Question

explain why we cannot make food ourself by photosynthesis like the plant to

Answer 1

body cells lack one cell organelle which is present in plants, that is, chloroplast. Chloroplast contains a pigment called chlorophyll which is necessary for the photosynthetic reactions to take place. ... So, these are various reasons why we cannot photosynthesize like plants but depend upon them for food.

Answer 2

Bcoz we don't take have chlorophyll and chloroplast.
We don't intake Carbon Dioxide gas used in the process of photosynthesis instead we intake Oxygen which is released during the photosynthesis.
We do have a digestive system for the digestion of food but plants do have a food factory where in they prepare their food.
So, in simple u can conclude that we don't the body structure as same as plant and we don't have those parts in our body which are used for photosynthesis so we can't make food by ourselves by photosynthesis.