IGNOU BBCCT 101 2026 - Describe the role of lipids as signaling molecules, cofactors, and pig

Question

Describe the role of lipids as signaling molecules, cofactors, and pigments.

10 Feb 2026

Answer :

Word Count : 262

Lipids perform diverse and essential roles in living systems beyond their function as structural components of membranes and energy reserves. As signaling molecules, certain lipids act as powerful mediators of cellular communication. Steroid hormones such as estrogen, testosterone, and cortisol are derived from cholesterol and can diffuse across cell membranes to bind intracellular receptors, regulating gene expression and influencing growth, metabolism, and reproduction.

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