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The prokaryotic cells are represented by bacteria, blue-green algae, mycoplasma and PPLO (Pleuro Pneumonia Like Organisms). They are generally smaller and multiply more rapidly than the eukaryotic cells (Figure 8.2). They may vary greatly in shape and size. The four basic shapes of bacteria are bacillus (rod like), coccus (spherical), vibrio (comma
4 lis 2023 · With CBSE Class 9 Science NCERT Book Solutions, students can easily clear their doubts instantly in a more efficient way. So, Download the latest and updated NCERT Solutions for Class 9 Science pdf 2021-22 in English and Hindi medium for free of charge and achieve your academic goals.
Access this chapter’s NCERT Solutions for Class 9 Science in PDF from the link given below. Download PDF. 1. Who discovered cells, and how? Solution: In 1665, Robert Hooke discovered cells while examining a thin slice of cork through a self-designed microscope.
Get NCERT Solutions for Class 9 Science Chapter 5: The Fundamental Unit of Life. Download a FREE PDF for comprehensive study material.
What will happen if we put an animal cell or a plant cell into a solution of sugar or salt in water? One of the following three things could happen: 1. If the medium surrounding the cell has a higher water concentration than the cell, meaning that the outside solution is very dilute, the cell will gain water by osmosis. Such a solution is known as
Get accurate answers of ICSE Class 9 Concise Biology Selina Chapter 9a: Economic Importance of Bacteria. Clear your Biology doubts instantly & get more marks in Biology exam easily. Master the concepts with our detailed explanations & solutions.
Cells come in different shapes and sizes and take on different structures depending on their function. While some organisms like bacteria are single-celled, many organisms are made of multiple cells that group together to form tissues and organs with specialized functions.
