Question

Both plants and animals take in carbon from the environment. During photosynthesis, plants take in carbon dioxide (CO2) from the air. They use CO2 and energy from the Sun to make glucose. Plants use glucose as food and as a building block for all of their cells. When an animal eats a plant, carbon in the plant becomes part of the animal's body. Select the true sentences.

Answer 1

All of them are true.

- Both plants and animals obtain carbon from their environment (plants from air/soil, animals from food).
- During photosynthesis plants take in CO2 from the air.
- Plants use CO2 plus sunlight energy to synthesize glucose.
- Plants use glucose for energy and as carbon building blocks for cells (cellulose, starch, proteins, lipids).
- When an animal eats a plant, the plant’s carbon is incorporated into the animal’s molecules and tissues.