BIOLOGY 168 TEST 1 2026 TEST BANK COMPLETE CELL BIOLOGY REVIEW FRAMEWORK

BIOLOGY 168 TEST 1 2026 TEST BANK
COMPLETE CELL BIOLOGY REVIEW
FRAMEWORK

◉ Homeostasis
Answer: ability to maintain internal stability


◉ Positive feedback
Answer: output enhances the original stimulus


ex. childbirth: oxytocin released w/ contractions. Ends oxytocin and
positive feedback when baby is born.


◉ Negative Feedback
Answer: Output reduces original effect of the stimulus


ex. thermostat set at 70. Heat turning on/off to maintain 70 degrees.


◉ Frontal Plane
Answer:

,◉ Transverse Plane
Answer:


◉ Sagittal Plane
Answer:


◉ Superior Plane
Answer: head is superior to toes (above)


◉ Inferior Plane
Answer: toes are inferior to head (below)


◉ Posterior Plane
Answer: behind/bottom


◉ Anterior Plane
Answer: infront/ontop


◉ Lateral Plane
Answer: further from midline of the body


◉ Medial Plane

, Answer: closer to midline of the body


◉ Proximal Plane
Answer: closest to point of reference


◉ Distal Plane
Answer: furthest from point of reference


◉ Plasma Membrane definition
Answer: selectively permeable to ions and organic molecules.
Controls movement of substances in and out of cells.


◉ Plasma Membrane function
Answer: To protect a cell from the surroundings.


◉ Why is Plasma Membrane Important?
Answer: Without it, bad toxins and other chemicals/viruses could
get into cells easier.


◉ What is the Plasma Membrane made up of?
Answer: 2 layers of phospholipids, cholesterol, glycolipids, and
proteins