1.) Which among the following phylum is also called the amphibians of the plant kingdom?
a) Pteridophytes
b) Algae
c) Bryophytes
d) Gymnosperms
2.) Which of the following is absent in the Bryophytes?
a)Chloroplast
b) Leaves
c)Rhizoids
d)Thallus
3.) Which of the following statements is INCORRECT about bryophytes?
a) The male sex organ is called Archegonium
b) The main plant body is haploid.
c) The plant body is more differentiated than algae.
d)Plant body stays attached to the substratum by unicellular or multicellular rhizoids.
4.) Which of the following belongs to class Anthocertae?
a) Hornworts
b) Liverworts
c) Mosses
d) All of them
5.) The male sex organ of bryophytes called antheridium, produces a biflagellate gamete called?
a) Sperms
b) Antherozoids
c) Archegonium
d) Sporozoids
6.) Identify the correct statement from the following?
a) All the bryophytes have true vascular system but are lack of leaves
b) All the bryophytes do not contain true leaves and true stem.
c) All the bryophytes have true stem but are lack of vascular system
d) All the bryophytes have leaves but are lack of stem
7.) Match List-I with List-II
List-I | List-II | ||
(a) | Gametophyte | (i) | Male sex organ |
(b) | Sporophyte | (ii) | Haploid plant body |
(c) | Antheridium | (iii) | Female sex organ |
(d) | Archegonium | (iv) | Multicellular diploid body produced by zygote. |
(a) (b) (c) (d)
a) (i) (ii) (iii) (iv)
b) (ii) (iv) (i) (iii)
c) (i) (iii) (ii) (iv)
d) (ii) (ii) (iv) (iii)
8) Why plants of class Hepaticae are named as ‘Liverworts’?
a) Lobes of the flower are similar to lobes of the liver
b) Lobes of the fruit are similar to lobes of the liver
c) Lobes of the thallus are similar lobes of the liver
d) Lobes of the budare similar to lobes of the liver
9.) Which of the following statements is INCORRECT regarding the economic and ecological importance of Bryophytes?
a) Used as packing materials for trans-shipment
b) Decompose rock
c) Prevent soil erosion
d) Used in the treatment for fertility
10.) Cells of the most hornworts contain:
a) Single Chloroplast
b) Double Chloroplast
c) Three Chloroplast
d) Four Chloroplast
11.) Which of the following is an example of Liverworts?
a) Funaria
b) Polytrichum
c) Marchantia
d) Sphagnum
12.) When the flattened leaves are produced with overlapping leaves in two or more ranks, then these are called as:
a) Mosy mosses
b) Leafy mosses
c) Scaly liverworts
d) Livery worts
13.) Which of the following is the specialised structure that develop in small receptacles called gemma cup and eventually germinates to form a new individual?
a) Gemmae
b) Sporophyte
c) Rhizoids
d) Thallus
14.) In the reproduction of Bryophyte, reproduction of saprophyte occurs by:
a) The formation of gametes
b) The formation of thallus
c) The formation of fragments
d) The formation of spores
15.) Species of Sphagnum which provide peat and have been used as fuel as well as packing material belongs to which category of bryophyte?
a) Liverworts
b) Mosses
c) Chlorophyceae
d) Phanerogams
16.) In some species of bryophyte, which of the following asexual reproduction occurs?
a) By vegetative method
b) Formation of spores
c) By fragmentation
d) All of them
17.) Which of the following statements is INCORRECT with respect to liverworts?
a) They usually grow in moist shady habitat
b) Their plant body is thalloid
c) They bear gemmae for asexual reproduction
d) The first stage in the life cycle is protonema
18.) Alteration of generation refers to:
a) The Gene interaction
b) The Nitrogen cycle of air
c) The carbon formation in mosses
d) The life cycle of plant
19.) The specialised structure called gemmae is the unique feature of which of the following?
a) Mosses
b) Liverworts
c) Oomycete
d) Phycomycetes
20.) Which of the following is NOT an economical important of bryophyte?
a) Apiculture
b) Moss industry
c) Preservative agent
d) Horticulture
21.) Which of the following is NOT an example of mosses?
a) Riccia
b) Polytrichum
c) Funaria
d) Sphagnum
22.) Which of the following stages bears the sex organs in the stages of life cycle of mosses?
a) Protonema
b) Thalloid stage
c) Leafy stage
d) Rustic stage
23.) Which of the following is an INCORRECT statement regarding mosses?
a)Spores are formed before meiosis
b) Predominant stage of life cycle is gametophyte
c) The plant body is attached to soil through multicellular and branched rhizoids
d) Vegetative reproduction is by fragmentation and budding
24.) Which of the following are the two stages in the life cycle of bryophytes?
a) Gametophyte and Sporophyte
b) Lag stage and Log stage
c) Static stage and active stage
d) Exponential and stationary
25.) Which of the following is INCORRECTLY matched?
a) Gemmae → Gemma cups
b) Antheridium → Antherozoids
c) Protonema → Mosses
d) Leafy stage → Liverworts
Answers:
1.)
