Biology Chapter 1 Adaptations in Flowers and Pollen Tube Entry
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Questions and Answers

What is a notable characteristic of anemophilous flowers?

  • Adaptations for wind pollination (correct)
  • Showy petals and strong fragrance
  • Brightly colored petals and sweet nectar
  • Attractive to bees and butterflies

What is the significance of double fertilization in plants?

  • Ensures genetic diversity within the species (correct)
  • Prevents self-pollination
  • Triggers fruit ripening
  • Aids in seed dispersal

What type of flowers are adapted to pollination by water?

  • Self-pollinating flowers
  • Hydrophilous flowers (correct)
  • Insect-pollinated flowers
  • Anemophilous flowers

Which process involves fruit formation without fertilization?

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

What are albuminous seeds known for, compared to exalbuminous seeds?

<p>Presence of reserve proteins (D)</p> Signup and view all the answers

Which part of the gynoecium determines the compatibility of pollen grains?

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

Identify label A and B in the figure provided in the text. Explain the development of these structures.

<p>A: Nucellus, B: Embryo; They develop through a process involving multiple stages. (C)</p> Signup and view all the answers

What is the artificial method of vegetative propagation called cutting?

<p>A method involving separation of stem or root pieces (B)</p> Signup and view all the answers

Define pollination in plants.

<p>The process of pollen transfer from anther to stigma (A)</p> Signup and view all the answers

What are outbreeding devices in angiospermic plants?

<p>Mechanisms that encourage cross-pollination (B)</p> Signup and view all the answers

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