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TLS Online TPP Program

#Question id: 108

Like plasmologens, sphingolipids are found in relative abundance in

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. bacteria.

  2. plant cells.

  3. nerve cells.

  4. intestinal cells.

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TLS Online TPP Program

#Question id: 6965

#Unit 5. Developmental Biology

what type of cleavage is used in frog embryos?
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: 11849

#Unit 6. System Physiology – Plant

According to chemiosmotic model for polar auxin transport, auxin _____A_______is driven by the______B________ across the plasma membrane, while auxin ___C_____is driven by the_________D_________
TLS Online TPP Program

#Question id: 1250

#Unit 4. Cell Communication and Cell Signaling

Few mutants (column A) and their results (column B) are listed in the table given below:

Column A

Column B

A. Gain-of-function of Ski

I. Inhibits the ability of activated type I TGF-β receptors (RI) to phosphorylate

R-Smad proteins

B. Loss-of-function of RII receptor

II. Transcription activation induced by TGF-β and mediated by Smad complexes is shut down

C. Gain-of-function of smad-7

D. Loss-of-function of R-smad

Match the correct mutation with the observe result?
TLS Online TPP Program

#Question id: 13171

#Unit 10. Ecological Principles

Imagine some cosmic catastrophe jolts Earth so that its axis is perpendicular to the orbital plane between Earth and the sun. The most obvious effect of this change would be