Solution:(c) Bryophytes
Bryophytes are called the amphibians of the plant kingdom because even though they live in soil, they rely on water for reproduction.
2.)
Solution:b) Leaves
Leaves are absent in the bryophytes. Leaves are replaced by the leaf-like scales which contain chloroplast.
3.)
Solution: (a) The male sex organ is called Archegonium
In the plant body of bryophytes, the male sex organ is called the antheridium.
4.)
Solution:a) Hornworts
Liverworts belong to class Hepaticae and mosses belong to class Musci. Hornworts belong to class Anthocerotae.
5.)
Solution:(b) Antherozoids
The multicellular male sex organ of bryophytes called the Antherozoids, produces the biflagellate Antherozoids.
6.)
Solution:b) All the bryophytes do not contain true leaves and true stem.
True leaves, true stem and true vascular tissue all are absent in the bryophytes. They have leaf-life scales and root-like structure called rhizoids.
7.)
Solution:b) (ii) (iv) (i) (iii)
Gametophyte is the haploid plant body, Sporophyte is the diploid plant body, antheridium is the male sex organ of the plant, and Archegonium is the female sex organ of the plant.
8.)
Solution:c) Lobes of the thallus looks like lobes of the liver
Some plants of class Hepaticae have flattened body which is known as thallus and some have leafy appearance. Name liverworts was given because the lobes of the thallus are similar to lobes of the liver.
9.)
Solution:(d) Used in the treatment for fertility
Bryophytes are not used in the treatment for fertility.
10.)
Solution:a) Single Chloroplast
Cells of the most hornworts contain only one chloroplast.
11.)
Solution:(c) Marchantia
Marchantia with a thalloid plant body is a very common example of liverworts.
12.)
Solution:c) Scaly liverworts
When the flattened leaves are produced with overlapping leaves in two or more ranks, then these are called as Scaly liverworts. Produced leaves are overlapped by scales.
13.)
Solution:(a) Gemmae
Gemmae are the specialised structures that develop inside the gemma cups located on the thalli. Gemmae become detached from the parent body and germinate to form a new individual.
14.)
Solution:d) The formation of spores
In the reproduction of Bryophyte, reproduction of gametophyte occurs sexually by the formation of gametes. Reproduction of saprophyte occurs asexually by the formation of spores.
15.)
Solution:(b) Mosses
Sphagnum is a moss that has long been used as fuel and as packing material for trans-shipment of living materials due to their capacity of holding water.
16.)
Solution:d) All of them
In some species of bryophyte, asexual reproduction occurs by vegetative methods. Where, vegetative method of fragmentation and genome takes place. Spore formation is a type of asexual reproduction in the bryophytes.
17.)
Solution:(d) The first stage in the life cycle is protonema.
The first stage in the life cycle of liverworts is not protonema.
18.)
Solution:d) The life cycle of plant
Alteration of generation refers to the life cycle of plant.
19.)
Solution:(b) Liverworts
The specialised structure called gemmae that develop in gemma cups is the feature of liverworts.
20.)
Solution:a) Apiculture
In the Apiculture, honey bees are involved. An economical importance of bryophytes are preservative agent, source of fuel, horticulture and moss industry etc.
21.)
Solution:(a) Riccia
Riccia is an example of liverworts, while Sphagnum, Polytrichum, Funaria are the common examples of mosses.
22.)
Solution:(c) Leafy stage
Leafy stage is the second stage in the gametophytic cycle and this stage bears the sex organs.
23.)
Solution:(a) Spores are formed before meiosis
In the sporophyte stage of mosses the spores inside the capsule are formed after meiosis.
24.)
Solution:(a) Gametophyte and Sporophyte
Gametophytic stage and sporophytic stages are the two stages of life cycle of bryophytes.
25.)
Solution:(d) Leafy stage → Liverworts
Leafy stage is not a characteristic of liverworts but it’s the characteristic of mosses.