TLS Online TPP Program

#Question id: 12080


A 55-year-old man has developed the syndrome of inappropriate antidiuretic hormone secretion due to carcinoma of the lung. Which of the following physiological responses would be expected?

#Unit 7. System Physiology – Animal
  1. Increased plasma osmolality
  2. Inappropriately low urine osmolality (relative to plasma osmolality)
  3. Increased thirst
  4. Decreased secretion of antidiuretic hormone from the pituitary gland

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TLS Online TPP Program

#Question id: 28749

#Unit 2. Cellular Organization

Sugars provide quick energy for seed germination by converting fats into sugar molecules is accomplished by a series of reactions this conversion is present in___

TLS Online TPP Program

#Question id: 10308

#Unit 6. System Physiology – Plant

Oxidative decarboxylation of pyruvate to acetyl-CoA by the PDH complex, how the pyruvate dehydrogenase complex carries out the five consecutive reactions in the decarboxylation and dehydrogenation of pyruvate?

 A) Pyruvate reacts with the bound thiamine pyrophosphate (TPP) of pyruvate dehydrogenase, undergoing decarboxylation to the hydroxyethyl derivative

 B) A transesterification in which the —SH group of CoA replaces the —SH group of E2 to yield acetyl-CoA and the fully reduced (dithiol) form of the lipoyl group

 C) The reduced FADH2 of E3 transfers a hydride ion to NAD1 , forming NADH, the enzyme complex is now ready for another catalytic cycle

 D) The transfer of two electrons and the acetyl group from TPP to the oxidized form of the lipoyllysyl group of the core enzyme, dihydrolipoyl transacetylase, to form the acetyl thioester of the reduced lipoyl group

 E) Dihydrolipoyl dehydrogenase promotes transfer of two hydrogen atoms from the reduced lipoyl groups of E2 to the FAD prosthetic group of E3 , restoring the oxidized form of the lipoyllysyl group of E2

 Find out the correct sequence of action of this complex enzyme?

TLS Online TPP Program

#Question id: 32267

#Unit 2. Cellular Organization

Which of the following transport step is not performed by coated vesicles? 

TLS Online TPP Program

#Question id: 6558

#General Aptitude

What is the next term in the following sequence 5,7,11,13,17,19,23,29,...

TLS Online TPP Program

#Question id: 20410

#Unit 3. Fundamental Processes

A mutation that confers a more advantageous phenotype to an organism, relative to Individuals in the same population without the mutation, is called