Plant Kingdom Test

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Plant Kingdom Test - 80

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Weekly Quiz Competition

Question 1
1 / -0

Sulphate ester are present in the wall of _______.

A
Ectocarpus and Dictyota

B
Gelidium and Gracilaria

C
Ectocarpus and Sargassum

D
Spirogyra and Chara

Solution

Polysaccharides whose monomers are esterized to sulfuric acid residues are called sulfonated galactans. Sulfonated galactans are typical for many red algae, depending on their origin are they called agarose, carrageenan, porphyrin, and furan.
So the correct answer is "Gelidium and Gracilaria".
Question 2
1 / -0

The photosynthetic pigment found in red algae is ____.

A
Phycocyanin

B
Carotene

C
Phycoerythrin

D
both (a) and (b)
Question 3
1 / -0

In mosses, gametophyte has $2$ stages. What are these stages?

A
$1^{st}$ stage is sporogonium phase and $2^{nd}$ protonema stage.

B
$1^{st}$ stage is protonema and the $2^{nd}$ stage is leafy stage.

C
$1^{st}$ stage is gemmae formation and $2^{nd}$ one is meiosis.

D
$1^{st}$ stage is zygote and $2^{nd}$ one is spore mother cell.
Solution
- In mosses, gametophyte has two stages. The first stage is the protonema stage, which develops directly from a spore. It is a creeping, green, branched, and frequently filamentous stage.
- The second stage is the leafy stage, which develops from the secondary protonema as a lateral bud. They consist of upright, slender axes bearing spirally arranged leaves.
- They are attached to the soil through multicellular and branched rhizoids. This stage bears the sex organs.
So, the correct answer is option B.
Question 4
1 / -0

Minimum number of chromosomes in algae is _______.

A
$n=2$

B
$n=8$

C
$n=10$

D
$n=46$
Question 5
1 / -0

Which of the following plant do not transpire?

A
Algae

B
Fungi

C
Submerged hydrophytes

D
All the above
Solution
- Submerged hydrophytes do not show transpiration, because they are submerged in water.
- Fungi do not come under plants.
- Algae do not have leaves and stomatal pores. So, they also do not show transpiration.
- Thus, the correct option is D.
Question 6
1 / -0

Choose the correct statement:

A
bryophytes can live in soil but are dependent on water for sexual reproduction

B
sex organ in bryophytes are unicellular

C
Main plant body in bryophytes are gametophytes , differentiated into true root , stem and leaves

D
Common examples of liverworts is Polytrichum

Solution

Correct Option: A
Explanation:
Bryophytes are known as 'amphibians of plant kingdom' because they are adapted to land as well as water habitats.
In their vegetative structure, bryophytes have become adapted to land.
But they depend on water for sexual reproduction because the swimming habit is retained by their male gametes, the antherozooids.

Question 7

1 / -0

The gametophyte is always dioecious in

All pteridophytes

Gymnosperms only

Angiosperms

All spermatophytes

Question 8

1 / -0

Largest arechegonia present in ....

$Pteropsida$

$Mosses$

$Angiosperms$

$Gymnosperms$

Question 9

1 / -0

In Chlamydomonas (a green algae) the number of chloroplast per cell is?

$1$

$20$

$50$

$10$

Solution

Chlamydomonas is a unicellular flagellated green algae. They contain cup-shaped chloroplasts. The number of chloroplasts varies in green algae from 1-100. In Chlamydomonas reinhardtii, there are only one chloroplast.

So, the correct answer is "1".

Question 10

1 / -0

The plant group that produces spores and embryos but lacks vascular tissues and seeds is?

Pteridophyta

Rhodophyta

Bryophyta

Phaeophyta

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Plant Kingdom Test - 80

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Plant Kingdom Test - 80

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SHARING IS CARING

Question 1

Ectocarpus and Dictyota

Gelidium and Gracilaria

Ectocarpus and Sargassum

Spirogyra and Chara

Solution

Question 2

Phycocyanin

Carotene

Phycoerythrin

both (a) and (b)

Question 3

1st1^{st}1st stage is sporogonium phase and 2nd2^{nd}2nd protonema stage.

1st1^{st}1st stage is protonema and the 2nd2^{nd}2nd stage is leafy stage.

1st1^{st}1st stage is gemmae formation and 2nd2^{nd}2nd one is meiosis.

1st1^{st}1st stage is zygote and 2nd2^{nd}2nd one is spore mother cell.

Solution

Question 4

n=2n=2n=2

n=8n=8n=8

n=10n=10n=10

n=46n=46n=46

Question 5

Algae

Fungi

Submerged hydrophytes

All the above

Solution

Question 6

bryophytes can live in soil but are dependent on water for sexual reproduction

sex organ in bryophytes are unicellular

Main plant body in bryophytes are gametophytes , differentiated into true root , stem and leaves

Common examples of liverworts is Polytrichum

Solution

Question 7

All pteridophytes

Gymnosperms only

Angiosperms

All spermatophytes

Question 8

PteropsidaPteropsidaPteropsida

MossesMossesMosses

AngiospermsAngiospermsAngiosperms

GymnospermsGymnospermsGymnosperms

Question 9

111

202020

505050

101010

Solution

Question 10

Pteridophyta

Rhodophyta

Bryophyta

Phaeophyta

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$1^{st}$ stage is sporogonium phase and $2^{nd}$ protonema stage.

$1^{st}$ stage is protonema and the $2^{nd}$ stage is leafy stage.

$1^{st}$ stage is gemmae formation and $2^{nd}$ one is meiosis.

$1^{st}$ stage is zygote and $2^{nd}$ one is spore mother cell.

$n=2$

$n=8$

$n=10$

$n=46$

$Pteropsida$

$Mosses$

$Angiosperms$

$Gymnosperms$

$1$

$20$

$50$

$10$