Algae Flashcards

1
Q

Which organisms are the first group of plants with chlorophyll?

A

Algae

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2
Q

General characteristics of algae

A
  • Chlorophyll and carotenoid present
  • No vascular bundles; the body called thallus
  • Mostly aquatic to suit reproductive activities
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3
Q

What kind of pigments can be found in algae?

A

Chlorophyll, Carotenoid, Xanthophyll, Phycobilin, Biliproteins

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4
Q

What kind of chlorophyll is usually found in algae?

A

Chlorophyll A

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5
Q

What are the types of cell walls found in algae?

A
  • Silicified
  • Cellulosic
  • Mucopolymeric (Amino acids and amino sugars)
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6
Q

In which prokaryotes can mucopolymeric cell walls be found?

A

Cyanobacteria

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7
Q

What are the types of flagella found in algae?

A

Whiplash(unbranched) and tinsel (branched)

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8
Q

What are the types of flagella arrangment we have in alage?

A

Isokont (all flagella are of the same shape and size)
Heterokont (all flagella have different shapes and sizes)
Stephanokont (flagella arranged in a ring)

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9
Q

What are the types of food reserve in algae?

A
  • Starch
  • Oil
  • Glycogen
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10
Q

Classification of algae based on habitat

A
Epiphytic (on organisms)
Epipelic (on rocks)
Endopelic (in rocks)
Episammon (on sediments)
Endolithic (In soil)
Epilithic (on soil)
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11
Q

What are the forms in which algae exist?

A
Unicellular
Multicellular
Motile (chlamydomonas)
Non-motile (chlorella)
Filamentous (spirogyra)
In colonies (volvox)
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12
Q

What are the types of reproduction in algae?

A
  • Asexual
  • Vegetative
  • Sexual
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13
Q

What are the types of sexual reproduction in algae?

A

Isogamy
Anisogamy
Oogamy

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14
Q

Isogamy

A

Gametes that form a zygote are of the same shape and size. They are morphologically and physiologically the same

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15
Q

Anisogamy

A

Gametes are not of the same size and shape. The bigger gamete is assumed to be the female gamete.

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16
Q

Oogamy

A

Here, the male and female gametes are very different and easily identifiable.

17
Q

Division

A

-phyta

18
Q

Class

A

-phyceae

19
Q

Order

A

-ales

20
Q

Family

A

-aceae

21
Q

What are the different plant divisions under algae?

A

Can Cole Eat Brown Rice, Pick Corn, Play Xylophone?

  • Cyanobacteria
  • Chlorophyta
  • Euglenophyta
  • Bacillariophyta
  • Rhodophyta
  • Phaeophyta
  • Chrysophyta
  • Pyrrhophyta
  • Xanthophyta
22
Q

Cyanobacteria

A
  • Nostoc

- Anabaena

23
Q

Chlorophyta

A
  • Volvox

- Chlorella

24
Q

Euglenophyta

A
  • Euglena
25
Q

Bacillariophyta

A
  • Navicula
  • Pinnuaria
  • Cymbella
  • Eunolia
26
Q

Rhodophyta

A

Polysiphonia

27
Q

Phaeophyta (Brown Algae)

A
  • Fucus

- Sargassum

28
Q

Chrysophyta (Golden Brown)

A
  • Synura

- Paraphysomonas

29
Q

Pyrrophyta (Dinoflagellates)

A
  • Ceratium

- Peridinium

30
Q

Xanthophyta

A
  • Vaucheria
31
Q

Economic importance of algae

A

They are used in industrial processes as thickening agents

32
Q

Ecological importance of algae

A

They release O2 into the atmosphere through photosynthesis