AP BIOLOGY

Detailed explanation-1: -Oesophagus is the part of the alimentary canal where no digestion occurs.

Detailed explanation-2: -The correct option is A Cecum Which is the correct sequence of parts in a human alimentary canal?

Detailed explanation-3: -Enterokinase is an activator enzyme which converts the proenzyme trypsinogen into active trypsin, a proteolytic enzyme. Q. If this enzyme were to be absent in our small intestine, digestion of proteins in our body will be severely affected.

Detailed explanation-4: -bolus, food that has been chewed and mixed in the mouth with saliva. Chewing helps to reduce food particles to a size readily swallowed; saliva adds digestive enzymes, water, and mucus that help chemically to reduce food particles, hydrate them for taste, and lubricate them for easy swallowing.