When Thinking About GREs, Applying to Graduate School, and Studying

question 68

Multiple Choice

When thinking about GREs, applying to graduate school, and studying for mid-terms, Nichole starts to have sweaty palms and a racing heart. It is MOST probable that Nichole is responding to

• A) T cells.
• B) the pressure.
• C) stressors.
• D) lymphocytes.
• E) cytokines.

---

Definitions:

Red Blood Cell

Erythrocyte; contains hemoglobin and carries oxygen from the lungs or gills to the tissues in vertebrates.

Fluid-Mosaic

A model describing the structure of cell membranes, where various proteins float in or on the fluid lipid bilayer like boats on a pond.

Plasma Membrane

The lipid bilayer that forms the outer boundary of a cell, controlling the movement of substances in and out of the cell.

Carrier Proteins

Proteins embedded in the cell membrane responsible for the transport of molecules across the membrane via facilitated diffusion or active transport.