A 40-year-old woman comes to her primary care physician complaining of nervousness and an unexplained weight loss of 20 pounds over the past 3 months despite her impression that  she is eating all the time. On physical examination, her eyes are  found to be protruding, her skin is moist and warm, and her fingers have a slight tremor. Compared to a normal individual, a biopsy of her thyroid gland would most likely reveal which of the following:

TLS Online TPP Program

#Question id: 32353

#Unit 1. Molecules and their Interaction Relevant to Biology

The principal form in the brain of Hexokinase is 

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