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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332

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BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem
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Seeds are mature ______; fruits are mature _______.

  1. a. ovaries; ovules
  2. b. ovules; stamens
  3. c. ovules; ovaries
  4. d. stamens; ovaries

Summary Introduction

Introduction: A flower is the reproductive part of the modified thick shoot of an angiosperm plant. A part of the carpel which carries female gametes is called the ovule. Ovules undergo fertilization to produce mature seeds. The ovary undergoes fertilization to produce fruits which consist of flowers. Seed dispersal is the main function of the fruit.

Explanation

Reason for the correct answer:

The double fertilization that takes place in most of the flowering plants will produce a triploid cell and a zygote. They undergo mitotic division and the triploid cell develops into endosperm while the zygote develops into an embryo sporophyte. During the maturation time of an embryo, the ovules’ integuments will develop into a seed covering called as a seed coat. Ovules undergo fertilization to produce mature seeds. Seeds mainly consist of three parts – an embryo, nutritive tissue or food storage, and the seed covering called as seed coat. The enlarged basal region of a carpel containing ovules is called an ovary. They undergo fertilization to produce the fruit. Ovules are a part of the carpel which carries the female gametes. They undergo fertilization to produce seeds.

Option a. is given as “ovules; ovaries”.

Seeds are produced by the fertilization of the ovules while the fruits are produced by the fertilization of the ovary.

Hence, the correct answer is option c...

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