Which of the Following Substances Has the Highest Extracellular Fluid

question 7

Multiple Choice

Which of the following substances has the highest extracellular fluid to intracellular fluid concentration ratio for most mammalian cells?

• A)Sodium ions
• B)Potassium ions
• C)Carbon dioxide
• D)Glucose
• E)Protein

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Definitions:

Neoplasms

Neoplasms are abnormal masses of tissue that result from excessive, uncoordinated growth of cells and can be benign or malignant (cancerous).

Oncogene

An abnormally functioning gene implicated in causing cancer. Compare with proto-oncogene and tumor suppressor gene.

Cell Signaling

Mechanisms of communication between cells. Cells signal one another with secreted signaling molecules, or a signaling molecule on one cell combines with a receptor on another cell. See signal transduction.

Segment Polarity

Genetic and cellular mechanisms that establish anterior-posterior orientation within each segment of a developing embryo, crucial for proper patterning.