Shoaib Q- Differentiate between Plasma membrane and Cell wall: 1. Plasma membrane is present in all cells. 2. Plasma membrane is a thin, living and semi permeable membrane. 3. Plasma membrane is chemically formed of lipid and protein or plasma membrane is chemically lipoprotenious in nature. 4. Plasma membrane helps in exchange of material between cytoplasm … Read more
Q- What was the objectionable postulate of cell theory? In which way it was modified in cell principle? Answer- The objectionable postulate of cell theory is: De Novv formation of new cells similar to crystal formation. In cell principle this was changed or modified in such a way that new cells are formed by growth … Read more
Q- Enlist two similarities between a mitochondria and a bacterium. Answer- The two main similarities between mitochondria and bacterium are as follows: 1. Both mitochondria and bacterium has 70S ribosomes. 2. Both mitochondria and bacterium have circular DNA molecule which is not covered by protein.
Q- Draw a labeled diagram of a chloroplast. Why it is called semiautonomous cell organelle? Answer- Easy way to draw labeled diagram of chloroplast: Chloroplast is called semiautonomous cell organelle because chloroplast has complete machinery (that include DNA, 70S ribosome, RNAs and ATP) for protein synthesis that is why chloroplast is called semiautonomous cell organelle.