Which of the following algae produce Carrageen?

1.	Red algae	2.	Blue-green algae
3.	Green algae	4.	Brown algae

Gemmae are present in:

1. Some Gymnosperms

2. Some Liverworts

3. Mosses

4. Pteridophytes

Genera like Selaginella and Salvinia produce two kinds of spores. Such plants are known as

Which of the following algae contains mannitol as reserve food material?

The main photosynthetic pigments of green algae are

Green algae can store food in all of the following forms, except

In all members of algae inner cell wall is cellulosic however outer cell wall can be of different types. In green algae outer cell wall is made up of

Examine the figure given below and select the right option giving all the four parts (A, B, C and D) correctly identified:

Examine the figures A, B, C and D. In which one of the four options all the items, A, B, C and D are correct?

Options : 

If you are asked to classify the various algae into distinct groups, which of the following characters you should choose?

1. Types of pigments present in the cell

2. Nature of stored food materials in the cell

3. Structural organisation of thallus

4. Chemical composition of the cell wall