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?

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#Question id: 37882

#Plant Biotechnology

Statement I: Plant cells can be immobilized by encapsulating them in materials such as agarose or calcium alginate gels. 

Statement II: Immobilized cells are usually packed in a column where liquid medium is kept stagnant to prevent cell detachment.

Choose the correct answer:

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#Question id: 37883

#Plant Biotechnology

Consider the following statements regarding the immobilization of plant cells:

A. Cells can be entrapped in membranes or stainless-steel screens.

B. Immobilization ensures that the cellular physiology remains exactly the same as in suspension cultures.

C. This technique is advantageous for biochemical production. 

D. Liquid medium is continuously run through the column to provide aeration and nutrients.

Which of the statements given above are correct?

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#Question id: 37884

#Plant Biotechnology

Statement I: Immobilization of cells often alters their cellular physiology compared to cells grown in suspension culture.

Statement II: Due to physiological changes, immobilized cell systems are widely preferred for all types of plant studies, including genetic and developmental studies.

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#Question id: 37885

#Plant Biotechnology

Assertion (A): Plant cell and tissue cultures can be maintained indefinitely.

Reason (R): Serial subculturing is performed to transfer tissues to fresh medium to counter nutrient depletion and medium drying.

Select the correct option:

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#Question id: 37886

#Plant Biotechnology

Column I (Hormone)	Column II (Function)
A. Auxin	1. Inhibition of leaf senescence
B. Cytokinin	2. Maturation of somatic embryo
C. Gibberellin (GA)	3. Inhibition of axillary bud outgrowth (Apical Dominance)
D. Abscisic Acid (ABA)	4. Fruit ripening
E. Ethylene	5. Release from dormancy (Seeds/Buds)

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#Question id: 37887

#Plant Biotechnology

Match the sucrose concentration in Column I with the type of vascular tissue favored in Column II.

Column I (Sucrose Conc.)	Column II (Differentiation Result)
A. 1%	1. Mostly Phloem
B. 2%	2. Both Xylem and Phloem
C. 2.5% – 3.5%	3. Little Xylem
D. 4%	4. Mostly Xylem