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Fun Video: Cell membrane Video Lecture - Class 9
FAQs on Fun Video: Cell membrane Video Lecture - Class 9
| 1. What is the function of the cell membrane? |  |
Ans. The cell membrane is responsible for controlling the movement of substances in and out of the cell. It acts as a barrier, protecting the cell from its surroundings, and also helps in maintaining the cell's shape and structure.
| 2. How is the cell membrane structured? | |
Ans. The cell membrane is composed of a double layer of phospholipids, with proteins interspersed throughout. The phospholipids have a hydrophilic (water-loving) head and a hydrophobic (water-repelling) tail, which creates a bilayer. This structure provides stability to the cell membrane.
| 3. What are the different types of proteins found in the cell membrane? | |
Ans. The cell membrane contains various types of proteins, including integral proteins, peripheral proteins, and glycoproteins. Integral proteins are embedded within the lipid bilayer, while peripheral proteins are attached to the surface of the membrane. Glycoproteins have carbohydrate chains attached to them.
| 4. How does the cell membrane regulate the movement of substances? | |
Ans. The cell membrane uses various mechanisms to regulate the movement of substances. It has specific channels and transporters that allow selective movement of ions and molecules. Additionally, it uses active transport processes, such as pumps, to move substances against their concentration gradient.
| 5. What happens if the cell membrane is damaged or compromised? | |
Ans. If the cell membrane is damaged or compromised, it can lead to various issues for the cell. It may result in the loss of cellular contents, disruption of cellular processes, and vulnerability to harmful substances. In extreme cases, it can even lead to cell death. Therefore, maintaining the integrity of the cell membrane is crucial for the cell's survival and proper functioning.
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Nov 15, 2024 Last updated |
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