Caruncle - seed appendages, Biology

Assignment Help:

Caruncle - Seed Appendages

This is a white, collar-like structure borne on the micropylar end of the seed in many members of the Euphorbiaceae, such as castor, Ricinus communis. The soft outgrowth capping the hard seed is formed by proliferation of the cells at the tip of the outer integument. It is rich in starch and sugars. The violent opening of the fruit (this is termed gun-shot mechanism) causes seeds to be thrown away a few feet. It is believed that ants consume the caruncle and in the process carry the seed further away. The caruncle is also considered to be hygroscopic and it may be helpful in absorbing moisture for seed germination.


Related Discussions:- Caruncle - seed appendages

Classification of living organisms – species, Classification of Living Orga...

Classification of Living Organisms – Species You have by now already come across the word 'species'. The word has a definite meaning in biology. Although the living world is v

Colonial , 1. The level of organization intermediate between unicellular an...

1. The level of organization intermediate between unicellular and the multicellular - organisms are composed of multiple cells but these fail to exhibit specialization of those cel

Explain the role of solutions, Explain the role of solutions? Solution...

Explain the role of solutions? Solutions:  A solution consists of a liquid solvent plus substances dissolved in it, called solutes. Solutes may be ions, atoms, or small molec

Define the prevention of iron deficiency anaemia, Define the Prevention of ...

Define the Prevention of iron deficiency anaemia? As in the case of vitamin A deficiency, correction and prevention of dietary inadequacy of iron are important sustainable meth

Falling death rate, State the changes in society which could contribute to ...

State the changes in society which could contribute to a falling death rate. The changes in society which could contribute to a falling death rate are:  (i) improvements in

Name the term concerning with genetic principals of humans, Which of the be...

Which of the below refers to science concerned with the application of genetic principles to improvement of the human species? a) Eugenics b) Assortive mating c) Holandri

Taxonomy, Explain cytological approach in taxonomy.

Explain cytological approach in taxonomy.

Is a viral infection treated with drug, Q. Is a viral infection treated wit...

Q. Is a viral infection treated with the same kind of drug that treats bacterial infections? The Antibacterial drugs, potent against a great variety of bacteria, are not effect

Explain human leucocyte antigen complex, a) Explain the polygonum type of e...

a) Explain the polygonum type of embryo sac. Why is it generally referred to as monosporic ? b) Explain human leucocyte antigen complex? Describe its role in organ transplantati

Define interaction with carbohydrate, Define Interaction with carbohydrate,...

Define Interaction with carbohydrate, fats and proteins? Dietary carbohydrates, fats and proteins require water-soluble vitamins for their metabolism and in turn, influence the

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd