The growth of pollen tube towards ovules is due to
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Answer:
The growth of pollen tubes towards ovules is due to chemotropism. Chemo-tropism is growth of organisms such as bacteria and plants, navigated by chemical stimuli from outside of the organism or organism's part.
The response of the organism or organism part is termed 'positive' if the growth is towards the stimulus or 'negative' if the growth is away from the stimulus.
Fertilization of flowers by pollen is achieved because the ovary releases chemicals that produce a positive chemo-tropic response from the developing pollen tube.
Explanation:
Answer. ...
A)
The growth of pollen tubes towards ovules is due to chemotropism. Chemo-tropism is growth of organisms such as bacteria and plants, navigated by chemical stimuli from outside of the organism or organism's part.
The response of the organism or organism part is termed 'positive' if the growth is towards the stimulus or 'negative' if the growth is away from the stimulus.
Fertilization of flowers by pollen is achieved because the ovary releases chemicals that produce a positive chemo-tropic response from the developing pollen tube.
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