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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 -0.30V 

  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: 13201

#Unit 6. System Physiology – Plant

Phloem loading in the apoplastic pathway thought to mediate the transport of sucrose from the apoplast into the sieve element– companion cell complex. Which of the following  are involved in such sucrose transporting by apoplast?
a) Sucrose is at a higher concentration in the sieve element–companion cell complex indicates that sucrose is actively transported against its chemical-potential gradient
b) Sugars transport from the apoplast into the sieve elements and companion cells energy driven process
c) Phloem loading in the apoplastic pathway involves a sucrose–H+ symporter
d) the route of phloem loading is−mesophyll cells→ bundle sheath cells→ phloem parenchyma cell→ ordinary companion cell→ sieve elements
Which of the following is incorrect?
TLS Online TPP Program

#Question id: 1395

#Unit 4. Cell Communication and Cell Signaling

Which of the following mutations would promote malignancy in cells whose proliferation is inhibited by TGFβ?

a. overexpression of Smad2               

b. loss of Smad 4

c. overexpression of TGFβ receptor I

d. loss of TGFβ receptor II
TLS Online TPP Program

#Question id: 228

#Unit 1. Molecules and their Interaction Relevant to Biology

What is the prosthetic group of the retinal vision protein rhodopsin?
TLS Online TPP Program

#Question id: 19698

#Unit 13. Methods in Biology

What is the configuration of limb lead III during ECG recording?
TLS Online TPP Program

#Question id: 787

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following statement is INCORRECT with respect to the structure of DNA?