Ứng dụng của các chất ức chế và kích thích nhập bào và xuất bào trong y học và nghiên cứu sinh học?
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phân biệt nhập bào và xuất bào
- Ứng dụng của các chất ức chế và kích thích nhập bào và xuất bào trong y học và nghiên cứu sinh học?
- Sự thay đổi của hình dạng tế bào trong quá trình xuất bào
- NhữngConsider the following statements about the factors affecting the elasticity of demand 1. Availability of close substitutes Goods with close substitutes tend to have more elastic demand. 2. Price range of the commodity Commodities with a very high price range tend to have more elastic demand. 3. Share of the commodity in the consumer's budget Goods that constitute a very large share of the consumer's budget tend to have more elastic demand. 4. Number of uses of the commodity Goods with several uses tend to have more elastic demand. Which of the statements given above are correct? (a) 1 and 2 only (b) 1 and 3 only (c) 1, 3 and 4 only (d) 1, 2, 3 and 4 Answer the question based on the concepts of price elasticity of demand. Let's analyze each statement in relation to the price elasticity of demand **Statement 1 Availability of close substitutes Goods with close substitutes tend to have more elastic demand.** * **Explanation ** If there are many close substitutes available for a good, consumers can easily switch to these alternatives if the price of the original good increases, or switch back if its price decreases. This makes the demand for the original good more sensitive to price changes, hence more elastic. * **Conclusion ** This statement is **correct**. **Statement 2 Price range of the commodity Commodities with a very high price range tend to have more elastic demand.** * **Explanation ** This statement is generally **incorrect**. The absolute price level of a commodity does not directly determine the elasticity of demand. What matters more is the *proportion* of the consumer's income spent on the good (as covered in statement 3) and the availability of substitutes. * For example, while a car has a high price, its demand might be relatively inelastic for some individuals who need personal transportation and have limited affordable alternatives in their specific circumstances. * Conversely, a very inexpensive luxury item might have elastic demand if consumers can easily forgo it or switch to slightly different inexpensive luxuries if its price increases. * **Conclusion ** This statement is **incorrect**. **Statement 3 Share of the commodity in the consumer's budget Goods that constitute a very large share of the consumer's budget tend to have more elastic demand.** * **Explanation ** When a good represents a significant portion of a consumer's income, a price change will have a more noticeable impact on their overall spending and purchasing power. Consumers are therefore more likely to be sensitive to price changes for such goods and adjust their consumption significantly. * **Conclusion ** This statement is **correct**. **Statement 4 Number of uses of the commodity Goods with several uses tend to have more elastic demand.** * **Explanation ** If a commodity has multiple uses, a price change can affect the demand for each of its uses. * If the price increases, consumers might decide to forgo some of the less essential uses, leading to a larger decrease in the overall quantity demanded. * Conversely, if the price decreases, the commodity might become affordable for more uses, leading to a larger increase in the overall quantity demanded. * **Conclusion ** This statement is **correct**. Therefore, statements 1, 3, and 4 are correct. Final Answer The final answer is $\boxed{(c)}$
- Sự thay đổi của hình dạng tế bào trong quá trình nhập bào
- Các yếu tố nào quyết định đích đến của các túi vận chuyển sau xuất bào?
- Các loại nhập bào
- Nhập bào ở vi khuẩn
- Vai trò của xuất bào trong quá trình viêm?
- Các nghiên cứu về nhập bào và xuất bào ở các sinh vật mô hình khác nhau (ví dụ nấm men, ruồi giấm, chuột)?
- Sự khác biệt giữa xuất bào có điều hòa và xuất bào cấu trúc
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