Question

G. Answer the following questions:
1. How does animal nutrition differ from plant nutrition?
2. What are the functions of the tongue?
3. How is food digested in grass-eating animals?
5. Draw a neat, well labeled diagram of the human digestive system.
4. How does amoeba obtain its nutrients?
6. How does hydra obtain its nutrients?
7. How does digested food get absorbed?
8. What is rumination? Explain with an example,
9. What is the role of the stomach in the digestive process?
10. What happens to the food in the small intestine?​

Answer 1

Explanation:

1. The basic difference between animal and plant nutrition is that animals are heterotropic organisms that is that derive their nutrition from green plants. While as plants are autotrophic as they synthesise their own food with the help of sunlight and the inorganic material like to carbon dioxide in atmosphere.
2. functions as a digestive organ by facilitating the movement of food during mastication and assisting swallowing. Other important functions include speech and taste. The tongue consists of striated muscle and occupies the floor of the mouth.
3. Grass eating animals are known as ruminants. ... The process where cud returns to the mouth in small lumps for ruminants to chew is called rumination. Rumination is aided by bacteria present in the rumen which breaks down cellulose in plants. The digested food is then passed to the reticulum.
4. Amoeba Obtain Its Food By
5. Amoeba envelops its food through the process of endocytosis or phagocytosis, where pseudopodia is created by flexibility of the plasma membrane. ... Amoeba takes in food using temporary finger-like extensions of the cell surface which fuse over the food particle forming a food-vacuole.
6. Hydra capture their food by paralyzing and killing the food organism by means of nematocysts, which are discharged into the prey. The prey is brought to the mouth (proctostome) by the tentacles, a response that is induced glutathione. ... The organism is then taken in through the mouth, which is star-shaped or circular.
7. The small intestine absorbs most digested food molecules, as well as water and minerals, and passes them on to other parts of the body for storage or further chemical change. Specialized cells help absorbed materials cross the intestinal lining into the bloodstream.
8. Regurgitating food after a meal and then swallowing and digesting some of it. Cattle and other ruminant animals have a four-chambered stomach for the rumination of food and so can chew their cud.
9. Stomach. The stomach is a hollow organ, or "container," that holds food while it is being mixed with stomach enzymes. These enzymes continue the process of breaking down food into a usable form. Cells in the lining of the stomach secrete a strong acid and powerful enzymes that are responsible for the breakdown process.
10. The small intestine absorbs most of the nutrients in your food, and your circulatory system passes them on to other parts of your body to store or use. Special cells help absorbed nutrients cross the intestinal lining into your bloodstream.