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TLS Online TPP Program

#Question id: 626

A metabolic pathway proceeds according to the scheme, R -> S -> T -> U -> V -> W.  A regulatory enzyme, X, catalyzes the first reaction in the pathway.  Which of the following is most likely correct for this pathway?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. Either metabolite U or V is likely to be a positive modulator, increasing the activity of X.

  2. The first product S, is probably the primary negative modulator of X, leading to feedback inhibition.

  3. The last product, W, is likely to be a negative modulator of X, leading to feedback inhibition.

  4. The last product, W, is likely to be a positive modulator, increasing the activity of X.

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TLS Online TPP Program

#Question id: 15764

#Unit 5. Developmental Biology

An alternative (but not mutually exclusive) mode of retaining cell homeostasis is the:
A. Asymmetric mode of stem cell division
B. Symmetric mode of stem cell division.
C. Single stem cell asymmetry mode of stem cell division
D. Population asymmetry mode of stem cell division.
TLS Online TPP Program

#Question id: 12973

#Unit 10. Ecological Principles

The oceans affect the biosphere in all of the following ways except 
TLS Online TPP Program

#Question id: 96

#Unit 1. Molecules and their Interaction Relevant to Biology

A reducing sugar is one that
TLS Online TPP Program

#Question id: 731

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following structure is mentioned in the given Ramachandran plot
TLS Online TPP Program

#Question id: 2273

#Unit 2. Cellular Organization

The bacterial cell wall is composed of