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TLS Online TPP Program

#Question id: 5683

There may be an important connection between sperm translocation and capacitation. Which of the following option is correct explanation of above statement?

#Unit 5. Developmental Biology

  1. The influx of bicarbonate ions (and possibly other ions) alkalinizes the sperm, raising its pH.

  2. before entering the ampulla of the oviduct, the uncapacitated sperm bind actively to the membranes of the oviduct cells in the narrow passage (the isthmus) preceding it.  This binding is temporary and appears to be broken when the sperm become capacitated.

  3. The cholesterol efflux from the sperm cell membrane is thought to change the location of its “lipid rafts,” isolated regions that often contain receptor proteins that can bind the zona pellucida and participate in the acrosome reaction.

  4. Capacitation is a transient event but translocation is not.

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TLS Online TPP Program

#Question id: 19311

#Unit 4. Cell Communication and Cell Signaling

which of the following pathogen produces HC-toxin?
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