Skip to ContentGo to accessibility page
OpenStax Logo
Biology

Review Questions

BiologyReview Questions

Review Questions

3.

Seed plants are ________.

  1. all homosporous.
  2. mostly homosporous with some heterosporous.
  3. mostly heterosporous with some homosporous.
  4. all heterosporous.
4.

Besides the seed, what other major structure diminishes a plant’s reliance on water for reproduction?

  1. flower
  2. fruit
  3. pollen
  4. spore
5.

In which of the following geological periods would gymnosperms dominate the landscape?

  1. Carboniferous
  2. Permian
  3. Triassic
  4. Eocene (present)
6.

Which of the following structures widens the geographic range of a species and is an agent of dispersal?

  1. seed
  2. flower
  3. leaf
  4. root
7.

Which of the following traits characterizes gymnosperms?

  1. The plants carry exposed seeds on modified leaves.
  2. Reproductive structures are located in a flower.
  3. After fertilization, the ovary thickens and forms a fruit.
  4. The gametophyte is longest phase of the life cycle.
8.

Megasporocytes will eventually produce which of the following?

  1. pollen grain
  2. sporophytes
  3. male gametophytes
  4. female gametophytes
9.

What is the ploidy of the following structures: gametophyte, seed, spore, sporophyte?

  1. 1n, 1n, 2n, 2n
  2. 1n, 2n, 1n, 2n
  3. 2n, 1n, 2n, 1n
  4. 2n, 2n, 1n, 1n
10.

In the northern forests of Siberia, a tall tree is most likely a:

  1. conifer
  2. cycad
  3. Gingko biloba
  4. gnetophyte
11.

Which of the following structures in a flower is not directly involved in reproduction?

  1. the style
  2. the stamen
  3. the sepal
  4. the anther
12.

Pollen grains develop in which structure?

  1. the anther
  2. the stigma
  3. the filament
  4. the carpel
13.

In the course of double fertilization, one sperm cell fuses with the egg and the second one fuses with ________.

  1. the synergids
  2. the polar nuclei of the center cell
  3. the egg as well
  4. the antipodal cells
14.

Corn develops from a seedling with a single cotyledon, displays parallel veins on its leaves, and produces monosulcate pollen. It is most likely:

  1. a gymnosperm
  2. a monocot
  3. a eudicot
  4. a basal angiosperm
15.

Which of the following plant structures is not a defense against herbivory?

  1. thorns
  2. spines
  3. nectar
  4. alkaloids
16.

White and sweet-smelling flowers with abundant nectar are probably pollinated by

  1. bees and butterflies
  2. flies
  3. birds
  4. wind
17.

Abundant and powdery pollen produced by small, indistinct flowers is probably transported by:

  1. bees and butterflies
  2. flies
  3. birds
  4. wind
18.

Plants are a source of ________.

  1. food
  2. fuel
  3. medicine
  4. all of the above
PreviousNext
Order a print copy
Citation/Attribution
Reuse and redistribution of this content in digital or print format:
  • This book may not be used in the training of large language models or otherwise be ingested into large language models or generative AI offerings without OpenStax's prior written permission.
  • This book uses the Creative Commons Attribution License, which means that you can reuse and modify the material only for noncommercial purposes, must attribute OpenStax, and must distribute any derivative works under the same license.
  • Any commercial printing of this textbook, including using a local or custom printer, must be approved by OpenStax, and proper citation provided.
  • OpenStax-copyrighted images, activities, assessments, and similar components of this book are subject to the same licensing – CC-BY-NC-SA. They can be used for noncommercial purposes with attribution. Commercial use requires permission.
  • Permission requests: Anyone who intends to incorporate this content (including text, images, and other components) into large language models, use it in AI offerings, use it commercially (including in print), and/or has questions about another use case is welcome to complete our reuse request form.
Attribution information
  • If you are redistributing all or part of this book in a noncommercial print format, then you must include on every physical page the following attribution:

    Access for free at https://openstax.org/books/biology/pages/1-introduction

  • If you are redistributing all or part of this book in a noncommercial digital format, then for every page that includes OpenStax content, you must license the derivative work under the same CC-BY-NC-SA license as the original, and include on every digital page view the following attribution:

    Access for free at https://openstax.org/books/biology/pages/1-introduction

Citation information

The information below includes the information needed to generate citations in most major styles (APA, MLA, etc.); you must reformat and organize the information as needed to fit the requirements of the style. Use the information below to generate a citation. We recommend using a citation tool such as this one.

© Feb 14, 2022 OpenStax. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License. The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo, and Rice University name, and Rice University logo trademarks, or wordmarks are not subject to the Creative Commons license and may not be reproduced without the prior and express written consent of Rice University.