(A) The red rust of tea is caused by the parasitic green alga $Cephaleuros$ $virescens$.This alga infects the leaves of the tea plant,leading to the f

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(A) The red rust of tea is caused by the parasitic green alga $Cephaleuros$ $virescens$.This alga infects the leaves of the tea plant,leading to the formation of reddish-brown patches.The characteristic red color is due to the presence of a pigment called $haematochrome$ within the algal cells.Similarly,$Cephaleuros$ $coffeae$ is known to attack coffee leaves.

Class 11 Biology Plant Kingdom Algae (General)

Easy

Red rust of tea is caused by

A
Cephaleuros
B
Synchytrium
C
Mucor
D
Fusarium

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Class 11

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Chapter

Plant Kingdom

Subtopic

Algae (General)

Oogamy with non-motile gametes occurs in

Medium

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Match the Column-$I$ with Column-$II$:

Column-$I$ Column-$II$

$(a)$ Zoospores $(i)$ Fusion between one large non-motile female gamete and a smaller motile male gamete.

$(b)$ Isogamous $(ii)$ Flagellated (motile) asexual spores.

$(c)$ Anisogamous $(iii)$ Gametes can be flagellated and similar in size.

$(d)$ Oogamous $(iv)$ Fusion of two gametes dissimilar in size.

Choose the correct answer from the options given below:

Column-$I$	Column-$II$
$(a)$ Zoospores	$(i)$ Fusion between one large non-motile female gamete and a smaller motile male gamete.
$(b)$ Isogamous	$(ii)$ Flagellated (motile) asexual spores.
$(c)$ Anisogamous	$(iii)$ Gametes can be flagellated and similar in size.
$(d)$ Oogamous	$(iv)$ Fusion of two gametes dissimilar in size.