A Cell Has Engulfed a Substance from the Extracellular Material

question 173

Multiple Choice

A cell has engulfed a substance from the extracellular material and has migrated to a lymph node to interact with a helper T cell. Which of the following statements best describes this cell?

• A) This is an antigen-presenting cell that interacts with the helper T cell through an MHC class II molecule.
• B) This is an antigen-presenting cell that interacts with the helper T cell through an MHC class I molecule.
• C) This is a cytotoxic T cell that interacts with the helper T cell through an MHC class II molecule.
• D) This is a cytotoxic T cell that interacts with the helper T cell through an MHC class I molecule.

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Definitions:

Set Point

A theory suggesting that the body regulates its own weight around an internally set number, making it difficult to permanently change weight significantly.

Metabolic Rate

The rate at which the body uses energy to maintain basic life functions such as breathing, circulating blood, and cell production.

Social Influence

The effect that the words, actions, or mere presence of other people have on our thoughts, feelings, attitudes, or behaviors.

Body Dissatisfaction

A negative perception of one's own body, often related to appearance, that can significantly impact mental health and well-being.