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!
OBJECTION OF CELL THEORY (REASONS OF DISCARTION)
(i) Living organism are composed of various types of cells and their product but members of monera & protista don't have a cellular organisation, they have protoplasmic grade & organization.
Cell theory is not applicable on viroids, Viruses, Prions.
(ii) In multicellular organism one type of cell perform one type of function. It doesn't perform all vital activities.
(iii) Gene is the hereditary unit of life according to modern view - Physical unit of life = Gene
Chemical unit of life = DNA
(iv) In plants many dead cells are present, which also have specific function. Vessels and Tracheids of Xylem are dead cells but helps in conduction of water & minerals. In human beings, cells of stratum corneum (outermost layer of skin) are dead & helps in protection.
(v) It was not discarded but modified by Nageli, he just added "through cell division" while omnis cellula e cellula means that cells arise inside the cell. According to Karl nageli "new syncytes arise from division of pre-existing cells".
Q. What is the essential morphology of a protozoan cell? Protozoans are eukaryotic cells so they have structures and organelles common to this kind of cell endoplasmic reticula
Explain Indications for Surgery of Total Anomalous pulmonary Venous Connection ? Once TAPVC is diagnosed in a neonate with symptoms, operation should be undertaken immediately.
What are the warning signs of implant failure The warning signs of implant failure are: i). Connecting screw loosening. ii). Connecting screw failure. iii). Gingival b
Select all that are true/correct: Stable atoms have no vacancies in their outer shell. Hydrogen is more stable than carbon Helium is more stable than carbon Helium is more stable t
List the four phases of meiosis I, and briefly explain what occurs during each phase Prophase I: DNA coils into chromosomes, the nucleolus and nuclear envelope disappear, the m
Express the term - Amnion One of the extraembryonic membranes found in terrestrial vertebrate. The amnion is filled with fluid and the developing embryo of reptiles, birds, and
Role of Government in Health Care Provision The government intervenes in the health sector with a general view of improving the health status of the people. In general governm
Define the term - innor mitochondrial membrane The innor mitochondrial membrane has about 60 different proteins associated with it. The outer membrane is associated with some
T r ad i tional Uses of dung Dung has an astonishing and myriad variety of uses which have been developed over a period of time. Dung patties ( gootee ) are mainly used by
What are the similarities between chlorplasts and prokaryotic cells?
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