Pollen Grain and Gynoecium Study in Botany

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Questions and Answers

What is the study of pollen grain known as?

  • Gynospore
  • Polynology (correct)
  • Botany
  • Pistillography

What is the outer surface of a pollen grain highly variable in?

  • Color
  • Texture
  • Size
  • Shape (correct)

What is the individual member of the pistil called?

  • Carpel (correct)
  • Petal
  • Stamen
  • Sepal

What are the two membranes that make up the exine of a pollen grain?

<p>Outer thick and rough, inner thin and smooth (D)</p> Signup and view all the answers

What is the swollen basal portion of the Pistil called?

<p>Ovary (A)</p> Signup and view all the answers

What are the components that compose a pollen grain?

<p>Carbohydrate, protein, fat, water (A)</p> Signup and view all the answers

What is the substance called that covers the exine in insect-pollinated pollengrains?

<p>Pollenkit (A)</p> Signup and view all the answers

What is the terminal portion of the Pistil that lies at the tip of the style called?

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

What is the upward outgrowth of the Ovary seen in multicarpellary, unilocular pistils?

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

What is the process of formation of male gametophyte from microspore called?

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

What encloses the embryosac and provides nourishment to the developing embryo?

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

What connects ovules to the Placenta or Ovary wall?

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

What is the narrow passage that helps in the entry of the pollentube?

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

Which structure in angiosperms consists of a vegetative cell and two male gametes?

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

What is the female gametophyte that contains the egg apparatus, antipodial cell, and polar body called?

<p>Embryo sac (D)</p> Signup and view all the answers

What is the place of origin of the integument or basal swollen part of the nucellus called?

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

What is the formation of the megaspore mother cell called?

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

What is the group of parenchymatous tissue that connects the ovary with the ovule called?

<p>Placentation (D)</p> Signup and view all the answers

In which type of ovule do the micropyle and chalaza lie on either side of the funicle?

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

What does the term 'Syncarpous' refer to in relation to the pistil structure?

<p>Fusion of carpels (A)</p> Signup and view all the answers

Which type of ovule has the micropyle facing upwards with an elongated funicle showing unilateral growth?

<p>Circinotropous (A)</p> Signup and view all the answers

What is the defining feature of an Apocarpous pistil?

<p>Free carpels (D)</p> Signup and view all the answers

Which type of ovule has the micropyle near the hilum and facing downward towards the placenta?

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

What causes the Ovule to be inverted in Anatropous ovules?

<p>Curvature of the funicle (A)</p> Signup and view all the answers

What is the term used to describe a flower that is divided longitudinally in two similar halves in any plane passing through the center?

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

Where is the ovary located in a flower with perigyny?

<p>Around all other floral parts (A)</p> Signup and view all the answers

Which type of flower has an ovary that is below other floral parts?

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

What is the term for the formation of microspores or pollen grains inside microsporangia?

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

Which type of anther consists of 4 microsponangia in two anther lobes?

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

What type of flower has an ovary that is superior?

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

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