Question

Define polysaccharides and give two examples
Differentiate between aerobic and anaerobic respirat​

Answer 1

Answer:

Q1ans-

Polysaccharides are complex biomacromolecules that are made up chains of monosaccharides. The bonds that form these chains are glycosidic bonds. Commonly found monomer units in polysaccharides are glucose, fructose, mannose and galactose which are simple sugars.

Q2 Ans-

The difference between aerobic and anaerobic respiration.

Aerobic respiration:

1. Aerobic respiration refers to complete breakdown of metabolic fuels in presence of oxygen

2.It includes glycolysis, citric acid cycle and oxidative phosphorylation. The first two processes take place in the cytoplasm while last one occurs in mitochondria.

3.The end products are carbon dioxide and water.

4.Owing to complete oxidation of glucose, a large amount of energy is produced (36-38 ATP molecules)

Anaerobic respiration:

1.Anaerobic respiration is the process of partial breakdown of fuel (glucose) in absence of oxygen.

2.Glycolysis is followed by ethanol fermentation (occurs in yeast) or lactic acid fermentation (in muscles and microbes like lactic acid bacteria).

3.End products of ethanol fermentation are ethanol and carbon dioxide; that of lactic acid fermentation are lactic acid.

4.Incomplete oxidation of glucose does not release all stored energy and only 2 ATP molecules are produced.

hope it helps

thanks