The SRP and the nascent polypeptide chain–ribosome complex bind to the SRP receptor in the ER membrane. This interaction is strengthened by the binding of GTP to both the SRP and its receptor.

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Algae

They exist as-

Microscopic Unicellular- Chlamydomonas

Colonial Forms- Volvox 

filamentous forms- Ulothrix and Spirogyra

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Reproduction

Vegetative reproduction-   by fragmentation

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Reproduction

Asexual reproduction-  by spore formation (zoospores)

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Reproduction

sexual reproduction-  by fusion of two gametes

Isogamous (Spirogyra), Anisogamous (Chlamydomonas) or Oogamous (Volvox).

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Algae are divided into three main classes;

Chlorophyceae  (Green Algae)

Phaeophyceae  (Brown Algae)

Rhodophyceae  (Red Algae)

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