Name the following: (a)It digests carbohydrates, proteins and fats in the small intestine. (b) It transports the nutrients from the undigested food to every cell of the body. (c) It breaks down starch into sugar in the mouth. (d) It produces bile juice. (e) It secretes pepsin. (f) They are building blocks of proteins. (g) It protects the lining of the stomach. (h) It secretes pancreatic juice. 2. Write a short note on structure and feeding in amoeba . 3.What are villi? What is their location and function?
Answers
Answer:
(a) pepsin and trypsin
(b) blood
(c) salivary amylase
(d) liver
(e) pancreas
(f) amino acid
(g) hydrochloric acid
(h) pancreas
Answer:
(a) Your pancreas produces enzymes that break down fats, carbohydrates, and proteins. Your liver produces bile that helps you digest fats and certain vitamins. This bile is stored in the gallbladder.
(b) Blood transports the nutrients from the digested food to every cell of the body. It takes from the small intestine.
(c) Saliva contains the enzyme, salivary amylase. This enzyme breaks the bonds between the monomeric sugar units of disaccharides, oligosaccharides, and starches. The salivary amylase breaks down amylose and amylopectin into smaller chains of glucose, called dextrins and maltose
(d)In humans, bile is produced continuously by the liver.
(e)The enzyme pepsin is secreted by the gastric lining of the stomach.or pepsinogen.
(f)amino acids
(g)epithelial cells
(h)Pancreatic Amylase
2. Amoeba moves by producing finger like projections called pseudopodia. The pseudopodia are also used to capture food particles, which are then placed inside the food vacuole. Amoeba respires by exchanging gases with the surrounding water through its surface by diffusion.
3. Villi are small finger-like projections located in the walls of the small intestine. Their function is to increase the surface area in order to maximise the absorption of digested food.