Biology Class 11, Chapter 1 Cell Structure And Functions

By the middle of the___________, biologists clearly recognized that all living things are composed of cells. This is known as________? The cell theory is one of the ______ concepts of biology? A cell is also the functional unit of the________? To homogenize cells the suitable medium must have? Centrifugation is the process to separate substances on the basis of their? It provides the cell wall extra tensile and compressional strength? The secondary cell wall provides mechanical support to the cell and those to the plant as it is present in? Why cell wall is not present in animal cell? Chemically cell membrane consists of__________, _________ and small quantity of carbohydrates.? econdary cell wall is formed between?