What are differences between thallophta and spermatophyta
Answers
1. They are mostly aquatic.
2 The thallus consists of a single cell to well developed uniseriate or branched filaments.
3. There is no or ill defined tissue differentiation
4. In each cell one or few chloropasts are present. In other cases instead of chloroplasts, the chromatophores are present.
5. The stomata or pores are not present
6. Generally rhizoids are not present and if present they are of simple type
7. Every cell is capable of growth and development
12. The zygote is liberated from the plant and passes into the resting stage.
13. No embryo is formed after fertilization.
14. They show ill defined homologous type of alternation of generations.
Bryophyta:
1. Mostly terrestrial and prefer damp and shady places.
2. The thalles is not filamentous except in protonema stage. It is made up of parenchymatous cells.
3. There is well defined tissue differentiation.
4. In each chlorophyllous cell many well developed chloroplasts are present.
5. The pores or stomata are present.
6. The rhizoids are present. They may be smooth walled, tuberculate or obliquely septate. The scales are also present.
7. Only the special cells are capable of growth and
12. The zygote is not liberated from the plant and does not undergo any testing period.
13. In all bryophytes the emphasis developed after fertilization.
14. They show well defined heteromorphic type of alternation of generations.
Answer:
Explanation:Thallophyta (Algae):
1. They are mostly aquatic.
2 The thallus consists of a single cell to well developed uniseriate or branched filaments.
3. There is no or ill defined tissue differentiation
4. In each cell one or few chloropasts are present. In other cases instead of chloroplasts, the chromatophores are present.
5. The stomata or pores are not present
6. Generally rhizoids are not present and if present they are of simple type
7. Every cell is capable of growth and development
12. The zygote is liberated from the plant and passes into the resting stage.
13. No embryo is formed after fertilization.
14. They show ill defined homologous type of alternation of generations.
Bryophyta:
1. Mostly terrestrial and prefer damp and shady places.
2. The thalles is not filamentous except in protonema stage. It is made up of parenchymatous cells.
3. There is well defined tissue differentiation.
4. In each chlorophyllous cell many well developed chloroplasts are present.
5. The pores or stomata are present.
6. The rhizoids are present. They may be smooth walled, tuberculate or obliquely septate. The scales are also present.
7. Only the special cells are capable of growth and
12. The zygote is not liberated from the plant and does not undergo any testing period.
13. In all bryophytes the emphasis developed after fertilization.
14. They show well defined heteromorphic type of alternation of generation