Algae

Question 1

Isogamous Gametes

Answer 1

1) Ulothrix, Spirogyra - NCERT
2) Clamydomonas Debarnum
3) Ectocarpus
4) Cladophora

Question 2

Anisogamous Gametes

Answer 2

1) Eudorina - NCERT
2) Clamydomonas Brauni

Question 3

Oogamous gametes

Answer 3

1) Volvox, Fucus - NCERT
2) Clamydomonas Coccifera
3) Sargassum
4) Chara

Question 4

Chlorophyceae Types

Answer 4

1. Unicellular Green Algae
   - Clamydomonas
   - Chlorella
   - Acetabulleria
2. Multicellular Filamentous
   - Ulothrix
   - Spirogyra
3. Multicellular Branched
   - Cladophora
   - Chara
4. Multicellular Thalloid
   - Ulva Ulva (sea lettuce)
5. Colonial
   -Volvox (coenobial colony)
6. Parasitic
   - Cephaleuros (red rust of tea)

Question 5

Pheophyceae Examples

Answer 5

1. Laminaria
2. Fucus
3. Dictyota
4. Sargassum
5. Macrocystis ( Kelp: large sized brown algae, 60 - 100 m)

Question 6

Life cycle of algae

Answer 6

Most algae are haploid so haplontic life cycle but some are diploid (mainly brown algae)

1. Diplontic - fucus
2. Haplo-diplontic - Ectocarpus, Kelp, Polysiphonia