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1.5 Structure and Function of Biological Macromolecules - Review

Explain how lipid-soluble molecules, such as steroid hormones, function in cell signaling.

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AI InstructorJUL 27, 2024, 5:58:51 PM

Lipid-soluble molecules like steroid hormones can easily pass through the phospholipid bilayer of cell membranes due to their hydrophobic nature. Once inside the cell, they bind to specific intracellular receptors, forming a hormone-receptor complex. This complex then enters the nucleus and binds to specific DNA sequences, regulating the transcription of certain genes. This process alters the production of proteins, thereby influencing cell function and activity.

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What allows lipid-soluble molecules to pass through the cell membrane?

Select one of the following options:
  • A.

    Their small size

  • B.

    Their hydrophobic nature

  • C.

    Their interaction with membrane proteins

  • D.

    Their charge

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