reactants (CO₂ + H₂O) and energy source (light) match photosynthesis, not respiration. Eliminate.
• Second option: Reactants (glucose + oxygen), products (CO₂ + H₂O), and energy as ATP match cellular respiration.
• Third option: Reactants (CO₂ + H₂O) are for photosynthesis, not respiration. Eliminate.
• Fourth option: Energy source (light) is for photosynthesis, and reactants/products mismatch respiration. Eliminate.

Answer:

The equation is glucose + oxygen → carbon dioxide + water and energy is produced in the form of ATP.