Question

1. chemical energy conversion within a plant cell would be limited most severely by the removal of the cells - endoplasmic reticulum ribosomes mitochondria chloroplasts

Explanation:

Mitochondria are the power - houses of the cell, responsible for cellular respiration which converts chemical energy (in the form of glucose) into ATP. Chloroplasts are mainly for photosynthesis which converts light energy into chemical energy. Endoplasmic reticulum is involved in protein and lipid synthesis, and ribosomes are for protein synthesis. Since the question is about chemical energy conversion, mitochondria are key for general chemical energy conversion in the cell through respiration.

Answer:

C. mitochondria