Which of following statement is correct for pollen tube

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1.Sexual Reproduction in Flowering Plants

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Which of the following statement is correct for the pollen tube

It shows chemotactic movement

It shows only tip growth

It is composed of three non-cellular zones

It shows radial cytoplasmic streaming

(AIPMT-1993)

Solution

(a)The movement of pollen tube towards embryosac though style is chemotactic as it secrets pectinases and other hydrolytic enzymes to create a passage for its entry into style.

Standard 12

Biology

Tectum, baculum, foot layer are the different parts of

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In some members of which of the following pairs of families, pollen grains retain their viability for months after release ?

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(NEET-2021)

What is correct for parthenium (Carrot grass)?

$(a)$ It came into India as a contaminant with imported wheat

$(b)$ It causes allergy

$(c)$ Asexual reproduction occurs in its flower

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Pollen grains are released from

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First three layers of microsporangium which does the function of protection are

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Which of the following statement is correct for the pollen tube

Solution

Similar Questions

Tectum, baculum, foot layer are the different parts of

In some members of which of the following pairs of families, pollen grains retain their viability for months after release ?

What is correct for parthenium (Carrot grass)? $(a)$ It came into India as a contaminant with imported wheat $(b)$ It causes allergy $(c)$ Asexual reproduction occurs in its flower

Pollen grains are released from

First three layers of microsporangium which does the function of protection are

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What is correct for parthenium (Carrot grass)?

$(a)$ It came into India as a contaminant with imported wheat

$(b)$ It causes allergy

$(c)$ Asexual reproduction occurs in its flower