Practice Questions

TLS Online TPP Program

#Question id: 10280

The enzyme of glycolytic pathway that forms fructose 1,6-bisphosphate is called phosphofructokinase-1 (PFK-1), which statements can’t distinguish it from a second enzyme (PFK-2) Phosphofructokinase-2.

#Unit 6. System Physiology – Plant

PFK-2 that catalyzes the formation of fructose 2,6-bisphosphate from fructose 6-phosphate rather than fructose 1,6-bisphosphate in a separate pathway
PFK-2 activity is regulated by phosphorylation while the PFK-1 activity is regulated by high conc of ATP and NADH etc
more important regulator of plant glycolysis is the cytosolic concentration of PEP, which is an Activator of the plant ATP-dependent PFK-1 and inhibitor of PFK-2
fructose 2,6-bisphosphate activates PFK-1 by increasing its apparent affinity for fructose 6-phosphate

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TLS Online TPP Program

#Question id: 15706

#Unit 12. Applied Biology

Growth regulators which cause cell division, cell differentiation, shoot differentiation

TLS Online TPP Program

#Question id: 15707

#Unit 12. Applied Biology

Mature and certain differentiated e.g., parenchyma and often colenchyma cells undergo changes to become meristematic, this is called

TLS Online TPP Program

#Question id: 15708

#Unit 12. Applied Biology

In many species hormone which promotes SE and shoot bud regeneration and markedly improves SE maturation is

TLS Online TPP Program

#Question id: 15709

#Unit 12. Applied Biology

Anti browning compounds helps to reduce toxicity by removing toxic substances produced during the culture and permits unhindered cell growth.

TLS Online TPP Program

#Question id: 15710

#Unit 12. Applied Biology

A phenolic compound, is sometimes added to inhibit the enzyme IAA oxidase responsible for the breakdown of IAA.

TLS Online TPP Program

#Question id: 15711

#Unit 12. Applied Biology

For the regeneration of a whole plant from a cell or callus tissue, there should be differentiation leading to shoot bud or embryo formation. This may occur through