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!
HISTORY OF CELL BIOLOGYScientific knowledge grows with the development of new tools and techniques for studying various physical and biological processes. This is true also of the origin of the concept of cell as a basic unit of life. By 1800 A.D., good microscopes were developed and consequently plants and animals were found to be made up of small units, later known as 'cells'. However, it was only in 1838, that the cell theory was proposed. According to this theory, the cell is both the structural and the functional unit of all living organisms. Cell theory gave a great impetus to study of the cell. It was established that the cell is a mass of protoplasm limited by a cell membrane and possessing a nucleus. Another important observation was thatcells come only from pre-existing cells as a result of cell division. Details of cell division were soon worked out. It became apparent that mitosis is the formation of nuclear filaments (chromosomes) and their equal division between the daughter cells..It was also observed that organisms generally develop from the fusion of two sex cells, the spermatozoon (male sex cell) and ovum (female sex cell). In 1892, cytology (cyto = cell, logos = study) was established as a separate branch of biology. Study of cells with, electron microscope gave a new dimension to the study of cell. Detailed morphological studies of the cell helped to relate the structure with furiction of cellular organelles.
Interaction between various branches of scientific enquiry leads to their overall growth. The interaction between cytology and genetics on one hand and between physiology and biochemistry on the other gave rise to a more comprehensive discipline, Cell Biology, which embodies all that should be known about the cell.
Symptomatic patient: Symptomatic patient (class 11, 111 or IV) with severe MR and normal left ventricular function (EF > 0.6) and end systolic dimension of LV
What is Satisfactory health The implants shows history of or potential for problems though they exhibit health. The features or clinical conditions which are representative of
What is Soil Horizons In a profile, different horizons or layers are identified by certain designations assigned after comparison of the properties of the layer with those o
Some people have disbeliefs regarding insulin injection. You have to find out if there are any disbeliefs and try to explain the importance of insulin injection. Do not force the p
What is the epidemiological association between hemophilia and HIV infection? As hemophilic patients need frequent transfusions of clotting factors (VIII or IX) they are more s
Explain the effect of Deficiency of pyridoxine? A deficiency of vitamin B6 alone is uncommon because it usually occurs in association with a deficit in other B-complex vitamin
Given that most AIDS victims die from overwhelming infections or rare types of cancer, what body system do you think HIV (the AIDS virus) impairs?
Define Advantage & disadvantage of using fungi as source of protein? Advantages 1. Easy to harvest from culture medium. 2. Texture of the fungi improves the functional
Explain the term Indirect Calorimetry? This method estimates energy expenditure by determining the oxygen consumption and carbon dioxide production of the body or a cell over a
Q. Explain Femoral Approach? This approach involves the insertion of a catheter over a guidewire i.e. inserted into a sheath in the right femoral artery. Systemic anticoagulati
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