Pharmacognosy II Quiz

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Questions and Answers

What is the purpose of the mature fertilized ovule?

  • To protect the plant from predators
  • To form new plants on germination (correct)
  • To store nutrients for the plant
  • To attract pollinators

Where are ovules arranged in the ovaries?

  • On petals
  • On sepals
  • On placentae (correct)
  • On stamens

What is the micropyle?

  • Minute pore through which pollination occurs (correct)
  • A protective layer of the ovule
  • A structure for storing nutrients
  • A part of the seed coat

What is the chalaza?

<p>Basal swollen part of the nucellus (A)</p> Signup and view all the answers

What is the purpose of the integuments in a mature typical ovule?

<p>To envelop the nucellus (C)</p> Signup and view all the answers

What is the purpose of the integuments in a mature typical ovule?

<p>To protect the nucellus and the embryo (B)</p> Signup and view all the answers

Where are ovules arranged in the ovaries?

<p>On placentae (C)</p> Signup and view all the answers

What is the micropyle?

<p>The minute pore through which pollination occurs (D)</p> Signup and view all the answers

What is the purpose of the mature fertilized ovule?

<p>To form new plants on germination (B)</p> Signup and view all the answers

What is the chalaza?

Signup and view all the answers

What is the purpose of an ovule?

<p>To form new plants on germination (B)</p> Signup and view all the answers

What is the minute pore through which pollination occurs called?

<p>Micropyle (C)</p> Signup and view all the answers

What is the basal swollen part of the ovule called?

<p>Chalaza (B)</p> Signup and view all the answers

What envelops the mass of parenchymatous tissues in a mature typical ovule?

<p>Integuments (C)</p> Signup and view all the answers

Where are ovules arranged in the ovaries?

<p>On placentae (C)</p> Signup and view all the answers

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Study Notes

Ovule Structure and Function

  • A mature fertilized ovule develops into a seed, which contains a fertilized egg and provides nutrients to the developing embryo.
  • Ovules are arranged in the ovaries, which are the female reproductive organs of a flower.

Ovule Components

  • The micropyle is the minute pore through which pollination occurs.
  • The chalaza is the basal swollen part of the ovule.
  • Integuments are the outer layers that envelop the mass of parenchymatous tissues in a mature typical ovule.
  • The purpose of integuments is to protect the ovule and facilitate fertilization.

Ovule Function

  • The purpose of an ovule is to develop into a seed after fertilization, containing a fertilized egg and providing nutrients to the developing embryo.

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