Use the Following Figure to Answer the Questions Below

question 119

Multiple Choice

Use the following figure to answer the questions below.

The citric acid cycle.
-Which of the following is a likely reason that newborn infants have increased amounts of brown fat?

• A)They are unlikely to consume a lot of glucose.
• B)Their nervous system is not fully developed and does not respond quickly to cold temperatures.
• C)They have a higher percentage of fat than children.
• D)There is a significant amount of pyruvate in breast milk.
• E)Newborns are less likely to use ATP as an energy source compared to children.

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Definitions:

Costimulated

Costimulated involves the enhancement of an immune response by simultaneous signaling through two or more receptors on the surface of a lymphocyte.

Interleukins

A group of cytokines (signaling proteins) that are involved in communication between white blood cells; they play a crucial role in the body's immune response.

B Cells

A type of white blood cell that plays a significant role in the immune response by producing antibodies to neutralize pathogens.

IgA Antibodies

Immunoglobulin A antibodies, a type of antibody present in mucous membranes, playing a key role in mucosal immunity by neutralizing pathogens before they enter the body.