NEET Questions - Botany - Growth and Development in Plants

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Physics Chemistry Botany Zoology

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What is the maximum period of growth ?

Slow growth rate
Steady growth rate
Speedy growth rate
Senescence phase

Which apparatus is used for measurement of growth ?

Auxanometer
Potometer
Photometer
Hydrometer

Ethylene is responsible for

Flowering
Disease in roots
Ripping of fruits
Formation of fruits

What is the cause of `Bakane’ disease?

Fungi
Algae
Bacteria
Virus

Which substances are secreted at the apex of plant and they regulates growth of another region ?

Enzymes
Hormones
Vitamins
None of these

Which of the following substance is not related with initiation of growth ?

ABA
Gibberrelin
IAA
Cytokinin

Which group is correct for the growth inducer hormone ?

IAA, ABA and cytokinins
IAA, Gibberrelin, ABA
IAA, Gibberrelin, cytokinins
ABA, Ethylene

Mention the effect of cytokinin

It induces cell division and retards the process of senescence
It maintains dormancy
It induces senescence
It inhibits cell division

Give full form of 2-4-D

2-4 dichloro phenoxy acetic acid
2-4 dichloro butyric acid
2-4 dichloro nepthalic acetic acid
2-4 dichloro ethylenic acid

Which of the following stimulates growth in the internode region ?

Auxin
Gibberrelin
Cytokinin
Abscisic acid

Oat - coleoptile test (coleoptile-test) is conducted for which hormone ?

Abscisic acid
Gibberrelic acid (GA)
Indole acetic acid (IAA)
Indole naphthalne acetic acid (INAA)

Gibberrelin participate in which of the following process?

Removal of seed dormancy
Developing seed less fruit
Growth of internodes
All of the above

Tropic movement is due to

Bidirectional effect of environmental factors on plant parts
Unidirectional effect of environmental factors on plant parts
Multidirectional effect of environmental factors on plant parts
No effect of environmental factors on plant parts

Which is the correct sequence for different phases of growth?

Cell formation of cell differentiation- cell elongation
Cell formation - cell elongation- cell differentiation
Cell differentiation- cell elongation- cell formation
Cell differentiation- cell formation- cell elongation

What is the required temperature for growth in most of the plants?

20-30 °C
35-40 °C
10-15 °C
15-20 °C

NEET Botany Questions: Growth and Development in Plants