The Cell Wall of Gram-Positive Bacteria

question 61

Multiple Choice

The cell wall of Gram-positive bacteria

• A)contains a thin layer of peptidoglycan.
• B)contains a thick layer of peptidoglycan.
• C)is,due to its thickness,an excellent barrier to most molecules.
• D)contains an outer membrane containing LPS.
• E)contains a thin layer of peptidoglycan AND contains an outer membrane containing LPS.

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Definitions:

Classical Conditioning

Classical conditioning is a learning process in which an innate response to a potent stimulus becomes triggered by a previously neutral stimulus.

Negative Reinforcement

A process in behavioral psychology where the removal of an undesirable stimulus strengthens a behavior.

Partial Reinforcement

A conditioning schedule in which a reward is not given every time the desired response is made, enhancing resistance to extinction of the behavior.

Successive Approximations

A process in behaviorism where behaviors are broken down into small, achievable steps towards a final goal, often used in learning and conditioning.