Which of the following might be affected by the loss of a plant species?

The entire food chain could be affected because the grasshoppers have nothing to eat then the birds have nothing to eat cause the grasshoppers have nothing to eat and so on

Mitochondria produce atp, a high energy compound. atp is used for all sorts of enzyme-mediated reactions, such as making proteins/nucleotides/etc, certain compounds cross the cell membrane, muscles move, etc.  without this source of energy, a cell will die. it will not be able to repair itself, defend against pathogens, etc.

It is maybe photosnyethsis