Tag: uses of bryophytes

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Multiple choice botany kingdom plantae uses of bryophytes introduction to bryophytes cryptogams

Slime pores are found in

  1. Funaria

  2. Riccia

  3. Marchantia

  4. Anthoceros
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Slime pores are found in :

Correct option is (D), Anthoceros.
Anthoceros grown in moist soil. They have thallus body and found in shady area. Slime pores are present in Anthoceros. 
Hence, option D is correct.

Multiple choice botany kingdom plantae uses of bryophytes introduction to bryophytes cryptogams

The plant body of moss(Funaria) is?

  1. Completely sporophyte

  2. Predominantly gametophyte with sporophyte

  3. Completely gametophyte

  4. Predominantly sporophyte with gametophyte
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In mosses like Funaria, the dominant, free-living, and photosynthetic phase is the gametophyte, while the sporophyte is a smaller structure dependent on it. Thus, the plant body is predominantly gametophyte with a dependent sporophyte.

Multiple choice botany kingdom plantae uses of bryophytes introduction to bryophytes cryptogams

Reduced gametophyte is the important character of _____

  1. Lower cryptogams

  2. Higher cryptogams

  3. Gymnosperms

  4. Angiosperms
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The haploid phase in the life cycle of plants is called Gametophyte. It is a haploid phase. It is well developed in bryophytes and highly reduced in angiosperms.

So, the correct option is 'Angiosperms'.

Multiple choice botany kingdom plantae uses of bryophytes introduction to bryophytes cryptogams

Find set of features related to Funaria
a. Protonema
b. Prothallus
c. Gametophore
d. Thallus body
e. NCC in antheridium
f. Haplodiplontic
g. True plant organs in sporophyte
h. Fragmentation

  1. b, d, e, g

  2. a, d, f, g

  3. a, c, f, g, h

  4. a, c, f, h
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Funaria features include a protonema stage (a), leafy gametophores (c), a haplodiplontic life cycle (f), and propagation via fragmentation (h). Features like prothallus (b) belong to pteridophytes, and true plant organs (g) belong to vascular sporophytes, making option C and others incorrect.

Multiple choice botany kingdom plantae uses of bryophytes introduction to bryophytes cryptogams

Which of the following is incorrect about bryophytes?

  1. Sex organs are multicellular

  2. Water is essential for fertilisation

  3. Meiosis occurs at the time of spore formation

  4. Antherozoids are non-motile
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The statement that antherozoids are non-motile is incorrect because bryophyte male gametes (antherozoids) are biflagellate and motile, requiring water to swim toward the archegonium for fertilization. All other listed statements about bryophytes are true.

Multiple choice biology pictorial feature of plant kingdom uses of bryophytes introduction to bryophytes cryptogams

Peat is used at a fuel in some countries. Remains of which plant give rise to peat?

  1. Moss

  2. Ferns

  3. Angiosperms

  4. Gymnosperms
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Peat, also known as turf, is an accumulation of partially decayed vegetaation or organic matter.Sphagnum "moss", also called peat moss, is one of the most common components in peat, although many other plants can contribute.

So, the correct option is A. (moss)

Multiple choice biology pictorial feature of plant kingdom uses of bryophytes introduction to bryophytes cryptogams

Which among the following genus of the bryophyte have ecological value?

  1. Funaria

  2. Riccia

  3. Sphagnum

  4. Anthoceros
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sphagnum is one of the most important plant genera in the world. Sphagnum is one of the few bryophyte genera able to dominate an ecosystem. A healing ointment prepared by Sphagnum leaves mixed with grease is used in the treatment of cuts and wounds. The decoction prepared by boiling dried Sphagnum in water, is used in the treatment of acute haemorrhage. This decoction is used to cure diseases of eyes. The lakes where sphagnum grows are called as Sphagnum bogs. These are well known to produce peat in acidic water. The bog water is antiseptic and has astringent properties. Sphagnum exhibit strong antibacterial properties against Gaffkeya tetragena and Staphylococcus aureus. Sphagnum peat is suitable for production of low and intermediate BTU gas as well as hydrogen , ethylene , natural gas , methanol and gasoline. Sphagnum is used as an effective filtering and absorption agent for the treatment of waste water and effluent of factories with acid and toxic discharge consisting of heavy metals particularly Ag, Pb, Cu , Hg, Fe , Sb and organic substances like detergents, dyes, microorganisms and soils.