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

Explain the effect of non nutritional factors pregnancy, Explain the effect...

Explain the effect of Non Nutritional Factors pregnancy? The incidence of LBW is lowest and mean birth weight is highest in the state of Kerala, which is attributed to better

Gastro epiploic artery ge-other arterial conduits, Gastro Epiploic Arte...

Gastro Epiploic Artery (GE) :  Gastro epiploic artery is a less popular arterial conduit now. The midline chest incision is extended to the umbilicus and the right ga

Schizocoelous pattern – coelom, Schizocoelous pattern – Coelom There ...

Schizocoelous pattern – Coelom There are two patterns of coelom formation in animals schizocoelous and enterocoelous. In schizocoelous pattern, two teloblasts cells (primordi

Clinical evaluation in the continuing care cycle, Clinical Evaluation in ma...

Clinical Evaluation in maintenance in the Continuing Care Cycle Examination of gingival contours, along with mechanical evaluation of the prosthesis, implants, and implant comp

Define procedure for testing the presence of sugar in milk, Define Procedur...

Define Procedure for Testing the Presence of Sugar in Milk? 1. Take 0.1 ml of milk sample in a test tube. 2. Add 0.2 ml of resorcinol solution (0.05 gm of resorcinol in 100

How nutritional status affects the bmr, How Nutritional status affects the ...

How Nutritional status affects the BMR? Under nutrition and starvation are the factors which require consideration. Prolonged under nutrition or starvation causes a reduction o

Protoplasm, Protoplasm Also known as bioplast . It is gelly like...

Protoplasm Also known as bioplast . It is gelly like & semi liquid in appearance. It is translucent in nature. It is colourless, oderless, viscous, elastic & granu

Describe aerobic respiration in krebs cycle, Q. Until the Krebs cycle, aero...

Q. Until the Krebs cycle, aerobic respiration can be described without mentioning oxygen, the chemical element after which the reaction gets its name. Where in the process does thi

Describe about results of total anomalous pulmonary venous, Describe about ...

Describe about Results of Total Anomalous pulmonary Venous Connection ? Reported hospital mortality varies from 2 to 20 per cent depending on the experience of cardiac surgery

Factors affects oxygen dissociation curve - Carbon dioxide , Factors affect...

Factors affects oxygen dissociation curve - Carbon dioxide Carbon dioxide lowers the oxygen affinity of haemoglobin even if the pH is kept constant. This effect is due to the

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