Thursday, 7 January 2016

Freshers Economic Botany Interview Questions and Answers pdf

6. What are living and nonliving reservoirs?
Viruses are both living as well as non-living. They have reservoirs of genes. A single nucleotide is a unit of gene. Viral genes make use of host raw material (non-living elements/organic moieties/ water etc.,) including elements to synthesize organic molecules or macromolecules. Subsequently, viruses replicate themselves thereby reproduce within the living cells. On crystallization, they become non-living and can stay in this state for years until they enter again into a living host to multiply. Certain plant viruses are transmitted to the progeny through seeds. Viruses evolve as any other living being. Therefore, now virus names are written in italics like binomial/trinomial names similar to scientific name of any other living organism i.e. Tobacco mosaicvirus (read as italic).

7. What are analogies for centrioles?
A Centriole is like a straw because they both are tubesthat let things get from one end to the other end.
The centriole has a round look to it because it is made from nine triplets of microtubules that make a straw-like (as said above) look.

8. What is an analogy for a smooth endoplasmic reticulum?
Endoplasmic reticulum (ER) is like a manufacturing plant, like a factory, where proteins and lipids are made. This is also where things are packaged into boxed and sent off to different places. In the cell the smooth ER is a network of membrane bound bodies which lack ribosomes (the molecules used in protein synthesis) and its primary function is to modify, encapsulate and transport newly synthesized proteins and lipids which will be secreted or remain in the cytoplasm as membrane bound vesicles. The smooth ER can also be compared to a highway, or a protein and lipid highway, if you will. It is sometimes called the transitional ER because it contains exit sites from which transport vesicles carrying these proteins and lipids bud off for transport to the Golgi apparatus. It is usually prominent in cells that specialize in lipidmetabolism and synthesis.

9. Why do organisms live in certain places?
Think of that, the temperature difference in the desert is huge. So in order to survive, the cactus plant reduces heat gain and heat loss as well as water loss. (E.g. narrow pin shaped leaves, long extensive roots)

10. Who created the two-part naming system used in biology?
The scientific naming system that is used worldwide today was first devised by Swedish naturalist Carl Linnaeus in 1737. He proposed a two-part naming system, which classifies every living organism with a string of Latin and Greek identifiers. Full names are devised starting with kingdom and extending downward through phylum, subphylum, class, order, family, genus and species. The two-part name, or binomial name, consists of the genus and species of the organism and used to prevent the confusion that may arise with common names.

More Questions & Answers:-
Page1 Page2 Page3

No comments:

Post a Comment