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11th Biology Weekly Test - 1 ( Bio - Botany - Plant Growth and Development )

MABS Institution

11th Biology Weekly Test - 1 ( Bio - Botany - Plant Growth and Development )-Aug 2020

Time : 1.30 Hours

Part - A

Multiple Choice Question - Answer All Question

Kurosawa found plants suffering from Bakanae disease. This led to discovery of ................

GA
Cytokinin
ethylene
2,4, D

Wheat is a .......... Plant.

Long day
Short day
Long short day
Short long day

.............. is a synthetic auxin.

IBA
PAA
NAA
IAA

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

The hormone found abundantly in chloroplast of green cells is ............

Auxin
GA
IAA
ABA

Bioassay for cytokinins was done using .............

Avena
Maize
Neem
Rice

Bio Assay of ABA was done with

cotton bolls
Pineapple
Rice
Sugarcane

The fastest growing plant is ...........

Pine
Bamboo
Eucalyptus
Redwood

Select the wrong statement from the following:

Formative phase of the cells retains the capability of cell division.
In elongation phase development of central vacuole takes place.
In maturation phase thickening and differentiation take place.
In maturation phase, the cells grow further.

Select the correctly matched one

A) Human urine i) Auxin –B

B) Corn gram oil ii) GA₃

C) Fungus iii) Abscisic acid II

D) Herring fish sperm iv) Kinitin

E) Unripe maize grains v) Auxin A

F) Young cotton bolls vi) Zeatin

A B C D E F

iii iv v vi i ii
A B C D E F

v i ii iv vi iii
A B C D E F

iii v vi i ii iv
A B C D E F

ii iii v vi iv i

Part - B

Generic 2 - Answer All Question

Give the expression te calculate Geometric growth rate.

Differentiate the absolute growth rate from relative growth rate.

What is a florigen?
Define Growth.

What is Richmond Lang effect?

Part - C

Generic 3 - Answer All Question

List the practical applications of vernalization.

Mention some 'physiological changes occuring during senescence.

Name the plant growth regulators?
Draw an Instrument which can help to measure growth of a plant.

Write the physiological effects of Auxin.

Part - D

Generic 5 - Answer All Question

Describe an experiment to measure the growth of a plant.

Write a note an ethylene.

Write the physiological effects of Cytokinins.

Gardeners trim the plants regularly in tea gardens. Why?
Describe the mechanism of photoperiodic induction of flowering.

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