Algae Flashcards

1
Q

Algae occur in association with?

A

Fungi (K/as lichens)

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2
Q

Which algae have flagellated and same size gametes?

A

Ulothrix.

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3
Q

Gametes similar in size but are non-flagellated, in

A

Spirogyra.

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4
Q

Oogamous reproduction takes place in

A

Volvox and fucus

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5
Q

Colonial Algae example

A

Volvox

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6
Q

Name some marine algae used as food.

A

Porphyra, laminaria, sargassum

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7
Q

Name the algae which produces hydrocolloids.

A

Algin(brown algae), carrageen(red alage)

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8
Q

Agar is obtained from which alage

A

Gelidium and Gracilaria

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9
Q

Green color of chlorophyceae is due to which pigment.

A

Dominance of chlorophyll a and b

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10
Q

What is storage body of chlorophyceae is known as

A

Pyrenoids.

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11
Q

Cell wall of chlorophyceae is made of

A

Cellulose+ pectose.

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12
Q

Examples of chlorophyceae

A

Chlamydomonas, volvox, ulothrix, spirogyra and chara

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13
Q

Brown algae which have filamentous form.

A

Ectocarpus.

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14
Q

Pigments present in brown algae

A

CHL. a and c , xanthophyll and carotenoids

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15
Q

Pigments which give brown color to phyaeophyceae.

A

Xanthophyll and fucoxanthin.

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16
Q

In phyaeophyceae food is stored in which form.

A

Laminarian and mannitol

17
Q

Gelatinous coating of vegetative cells having cellulosic wall.

A

Algin

18
Q

Body parts of phyaeophyceae

A

Holdfast, stipe and frond

19
Q

Examples of phyaeophyceae

A

Ectocarpus, Dictyota, laminaria, sargassum and fucus.