Plant Hormones and Pathogen Diseases Quiz
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Questions and Answers

What is the role of abscisic acid in plants?

Dormancy of embryo, dropping of ripened leaves and fruits

How does ethylene affect plants?

Ripening of leaves and fruits; excess amount causes dropping of leaves and fruits

What are the functions of auxin in plants?

Cell growth, cell elongation, promoting the growth of terminal buds, fruit formation

What is the role of cytokinin in plant cells?

<p>Cell growth, cell division, cell differentiation</p> Signup and view all the answers

How does gibberellin stimulate plant processes?

<p>Stimulates breakdown of stored food to facilitate germination, sprouting of leaves</p> Signup and view all the answers

What are the effects of bacteria on plants?

<p>Blight disease in paddy, Wilt disease in brinjal</p> Signup and view all the answers

Which diseases are caused by viruses in plants?

<p>Mosaic disease in peas and tapioca, Bunchy top of banana</p> Signup and view all the answers

What are examples of diseases caused by fungi in plants?

<p>Quick wilt in pepper, Bud rot of coconut</p> Signup and view all the answers

How does wax covering and cuticle protect plants?

<p>Prevents the entry of germs through leaves</p> Signup and view all the answers

What role does the cell wall play in plant protection?

<p>Provides a well-equipped resistant coat</p> Signup and view all the answers

The excess amount of ethylene causes dropping of ______ and fruits.

<p>leaves</p> Signup and view all the answers

Bacteria causes blight disease in ______.

<p>paddy</p> Signup and view all the answers

Virus causes mosaic disease in ______ and tapioca.

<p>peas</p> Signup and view all the answers

Quick wilt in pepper is caused by ______.

<p>fungus</p> Signup and view all the answers

Wax covering and cuticle prevent the entry of germs through ______.

<p>leaves</p> Signup and view all the answers

Bark protects the inner cells from direct contact of ______.

<p>pathogens</p> Signup and view all the answers

Ardipithecus ramidus is the most primitive member of the ______ race, fossils were discovered from Africa.

<p>human</p> Signup and view all the answers

Australopithecus afarensis had a slender ______, fossils were discovered from Africa.

<p>body</p> Signup and view all the answers

Homo habilis made weapons from stones and bone pieces, fossils were discovered from ______.

<p>Africa</p> Signup and view all the answers

Chemical substances such as lignin, cutin, suberin, etc. provide rigidity to the ______ wall.

<p>cell</p> Signup and view all the answers

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