Practice Questions

TLS Online TPP Program

#Question id: 1086

What is the most likely mechanism by which testosterone functions inside a cell?

#Unit 4. Cell Communication and Cell Signaling

It acts as a signal receptor that activates tyrosine kinases.
It binds with a receptor protein that enters the nucleus and activates expression of specific genes.
It acts as a steroid signal receptor that activates ion channel proteins in the plasma membrane.
It coordinates a phosphorylation cascade that reduces spermatogenesis.

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TLS Online TPP Program

#Question id: 29581

#Unit 6. System Physiology – Plant

Coronatine is a toxin effector produced by the bacterium which is

a. Produce by Pseudomonas syringae

b. Mimic the plant hormone jasmonic acid‐isoleucine pathways

c. interfering with salicylic acid (SA)‐mediated defense responses

d. interfering with salicylic acid jasmonic acid‐isoleucine pathways

Which of the following is true

TLS Online TPP Program

#Question id: 29582

#Unit 6. System Physiology – Plant

Quorum sensing in Erwinia carotovora is mediated by

TLS Online TPP Program

#Question id: 29583

#Unit 6. System Physiology – Plant

The specialized bacteria that are obligate parasites of the phloem tissue known as

TLS Online TPP Program

#Question id: 29584

#Unit 6. System Physiology – Plant

Cicadellidae (leaf hoppers), Fulgoroidae (plant hoppers), and Psyllidae (jumping plant lice) act as the vector for

TLS Online TPP Program

#Question id: 29585

#Unit 6. System Physiology – Plant

Plant viruses are

TLS Online TPP Program

#Question id: 29586

#Unit 6. System Physiology – Plant

When red and far-red light were given together, the rate of photosynthesis was greater than the sum of the individual rates, phenomenon known as