The metamorphic changes of frog development are brought about by following events.

(A) the secretion of the hormone thyroxine (T4) into the blood by the thyroid gland

(B) the degradation of T3 in the target tissues

(C) the conversion of (T4) into the more active hormone, triiodothyronine (T3) by the target tissues

Which of the following series is correct?

TLS Online TPP Program

#Question id: 496

#Unit 1. Molecules and their Interaction Relevant to Biology

The metabolic function of the pentose phosphate pathway is:

TLS Online TPP Program

#Question id: 497

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following statements about the pentose phosphate pathway is incorrect?

TLS Online TPP Program

#Question id: 498

#Unit 1. Molecules and their Interaction Relevant to Biology

Glucose breakdown in certain mammalian and bacterial cells can occur by mechanisms other than classic glycolysis.  In most of these, glucose 6-phosphate is oxidized to 6-phosphogluconate, which is then further metabolized by:

TLS Online TPP Program

#Question id: 499

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following enzymes acts in the pentose phosphate pathway?

TLS Online TPP Program

#Question id: 500

#Unit 1. Molecules and their Interaction Relevant to Biology

The oxidation of 3 mol of glucose by the pentose phosphate pathway may result in the production of:

TLS Online TPP Program

#Question id: 501

#Unit 1. Molecules and their Interaction Relevant to Biology

In a tissue that metabolizes glucose via the pentose phosphate pathway, C-1 of glucose would be expected to end up principally in: