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TLS Online TPP Program

#Question id: 40232

In SDS-PAGE, which of the following reagents is specifically responsible for unfolding the tertiary structure of proteins by coating them with a uniform negative charge?

#Applied Microbiology
  1. beta-mercaptoethanol
  2. Sodium Dodecyl Sulfate (SDS)
  3. Bromophenol Blue
  4.  TEMED
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TLS Online TPP Program

#Question id: 40180

#Applied Microbiology

Match the metabolic process in Column I with its correct characteristic or location in Column II.

Column IColumn II
A. Glycolysis1. Generates ATP via Oxidative Phosphorylation using oxygen as the final acceptor.
B. Krebs Cycle (Citric Acid Cycle)2. Occurs in the Cytoplasm; produces ATP via Substrate-level phosphorylation.
C. Electron Transport Chain3. Occurs in the Mitochondrial Matrix; produces GTP/ATP via Substrate-level phosphorylation.
TLS Online TPP Program

#Question id: 40181

#Applied Microbiology

Read the following statements regarding ATP synthesis and choose the correct option.

Statement I: During substrate-level phosphorylation, ATP is synthesized directly from energy-rich metabolic intermediates.

Statement II: The enzyme ATP synthase is required for substrate-level phosphorylation to occur.
TLS Online TPP Program

#Question id: 40182

#Environmental Science

Which discontinuity separates the Earth's crust from the mantle?
TLS Online TPP Program

#Question id: 40183

#Applied Microbiology

Which of the following components is unique to the cell wall of Gram-positive bacteria and is responsible for its negative charge?
TLS Online TPP Program

#Question id: 40184

#Applied Microbiology

Choose the correct option regarding the bacterial cell wall.

Assertion (A): N-acetylmuramic acid (NAM) is a crucial component of the bacterial cell wall found in both Gram-positive and Gram-negative bacteria.

Reason (R): NAM residues serve as the attachment point for the peptide chains that cross-link the peptidoglycan layers. 
TLS Online TPP Program

#Question id: 40185

#Applied Microbiology

Read the following statements regarding the bacterial cell envelope:

Statement I: The outer membrane of Gram-negative bacteria contains Lipopolysaccharides (LPS), which consists of Lipid A, Core polysaccharide, and O-antigen.

Statement II: Lysozyme breaks down the bacterial cell wall by cleaving the glycosidic bond between Lipid A and the Core polysaccharide.