Which of the following apply to the synthesis of plant cell walls? Please select all that apply.

a) Cellulose microfibrils are formed by cellulose synthase complexes called rosettes

b) Cellulose is synthesized using cytoplasmic ATP-glucose and deposited as microfibrils directly on the outer surface of the plasma membrane.

c) Matrix polysaccharides of plant cell walls are synthesized in the Golgi apparatus and exported to the cell wall by endocytosis.

d) The direction of cellulose microfibril growth is determined by the orientation of arrays of microtubules lying just below the plasma membrane.

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#Question id: 7760

#Unit 5. Developmental Biology

In general, the hormones that regulate senescence can be divided into two basic categories based on their most commonly observed effects:

I) positive (promoting) senescence regulators and

II) negative (repressing) senescence regulators

a) Hormones involved-Ethylene, Abscisic acid (ABA)

b) Hormones involved-Brassinosteroids (BRs), Salicylic acid (SA), Jasmonic acid (JA)

c) Hormones involved-Cytokinin, Auxin, Gibberellin (GAs)

Select correct combinations from given hormones which are involved in regulators?

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#Question id: 19125

#Unit 12. Applied Biology

Which nature of interaction between the analytes and the biological material used in biosensor?

1. The analytes may be converted into a new chemical molecule (by enzymes)

2. The analytes may simply bind to the biological material present on the biosensor 

3. The analytes may be converted into dimer molecule 

Which of the following above statements are correct?

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#Question id: 29448

#Unit 6. System Physiology – Plant

Plant genes expressed early, or in the absence of bacterial infection, are termed

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#Question id: 10619

#Unit 10. Ecological Principles

Which of the following is incorrect?

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#Question id: 23890

#Unit 13. Methods in Biology

Which of the following is an essential element of plasmids used as cloning vectors?

a. a centromere

b. a telomere

c. an origin of replication

d. a drug resistance gene