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Question contain STATEMENT-1 (Assertion) and STATEMENT-2 (Reason).Each question has 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct.
Statement 1 :Mosses are evolved from algae.
Statement 2 :Protonema of mosses is similar to some greenalgae
According to some Botanists, Mosses originated from algae.Protonema of mosses is similar to certain algae.
Question contain STATEMENT-1 (Assertion) and STATEMENT-2 (Reason).Each question has 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct.
Statement 1 :Algae and fungi are grouped in thallophyta.
Statement 2 :Algae and fungi show no differentiation inthallus
On the basis of
(i)Thallus like non-vascular plant body.
(ii)Simple, unicellular non-jacketed sex organs and
(iii)No embryo development after gametic union, thealgae and fungi have long been grouped together inthallophyta. The algae and fungi are the result of parallel development and do not indicate any phylogenetic relationship.
(1)Green algae occur in fresh water, brackish water, saltwater.
(2)Habitat of Brown algae-fresh water (rare), brackish water,salt water
(3)Some red algae are found in fresh water, mostly occur in salt water, some are in brackish water.
(4)Most of the red algae are multi cellular.
(5)Red alga may occur in both well lighted regions close to water-surface and also at great depths in oceans where light penetration is little.
(6)Cell wall of red algae consists of cellulose + agar.
(7)2 – 8, equal and apical flagella in green algae
Which of the following statement(s) is/are true about gemmae?
(i)These are specialised structures by which asexualre production take place in liverworts.(ii)They are green and multicellular.
(iii)They develop in small receptacles called gemma cups.
(iv)They detach from parent body and germinate to form new individuals.
Match Column -I with Column -II.
Column I | Column II |
---|---|
A.Anthoceros | 1.Walking fern |
B.Adiantum | 2.Alga |
C.Sargassum | 3.Inferae |
D.Asterales | 4.Gametophyte |
5.Hornwort | |
6.Liverwort |
Match Column -I with Column -II.
Column I | Column II |
---|---|
A.Algae | 1.Solanum tuberosum |
B.Fungi | 2.Equisetum |
C.Angiosperm | 3.Cycas |
D.Pteridophyte | 4.Chlamydomonas |
E.Gymnosperm | 5.Rhizopus |
Match the following and choose the correct option :
Column I | Column II |
---|---|
(Classes of pteridophytes) | (Examples) |
(A)Psilopsida | 1.Selaginella |
(B)hycopsida | 2.Psilotum |
(C)Sphenopsida | 3.Dryopteris |
(D)Pteropsida | 4.Equisetum |
Which one of the following option correctly represents the type of life cycle patterns?
What structures A and B respectively indicate in the life cycle of bryophytes, pteridophytes and gymnosperms?
Choose the right option.