Chapter 7

Membrane Structure and Function

Understand how cells control what enters and exits. Master membrane transport - essential for physiology and competitive exams.

6 Hours

Olympiad 5/5

Intermediate

NEETRequired

MCATRequired

AP BiologyRequired

IB BiologyRequired

USABO

5/5

BBO

5/5

INBO

5/5

IBO

5/5

Key Topics Covered

Fluid mosaic model

Membrane proteins and their functions

Passive transport - diffusion, osmosis

Active transport and ATP

Bulk transport - endocytosis, exocytosis

Describe fluid mosaic model of membranes

Compare passive and active transport

Explain osmosis in different solutions

Distinguish endocytosis types

Transport mechanisms appear in questions on nerve impulse, kidney function, digestion, and plant water uptake - all major NEET topics.

NEET tests basic concepts while Olympiad requires understanding water potential, solute potential, and pressure potential calculations.

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