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!
Patterns of Ageing and Death
Plants and their parts develop continuously from germination until death. The latter part of the developmental process, which leads from maturity to the ultimate complete loss of organisation and function, is termed senescence. It is a characteristic of plant behavior that senescence is not simply a running down of the life processes but is a highly ordered and programmed process or series of processes.
According to their habit of growth, plants senesce in many different ways. We will briefly discuss major events of senescence in plants:
1. Whole Plant Senescence: The whole plant may senesce and die at one time after flowering and fruit formation (all annual like wheat, rice, mustard belong to this category). Delay in flowering postpones senescence phase by keeping the plants alive in unfavorable conditions for flowering.
2. Organ Senescence: Parts of the plant like leaves undergo senescence after maturation. Rest of the plant remains alive. New leaves replace senescing leaves.
3. Tissue Senescence: Some tissues like sclerenchyma, tracheids and xylem vessels may senesce and die although the plant as a whole is in a state of good growth.
Each of the following are true of antimicrobial therapeutic drugs except A. Non-toxic to host B. Easily broken down by host C. Easily administered D. Limited capacity to elicit
Q. Indicating the name and respective ploidy of each involved cell how can the formation of sperm cells from germ cells be described? The formation of spermatogenesis or sperm
Evaluation of feedstuff In the feed manufacturing process evaluation of the feed ingredients is very important in achieving consistent quality throughout the year. If one is a
What is cytosolic cyclic AMP Healthy Person P takes a new drug that is a member of a drug family that results in constant levels of cytosolic cyclic AMP (cAMP) in one and only
What is Active Transport--Secretion This method is now a well accepted process of aqueous formation. The rate of aqueous humour formation depends on the rate of active solute
why excretory organ of prawn is called green gland?
A large leaf on a plant in bright sunshine evaporates 5 grams of water per hour. Cooling the leaf through evaporation in this manner enables the plant to eliminate heat energy at t
Osmotic and Ionic Regulation The ammonotelism, ureotelism and uricotelism are the adaptations of the animals for the removal of toxic nitrogenous wastes and thereby maintain
To ensure the building's resistance to potential earthquakes it should be configured, detailed and constructed accordingly. Any weakness in this regard may affect the building's re
Imiquimod (Aldara) This immunomodulator is FDA-approved for topical treatment of external and perianal genital warts, which are caused by papillomavirus. Gradual clearance of w
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