Practice Questions

TLS Online TPP Program

#Question id: 180

Which of the following statements about aromatic amino acids is correct?

#Unit 1. Molecules and their Interaction Relevant to Biology

All are strongly hydrophilic.
Histidine’s ring structure results in its being categorized as aromatic or basic, depending on pH.
On a molar basis, tryptophan absorbs more ultraviolet light than tyrosine.
The major contribution to the characteristic absorption of light at 280 nm by proteins is the phenylalanine R group.

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TLS Online TPP Program

#Question id: 1887

#Unit 4. Cell Communication and Cell Signaling

Chronic granuloma represents an attempt by the body to:

TLS Online TPP Program

#Question id: 1177

#Unit 4. Cell Communication and Cell Signaling

Binding of hormone to a receptor tyrosine kinase causes all of the following, except:

TLS Online TPP Program

#Question id: 2101

#Unit 2. Cellular Organization

The enzyme in cholesterol biosynthesis subject to feedback inhibition is

TLS Online TPP Program

#Question id: 5180

#General Aptitude

Consider the set of numbers (17¹,17²,17³,...............................17³⁰⁰)How many of these numbers end with digite3 ?

TLS Online TPP Program

#Question id: 28084

#Unit 6. System Physiology – Plant

Some of the following statements are given regarding the different state of species based on their electronic configuration and technique associated with them

(a) Singlet electron - diamagnetic species

(b) Singlet electron - paramagnetic species

(c) Triplet electron - diamagnetic species

(d) Triplet electron - paramagnetic species

(e) These transition para-dia or dia-para can be analysed by EPR

Which of the following is correct