Phospholipids Are Large Organic Molecules with a Hydrophilic,polar Phosphate Head

question 83

Multiple Choice

Phospholipids are large organic molecules with a hydrophilic,polar phosphate head connected to hydrophobic,nonpolar fatty acid tails.These molecules arrange themselves to form a mostly impermeable barrier between a liposome and its environment by lining up

• A) hydrophilic head to hydrophilic head with the tails all facing outward from the center line of the membrane.
• B) hydrophobic tails facing each other at the center line of the membrane with the hydrophilic heads facing outward, away from the center line of the membrane.
• C) hydrophobic tails facing hydrophilic heads.
• D) hydrophilic tails facing hydrophobic heads with every other tail facing outward from the center line of the membrane.

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Definitions:

Iconic Memory

A type of visual sensory memory that preserves an image of a visual stimulus for a brief period after the stimulus is removed.

Mental Visualization

The process of creating or re-creating images, scenarios, or elements within the mind without direct input from the external senses.

Working Memory

A cognitive system with a limited capacity that is responsible for temporarily holding information available for processing and manipulation.

Explicit Memory

Retention of facts and experiences that we can consciously know and “declare.” (Also called declarative memory.)