Question

photosynthesis is a process that can be performed by many autotrophic organisms within the ecosystem. without photosynthetic organisms, the food chain would not be able to sustain the energetic needs of the ecosystem. which statement compares the energy transformations that occur in the ecosystem within photosynthetic organisms?

a. solar energy is converted to thermal energy, which increases food availability for the ecosystem.

b. solar energy is converted into chemical potential energy, which is found in the products like glucose.

c. chemical energy in carbon dioxide is converted into solar energy, which provides a mechanism to produce food for the ecosystem.

d. kinetic energy of the reactants is converted to potential energy in the products, which can be metabolized within the ecosystem.

Explanation:

Photosynthesis is a process where plants use solar energy. In this process, solar energy (from light) is converted into chemical potential energy. This chemical potential energy is stored in the bonds of glucose (a product of photosynthesis).

• Option A is incorrect because solar energy is not converted to thermal energy in photosynthesis for the purpose of increasing food availability in the way described. Thermal energy is not the main energy transformation product relevant to food production in photosynthesis.
• Option C is wrong as it has the energy conversion backwards. It is solar energy that is used, not chemical energy in carbon dioxide being converted to solar energy.
• Option D is incorrect. The reactants (carbon dioxide and water) do not have kinetic energy that is the main source converted in the way described. The key is the conversion of solar energy.

Answer:

B. Solar energy is converted into chemical potential energy, which is found in the products like glucose.