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BIO 111 EXAM 2 UPDATED ACTUAL Questions and CORRECT Answers

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BIO 111 EXAM 2 UPDATED ACTUAL Questions and CORRECT Answers

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BIO 111 EXAM 2 UPDATED ACTUAL Questions and
CORRECT Answers

, *structural support and protection, selectively
Plasma Membrane permeable
*cell communication, adhesion, and recognition

Components of Plasma phospholipids, cholesterol, proteins, carbohydrates
Membrane

allows some substances to cross but not others,
Selectively Permeability
depending on charge and size

Phospholipid main fabric of plasma membrane, bilayer

having both a hydrophilic region and a hydrophobic
Amphipathic
region

proteins implanted within lipid bilayer of plasma
Integral Proteins
membrane

Peripheral Proteins bound to the surface of the plasma membrane

Glycoproteins attach to proteins

Glycolipids attach to phospholipids

Crabohydrates in Plasma found outside, cell recognition
Membrane

Cholesterol in Plasma only in animal cells, temperature buffer, in between
Membrane phospholipids

plasma membrane, nucleus, rough and smooth ER,
Endomembrane System
vesicles, golgi apparatus, lysosomes

no energy required
Passive Transport
simple diffusion, fascillitated diffusion, osmosis

requires energy
Active Transport Primary Active Transport, Secondary Active Transport,
Bulk Transport

Factors Affecting Plasma temperature, mosaic nature, fatty acid composition
Membrane Fluidity

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