Dictionary » P » Petals

Petals

petal

1. (Science: plant biology) A member of the inner whorl of non-fertile parts surrounding the fertile organs of a flower, usually soft and coloured conspicuously.

2. (Science: suffix) Seeking; movement toward the part indicated by the main portion of the word.

Origin: L. Peto, to seek, strive for


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Structure of flower

... sepals, often large and colourful, sometimes scented, sometimes producing nectar. Often serve to attract pollinators to the plant. Corolla All the petals together form the corolla. Stamen Male part of the flower, consisting of the anther and filament, makes pollen grains. Filament The stalk of ...

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by snowfall
Thu May 30, 2013 5:29 pm
 
Forum: Botany Discussion
Topic: Structure of flower
Replies: 3
Views: 3967

Structure of flower

... called polysepalous & when united it is called gamosepalous. 2.corolla:- it is second whorl of flower. individual members of corolla called petals. when petals are free called polypetalous & when united called gamopetalous. 3.androecium:- it is male reproductive whorl. unit of androecium ...

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by zodesujit
Sun May 19, 2013 5:46 am
 
Forum: Botany Discussion
Topic: Structure of flower
Replies: 3
Views: 3967

Help please

... than vegetative reproduction Ans; depend on outside agents. Eg pollination and dispersal Slow growth of the young plants to maturity Wasteful( petals, nectar, pollen, fruit) Explain why seed-grown plants often show more resistance to disease than plants that arise from vegetative propagation. ...

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by Olympic
Wed Aug 01, 2012 7:45 pm
 
Forum: General Discussion
Topic: Help please
Replies: 8
Views: 6560

Re: Gene Technology

You are correct that if no enzyme is present, the petals will remain white. The interesting part of this question is that there are two enzymes, each catalyzing a step in the biosynthetic pathway for the blue pigment, and that the biosynthetic pathway ...

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by jonmoulton
Tue Apr 10, 2012 3:57 pm
 
Forum: Genetics
Topic: Gene Technology
Replies: 1
Views: 1547

Gene Technology

... white I have absolutely no idea why the second and third are correct. I have presumed that with no enzyme there will be no colour change so the petals will remain white (as per the mark scheme)

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by jsmith613
Mon Apr 09, 2012 12:24 pm
 
Forum: Genetics
Topic: Gene Technology
Replies: 1
Views: 1547
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