TLS Online TPP Program

#Question id: 24165


When winding an old clock, it is important not to overwind it. Overwinding occurs when the mainspring is almost fully wound, but the operator continues to turn the winding key. This causes the main spring to coil too tightly, and might even break it.

This paragraph best supports the statement that

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. clocks have changed over the years.
  2. old-fashioned clocks become fragile with age.
  3. old-fashioned clocks were operated by an internal spring.
  4. overwinding clocks used to be a common mistake
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TLS Online TPP Program

#Question id: 19310

#Unit 4. Cell Communication and Cell Signaling

Fusicoccin opposed the role of _____I______ and mimic the role of____II_____.

TLS Online TPP Program

#Question id: 19309

#Unit 4. Cell Communication and Cell Signaling

What is the role of fusicoccin?
a) reversibly opening of stomata
b) Plant wilting
c) tumour formation
d) Apoptosis of tissue

TLS Online TPP Program

#Question id: 19308

#Unit 4. Cell Communication and Cell Signaling

Match the following;

 

   Column A

 

                 Column B

 

      Column C

 

A) Attack strategy

 

i) Secreted cell wall‐degrading enzymes

 

ii) Intimate intracellular contact with plant cells

 

iii) Initial biotrophic phase

 

 

 

 

a) Necrotrophy

 

 

 

b) Biotrophy

 

 

B) Host range

 

iv) Intermediate

 

v) Narrow

 

vi) Broad

 

 

 

c) Hemibiotrophy

TLS Online TPP Program

#Question id: 19105

#Unit 4. Cell Communication and Cell Signaling

The type III secretion system (T3SS), to deliver bacterial effector proteins into the plant cell have been identified to be secretion of enzymes which causes dead of the plant, these enzymes are;
a) Phosphatases
b) Proteases 
c)  Lyases
d) Isomerase
e) Ligase

TLS Online TPP Program

#Question id: 19104

#Unit 4. Cell Communication and Cell Signaling

The structural components of the T3SS are encoded by the clustered gene known as

TLS Online TPP Program

#Question id: 19103

#Unit 4. Cell Communication and Cell Signaling

During infection, most bacteria remain in extracellular spaces and use a specialized mechanism, to deliver bacterial effector proteins into the plant cell that is