Question

Choose the correct statements among the following: A) Carrageen is used as hydrocolloids B) Air bladders can be present in the Laminaria C) All Bryophytes show homosporous condition D) Fussion of two zoospores is called zooidogamous

• A. A, B
• B. C, D
• C. A, C
• D. B, D

Hint:

Laminaria (Brown Algae) uses air bladders for floating.

Answer 1

The Correct Option is A

Step 1: The task.
We have to choose the two correct statements.

Step 2: Statement A.
A says Carrageen is used as a hydrocolloid. This is true. Carrageen comes from red algae and acts as a thickening and gelling agent, so it is a hydrocolloid. A is correct.

Step 3: Statement B.
B says air bladders can be present in Laminaria. This is correct. Large brown algae like Laminaria can have air bladders that help them float toward light. B is correct.

Step 4: Statement C.
C says all bryophytes are homosporous. This is wrong because some bryophytes show a heterosporous condition. So C is incorrect.

Step 5: Statement D.
D defines zooidogamous as just the fusion of two zoospores. That is not right, zooidogamy describes the mode of fertilization, not a simple zoospore fusion. So D is incorrect.

Step 6: Conclusion.
The correct statements are A and B. Therefore the correct answer is "A, B". \[ \\boxed{\\text{A, B}} \]