Plant Kingdom Test

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Plant Kingdom Test - 44

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Weekly Quiz Competition

Question 1
1 / -0

Phycobilins absorbs light of wavelength

A
670 - 700 nm

B
610 - 650 nm

C
500 - 650 nm

D
420 - 520 nm
Question 2
1 / -0

Chlamydomonas shows

A
Isogamy

B
Anisogamy

C
Oogamy

D
All of the above
Solution
The algae reproduce by vegetative, asexual, and sexual methods.
Vegetative reproduction is by fragmentation. Asexual reproduction is by the production of different types of spores, the most common being the zoospores.
Sexual reproduction takes place through the fusion of two gametes. These gametes can be flagellated and similar in size. Such reproduction is called isogamous.
The fusion of two gametes dissimilar in size, as in species of is termed as anisogamous.
The fusion between one large, nonmotile (static) female gamete and a smaller, motile male gamete is termed oogamous, Hence, Chlamydomonas shows Isogamy, Anisogamy, and Oogamy.
So, the correct answer is "All of the above'.
Question 3
1 / -0

The colour of red snow is due to

A
Chlamydomonas sowiae

B
Chlamydomonas nivalis

C
Both A and B

D
Spirogyra
Solution
- Chlamydomonas nivalis is a unicellular red-colored photosynthetic green alga that is found in the snowfields of the alps and polar regions all over the world.
- They are one of the main algae responsible for causing the phenomenon of watermelon snow, where patches of snow appear red or pink. Hence, the color of red snow is due to Chlamydomonas nivalis.
- So, the correct answer is "Chlamydomonas nivalis'.
Question 4
1 / -0

An important difference between the zoospores and aplanospores is that

A
Aplanospores are uninucleate while zoospores are binucleate.

B
Aplanospores are smaller while zoospores are larger.

C
Aplanospores are non-motile while zoospores are motile.

D
Both aplanospores and zoospores are motile.
Solution
- Aplanospores are nonmotile asexual spores found in certain algae and fungi. They are formed from a part of a protoplast of a vegetative cell.
- Zoospores are flagellated (motile) asexual spores.
So, the correct answer is "Aplanospores are non-motile while zoospores are motile'.
Question 5
1 / -0

During zoospore formation, Chlamydomonas

A
Develops a very thick wall

B
Loses the chloroplast

C
Loses flagella

D
All of the above
Question 6
1 / -0

Unicellular green algae is

A
Ulothrix

B
Spirogyra

C
Chlamydomonas

D
All of the above
Question 7
1 / -0

A Chlamydomonas plant is left exposed in the mud. What would be its means of survival?

A
Formation of aplanospores

B
Palmella stage

C
Formation of hypnospores

D
All of the above
Solution
- The palmella stage in Chlamydomonas is formed under unfavorable conditions as a shortage of water, excess salts, etc.
- The protoplast of the parent cell divides to make many daughter protoplasts but they do not form zoospores. The parent cell wall gelatinizes to make a mucilaginous sheath around daughter protoplasts. Hence, A Chlamydomonas plant is left exposed in the mud. Palmella stage is a means of survival.
- So, the correct answer is "Palmella stage'.
Question 8
1 / -0

All algae have two photosynthetic pigments in common

A
Chlorophyll $$a$$ and chlorophyll $$b$$

B
Chlorophyll $$b$$ and carotenes

C
Chlorophyll $$a$$ and carotenes

D
Phycobilins and carotenes
Solution
- The algae are divided into three main classes: Chlorophyceae, Phaeophyceae, and Rhodophyceae.
- Chlorophyceae, Phaeophyceae, and Rhodophyceae have two photosynthetic pigments in common are Chlorophyll a and carotenes.
- So, the correct answer is "Chlorophyll a and carotenes'.
Question 9
1 / -0

A parasitic green algae is

A
Chlorella

B
Ulva

C
Cladophora

D
Cephaleuros
Solution
- Cephaleuros parasiticus is a plant pathogenic member of the Chlorophyta or green algae.
- It infects several commercially important crops including tea.
- So, the correct answer is "Cephaleuros'.
Question 10
1 / -0

An edible rhodophyte is

A
Polysiphonia

B
Batrachospermum

C
Porphyra

D
Corallina

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Plant Kingdom Test - 44

Result

Plant Kingdom Test - 44

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SHARING IS CARING

Question 1

670 - 700 nm

610 - 650 nm

500 - 650 nm

420 - 520 nm

Question 2

Isogamy

Anisogamy

Oogamy

All of the above

Solution

Question 3

Chlamydomonas sowiae

Chlamydomonas nivalis

Both A and B

Spirogyra

Solution

Question 4

Aplanospores are uninucleate while zoospores are binucleate.

Aplanospores are smaller while zoospores are larger.

Aplanospores are non-motile while zoospores are motile.

Both aplanospores and zoospores are motile.

Solution

Question 5

Develops a very thick wall

Loses the chloroplast

Loses flagella

All of the above

Question 6

Ulothrix

Spirogyra

Chlamydomonas

All of the above

Question 7

Formation of aplanospores

Palmella stage

Formation of hypnospores

All of the above

Solution

Question 8

Chlorophyll $$a$$ and chlorophyll $$b$$

Chlorophyll $$b$$ and carotenes

Chlorophyll $$a$$ and carotenes

Phycobilins and carotenes

Solution

Question 9

Chlorella

Ulva

Cladophora

Cephaleuros

Solution

Question 10

Polysiphonia

Batrachospermum

Porphyra

Corallina

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