16 Questions
What distinguishes angiosperms from other plants?
Seeds enclosed in carpel resembling a folded leaf
What is the composition of a pistil in angiosperms?
Single carpel, or two or more united carpels
What becomes a fruit in angiosperms?
Ovary
Which division do bleeding hearts belong to?
Magnoliophyta or Anthophyta
What does DNA and cladistic evidence suggest regarding dicots?
Two groups of dicots should be recognized
What is the distinctive feature of true stems in angiosperms?
Bamboo stems
What is the most primitive flower characterized by?
Long receptacle and many spirally arranged flower parts
In the development of female gametophytes in Phylum Magnoliophyta, how many nuclei are produced after meiosis of the diploid megasporocyte?
Eight
What is the function of the generative nucleus in the male gametophyte of a flowering plant?
Divides to form two sperm cells
What is the primary purpose of pollination in flowering plants?
To transfer pollen grains from anther to stigma
In Phylum Magnoliophyta, where does the fertilization process occur?
Within the ovule
What is the fate of the female gametophyte (megagametophyte) after fertilization in a typical flowering plant?
It nourishes the developing seed
What is the role of male gametophytes in a typical flowering plant?
To facilitate fertilization
Which structure differentiates into integuments that later become the seed coat in Phylum Magnoliophyta?
Ovule
How many nuclei are present in the female gametophyte (megagametophyte) of a typical flowering plant at maturity?
8 nuclei and 7 cells
What is the significance of the micropyle in an ovule of a flowering plant?
Allows entry of pollen to reach the egg cell
Test your knowledge on the lecture outline for Chapter 23: Seed Plants - Angiosperms, covering topics such as the development of gametophytes, pollination, fertilization, seed development, and trends of specialization in flowering plants.
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