Algae

IMPORTANT

Algae: Overview

This topic consists of various concepts like Algae,Vegetative Reproduction in Algae,Asexual Reproduction in Algae, etc.

Important Questions on Algae

EASY
IMPORTANT

A research student collected certain alga and found that its cells contained both chlorophyll a and chlorophyll b as well as phycoerythrin. The alga belongs to

EASY
IMPORTANT

Floridean starch is found in

EASY
IMPORTANT

Ulothrix can be described as a

EASY
IMPORTANT

Brown algae is characterised by the presence of

HARD
IMPORTANT

Ulothrix filaments produce

MEDIUM
IMPORTANT

Match column-I with column-II and choose the correct option:

  Column-I   Column-II
A. Phaeophyceae I. Funaria, Sphagnum
B. Rhodophyceae II. Equisetum, Pteris
C. Pteridophytes III. Ectocarpus, Laminaria
D. Bryophytes IV. Polysiphonia, Gracilaria

EASY
IMPORTANT

An alga very rich in protein is

EASY
IMPORTANT

Agar is commercially obtained from

MEDIUM
IMPORTANT

The absence of chlorophyll, in the lowermost cell of Ulothrix, shows

EASY
IMPORTANT

In Chlorophyceae, sexual reproduction occurs by

EASY
IMPORTANT

Chloroplast of Chlamydomonas is

EASY
IMPORTANT

In Ulothrix/Spirogyra, reduction division (meiosis) occurs at the time of:

EASY
IMPORTANT

Mannitol is the stored food in:

EASY
IMPORTANT

The common mode of sexual reproduction in Chlamydomonas is   

HARD
IMPORTANT

The product of conjugation in Spirogyra or fertilization of Chlamydomonas is

EASY
IMPORTANT

Sexual reproduction involving fusion of two cells in Chlamydomonas is 

EASY
IMPORTANT

Which of the following is incorrectly matched?

EASY
IMPORTANT

Who pioneered the term algae?

MEDIUM
IMPORTANT

Read the following statements:

I. Food is stored in the form of laminarin.

II. Cell wall is covered on the outside by a coating of algin.

III. Reproduce asexually by non-motile spores.

IV. All the members contain pyrenoid in chloroplast.

Select the pair of incorrect statements with respect to members of Phaeophyceae.

MEDIUM
IMPORTANT

Question Image

In the above figure label A, B, C and D respectively are :