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Chapter 25: Q 12. (page 667)

Which of the following structures is not found in bryophytes?

a. a cellulose cell wall

b. chloroplast

c. sporangium

d. root

Short Answer

Expert verified

Option (d) root is the correct answer.

Step by step solution

01

Step 1. Information on bryophytes.

  • The division bryophyte is one of the five divisions of the plant Kingdom along with thallophyte, pteridophyte, gymnosperms, and angiosperms.
  • Bryophytes are non-vascular plants growing on land and they are further divided into three parts namely liverworts, hornworts, and mosses.
  • The life cycle of bryophytes is haplo-diplontic since alteration of generation occurs between the haploid stage in the diploid stage.
02

Step 2. Explanation on the absence of roots in  bryophytes. 

Bryophytes do not have true roots as present in vascular plants instead they have a root-like structure called the rhizoid that not only absorb moisture, water, and other nutrients from its surrounding but also provides mechanical support to the plant.

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Most popular questions from this chapter

Which of the following statements of the fern life cycle is false?

a. Sporangia produce haploid spores.

b. The sporophyte grows from a gametophyte.

c. The sporophyte is diploid and the gametophyte is haploid.

d. Sporangia form on the underside of the gametophyte.

What are the three classes of bryophytes?

Which one of these characteristics is present in land plants and not in Charales?

a. alternation of generations

b. flagellated sperm

c. phragmoplasts

d. plasmodesmata

Describe two adaptations that are present in mosses, but not hornworts or liverworts, which reflect steps of evolution toward land plants.

The following structures are found on the underside of fern leaves and contain sporangia:

  1. sori

  2. rhizomes

  3. megaphylls
  4. microphylls
See all solutions

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