Fill in the blanks:
a. The main steps of digestion in humans are _____, _______, ______, _______ and ______.
b. The largest gland in the human body is ______.
c. The stomach releases hydrochloric acid and _____ juices which act on food.
d. The inner wall of the small intestine has many finger-like outgrowths called _______.
e. Amoeba digests its food in the _________.
a. Ingestion, digestion, absorption, assimilation and ingestion.
The breakdown of complex food substances into simpler substances is called digestion.
b. Liver.
Liver secretes bile juice that is stored in a sac called gall bladder.
c. Gastric
(Gastric juices or digestive juices breakdown the proteins into simpler substances.)
d. Villi.
The villi increase the surface area for absorption of the digested food.
e. Food vacuole
Digestive juices are secreted into the food vacuole. They act on the food and break it down into simpler substances