TLS Online TPP Program

#Question id: 11473


Lateral inhibition via horizontal cells in the mammalian retina ________.

#Unit 7. System Physiology – Animal
  1. underlies habituation of vision
  2. enhances visual contrast
  3. prevents bleaching in bright light
  4. recycles neurotransmitter molecules
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TLS Online TPP Program

#Question id: 995

#Unit 1. Molecules and their Interaction Relevant to Biology

Saturated fatty acids are degraded by the stepwise  reactions of B oxidation, producing acetyl-CoA. Under aerobic conditions, how many ATP molecules would be produced as a consequence of removal of each acetyl-CoA?

TLS Online TPP Program

#Question id: 12180

#Unit 2. Cellular Organization

Following statements are regarding to cotransport.
A. The two forces constituting the electrochemical gradient—the membrane electric potential and the ion concentration gradient—may act in the same or opposite directions.
B. Cotransporters use the energy released by movement of an ion (usually H+ or Na+) down its electrochemical gradient to power the import or export of a small molecule or different ion against its concentration gradient.
C. Cotransporters use the energy released by movement of an ion (usually H+ or Na+) down its electrochemical gradient to power the import or export of a small molecule or different ion down its concentration gradient.
D. The cells lining the small intestine and kidney tubules contain symporters that couple the energetically favorable entry of Na+ to the import of glucose against its concentration gradient.
Which of the following is incorrect?

TLS Online TPP Program

#Question id: 11772

#Unit 10. Ecological Principles

Which of the following statements correctly describes the relationship between growth and fecundity in an indeterminate organism?

TLS Online TPP Program

#Question id: 16101

#Unit 7. System Physiology – Animal

The set-point temperature of the hypothalamus triggering heat loss or heat generating mechanisms is

TLS Online TPP Program

#Question id: 31139

#Unit 2. Cellular Organization

Plasma membrane proteins such as receptor proteins bound to their ligands can be taken up in vesicles that bud from the plasma membrane, called as: