InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
Carbohydrates are commonly found as starch in plant storage organs. Which of the following five properties of starch (A-E) make it useful as a storage material (A) Easily translocated (B) Chemically non-reactive (C) Easily digested by animals (D) Osmotically inactive (E) Synthesized during photosynthesis The useful proeprties ar :A. B and CB. B and DC. A,C and ED. A and E |
|
Answer» Correct Answer - C Option (c) is correct. As starch is a high molecular weight polymer of D-glucose is `alpha1to4` linkage. It is synthesised in chloroplasts as one of the stable end products of photosynthesis. It is most abundant and common storage polysacharide in plants hence, most staple food for man and herbivores. It is a mixture of two types of glucose homopolysaccharide viz, amylose and amylopectin. During day time the starch synthesis in chloroplst is coordinated with sucrose synthesis in cytose Typically about 90% of total solute carried in phloem is the carbohydrate sucrose, a disaccharide. this is relatively inactive and highly soluble sugar playing little direct role in metabolism and so, making an ideal transport sugar. |
|