Tag: classification of bryophytes

Questions Related to classification of bryophytes

Dichotomous branching occurs in

botany pictorial feature of plant kingdom classification of bryophytes types of bryophytes bryophyta

  1. Liverworts

  2. Funaria

  3. Dryopteris

  4. Pinus

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Correct Option: A

Sphaerocarpos belongs to 

botany pictorial feature of plant kingdom classification of bryophytes types of bryophytes bryophyta

  1. Bryophyta

  2. Pteridophyta

  3. Gymnosperms

  4. Angiosperms

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Correct Option: A
Explanation:

Sphaerocarpos is a genus of liverwort. Division bryophyta is divided into three classes namely, Hepaticopsida (liverwort), Anthoceropsida and Bryopsida. Liverwort is divided into four orders namely, Marchantiales (example: Riccia), Sphaerocarpales (example: Sphaerocarpos), Jungermanniales (example: Pellia) and Calobryales (example: Calobryum).

Thus, the correct answer is option A.

Archegoniophore occurs in

botany pictorial feature of plant kingdom classification of bryophytes types of bryophytes bryophyta

  1. Chara

  2. Funaria

  3. Adiantum

  4. Marchantia

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Correct Option: D
Explanation:

Archegoniophore is a stalk of a prothallium on which archegonia grows. Marchantia is a genus of liverworts. The thallus of Marchantia is dioecious in nature. It produces either female archegoniophores or male antheridiophores. 

Thus, the correct answer is option D.

Areolated thallus is characteristic of

botany pictorial feature of plant kingdom classification of bryophytes types of bryophytes bryophyta

  1. Funaria hygrometrica

  2. Polytrichium commune

  3. Marchantia

  4. Porella pelatyphylla

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Correct Option: C
Explanation:

The upper part of the thallus shows well-developed air chambers bounded on all sides by plates of cells, below by the storage tissue and roofed in by an epidermal layer of cells; each chamber is open to the air by a simple pore.

In moss, sporophyte is formed on

biology plant kingdom classification of bryophytes types of bryophytes bryophyta

  1. Antheridia

  2. Archegonium

  3. Prothallus

  4. Leafy stage

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Correct Option: A

Immature male gametophyte differs from a mature male gametophyte in that it.

biology plant kingdom classification of bryophytes types of bryophytes bryophyta

  1. Has not yet left pollen sac

  2. Has not yet germinated and its generative cell has not divided into two male gametes

  3. Is a microspore that has not yet divided by mitosis

  4. Still consists of microsporocyte

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Correct Option: B

The female sex organ in Riccia and Funaria is _____________.

biology plant kingdom classification of bryophytes types of bryophytes bryophyta

  1. antheridium

  2. paraphysis

  3. archegonium

  4. oogonium

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Correct Option: C
Explanation:

The sex organs in bryophytes (Riccia, Funaria), are multicellular and jacketed. The jacket of the sterile cell around the sperm and egg is an adaptation to a life on land. The male reproductive organs are antheridia and female reproductive organs are archegonia.

So the correct option is B.

A sterile jacket around gametangia is found among _______________.

biology plant kingdom classification of bryophytes types of bryophytes bryophyta

  1. bryophytes

  2. lichens

  3. algae

  4. fungi

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Correct Option: A
Explanation:

The sex organs in bryophytes {Riccia, Funaria), are multicellular and jacketed. The jacket of the sterile cell around the sperm and egg is an adaptation to a life on land. The male reproductive organs are antheridia and female reproductive organs are archegonia.

So the correct option is A.