Explain whether any ions can traverse the plasma membrane. If your answer is “yes,” which ions traverse from the extracellular space to the intracellular space and vice versa. Explain your rationale.

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Your research advisor would like you to measure the movement of a protein X using FRAP. The results of your FRAP experiment are shown below. What can you conclude? Fluorescence Intensity (Arbitrary Units) Time (Seconds) Time point of exposure to an intense laser Protein X appears to be completely immobilized in the membrane Protein X appears to be partially immobilized in the membrane You cannot make predictions about the mobility of Protein X with these data Protein X appears to be completely mobile in the membrane

Please answer questions 1a, b, and c please.

True or False? The selective permeability of the plasma membrane allows all substances to pass through the membrane, ensuring that the inside of the cell is in constant interaction with its external environment.

Protein: glucose transporter, Role: Sugar transport across the plasma membrane. Where is this protein synthesized? Be as specific as possible and briefly explain your choice

What's More Since you have already learned the principal components and functions of the cell membrane, the activity below is provided for you. The table below consists of three columns with the pictures found in the first column. Then, on the second column, you have to write the component of the cell membrane which is analogous to the presented pictures/illustrations. You can choose between PHOSPHOLIPID, CARBOHYDRATE, CHOLESTEROL, INTEGRAL PROTEINS, and PERIPHERAL PROTEINS which may be used more than once. Lastly, on the third column, you have to write the SPECIFIC FUNCTION of the component of the cell membrane that is depicted by each picture/illustration. PHOTO - COGNITION Component of the cell membrane being described Function being portrayed Picture Merle

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answer choices for highlighted box in grey

HEL 9. Consider the membrane protems in question 7. What cellular functions must always be performed by an integral membrane protein? Explain. NEL 2.2 Membrane Structure and Functio