Which of these are possible components of glycosaminoglycans?

a) amylose uronic acid

b) β‑d‑fructofuranose

c)n‑acetylgalactosamine

determine which statements about glycosaminoglycans are true:

1.chondroitin sulfate and heparin are examples of glycosaminoglycans. because glycosaminoglycans consist of only two residues, they generally have low molecular weights.

2.glycosaminoglycans contain a high negative charge density, which enables interaction with the aqueous environment.

3.cellulose is an example of a glycosaminoglycan.

4.glycosaminoglycans are homopolysaccharides composed of repeating glucosamine or galactosamine residues.

the components of glycosaminoglycans is N- acetylgalactosamine option C.

The correct statement about glycosaminoglycans is that it contains a high negative charge density which enables interaction with the aqueous environment.

Explanation:

The repeating disaccharide units of Glycosaminoglycans consist of N- acetylgalactosamine and uronic sugar.

Glycosaminoglycans are highly polar and attract water; they are therefore useful to the body as a lubricant or as a shock absorber.

The correct answer is -

Mitochondria produce energy from food, while chloroplasts produce food from the Sun’s energy.

Mitochondria is a specialised membrane bound organelle that is present in the eukaryotes (such as plant and animals) and it is considered as the power house of the cells. It helps in the generation of large amount of energy in the form of ATP (adenosine triphosphate) through cellular respiration (that depicts complete oxidation of food, such as glucose).

Chloroplast is a membrane bound organelle, which is present in the photosynthetic organsisms such as green plants and algae. It is the site for photosynthesis, which is a process of formation of food using sunlight in the presence of carbon dioxide and water.

Thus, second option is the right answer.