In the $Chlorophyta$ (green algae),the reserve food consisting of protein surrounded by starch forms a compact body termed:

Which of the following algae are used as food supplements by space travellers?

Presence of a basal rhizoidal cell in $Ulothrix$ is an example of:

Select the correct option from the given list regarding algal classes and their stored food materials:
$(1)$ Rhodophyceae - Pyrenoids
$(2)$ Phaeophyceae - Laminarin
$(3)$ Bryophytes - Mannitol
$(4)$ Chlorophyceae - Floridean starch

The largest unicellular plant,$Acetabularia$,belongs to which of the following groups?

Which of the following statements are true regarding the figure given below?
$(i)$ It shows oogamy and post-fertilization development.
$(ii)$ Male gamete is small and motile.
$(iii)$ Stored food is floridean starch.
$(iv)$ Pectin,cellulose,and polysulphate esters are present in the cell wall.