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Mature ovules are classified on the basi...

Mature ovules are classified on the basic of funiculus. If micropyle comes to lie close to the funiculus the ovule is termed as

A

orthotropous

B

anatropous

C

hemitropous

D

campylotropous

Text Solution

Verified by Experts

The correct Answer is:
B
Depending upon the configuration and orientation of the body of ovule in relation to funiculus. There are six types of ovule - orthtropous (atropous, erect), anatropous (inverted) hemitropous (half inverted), campylotropous (body curved), amphitropous (both body and embryo sac curved) and cricinotropous (funiculus is coiled around the ovule). circinotropous (funiculus is coiled around the ovule). Anatropous or inverted ovule is the most common type of ovule found in angiosperms (in `82%` of angiosperm families). Here, body of the ovule gets inverted and micropyle is aon lower side. Further micropyle and funiculus lie side and micropyle is close to helium.
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Knowledge Check

  • The point at which funiculus touches the ovule is

    A
    Chalaza
    B
    Hilum
    C
    Raphe
    D
    Endothelium.

  • When the body of the ovule lies at right angles to the funicle and the micropyle lies close to the later, it is termed as

    A
    anatropous
    B
    hemianatropous
    C
    campylotropous
    D
    amphitropous

  • When ovule is straight so the funiculus, chalaza and micropyle lie in one vertical line, the ovule is said to be ?

    A
    Anatropous ovule
    B
    Amphitropous ovule
    C
    Orthotropous ovule
    D
    Hemitropous ovule

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