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Cell Video Lecture - Class 9
FAQs on Cell Video Lecture - Class 9
| 1. What is a cell? |  |
Ans. A cell is the basic unit of life that makes up all living organisms. It is the smallest functional and structural unit of an organism capable of performing all the functions of life, such as metabolism, growth, reproduction, and response to stimuli.
| 2. What are the different types of cells? | |
Ans. There are two main types of cells - prokaryotic and eukaryotic cells. Prokaryotic cells are simpler in structure and lack a nucleus, while eukaryotic cells are more complex and have a nucleus and other organelles.
| 3. What is the function of a cell membrane? | |
Ans. A cell membrane is a thin, flexible layer that surrounds and encloses the cell. Its primary function is to control the movement of substances in and out of the cell, and to maintain the cell's shape and integrity.
| 4. How do cells obtain energy? | |
Ans. Cells obtain energy through a process called cellular respiration, which involves breaking down glucose molecules to release energy. This process occurs in the mitochondria of eukaryotic cells and in the cytoplasm of prokaryotic cells.
| 5. What is the role of DNA in a cell? | |
Ans. DNA (deoxyribonucleic acid) is the genetic material that carries the instructions for the development, function, and reproduction of all living organisms. It is located in the nucleus of eukaryotic cells and in the cytoplasm of prokaryotic cells, and is responsible for transmitting genetic information from one generation to the next.
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Nov 15, 2024 Last updated |
Cell for Class 92024 is part of Class 9 preparation. The notes and questions for Cell
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