The Cells Involved in Innate Immunity, Whose Absence Increases the Chances

question 48

Multiple Choice

The cells involved in innate immunity, whose absence increases the chances of developing malignant tumours, are

• A)cytotoxic T cells.
• B)natural killer cells.
• C)helper T cells.
• D)macrophages.
• E)B cells.

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Definitions:

pH

A scale used to specify the acidity or basicity of an aqueous solution, ranging from 0 (acidic) to 14 (basic), with 7 being neutral.

K

The chemical symbol for Potassium, an essential dietary mineral and electrolyte involved in nerve function, muscle contraction, and fluid balance.

HA

Depending on context, this can refer to Hyaluronic Acid, a molecule involved in skin hydration and cellular functions, or Hemagglutinin, a protein on the surface of influenza viruses responsible for binding the virus to the host cell.

pH

A measurement system designed to determine the level of acidity or alkalinity in water-based solutions, marked on a continuum from 0 to 14.