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Questions
Answer the following question in your own words.
Sketch, label and describe the Spirogyra.
Sketch and label the figure of the following plant and explain them in brief.
Spirogyra
Solution
The monocotyledon flora subgenus contains Thallophyta flora, which includes Spirogyra green algae. This plant is found in fresh water and can survive only in water. Its body shape is long like a thread. Being chlorophyll, it has the ability to photosynthesize, so it can nourish itself. This multicellular fibrous body has spiral replication, and there are knots of pyrenoids (pigmentous substances) in between. It reproduces asexually, and the growth of Spirogyra occurs through the process of fragmentation.
Spirogyra
RELATED QUESTIONS
Match the proper terms from columns A and C with the description in column B.
| ‘A’ | ‘B’ | ‘C’ |
| Thallophyta | Seeds are formed in fruits. | Fern |
| Bryophyta | No natural covering on seeds. | Cycas |
| Pteridophyta | These plants mainly grow in water. | Tamarind |
| Gymnosperms | These plants need water for reproduction. | Moss |
| Angiosperms | Tissues are present for the conduction of water and food | Algae |
Complete the sentence by filling in the blank and explaining the statement.
______ plants have soft and fibre-like body.
Which of the following is not correctly matched for the organism and its cell wall degrading enzyme?
