All of the following contribute to the large, negative, free-energy change upon hydrolysis of “high-energy” compounds except:

TLS Online TPP Program

#Question id: 32354

#Unit 1. Molecules and their Interaction Relevant to Biology

In Glucokinase-driven glycolysis

1. ATP/ADP ratio which results in 

2. K⁺ channel opening 

3.  opening of Ca²⁺ channels 

4. secretion of insulin by the b-cells. 

In this way, the action of glucokinase in the b-cells results in glucose uptake.

Choose correct combination of true & false

TLS Online TPP Program

#Question id: 32355

#Unit 1. Molecules and their Interaction Relevant to Biology

Glucose 6-phosphate allosterically inhibits

A) hexokinase I

B) glucokinase

C) hexokinase II

TLS Online TPP Program

#Question id: 32356

#Unit 1. Molecules and their Interaction Relevant to Biology

For given plot of hexokinase

 

a. i is representing Hexokinases IV

b. ii is representing Hexokinases I, II, and III

c. i is representing Hexokinases I, II, and III

d. ii is representing Hexokinases IV

Choose the correct option

TLS Online TPP Program

#Question id: 32357

#Unit 1. Molecules and their Interaction Relevant to Biology

There are two classes of aldolases such as;

A) Class I aldolases B) Class II aldolases

i) Found in animals and plants

ii) Found in fungi and bacteria

iii) formation of protonated Schiff base on enzyme and its active site contain lysine residue

iv) do not form the Schiff base intermediate and a zinc ion at the active site is coordinated with the carbonyl oxygen at C-2

In which of the following option is the given enzyme with its correct statements?

TLS Online TPP Program

#Question id: 32358

#Unit 1. Molecules and their Interaction Relevant to Biology

The first reaction in glycolysis that results in the formation of an energy-rich compound (i.e., a compound whose hydrolysis has a highly negative DG'°) is catalyzed by

TLS Online TPP Program

#Question id: 32359

#Unit 1. Molecules and their Interaction Relevant to Biology

Column I (Terms)	Column II (Match)
A. Hexokinase	1. Competitive inhibitor
B. Succinate dehydrogenase	2. Glycolysis enzyme
C. Malonate	3. TCA cycle enzyme
D. ATP synthase	4. Oxidative phosphorylation