Question

which of the following statements about the autotrophs is incorrect?
a) they store carbohydrates in the from of starch
b) they constitute the first trophic level in food chains
c) they convert co2 and water into carbohybrates in the absence of sunlight
d) they synthesize carbohydrates from co2 and water in the presence of sunligth & chlorophyll

Answer 1

option.c

They make food in the presence of sunlight not in its absence.

hope it helps you.

Answer 2

Answer

Option c

Explanation

An autotroph is an organism that serves as a primary producer and this occupies the first trophic level in food chains. They take carbon dioxide and water from the environment and convert them the energy-rich carbohydrates (starch) with the help of sunlight (usually called photoautotrophs) and release oxygen. This happens in the chloroplast of the cells which have chlorophyll pigment that absorbs the sun's energy. Thus, the correct answer is option C.