Plant Kingdom

Which one of the following statements is wrong?

1. Chlorella and Spirulina are used as space food.
2. Mannitol is stored food in Rhodophyceae.
3. Algin and carrageenan are products of algae.
4. Agar-agar is obtained from Gelidium and Gracilaria.

In which of the following, gametophyte is not independent free living?

1. Pteris
2. Pinus
3. Funaria
4. Marchantia

Read the following five statements (A to E) and select the option with all correct statements.

1. A, D and E
2. B, C and E
3. A, C and D
4. B, C and D

Male gametes are flagellated in

1. Ectocarpus
2. Spirogyra
3. Polysiphonia
4. Anabaena.

Which one of the following is wrong about Chara?

1. Upper oogonium and lower round antheridium
2. Globule and nucule present on the same plant
3. Upper antheridium and lower oogonium
4. Globule is male reproductive structure

Which of the following is responsible for peat formation?

1. Marchantia
2. Riccia
3. Funaria
4. Sphagnum

Male gametophyte with least number of cells is present in

1. Pteris
2. Funaria
3. Lilium
4. Pinus.

Which one of the following shows isogamy with non-flagellated gametes?

1. Sargassum
2. Ectocarpus
3. Ulothrix
4. Spirogyra

An alga which can be employed as food for human being is :

1. Polysiphonia
2. Chlorella
3. Ulothrix
4. Spirogyra

Select the wrong statement

1. In Oomycetes, female gamete is smaller and motile, while male gamete is larger and non-motile.
2. Chlamydomonas exhibits both isogamy and anisogamy and Fucus shows oogamy.
3. Isogametes are similar in structure, function and behaviour.
4. Anisogametes differ either in structure, function or behaviour.