One of the enzyme that are involve in the ammonium assimilation is Asparagine synthetase (AS), some statements given below about AS such as,

a) This enzyme that catalyzes this reaction, is found in the cytosol of leaves and roots and in nitrogen-fixing nodules

b) High levels of light and carbohydrate inhibit the expression of genes coding for AS and the activity of the enzyme

c) Conditions of ample energy stimulate AS, thus they favor nitrogen assimilation into glutamine and glutamate

d) Energy-limited conditions inhibit GS and GOGAT, stimulate AS, and thus favor nitrogen assimilation into asparagine, a compound that is rich in nitrogen and sufficiently stable for long-distance transport or long term storage

Which of the following statements about AS is correct?

TLS Online TPP Program

#Question id: 37870

#Plant Biotechnology

Given below are two statements:

Statement I: The replacement volume in an open continuous culture is adjusted to keep the culture at submaximal growth indefinitely.

Statement II: Continuous culture systems maintain a steady state by replacing a portion of spent medium with fresh medium.

In the light of the above statements, choose the most appropriate answer from the options given below:

TLS Online TPP Program

#Question id: 37871

#Plant Biotechnology

Given below are two statements:

Statement I: Open continuous cultures involve the removal of equal volumes of cells and used medium which is replaced by fresh medium.

Statement II: In closed continuous cultures, the cell population remains static (constant) because cells are constantly removed.

In the light of the above statements, choose the most appropriate answer from the options given below:

TLS Online TPP Program

#Question id: 37872

#Plant Biotechnology

Given below are two statements:

Statement I: In a closed continuous culture, cells are separated from the removed medium and returned to the vessel, causing the cell biomass to increase.

Statement II: In an open continuous culture, only the used medium is removed while the cells are retained to maintain submaximal growth.

In the light of the above statements, choose the most appropriate answer from the options given below:

TLS Online TPP Program

#Question id: 37873

#Plant Biotechnology

Open culture systems in plant and microbial cell culture are typically of which types?

TLS Online TPP Program

#Question id: 37874

#Plant Biotechnology

In a turbidostat, the culture is maintained at:

TLS Online TPP Program

#Question id: 37875

#Plant Biotechnology

The main feature of a chemostat is: