Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Pollenkitt - Pollen Wall
The lipoidal layer found on the outside of the mature pollen grains of many insect pollinated species is known as the pollenkitt. In addition to lipids it is made up of flavonoids, carotenoids and degeneration products of tapetal proteins. The carotenoids are responsible for its characteristic yellow or orange color. The function of pollenkitt is not clear. It is believed to act as an insect attractant, help in pollen dispersal and in protecting against the damaging effects of UV rays. Deposition o flavonoids appear important for the nod functioning of pollen. In maize it has been shown that the pollen grains that lack flavonoids are incapable of developing tubes that are effective in fertilization. Lipids also help in checking water loss after anther dehiscence and discharge of pollen.
#question.unique features of amoeba.
In the human body, the potassium ion can pass easily through cell membranes, yet the potassium ion concentration is higher inside many cells than it is outside these cells. Could t
Contagious bovine pleuropneumonia (CBPP) This is a highly fatal disease of cattle and of major economic importance in certain tropical countries. It also affects buffaloes, bis
Q. Etiologic factor of ulcerative colitis? No single etiologic factor has been identified although genetic auto-immune factors are thought to be involved. Although exacerbation
Pollen Stigma Interaction - Stigma The Stigma After landing on the stigma pollen grain germinates, and produces a pollen tube that carries the male gametes. The stigma has bee
55yrs old woman had burns and has lost 6% body fluid.She weighs 50Kg.How much fluid does she need to replace the lost fluid.
What are analogies for mitochondria? Well, as you know, the mitochondria are the producers of most of a cell's energy and the nucleolus makes ribosomes. The cell wall is only i
Carrageenan Carrageenan is a collective term for polysaccharides prepared by alkaline extraction (and modification) from red seaweed (Rhodophycae). Carrageenan is a sulfated ga
Q. What is Gastritis? Gastritis is an inflammatory lesion of the gastric mucosa, (the inner lining of the stomach). The problem is seen in two forms: a) Acute gastritis
Explain the senses taste and smell ? The pigmented cone cells of the retina transmit information to bipolar nerve cells, then to ganglion cells, and on to the optic nerve and t
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd