TLS Online TPP Program

#Question id: 11126


Which of the following is characteristic of the events occurring at an excitatory synapse?

#Unit 7. System Physiology – Animal
  1. There is a massive efflux of calcium from the presynaptic terminal
  2. Synaptic vesicles bind to the postsynaptic membrane
  3. Voltage-gated potassium channels are closed
  4. Ligand-gated channels are opened to allow sodium entry into the postsynaptic neuron
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TLS Online TPP Program

#Question id: 463

#Unit 1. Molecules and their Interaction Relevant to Biology

Thioesters are similar to oxygen esters of carboxylic acids except that

TLS Online TPP Program

#Question id: 464

#Unit 1. Molecules and their Interaction Relevant to Biology

Calculate the equilibrium constant for an oxidation-reduction reaction involving the transfer of 1 mole of electrons with DE0ʹ= 0.25 V. (R = 8.315 JK-1mol-1, F = 96.48 kJV-1mol-1, T = 298 K)

TLS Online TPP Program

#Question id: 465

#Unit 1. Molecules and their Interaction Relevant to Biology

If the standard reduction potential of a certain half-reaction is -0.30 V, which statement below is true for this half-reaction to proceed as a reduction?

TLS Online TPP Program

#Question id: 466

#Unit 1. Molecules and their Interaction Relevant to Biology

When a reduction half-reaction is ________ (negative, positive), electrons flow to the more readily reduced substance which is ________ (negative, positive) in value.

TLS Online TPP Program

#Question id: 467

#Unit 1. Molecules and their Interaction Relevant to Biology

The standard potential for electron transfer can be related to the standard free-energy change for redox reactions by using

TLS Online TPP Program

#Question id: 468

#Unit 1. Molecules and their Interaction Relevant to Biology

Glycolysis is the name given to a metabolic pathway occurring in many different cell types.  It consists of 11 enzymatic steps that convert glucose to lactic acid.  Glycolysis is an example of