Which of These Statements Describes the Plasma Membrane

question 296

Multiple Choice

Which of these statements describes the plasma membrane

• A)The hydrophobic interior of its lipid bilayer blocks the passage of water-soluble substances.
• B)The surface carbohydrates within it serve as cell adhesion molecules (CAMs), which cells use to grip one another and surrounding connective tissue fibres.
• C)Its outer layer of carbohydrates is the primary barrier to the passage of water-soluble substances.
• D)Sheets of epithelial cells are joined by gap junctions.

Understand the role of diet and nutrition in early childhood development and how it impacts health outcomes.

Differentiate between various early childhood education programs and their objectives.

Identify how play and social interactions contribute to cognitive and social development.

Understand the concept and implications of myelination in brain development.

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Definitions:

Decreasing-cost Industry

An industry characterized by a reduction in average costs as the scale of production increases, usually due to factors like technological advances.

Long-run Equilibrium

Long-run equilibrium occurs in a market when all producers and consumers have fully adjusted to any changes in the market conditions, with no excess supply or demand.

Economic Profits

The variance between total income and total expenses of a business, factoring in both clear and hidden costs.

Constant-cost Industry

An industry where input costs remain unchanged as industry output changes, leading to a flat supply curve.