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Read the following statements w.r.t. bry...

Read the following statements w.r.t. bryophytes.
(a) They are homosporous.
(b) They are first embryophytes.
(c) Zygote does not undergo equational division.
(d) Water acts as transfer medium for antherozoids to reach the archegonia.
(e) In mosses, spores germinate to form filamentous gametophyte. Select the correct option.

A

1. (a), (b), (c) & (e)

B

2. All except (c)

C

3. (b), (c),(d) & (e)

D

4. (a), (b) & (d) only

Text Solution

AI Generated Solution

The correct Answer is:
To determine the correct statements regarding bryophytes, we will analyze each statement one by one. ### Step 1: Analyze Statement A **Statement A:** They are homosporous. - **Explanation:** Bryophytes produce only one type of spore, which means they are homosporous. This is correct as all bryophytes produce spores of the same size and type. **Hint:** Homosporous means producing only one type of spore. ### Step 2: Analyze Statement B **Statement B:** They are the first embryophytes. - **Explanation:** Bryophytes are indeed the first land plants (embryophytes) that evolved from aquatic ancestors. This statement is correct. **Hint:** Embryophytes refer to land plants, and bryophytes are the earliest among them. ### Step 3: Analyze Statement C **Statement C:** Zygote does not undergo equational division. - **Explanation:** In bryophytes, the zygote undergoes mitotic division (equational division) to form an embryo, which develops into a diploid sporophyte. Therefore, this statement is incorrect. **Hint:** Zygotes in bryophytes undergo mitotic division to develop into sporophytes. ### Step 4: Analyze Statement D **Statement D:** Water acts as a transfer medium for antherozoids to reach the archegonia. - **Explanation:** This statement is correct. Bryophytes require water for the movement of male gametes (antherozoids) to the female reproductive structure (archegonia). **Hint:** Water is essential for fertilization in bryophytes. ### Step 5: Analyze Statement E **Statement E:** In mosses, spores germinate to form filamentous gametophyte. - **Explanation:** This statement is correct. In mosses, the spores germinate to form a filamentous structure called protonema, which is the first stage of the gametophyte. **Hint:** Protonema is the initial filamentous stage that develops from the germinating spore. ### Conclusion After analyzing all the statements: - **Correct Statements:** A, B, D, E - **Incorrect Statement:** C Thus, the correct option is "all except C." ### Final Answer The correct option is: **All except C.**
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AAKASH INSTITUTE ENGLISH-MOCK TEST 14-EXAMPLE
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