Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NTA Abhyas NEET2020BotanyCell - The Unit of LifePractice

The theory given by Schleiden and Schwann and modified by Virchow is not applicable to:

Options

  1. ABacteria
  2. BFungus
  3. CAlgae
  4. DViruses

Correct answer

D. Viruses

Step-by-step solution

Schleiden and Schwann proposed a cell theory. He said that cells are the basic unit of life and all plants and animals are composed of the cells. In 1855, Rudolf Virchow added the third principle to cell theory. He states that Omnis e cellula e cellula means that all living cells come from pre-existing cells. Virchow's theory not applied to the virus because viruses are obligate parasites which means they cannot complete its life cycle without a host. They do not have cellular machinery whereas in others it is pres

Practice Cell - The Unit of Life on Quantrex Academy →

More from Cell - The Unit of Life

Choose the correct statements regarding cell organelles and their inclusions. A. The endomembrane system includes Golgi complex, endoplasmic reticulum and mitochondria. B. Rough en 2026The plastid that stores xanthophyll is known as __________. 2026Which of the following are characteristics of prokaryotic cells ? (a) Ribosomes are made of 50S and 30S subunits (b) They can have plasmids (c) They contain mesosome (d) They have 2026Non-membrane bound cell organelles found in both prokaryotic and eukaryotic cells are : 2026Match List-I with List-II . List-I List-II A. Cristae I. Flat membrane sacs in stroma of chloroplast B. Cisternae II. Infoldings in mitochondria C. Thylakoids III. Cell membrane D. 2026Cell theory was formulated by __________. 2026Mitochondrial inner membrane encloses__________. 2026Which one of the following is the site for active ribosomal RNA synthesis ? 2026 Full Cell - The Unit of Life list All NTA Abhyas NEET PYQs