Question

What do these two changes have in common? Cellular respiration, saliva breaking down a piece of bread.

A) Both involve enzymatic digestion
B) Both release energy
C) Both are anaerobic processes
D) Both result in the production of carbon dioxide

Answer 1

Both cellular respiration and the action of saliva on bread involve enzymatic digestion, which is the process of enzymes breaking down complex molecules into simpler ones.

Step-by-step explanation:

The common aspect between cellular respiration and saliva breaking down a piece of bread is that both involve enzymatic digestion. In cellular respiration, enzymes are involved in reactions that break down glucose in the presence of oxygen to produce carbon dioxide, water, and energy. Similarly, when saliva digests bread, the enzyme salivary amylase breaks down starch, a carbohydrate, into simpler sugars like maltose and ultimately glucose. This process is also enzymatic digestion. Therefore, the shared factor between these two changes is enzymatic digestion (Option A).