TLS Online TPP Program

#Question id: 11205


What would probably happen if a long neuron had one continuous myelin sheath down the length of the axon with no nodes of Ranvier?

#Unit 7. System Physiology – Animal
  1. The action potential would be propagated nearly instantaneously to the synapse.
  2. There could be no action potential generated at the axon hillock.
  3. The signal would fade because it is not renewed by the opening of more sodium channels.

  4. Only potassium could move across the membrane, but not sodium.
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TLS Online TPP Program

#Question id: 33431

#Unit 1. Molecules and their Interaction Relevant to Biology

Under standard conditions, the energy recovered as the phosphate bond energy of ATP

TLS Online TPP Program

#Question id: 28856

#Unit 2. Cellular Organization

The main families of motor proteins mediate transport along microtubules Kinesin-1 which is similar to myosin II that contain various domains such as
I) Head domain
II) Stalk domain
III) Tail domain
a) forms a long coiled-coil
b) at the C-terminus that attaches to cargo
c) at the N-terminus of the heavy chain
d) at the C-terminus of the heavy chain

Correctly match the following domains with given characters;

TLS Online TPP Program

#Question id: 20279

#Unit 7. System Physiology – Animal

Which one of the following statements is true with regard to Growth Hormone Secretion?
a. Growth hormone is secreted in a pulsatile pattern.
b. Growth hormone secretory rates are constant over a lifetime.
c. After puberty, the rate of growth hormone secretion declines to a stable level.
d. The highest rates of growth hormone secretion occur during puberty, and the lowest rates occur in senescence.
Which of the following is the correct combination of the statements given above?

TLS Online TPP Program

#Question id: 1236

#Unit 4. Cell Communication and Cell Signaling

Arrange the following events in the proper order in which they occur during transduction of the TNF-α signal

a. phosphorylation of I-κB                 

b. binding of E3 ubiquitin ligase to I-κB       

c. polyubiquitination of I-κB             

d. nuclear localization of NF-κB       

e. activation of TAK1 kinase

TLS Online TPP Program

#Question id: 27978

#Unit 1. Molecules and their Interaction Relevant to Biology

Alternative oxidase are characteristically found in plant responsible for the