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TLS Online TPP Program

#Question id: 290

Which of the following is a TRUE statement about ionic bonds in protein structure:

#SCPH28 | Zoology

  1. Ionic bonds on the external surface of the folded protein are more stable than those buried in the protein interior.

  2. In an ionic bond, a hydrogen atom carrying a partial positive charge on the electronegative atom of one covalent bond interacts with the partial negative charge of an electronegative atom of a second polar covalent bond.

  3. Ionic bonds can only form between acidic and basic polar charged amino acid R groups in a specific pH range.

  4. Ionic bonds only exist in inorganic molecules.

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TLS Online TPP Program

#Question id: 12724

#SCPH05 I Biotechnology

In response to sudden, 5 to 10°C rises in temperature, plants produce a unique set of proteins referred to as heat shock proteins (HSPs). There are five classes of heat shock proteins found in plants such as;

       HSP class

 Examples (Arabidopsis / prokaryotic)

      Cellular location

 

I) HSP100

 

 

a) AtTCP-1 / GroEL, GroES

 

i) Cytosol

 

II) HSP90

 

 

b) Various AtHSP22, AtHSP20, AtHSP18.2, AtHSP17.6 / IBPA/B

 

ii) mitochondria

 

III) HSP70

 

 

c) AtHSP101 / ClpB, ClpA/C

 

iii) chloroplasts

 

IV) HSP60

 

 

d) AtHSP70 / DnaK

 

iv) endoplasmic reticulum

 

V) smHSP

 

 

e) AtHSP90 / HtpG

 

Match the following HSPs   with their correct location and the examples of the HSPs;
TLS Online TPP Program

#Question id: 17205

#SCPH01 Biochemistry

While scanning for similarity in motifs, how regular expressions techniques work?
TLS Online TPP Program

#Question id: 2951

#SCPH05 I Biotechnology

Liver cells are highly specialized, but when the liver is damaged or parts of it are removed surgically, the tissue grows. Liver cells fall into which category of cells?
TLS Online TPP Program

#Question id: 14781

#SCPH06 I Botany

A pack of cards contains 4 aces, 4 queens and 4 jacks. Two cards are drawn at random. The probability that at least one of them is an ace is
TLS Online TPP Program

#Question id: 3682

#SCPH05 I Biotechnology

A mutated strain of E. coli replicates DNA normally at 25°C, but replication stops immediately when the temperature is raised to 37°C. Which protein is likely to be non-functional at the higher temperature?