Biology

Q.

Ribbon-shaped chloroplasts occur in

1. Riccia

2. Ulothrix

3. Chlamydomonas

4. Spirogyra

Q.

Floridean starch occurs in

1. Rhodophyceae

2. Phaeophyceae

3. Myxophyceae

4. Chlorophyceae

Q.

The yellow-green pigment is found in

1. Rhodophyta

2. Chlorophyta

3. Xanthophyta

4. Phaeophyta

Q.

Phycology deals with the study of

1. Fungi

2. Bryophytes

3. Algae

4. Microbes

Q.

Brown algae have a characteristic pigment of

1. Fucoxanthin

2. Phycocyanin

3. Haematochrome

4. Phycoerythrin

Q.

Agar is commercially received from

1. Blue-green algae

2. Green algae

3. Red algae

4. Brown algae

Q.

Fusion of two gametes which are dissimilar in size is termed

1. Isogamy

2. Zoogamy

3. Anisogamy

4. Oogamy

Q.

In Chlorophyceae, sexual reproduction occurs by

1. Isogamy and anisogamy

2. Oogamy only

3. Anisogamy and oogamy

4. Isogamy, anisogamy and oogamy

Q.

The phylogenetic system of classification is based on

1. Floral characters

2. Chemical constituents

3. Morphological features

4. Evolutionary relationships

Q.

An incorrect character of brown algae is

1. Presence of fucoxanthin

2. It remains attached to the substratum

3. Presence of chlorophyll a and b

4. Presence of chlorophyll a and c