A protonema is a thread like chain of cells that forms the earliest stage (the haploid phase) of in the life cycle of mosses and liverworts. When a moss first grows from the spore it grow as a protonema which develops into a leafy gametophyte.
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Read the following statements carefully (i) Protonema is found in mosses and is absent in liverworts. (ii) In Marchantia,the sporophyte is divided into the foot, seta and capsule (iii) Archegonia are partially embedded in pteridophytes (iv) Gymnosperms do not possess vessels in xylem except in some gnetophytes.
Spirogyra differs from moss protonema in having
Assertion: Mosses are evolved from algae. Reason: Protonema of mosses is similar to some green algae.
Which of the following organisms are multiplied by fragmentation? 1. Fungi 2. All algae 3. Protonema of mosses
Find set of features related to Funaria a. Protonema b. Prothallus c. Gametophore d. Thallus body e. NCC in antheridium f. Haplodiplontic g. True plant organs in sporophyte h. Fragmentation
