Biology teacher

  Cell Theory Explained: Schleiden, Schwann and Virchow Notes for NEET Cell Theory and Overview of Cell showing plant cell, animal cell, nucleus, cytoplasm and membrane-bound organelles. Cell Theory & Overview of Cell (NEET Notes for Beginners) 1. Development of Cell Theory 🧑‍🔬 Matthias Schleiden (1838) German botanist. Studied plant tissues. Concluded that all plants are made up of cells . 🧑‍🔬 Theodor Schwann (1839) German zoologist. Studied animal cells. Observed a thin outer boundary in animal cells, now called the plasma membrane (cell membrane) . Found that cell wall is present only in plant cells . Concluded that animals and plants are composed of cells and cell products . 📖 Cell Theory by Schleiden and Schwann They proposed that: All living organisms are made up of cells. Cells are the basic structural units of life. 🧑‍🔬 Rudolf Virchow (1855) Explained how new cells are formed. Proposed: "Omnis Cellula e Cellula" → All cells arise...

  Cell Theory and Overview of Cell – Easy NEET Notes (Line by Line) Schwann’s Contribution (1839) Theodor Schwann (1839) was a German zoologist . He studied different types of animal cells . He observed that animal cells have a thin outer covering . This outer covering is now called the plasma membrane (cell membrane) . Schwann also studied plant tissues . He found that plant cells possess a cell wall outside the plasma membrane. He concluded that the cell wall is a unique feature of plant cells . Based on his observations, Schwann proposed that: Plants and animals are made up of cells. Cells and their products form the body of organisms. NEET Point ✅ Schwann discovered the importance of the plasma membrane and recognized the cell wall as a characteristic feature of plant cells . Formation of Cell Theory Matthias Schleiden studied plant cells. Theodor Schwann studied animal cells. Together, Schleiden and Schwann formulated the Cell Theory . Main Idea ...

  Cell: The Unit of Life – Easy NEET Notes for Beginners  - Dr.Sanjaykumar pawar Introduction: Living and Non-Living Things Line: When you look around, you see both living and non-living things. Easy Note: Everything around us can be divided into: Living things → humans, plants, animals, bacteria. Non-living things → stone, table, water, air. Line: You must have wondered and asked yourself – what makes an organism living? Easy Note: Scientists wanted to know what special feature is present in living organisms. The answer is cell . NEET Point: ✅ Cell is the basic unit that differentiates living organisms from non-living objects. Line: The answer to this is the presence of the basic unit of life – the cell in all living organisms. Easy Note: Every living organism is made up of one or more cells. Cells perform all life activities. NEET Important: ⭐ Cell = Basic Unit of Life All Organisms are Composed of Cells Line: All organisms are composed o...