Plant Kingdom Test

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Plant Kingdom Test - 41

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Weekly Quiz Competition

Question 1
1 / -0

Which one of the following is a unicellular, non-motile desmid?

A
Chromatium

B
Cosmarium

C
Chlorobium

D
Clostridium

Solution

A. Chromatium is a rod-shaped gram-negative purple sulphur bacteria found in water.
B. Cosmarium is a unicellular desmid which consists of two round semicells separated by a constriction. Its usually non-motile but motility can be induced by light.
C. Chlorobium is a gram-negative green sulphur bacteria and is found in hot springs where the environment is sulphide rich.
D. Clostridium is a gram-positive anaerobic bacteria which causes botulism and other infectious diseases like diarrhoea.
So, the correct answer is 'Cosmarium'.
Question 2
1 / -0

The outermost layer epispope splits to form four bands. These bands separate from the spore wall on drying. These bands are called as

A
Jacket

B
Tapetum

C
Oosphere

D
Elators

Solution

The lower plants like the liverworts produce the capsule which contains the spore. The spore is surrounded by the spiral thickening which forms the outer layer of the epispope. These spiral thickenings are like bands which are called as the elators. These elators are hygroscopic cells which can absorb moisture and allows the spore to be released. In the absence of moisture, the elators get separated from the outer wall and protects the spore.
Thus, the correct answer is option D.
Question 3
1 / -0

The group that includes vascular plants is _________.

A
Thallophyta

B
Bryophyta

C
Pteridophyta

D
Both B and C

Solution

Pteridophytes are the earliest plants with vascular properties in the plant kingdom. Vascular plants are those plants that have xylem and phloem.
Thallophytes and bryophytes lack vascular system.
Hence, the correct option is C.
Question 4
1 / -0

Agar-agar is obtained from

A
Red algae

B
Brown algae

C
Green algae

D
Blue-green algae

Solution

Agar agar is a product obtained from numerous algae, mainly of the genus Gracilaria, Gelidium and Eucheuma. All of these algae are characterized by belonging to the group of red algae. These algae are small, have a reddish stem and are rich in mucilage, a type of fiber. These are extracted pouring hot water on them once they are dried in the sun.
Question 5
1 / -0

Which of the following characteristics are present in both Gymnosperms as well as Angiosperms?

A
Leaves, rhizomes and spore

B
Leaves, stems, roots and seeds

C
Flat leaves, Trunks and naked seeds

D
Lack of vascular tissue and small leaflets

E
Needle like leaves, stem roots and fleshy fruits
Solution
- Both Gymnosperms and Angiosperms have well-differentiated roots, stems, and leaves.
- They are Phanerogams that are characterized by the presence of seeds, unlike Cryptogams that do not form seeds.
Hence, the correct option is B.
Question 6
1 / -0

Which group of plants bear flowers?

A
Pteridophytes

B
Angiosperms

C
Gymnosperms

D
Bryophytes

Solution

Angiosperms are plants that produce flowers and bear their seeds in fruits. They are the largest and most diverse group within the kingdom Plantae, with about 300,000 species. Angiosperms represent approximately 80 % of all known living green plants.
So, the correct answer is option B.
Question 7
1 / -0

Sporophyte generation is described by

A
Haploid generation

B
Gamete producing generation

C
Spores producing generation

D
Generation that lacks vascular tissues

Solution

The sporophyte is the stage in the life of plants. This stage is diploid in nature. A diploid Sporophyte phase alternates with haploid gametophyte phase, wherein the haploid spores fuse to form a diploid zygote.

The correct answer is C.
Question 8
1 / -0

Which of the following group of plants shows dominant phase of haploid gametophytic generation?
I. Angiosperms
II. Gymnosperms
III. Horsetails, ferns, club mosses (lycophytes and pteridophytes)
IV. True mosses, liverworts, and hornworts (bryophtyes)

A
I only

B
I and II

C
I, II, and III

D
III and IV

E
IV only

Solution

During the life cycle, plants go through both haploid and diploid generations. referred to as alternation of generations. The diploid plant structure is the sporophyte which produces spores through meiosis. These spores form haploid structure, the gametophyte, which give rise to the haploid gametes. However, during the occurrence of alternation of generation, the dominant generation differs between the plants. While the dominant generation in case of bryophytes (mosses and liverworts) is haploid, with the gametophyte being the main plant, in tracheophytes (vascular plants), the diploid generation is dominant and the sporophyte makes up the main plant.
So, the correct answer is option E.
Question 9
1 / -0

Which of the following kingdoms comprise algae?

A
Monera

B
Plantae

C
Animalia

D
Fungi

Solution

Algae comprise a group of chlorophyll-containing thalloid plants of the simplest type, without true roots, stems, leaves or leaf-like organs. In five-kingdom classification, the multicellular algae are included in the kingdom Plantae. Thus option B is the correct answer.
Question 10
1 / -0

Select the correct pair in which one has vascular tissue, whereas the other does not.

A
Cyanobacteria and algae

B
Algae and fungi

C
Mosses and ferns

D
Ferns and gymnosperms

E
Gymnosperms and angiosperms
Solution
- Pteridophytes and spermatophytes (gymnosperms and angiosperms) are vascular plants as these plants are found in terrestrial habitats.
- Mosses, algae and fungi are nonvascular ones.
Hence the correct pair of the plant that has vascular tissue (ferns) and the one without vascular tissue (mosses) is option C.

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Re-Attempt Weekly Quiz Competition

Plant Kingdom Test - 41

Result

Plant Kingdom Test - 41

Score

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Rank

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SHARING IS CARING

Question 1

Chromatium

Cosmarium

Chlorobium

Clostridium

Solution

Question 2

Jacket

Tapetum

Oosphere

Elators

Solution

Question 3

Thallophyta

Bryophyta

Pteridophyta

Both B and C

Solution

Question 4

Red algae

Brown algae

Green algae

Blue-green algae

Solution

Question 5

Leaves, rhizomes and spore

Leaves, stems, roots and seeds

Flat leaves, Trunks and naked seeds

Lack of vascular tissue and small leaflets

Needle like leaves, stem roots and fleshy fruits

Solution

Question 6

Pteridophytes

Angiosperms

Gymnosperms

Bryophytes

Solution

Question 7

Haploid generation

Gamete producing generation

Spores producing generation

Generation that lacks vascular tissues

Solution

Question 8

I only

I and II

I, II, and III

III and IV

IV only

Solution

Question 9

Monera

Plantae

Animalia

Fungi

Solution

Question 10

Cyanobacteria and algae

Algae and fungi

Mosses and ferns

Ferns and gymnosperms

Gymnosperms and angiosperms

Solution

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