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Question
Define - Thallus.
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Solution
Thallus refers to a plant body that is not differentiated into roots, stems, and leaves. Example: Algae.
RELATED QUESTIONS
An example for colonial form of algae is
The first land plants are
Match the following.
| Cyanophyceae | Green algae |
| Chlorophyceae | Blue-green algae |
| Phaeophyceae | Red algae |
| Rhodophyceae | Brown algae |
Write any three economic importance of algae.
Write the differences between algae and fungi.
Which among the following has specialised tissue for conduction of water?
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Reason (R): They do not have a true nucleus.
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______ is a blue-green algae.
Polvsiohonia is a ______ alga.
Classification of algae was given by ______.
______ is an example of symbiosis between algae & fungi.
Agar-Agar is extracted from red algae.
The cell wall of algae is made up of a chemical substance called chitin.
What is phytoplankton?
Mention two forms of algae with examples.
In the members of Phaeophyceaе.
- Asexual reproduction occurs usually by biflagellate zoospores.
- Sexual reproduction is by oogamous method only.
- Stored food is in the form of carbohydrates which is either mannitol or laminarin.
- The major pigments found are chlorophyll a, c and carotenoids and xanthophyll.
- Vegetative cells have a cellulosic wall, usually covered on the outside by gelatinous coating of algin.
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