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Questions and Answers
What is the role of the hydrophilic ('water loving') polar 'heads' in the plasma membrane?
What is the role of the hydrophilic ('water loving') polar 'heads' in the plasma membrane?
- Act as enzymes for cellular processes
- Responsible for specialized membrane functions
- Form the impermeable interior of the membrane
- Oriented on the inner and outer surfaces of the membrane (correct)
What makes the plasma membrane relatively impermeable to most water-soluble molecules?
What makes the plasma membrane relatively impermeable to most water-soluble molecules?
- Specialized membrane functions
- Receptors for hormones
- Enzymes
- Hydrophobic nonpolar 'tails' (correct)
Which specialized membrane function is responsible for cell-to-cell interaction?
Which specialized membrane function is responsible for cell-to-cell interaction?
- Enzymes
- Cell-to-cell interaction (joining or recognition) (correct)
- Transport as channels or carriers
- Receptors for hormones
Which type of proteins are responsible for transporting molecules across the plasma membrane?
Which type of proteins are responsible for transporting molecules across the plasma membrane?
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What is the primary role of the hydrophobic ('water fearing') nonpolar 'tails' in the plasma membrane?
What is the primary role of the hydrophobic ('water fearing') nonpolar 'tails' in the plasma membrane?
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