Sperms of liverworts, mosses, ferns move towards archegonia, in response to uncleic acid released by the ovum. This is an example of ____________?
Correct answer: B. Chemotactic movement
- A. Chemotropic movement
- B. Chemotactic movement
- C. Chemosastic movement
- D. Haptonastic movement
Explanation
Chemotaxis is the directed movement of a cell in response to a chemical substance, as sperm move toward chemicals released by the ovum. Chemotropism refers to directional growth of a plant organ, so option a is a common mistake caused by confusing cell movement with growth movement.
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