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TLS Online TPP Program

#Question id: 465

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?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. This half-reaction will proceed if it is coupled to another half-reaction that has a standard reduction potential greater than +0.30 V.

  2. This half-reaction will proceed if it is coupled to another half-reaction that has a standard reduction potential greater than -0.0V 

  3. This half-reaction will proceed if it is coupled to another half-reaction that has a standard reduction potential less than -0.30 V.

  4. It doesnʹt matter what half-reaction this is coupled with, it will proceed spontaneously.

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TLS Online TPP Program

#Question id: 611

#Unit 1. Molecules and their Interaction Relevant to Biology

Which statement is false about the sequential theory of enzyme catalysis?
TLS Online TPP Program

#Question id: 612

#Unit 1. Molecules and their Interaction Relevant to Biology

 The quaternary structure of hemoglobin changes from the T state to the R state ________.
TLS Online TPP Program

#Question id: 613

#Unit 1. Molecules and their Interaction Relevant to Biology

Ethanol (CH3CH2OH) is the alcohol found in beverages. It is oxidized in the body to acetaldehyde by the enzyme alcohol dehydrogenase. Methanol (CH3OH), also known as wood alcohol, is converted to formaldehyde by the same enzyme. Acetaldehyde is toxic, but formaldehyde is far more toxic to humans, which is why the ingestion of relatively small amounts of methanol can cause blindness or death. One treatment for mild methanol poisoning is the administration of ethanol. Why might a doctor choose this treatment?
TLS Online TPP Program

#Question id: 614

#Unit 1. Molecules and their Interaction Relevant to Biology

What type of inhibition is indicated by the data graphed below?
TLS Online TPP Program

#Question id: 615

#Unit 1. Molecules and their Interaction Relevant to Biology

The following data were obtained in the presence and absence of inhibitor. What type of inhibition is shown?
TLS Online TPP Program

#Question id: 616

#Unit 1. Molecules and their Interaction Relevant to Biology

Which equilibrium below applies to noncompetitive inhibition?