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Morphology Of Flowering Plants

Question

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Pointing towards a sunflower plant, the father asked Kailash, a biology student to show him the flower of this plant. Kailash pluck flowering twig and pointed towards the big yellow structure at

the tip of the twig. Father laughed and clarified that it is not a single flower but a group of

several flowers arranged in a disc-like structure. Read the above passage and answer the

following questions:-

I. What is inflorescence?

II. Define racemose and cymose inflorescence?

Solution

I. Inflorescence is an axis bearing a cluster of flowers in a particular manner.

II. In the racemose type of inflorescence, the main axis possesses terminal bud which grows indefinitely giving rise to lateral and axillary flowers. In cymose type, the main axis terminates into a flowers and further growth takes place by lateral branches which arises below the terminal flower.

Some More Questions From Morphology of Flowering Plants Chapter

Define the following terms:
(e) superior ovary

Define the following terms:
perigynous flower

Define the following terms:
epipetalous stamen

Define the following terms:

(a) Racemose and cymose inflorescence

Define the following terms:
(b) Fibrous root and adventitious root

Define the following terms:
(c) Apocarpous and syncarpous ovary

Draw the labelled diagram of the following:
(i) Gram seed (ii) V.S. of maize seed

Describe modifications of stem with suitable examples.

Take one flower each of the families Fabaceae and Solanaceae and write its semi-technical description. Also draw their floral diagram after studying them.

Describe the various types of placentations found in flowering plants.

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