TLS Online TPP Program

#Question id: 124


What is the role of cholesterol in animal cell membranes?

#Zoology
  1. Blocks the association of the fatty acyl chains of phospholipids at high temperature.

  2. Aids in the transport of small hydrophobic molecules across the membrane.

  3. Is a receptor site for hormones on the surface of membranes.

  4. Broadens the temperature range of optimum membrane fluidity.

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TLS Online TPP Program

#Question id: 40176

#Applied Microbiology

The majority of ATP produced in aerobic cellular respiration comes from ________, whereas ________ produces a smaller amount directly from chemical intermediates.

TLS Online TPP Program

#Question id: 40177

#Applied Microbiology

In the Citric Acid Cycle, the conversion of Succinyl-CoA to Succinate yields a molecule of GTP (which is converted to ATP). This is an example of: 

TLS Online TPP Program

#Question id: 40178

#Applied Microbiology

In the following question, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option.

Assertion (A): Substrate-level phosphorylation can occur in the absence of oxygen (anaerobic conditions).

Reason (R): This process relies on the creation of a proton gradient across the mitochondrial membrane to generate ATP.

TLS Online TPP Program

#Question id: 40179

#Environmental Science

 Which mineral is the softest according to the Mohs Hardness Scale?

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.