Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 1191
TLS Online TPP Program

#Question id: 1216

In yeast signal transduction, a yeast cell releases a mating factor, which:

#Unit 4. Cell Communication and Cell Signaling

  1. acts back on the same cell that secreted the mating factor, changing its development

  2. passes through the membranes of neighboring cells, binds to DNA, and initiates transcription

  3. binds to receptors on the membranes of other types of yeast cells

  4. diffuses through the membranes of distant cells, causing them to produce factors that initiate long-distance migrations

More Questions
TLS Online TPP Program

#Question id: 11488

#Unit 1. Molecules and their Interaction Relevant to Biology

If approximately 415 kJ/mol of energy is being used to break a bond in a monosaccharide molecule then

A. That monosaccharide is undergoing conformational change

B. That monosaccharide is undergoing configurational change

C. That monosaccharide is undergoing mutarotation to change into other form

D. That monosaccharide is undergoing epimerisation to change into other form

Which of the above statements is/are correct for a molecule to change with an expense of that much of energy?
TLS Online TPP Program

#Question id: 11489

#Unit 1. Molecules and their Interaction Relevant to Biology

Why Trehalose does cannot get oxidized at its anomeric carbon
TLS Online TPP Program

#Question id: 11490

#Unit 2. Cellular Organization

Valinomycin, which is one of the best characterized ionophores, specifically transports
TLS Online TPP Program

#Question id: 11491

#Unit 2. Cellular Organization

What is the “signature sequence” that is highly conserved in all K+ channels?
TLS Online TPP Program

#Question id: 11492

#Unit 2. Cellular Organization

Which of the following integral membrane protein transport chemotherapeutic drug out of the cell and prevents their accumulation within a tumor and thus blocks their therapeutic effects?
TLS Online TPP Program

#Question id: 11493

#Unit 2. Cellular Organization

Which of the following membrane protein form channel, in the form of gap junctions between cells?