Question

1.Explain how is small intestine designed to absorb digested food.

2.Write two differences between the nutrition in amoeba and human beings.
3.Fungus can be harmful and useful. Give an example showing both of these traits of fungus.

Answer 1

Similarity:

Amoeba and human beings require the same nutrients like carbohydrates, proteins, and fats for their growth and survival.

Difference:

1. Mode of Nutrition:

Amoeba is unicellular and microscopic, which makes it an organism that uses the Holozoic mode of nutrition. It ingests food through its cell membrane and feeds on other tiny organisms like bacteria, algae, and protozoans. On the other hand, human beings are multicellular organisms and use saprophytic and holozoic modes of nutrition. They ingest complex food materials that are broken down into simpler nutrients.

Answer 2

Digestion is one of the longest process taking place in the human body. The process of digestion involves several steps as well as the organs. It starts with the mouth and ends at the anus. The track is also referred to as alimentary canal. The organs involved in the alimentary canal are mouth, oesophagus, stomach, small intestine and large intestine. Small intestine is one among them and plays a major role. Let us explore the importance of small intestine in digestion of food.