Answer:
Option D
Explanation:
If an aspartic acid were present in the interior of a globular protein, it would most likely change the conformation of the protein, maybe changing its shape and ultimately its function. To ensure compactness of the interior, hydrophobic amino acid are mainly found in the interior of globular proteins. This acid can be deprotonated and become negatively charged if the surrounding solution's pH is raised changing their isoelectric points.
From this we can conclude that the human digestive system does not produce enzymes that can break down cellulose. The correct option among all the options that are given in the question is the fourth option or the last option. I hope that this is the answer that has come to your desired help.
Binary fission occurs in single-celled organisms only and mitosis is just one cell dividing into two (eukaroytic cells)