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11th Biology Monthly Test - 2 ( Bio - Botany - Plant Growth and Development )

MABS Institution

11th Biology Monthly Test - 2 ( Bio - Botany - Plant Growth and Development )-Aug 2020

Time : 2.30 Hours

Part - A

Multiple Choice Question - Answer All Question

The.term kinetin was coined by .................

Skoog
Haberlandt
Kurosawa
Lethon

The mineral ........... is required for synthesis of IAA.

Copper
Magnesium
Zinc
Boron

Senescence is retarded by .............

ABA
Nitrogen deficiency
High temperature
light

Bio Assay of ABA was done with

cotton bolls
Pineapple
Rice
Sugarcane

.............. is a day neutral plant.

Bryophyllum
Wheat
Tobacco
Tomato

Biennials can be made to ftower in the first season itself by treatment with ...............

Auxin
Kinetin
GA
ABA

ABAwa$ first isolated from ................

ripe fruits
coconut milk
cotton bolls
Herring fish

Which hormone is maximum in coconut milk?

Gibberellins
Ethylene
Cytokinin
Auxin

Identify a character which is not related to phytohormones.

Phytohormones are inorganic in nature.
They influence physiological activities
They are required in trace quantities
They are produced in tips of roots and stems

The term synergistic action of hormones refers to

When two hormones act together but brings about opposite effects.
When two hormones act together and contribute to the same function.
When one hormone affects more than one function.
When many hormones bring about opposite effects

Part - B

Generic 2 - Answer All Question

What is the significance of abscission?

Define Senescence.'

What is Richmond Lang effect?
What is bolting?

What is redifferentiation?

How does ABA show Antagonistic effect?

What is the agricultural role of ethylene?

Part - C

Generic 3 - Answer All Question

Explain any three factors causing dormancy in seeds.

What are climacteric fruits?

Draw a growth curve.

Write the physiological effects of Auxin.
What is plasticity?

What are phytochromes?

What is the importance of photoperiodism?

Part - D

Generic 5 - Answer All Question

Explain 'senescence'.

Explain the physiological effects and agricultural role of Auxin.

Will a defoliated plant respond to photoperiodic cycle? Give reasons.

Explain the physiological effects of GA? Add a note on its applications

Describe an experiment to measure the growth of a plant.

What is Photoperiodism. How are plants classified based on photoperiodism?

Describe the mechanism of photoperiodic induction of flowering.

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