Biology ch 5 Energy and Photosynthesis

Select examples of energy changing forms. Select the THREE answers that are correct.

- A green plant absorbs light to make sugar molecules. - A human jogs down the street for exercise. - From a high perch, a raptor dives toward its prey.

Which statement best summarizes the law of conservation of energy?

Energy changes forms and is neither created nor destroyed.

How would an anaerobic environment affect photosynthesis?

Photosynthesis would continue, assuming there was also sufficient light, water, and carbon dioxide.

What role does water play in photosynthesis?

Water provides hydrogen and electrons used in producing glucose.

What happens to plants in the absence of light? Select the TWO answers that are correct.

- The process of photosynthesis shuts down. - Plants stop generating chemical energy from light.

What roles do atmospheric gases have in photosynthesis? Select the TWO answers that are correct.

-Oxygen is produced from water during the light-gathering phase of photosynthesis. - Carbon dioxide is a reactant for photosynthesis that provides the carbon in glucose.

What role does carbon dioxide play in photosynthesis?

The carbon in carbon dioxide is incorporated into sugar molecules.