Plant Kingdom Test

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Plant Kingdom Test - 97

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Weekly Quiz Competition

Question 1
1 / -0

Select the incorrect statement regarding reproduction in Rhodophyceae.

A
Asexual reproduction occurs by non-motile spores.

B
Sexual reproduction occurs by motile gametes.

C
Sexual reproduction is oogamous.

D
Complex post-fertilisation developmental events occur
Solution
- Rhodophyceae are red algae found majorly in the marine environment with a small percentage of freshwater species.
- Asexual reproduction occurs through non-motile spores like monospore, tetraspore, etc.
- Sexual reproduction is an advanced oogamous type where the male gamete, the spermatium is non-motile. It reaches the female reproductive structure the carpogonium and reaches the egg or the oogonium through a structure called the trichogyne.
- Fertilization is facilitated by water currents as none of the gametes are motile. The post-fertilization changes in Rhodophyceae are complex giving rise to triphasic life cycles.
So, the correct answer is option B.
Question 2
1 / -0

The members of Phaeophyceae or brown algae are found primarily in / on

A
freshwater

B
marine habitat

C
terrestrial habitat

D
rock

Solution

Brown algae or Phaeophyta "include" about 2000 species. Most of the them are marine except few, e.g., Pleuroctadia, Heribandiella and Bodanella, which are found in freshwater in European countries.
Question 3
1 / -0

Which of the following statement is incorrect regarding bryophytes?

A
The female sex organ is flask shaped

B
The antherozoids are released into water

C
The antherozoids are biflagellate

D
Zygote formed undergoes meiosis immediately

Solution

Zygote formed In bryophytes is the beginning of the sporophytic generation.
It will repeatedly divide through mitosis and later differentiate to form a sporophytic plant body. Sporophyte comprises of stalk and capsule in case of bryophytes. Sporangium is present within the capsule that contains spore mother cells which will undergo meiosis to form haploid spores. Later these spores germinate to produce a gametophytic body.
So, the correct option is D.
Question 4
1 / -0

The number of division with the plants having vascular is _______.

A
$$4$$

B
$$2$$

C
$$1$$

D
$$3$$

Solution

A widely used classification of vascular plants has recognized four divisions: psilopsida, lycopsida, sphenopsida pteropsida. Thus the correct option is A.
Question 5
1 / -0

Identify the diagram shown as well as the related right class and name of sex organs and select the right option.

Name of Organism Class
$$(1)$$ Acetabularia Rhodoplayceae
$$(2)$$ Chlamydomonas Chlorophyceae
$$(3)$$ Chara Chlorophyceae
$$(4)$$ Chara Phaeophyceae

A
1

B
2

C
3

D
4

Solution

The given diagram is of chara. It is a green algae and belongs to the class- chlorophyceae.
It is a monoecious plant means have both male and female sex organ on the same plant. Upper part of flower is a female sex organ known as Oogonium and lower part of flower which is circular in shape is a male sex organ and known as Antheridium.
Question 6
1 / -0

Which algal members reproduce exclusively by non-motile spores and non-motile sexual gametes?

A
Phaeophyceae

B
Rhoddophyceae

C
Cyanophyceae

D
Chrysophyceae

Solution

These are a large group of multicellular algae which include seaweeds. They are also called brown algae. They are brown due to a pigment called fucoxanthin. Their cells are eukaryotic.
So, the correct option is 'Phaeophyceae'.
Question 7
1 / -0

Porphyra differs from Fucus in

A
Having advanced type of sexual reproduction

B
Absence of cellulose in cell wall

C
Photosynthetic pigment of reaction centre in photosystem

D
Nature of male gametes and spores

Solution

A.Correct option - A
B.Explanation for correct option -
Porphyra belongs to red algae and has phycoerythrin in their cell and Fucus is a brown algae and have fucoxanthin in their cell.
So the correct answer is "Photosynthetic pigment of reaction centre in photosystem".
Question 8
1 / -0

Out of the following four statements how many of them are correct for Fucus.
I.Life-cycle is diplontic.
II.Fertilisation is internal.
III.Sexual reproduction Oogamous
IV.Frond is photosynthetic

A
$$4$$

B
$$3$$

C
$$2$$

D
$$1$$
Question 9
1 / -0

Which algae is chew as tobacco in Scotland?

A
Porphyra

B
Rodimenia palmata

C
Chlorella

D
Spirogyra

Solution

Porphyra is a seaweed that grows in cold water, shallow seawater which is used as a chew as tobacco in Scotland.
So the correct option is 'Porphyra.'
Question 10
1 / -0

The common features between Chara and Marchantia are?

A
Dioecious

B
Flagellated antherozoids

C
Jacketed sex organs

D
Protogynous

E
Female sex organ is nucule or oogonium

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	Name of Organism	Class
$$(1)$$	Acetabularia	Rhodoplayceae
$$(2)$$	Chlamydomonas	Chlorophyceae
$$(3)$$	Chara	Chlorophyceae
$$(4)$$	Chara	Phaeophyceae

Plant Kingdom Test - 97

Result

Plant Kingdom Test - 97

Score

-

Rank

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SHARING IS CARING

Question 1

Asexual reproduction occurs by non-motile spores.

Sexual reproduction occurs by motile gametes.

Sexual reproduction is oogamous.

Complex post-fertilisation developmental events occur

Solution

Question 2

freshwater

marine habitat

terrestrial habitat

rock

Solution

Question 3

The female sex organ is flask shaped

The antherozoids are released into water

The antherozoids are biflagellate

Zygote formed undergoes meiosis immediately

Solution

Question 4

$$4$$

$$2$$

$$1$$

$$3$$

Solution

Question 5

1

2

3

4

Solution

Question 6

Phaeophyceae

Rhoddophyceae

Cyanophyceae

Chrysophyceae

Solution

Question 7

Having advanced type of sexual reproduction

Absence of cellulose in cell wall

Photosynthetic pigment of reaction centre in photosystem

Nature of male gametes and spores

Solution

Question 8

$$4$$

$$3$$

$$2$$

$$1$$

Question 9

Porphyra

Rodimenia palmata

Chlorella

Spirogyra

Solution

Question 10

Dioecious

Flagellated antherozoids

Jacketed sex organs

Protogynous

Female sex organ is nucule or oogonium

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