Question

Plants are photoautotrophs. What does this mean?

A) They are attracted to light.
B) They are the primary consumers of the biosphere.
C) They synthesize their own food from inorganic materials.
D) They use light energy to drive the synthesis of organic molecules from inorganic materials.
E) They generate oxygen.

Answer 1

Photoautotrophs, including plants, algae, and some bacteria, use sunlight to synthesize their own food through photosynthesis, creating the basis of the food web and oxygen essential for aerobic life.

Step-by-step explanation:

Photoautotrophs are organisms that synthesize their own food using light energy from the sun through the process of photosynthesis. This group includes plants, algae, and some bacteria. Being autotrophs, they are capable of using inorganic carbon sources such as carbon dioxide to create organic compounds like carbohydrates. Chemoautotrophs, on the other hand, obtain energy from chemical bonds and are primary producers in ecosystems like hydrothermal vents and hot springs.

Plants, as photoautotrophs, are essential for ecosystems because they are the primary producers. They convert light energy into chemical energy, which forms the basis of the food web by feeding consumers or other consumers in the chain. Moreover, the oxygen generated during photosynthesis is vital for the survival of aerobic life forms.

Answer 2

A

Step-by-step explanation:

because they can make their own energy making light