Question

which of the following statements is the correct distinction between autotrophs and heterotrophs?
autotrophs, but not heterotrophs, can nourish themselves beginning with co2 and other nutrients that are inorganic
only heterotorphs require chemical compunds from the environment
cellular respiration is unique to heterotrophs
only heterotrophs have mitochondria

Explanation:

Autotrophs, like plants, can produce their own food using inorganic substances such as \(CO_2\) through processes like photosynthesis. Heterotrophs, such as animals, cannot produce their own food from inorganic substances and must consume organic matter.

• For the second option: Both autotrophs and heterotrophs require chemical compounds from the environment. Autotrophs take in \(CO_2\), water, minerals etc., and heterotrophs take in organic food.
• For the third option: Cellular respiration occurs in both autotrophs and heterotrophs. It is the process by which cells break down organic molecules to release energy.
• For the fourth option: Both autotrophs (e.g., plant cells which are eukaryotic and have mitochondria) and heterotrophs (e.g., animal cells) have mitochondria (except for some very simple organisms in both groups, but in general eukaryotic autotrophs and heterotrophs have mitochondria).

Answer:

autotrophs, but not heterotrophs, can nourish themselves beginning with \(CO_2\) and other nutrients that are inorganic.