Why do plants need to carry out respiration and photosynthesis?

Answer 1

They need photosynthesis(1) and Respiration(2) because

(1) They make use of carbon dioxide and sunlight to make glucose(sugar(food)). Excess glucose is stach and it is like our fats

(2) Respiration is needed for breaking down glucose/starch for food.

(1)-> CO2,light&water--------Photosynthesis------->O2&glucose

(2)-> O2------------Respiration---------->CO2

Oxygen->O2

Crabon dioxide->CO2

Answer 2

Plants respire because they need to breath to!

Respiration is pretty much to breath.

Photosynthesis is the process of the plant making food.

Plants are producers which means they make there own food.

In photosynthesis, plants require: Sunlight, CO2, and Chlorophyll.

Hope I helped!

Answer 3

using oxygen when burning/digesting sugar produces 36 ATP molecules but without oxygen you only get 2-3.

Answer 4

Yes. Respire is another word for breathe, but when we are talking about plants and other living things, the correct term is respire.

Answer 5

to release energy

Answer 6

to live