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Rhodopsins are light-sensitive molecules composed of a protein (opsin) and retinal (derivative of vitamin A) .Opsin is a membrane protein with several α-helical segments that loop back and forth through the plasma membrane.There are two classes of rhodopsins.According to Oded Beje,one class has relatively slow dynamics (a photocycle of approximately 0.5 second) and is well suited for light detection.The second class has faster dynamics (a photocycle of approximately 0.02 seconds) and is well suited for chemiosmosis pumping of protons or chloride ions across cell membranes.Oded Beje was the first,in September 2000,to report on a rhodopsin (proteorhodopsin) found in the domain Bacteria.[Source: O.Beje et al. ,Science 289 (2000) : 1902.]
-Refer to the paragraph on Rhodopsins.Which of the following best describes this particular protein?
Market Efficiency
A theory stating that all available information is already reflected in asset prices, thus making it impossible to consistently achieve higher returns.
Capital Markets
Markets where individuals and institutions trade financial securities, such as stocks and bonds, facilitating the raising of capital for long-term investments.
Predict Future Price Movements
The process of using analytical or statistical methods to estimate the direction of prices of assets in the future.
Market Efficiency
A concept that describes how well market prices reflect all available information, making it difficult to consistently achieve higher returns.
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