Question

Explain briefly abt algae:-
Give more than 20 points.

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Answer 1

$\huge{\boxed{\green{\it{Algae, it's\; uses \;and\; its \;types:-}}}}$

What is Algae?

≈> Algae are chlorophyll bearing, simple, thalloid, autotrophic and large aquatic organisms.

Some of the main points about Algae are :-

• In Algae root, stem, leaf and xylem are present but phloem is absent.
• Reproductive organs are single and they dont produce embryo.
• It is uni parental. Cell wall of the parent is not passing on progeny.
• Asexual reproduction is by the production of different types of spores, the most common being the zoospores.
• Sexual reproduction takes place through fusion of two gamates.
• These gamates may be flagellated and similar in size or non-flagellated and similar in size. Such reproduction is called isogamous.
• Fusion of two gamates dissimilar in size, as in species of udorine is called anisogamus.
• Fusion between large non motile female gamate with smaller motile male gamate is called as Oogamous.

Uses of Algae :-

• Chlorella is a unicellular Algae rich in proteins is used as food supplement even by space travellers.
• Agar is one of the commercial products obtained from Gelidium are used to grow microbes in reparation of ice creams & jellies.
• Porphyra, laminaria and sargassum are among the 70 species of marine Algae used as food.
• Iodine & bromine are extracted from marine algae.

Types of Algae :

There are 3 types:-

• Chlorophyceae. [Green Algae]
• Phaeophyceae. [Brown Algae]
• Rhodophycea. [Red Algae]

Answer 2

Explanation:

What is Algae?

≈> Algae are chlorophyll bearing, simple, thalloid, autotrophic and large aquatic organisms.

Some of the main points about Algae are :-

In Algae root, stem, leaf and xylem are present but phloem is absent.

Reproductive organs are single and they dont produce embryo.

It is uni parental. Cell wall of the parent is not passing on progeny.

Asexual reproduction is by the production of different types of spores, the most common being the zoospores.

Sexual reproduction takes place through fusion of two gamates.

These gamates may be flagellated and similar in size or non-flagellated and similar in size. Such reproduction is called isogamous.

Fusion of two gamates dissimilar in size, as in species of udorine is called anisogamus.

Fusion between large non motile female gamate with smaller motile male gamate is called as Oogamous.

Uses of Algae :-

Chlorella is a unicellular Algae rich in proteins is used as food supplement even by space travellers.

Agar is one of the commercial products obtained from Gelidium are used to grow microbes in reparation of ice creams & jellies.

Porphyra, laminaria and sargassum are among the 70 species of marine Algae used as food.

Iodine & bromine are extracted from marine algae.

Types of Algae :

There are 3 types:-

Chlorophyceae. [Green Algae]

Phaeophyceae. [Brown Algae]

Rhodophycea. [Red Algae]