Cell theory, Biology

Assignment Help:

CELL THEORY

Proposed by Mathias Jacob Schleiden, 1838 (Jerman Botanist), Theodore Schwann, 1839 (Jerman Zoologist)

It consists of 5 fundamental facts -

(i) Body of living organisms consists of different types of cells and their products i.e. Cell is the structural unit of life.

(ii) Single cell perform all the vital activities i.e. cells is the functional unit of life. All the activities of living organisms occur due to the metabolic activities of the cell.

(iii) Cell is the hereditary unit of life.

(iv) Cells are living or cell has life.

(Each cell is made of a small mass of protoplasm containing a nucleus in its inside and a plasma membrane with or without a cell wall on its outside)

(v) New cells arise from pre-existing cell. This statement was supported by "Cell Lineage Theory of Rudolf Virchow" which stated "Omnis cellula e cellula" i.e. new cells are formed inside the preexisting cells.


Related Discussions:- Cell theory

Types of blood vessel, Types of Blood Vessel Arteries Arteries ca...

Types of Blood Vessel Arteries Arteries carry blood away form the heart via the pulmonary artery and aorta. Arterioles As major arteries begin to branch , th

Deficiency diseases-copper deficiency, Copper deficiency Copper deficie...

Copper deficiency Copper deficiency may be primary or secondary (conditional). Primary copper deficiency occurs due to its inadequate dietary intake; whereas secondary copper d

Work injuries based on type of accidents, Work Injuries Based On Type of Ac...

Work Injuries Based On Type of Accidents Earlier we identified four kinds of injuries mainly based upon type of disability. This classification is needed for the purposes of c

Hypothetical age pyramids, Hypothetical Age Pyramids The three types o...

Hypothetical Age Pyramids The three types of hypothetical age pyramids which are as follows: 1) A pyramid with a broad base, indicating a high percentage of young individua

Illustrate pathology, Q. Illustrate Pathology? Following rheumatic feve...

Q. Illustrate Pathology? Following rheumatic fever, over next few years to decades, the typical funnel shaped mitral valve assumes a fish mouth appearance. During rheumatic fev

Describe the roles and mechanisms of these rna molecules, 1 ." Most of the ...

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

Explain the function of the right ventricle, Q. What is the function of the...

Q. What is the function of the right ventricle? To where does the right ventricle pump the venous blood? The venous blood is carried as of the right ventricle to the lungs by t

Equipment and supplies -pre-requisite of nursing unit, Equipment and Suppli...

Equipment and Supplies: Nurses who are aware of location of equipment and supplies do give accurate delivery of patient care without delay and wastage of  time and energy for

Explain structural and functional relationship, Describe the location and s...

Describe the location and structure of the pituitary gland and explain its structural and functional relationships with the hypothalamus.

Heterotrophic nutrition, heterotrophic nutrition in any 5 type...

heterotrophic nutrition in any 5 types of organism

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd