The Palmella stage is produced: | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The $Palmella$ stage is a survival mechanism observed in certain algae like $Chlamydomonas$.During unfavourable conditions,such as drought or lack

Vedclass · Accepted Answer

During unfavourable conditions

Vedclass · Answer

(B) The $Palmella$ stage is a survival mechanism observed in certain algae like $Chlamydomonas$.During unfavourable conditions,such as drought or lack of water,the flagella of the zoospores are withdrawn,and the cells become non-motile.These cells secrete a mucilaginous sheath around themselves,and they may divide to form a colony-like structure embedded in the mucilage.This aggregation is known as the $Palmella$ stage.When favourable conditions return,these cells are released and develop into new individual plants.

Column-$I$	Column-$II$
$(A)$ Blue-green algae	$(p)$ Chlamydomonas
$(B)$ Unicellular algae	$(q)$ Spirogyra
$(C)$ Filamentous algae	$(r)$ Volvox
$(D)$ Colonial algae	$(s)$ Nostoc

The $Palmella$ stage is produced:

Similar Questions

Isogamous condition with non-flagellated gametes is found in

In $Spirogyra$,which of the following statements is correct?

Column-$I$ lists various types of algae, and Column-$II$ lists examples of algae. Select the correct option.
Column-$I$ Column-$II$
$(A)$ Blue-green algae $(p)$ Chlamydomonas
$(B)$ Unicellular algae $(q)$ Spirogyra
$(C)$ Filamentous algae $(r)$ Volvox
$(D)$ Colonial algae $(s)$ Nostoc

Which pigment is present in red algae in higher proportion?

$A$ : Sexual reproduction shows considerable variation in the type and formation of sex cells in members of $Chlorophyceae$.
$R$ : It may be isogamous,anisogamous and oogamous.

Vedclass Test Series

Exam Paper Generator

Online Exam Module