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Biologia Celular C 2026-2027
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(Q019) In a fluorescence recovery after photobleaching (FRAP) experiment, a fluorescently tagged membrane protein, A, shows very little recovery of fluorescence ten minutes after photobleaching, while membrane protein B shows a rapid increase in fluorescence after bleaching, recovering nearly 80% of its original fluorescent signal by ten minutes. Based on this information, which of the following statements can be made?
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(Q012) Plasma membrane proteins that move ions in and out of cells using active transport are called
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(Q016) Which of the following is a common transmembrane protein structure that can traverse the membrane to form a pore or channel by alternating hydrophobic and hydrophilic amino acids?
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(Q008) Where are new phospholipids made?
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(Q011) ________ are the most abundant molecules in the animal cell membrane, whereas ________ make up 50% of the membrane by mass.
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(Q015) If the backbone of a polypeptide is hydrophilic, how can a transmembrane alpha helix span the hydrophobic portion of the lipid bilayer?
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(Q001) Which of these macromolecules is NOT commonly found in the plasma membrane?
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(Q007) Why do cells regulate their membrane fluidity?
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(Q006) A less permeable membrane is likely to have
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(Q002) Phospholipids assemble into in a membrane using
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