Choose the Most Accurate Characteristic of Class II MHC Proteins

question 62

Multiple Choice

Choose the most accurate characteristic of Class II MHC proteins.

• A) They dampen the responses of other T cells and of B cells.
• B) They divide to produce memory cells and more active helper T cells.
• C) They are found in the plasma membranes of all nucleated cells.
• D) They consist of circulating proteins that assist antibodies in the destruction of pathogens.
• E) They are found in the membranes of lymphocytes and antigen-presenting cells.

Distinguish between different types of photosynthesis (C3, C4, and CAM).

Explain the metabolic connections between photosynthesis and cellular respiration.

Describe the experimental evidence supporting key concepts in plant biology.

Identify the conditions under which photosynthesis and cellular respiration occur.

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Definitions:

Reinforcement

The process by which a stimulus or event strengthens or increases the probability of the response that it follows.

Stimulus

Any event or situation that evokes a response.

Higher-Order Conditioning

A process in classical conditioning by which a stimulus that was previously neutral is paired with a conditioned stimulus to produce the same conditioned response as the conditioned stimulus.

Secondary Reinforcer

A stimulus that gains its reinforcing power through its association with a primary reinforcer.