Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 63371
TLS Online TPP Program

#Question id: 24212

Choose the correct statement
a. Hexokinases IV remains sequesters in the nucleus in case of high F-6-P and high ATP
b. Hexokinases IV remains sequesters in the cytoplasm in case of high F-6-P and high ATP
c. Hexokinase requires Mg+2 for its activity, because the true substrate of the enzyme is not ATP4- but the MgATP2- complex.
d. Hexokinase requires Mg+2 for its activity, because the true substrate of the enzyme is MgATP4- but not the MgATP2- complex.

#Biochemistry
  1. a & b
  2. b & c
  3. c & d
  4. a & c
More Questions
TLS Online TPP Program

#Question id: 37886

#Plant Biotechnology

Column I (Hormone)Column II (Function)
A. Auxin1. Inhibition of leaf senescence
B. Cytokinin2. Maturation of somatic embryo
C. Gibberellin (GA)3. Inhibition of axillary bud outgrowth (Apical Dominance)
D. Abscisic Acid (ABA)4. Fruit ripening
E. Ethylene5. Release from dormancy (Seeds/Buds)
TLS Online TPP Program

#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
TLS Online TPP Program

#Question id: 37888

#Plant Biotechnology

Assertion (A): Tracheary element differentiation is considered an irreversible process. 
Reason (R): During differentiation, the cells lose their nuclei and cytoplasm, preventing dedifferentiation or redifferentiation.

Select the correct option:
TLS Online TPP Program

#Question id: 37889

#Plant Biotechnology

Consider the following statements regarding vascular differentiation:
1. Auxin is the principal limiting factor for vascular differentiation.
2. Gibberellic Acid (GA) is essential for the differentiation of phloem.
3. Lower levels of NH4+ and NO3- inhibit vascularization.
4. A high Cytokinin : Auxin ratio can promote both xylem and phloem differentiation.

Which of the statements given above are CORRECT?
TLS Online TPP Program

#Question id: 37890

#Plant Biotechnology

In which plant were the TED genes (TED2, TED3, TED4) identified as being expressed during the redifferentiation of mesophyll cells into tracheary elements?
TLS Online TPP Program

#Question id: 37891

#Plant Biotechnology

In the context of vascular tissue differentiation in vitro, which of the following sucrose concentrations is correctly matched with the type of tissue it predominantly induces?