Which of the following is $NOT$ a component of the algal cell wall?

Reduced vascular tissue,mechanical tissue,and cuticle are characteristics of which of the following?

Alginic acid is obtained from

In which members of algae is the formation of zoospores not observed?

Most algal genera are haplontic,but some of them such as $A$,$B$,and $C$ are haplo-diplontic. Here $A$,$B$,and $C$ refer to:

Which of the following is correct regarding $Porphyra$ and $Laminaria$?