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Introduction - Fundamental Unit of Life Video Lecture - Class 9
FAQs on Introduction - Fundamental Unit of Life Video Lecture - Class 9
| 1. What is the fundamental unit of life? |  |
Ans. The fundamental unit of life is the cell. It is the smallest structural and functional unit of an organism.
| 2. How are cells classified? | |
Ans. Cells are classified into two types based on the presence or absence of a nucleus. These are prokaryotic cells (without a nucleus) and eukaryotic cells (with a nucleus).
| 3. What are the main components of a cell? | |
Ans. The main components of a cell are the cell membrane, cytoplasm, and nucleus. The cell membrane acts as a protective barrier, the cytoplasm contains various organelles, and the nucleus controls cell activities.
| 4. What is the function of the cell membrane? | |
Ans. The cell membrane controls the entry and exit of substances in and out of the cell. It maintains the integrity of the cell and provides protection.
| 5. What is the role of the nucleus in a cell? | |
Ans. The nucleus contains the genetic material (DNA) of the cell and controls its activities. It is responsible for cell division, growth, and the synthesis of proteins.
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