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.
In what forms are nitrogenous wastes excreted in birds, humans and aquatic turtles respectively ? Why so, describe?
There are 5 distinct yet constantly interacting phases in the care process. Assessment : A broad base of relative information about the patient's nutritional status, food ha
How could knowledge of a pest organism's tolerance limits be used in pest control? Pesticides could be developed that make those limits narrower, environmental conditions could
character and classification of pigeon
How to calculate the magnifying power of a microscope i
On average what is the life duration of the red blood cells? Where are they destroyed? What is the destination of the heme groups after the destruction of hemoglobin molecules?
1 ." Most of the genome does not code for protein, therefore 99% of the human genome is junk that serves no purpose". With specific reference to examples long and short non-coding
HOW ARE THE ORIGIN AND EVOLUTION OF ALGAE..
Q. Show Complications of Mitral Stenosis ? Hemoptysis It is a common complication in patients with mitral stenosis and is related to the severity of mitral stenosis. Pulm
What is the objective of genesis of coronary artery diseases and risk factors ? After reading this unit, you should be able to: Understand the genesis of CAD; 1 learns about th
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