TLS Online TPP Program

#Question id: 605


Which statement is false about allosteric regulation?

#SCPH05 I Biotechnology
  1. It is usually the mode of regulation for the last step in reaction pathways since this step produces the final product.

  2. Cellular response is faster with allosteric control than by controlling enzyme concentration in the cell.

  3. The regulation usually is important to the conservation of energy and materials in cells.

  4. Allosteric modulators bind non-covalently at sites other than the active site and induce conformational changes in the enzyme.

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TLS Online TPP Program

#Question id: 10807

#SCPH05 I Biotechnology

Cyanogenic Glycosides and Glucosinolates are nitrogen containing secondary metabolites in plants. Following are some statements regarding the action of Cyanogenic Glycosides and Glucosinolates;

a) Cyanogenic Glycosides release the poison hydrogen cyanide by the action of enzyme known as Hydroxynitrile lyase

b) Release of the mustard-smelling volatiles from glucosinolates is catalyzed by a hydrolytic enzyme, called a thioglucosidase or myrosinase

c) substerate for Glycosidase is Cyanogenic glycoside and Thioglucosidase is Aglycone

d) Like cyanogenic glycosides, glucosinolates are stored in the intact plant separately from the enzymes that hydrolyze them, and they are brought into contact with these enzymes only when the plant is crushed

Which of the following combinations of above statement is true?

TLS Online TPP Program

#Question id: 10808

#SCPH05 I Biotechnology

Many plants also contain unusual amino acids, called nonprotein amino acids, these Nonprotein amino acids are often very similar to common protein amino acids. Canavanine, for example, is a close analog of_____A______, and azetidine-2-carboxylic acid has a structure very much like that of_____B________.

TLS Online TPP Program

#Question id: 10809

#I Life Science/ Life Sciences Group – I-V

Sieve element sap is rich in sugars and other organic molecules, These molecules represent an energy investment for the plant. How their loss be prevented when sieve elements are damaged?

TLS Online TPP Program

#Question id: 10809

#SCPH05 I Biotechnology

Sieve element sap is rich in sugars and other organic molecules, These molecules represent an energy investment for the plant. How their loss be prevented when sieve elements are damaged?

TLS Online TPP Program

#Question id: 10809

#SCPH06 I Botany

Sieve element sap is rich in sugars and other organic molecules, These molecules represent an energy investment for the plant. How their loss be prevented when sieve elements are damaged?

TLS Online TPP Program

#Question id: 10811

#I Life Science/ Life Sciences Group – I-V

In mature cells, P-protein occurs in several different forms depending on the species. Such as;