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#Question id: 11147


The concentrations of ions are very different inside and outside a nerve cell due to ________.

#XL - T Zoology
  1. osmosis
  2. diffusion
  3. sodium-potassium pumps
  4. symports and antiports

Answer:- Option(s): 3


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#Question id: 11720

#XL - R Botany

The embryo, which will grow into the new seedling, has a specialized absorptive organ that is___

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#Question id: 11723

#XL - R Botany

During the α-amylase secretion pathway, a mutation will be found in the sequence of gibberellic acid response element (GARE) the what will caused;

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#Question id: 11728

#XL - R Botany

Which of the following is the precursor of  Cytokinin?

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#Question id: 11733

#XL - R Botany

The synthetic cytokinin compounds that have not been identified in plants, these are;

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#Question id: 11737

#XL - R Botany

Cytokinins have been shown to have effects on many physiological and developmental processes, including____

a) Leaf senescence

b) Apical dominance

c) Gametophytic  development

d) Vascular development

e) Breaking of bud dormancy

f) Causing bud dormancy

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#Question id: 11743

#XL - R Botany

The wall between the two mature sieve tube elements contain a sieve plates, these sieve plate pores are open —that is, unobstructed by

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