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TLS Online TPP Program

#Question id: 2237

Glucose enters erythrocytes via a GLUT-1 uniporter. As the levels of glucose in the bloodstream decrease between meals, what happens to the glucose in the cells?

#Unit 2. Cellular Organization

  1. Glucose leaves the cell through the GLUT-1 uniporter, traveling down the new concentration gradient.

  2. Glucose remains in the cell because uniporters can only transport in one direction.

  3. Glucose remains in the cell because the GLUT-1 uniporters are gated and the gates close at low glucose concentrations.

  4. Glucose remains in the cell because it has been phosphorylated and no longer has affinity for the GLUT-1 uniporter.

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TLS Online TPP Program

#Question id: 13203

#Unit 6. System Physiology – Plant

Intermediary cells are specialized companion cells that are involved in phloem loading in the plant. Which of the following pathway that have included the intermediary-type companion cells?
TLS Online TPP Program

#Question id: 14754

#Unit 6. System Physiology – Plant

Plant cells have several internal compartments, each of which can differ in its ionic composition. The cytosol and the vacuole are the most important intracellular compartments that determine the ionic relations of plant cells, Ion concentrations in the cytosol and the vacuole are controlled by passive (dashed arrows) and active (solid arrows) transport processes
  

Which of the following statement INCORRECT from the above figure;
TLS Online TPP Program

#Question id: 10887

#Unit 10. Ecological Principles

What is a linkage density of community A and B RESPECTIVELY?
TLS Online TPP Program

#Question id: 13051

#Unit 13. Methods in Biology

Initiation of translation in higher eukaryotic organisms depends on a specific sequence of nucleotides surrounding the start (AUG) codon in the mRNA called……..
TLS Online TPP Program

#Question id: 7173

#Unit 5. Developmental Biology

Normally, the FgfR3 protein (a receptor tyrosine kinase) is activated by a fibroblast growth factor and signals the chondrocytes to stop dividing and begin differentiating into cartilage. This signal is mediated by the Stat protein, which is phosphorylated by activated FgfR3 and then translocated into the nucleus. Inside the nucleus, Stat activates the genes encoding a cell cycle inhibitor, the p21 protein. The mutation in FgfR3 causes the lethal condition thanatophoric dysplasia. This condition may be achieved by:

A. Mutations in the extracellular domain of the FgfR3 protein

B. Mutations in the tyrosine kinase intracellular domain of the FgfR3 protein

C. Mutations in the transmembrane domain of the FgfR3 protein

Which of the following is correct?