A student uses iodine to visualize cells under the light microscope. Iodine stains starch deep blue and glycogen granules dark brown.
Observation of the cells reveals the presence of cell walls, dark brown granules, mitochondria, and a prominent nucleus. If the chemical composition of the cell wall is determined, which of the following molecules would MOST likely be the major constituent?
A. Cellulose
B. Chitin
C. Lignin
D. Peptidoglycan
1 answer
A. Cellulose