BIO 216 Physiology Exam 1 – Greenville Tech Practice Questions, Study
Guide & Exam Review 2026
Physiology - ANS ✔✔Study of normal biological functions: how the body works
-Emphasizes mechanisms
-Derived from scientific experiments
Homeostasis - ANS ✔✔Constancy of the internal environment "the stable state"
-coined by Walter Canon
-main purpose of our physiological mechanisms is to maintain homeostasis
What are the 3 parts of the homeostatic system? - ANS ✔✔Sensors, integrating center, effectors
Sensors - ANS ✔✔Detects change, and sends information about the change to the integrating
center
Integrating Center - ANS ✔✔Assesses change around a set point, sends instructions to the
effectors
Effectors - ANS ✔✔The actual structure making the appropriate adjustments or changes in the
body
What is the normal pH of blood? - ANS ✔✔7.35-7.45
How does positive feedback differ from negative feedback? - ANS ✔✔The end product of a
positive feedback loop stimulates the process to continue
, What are the 4 main types of tissue? - ANS ✔✔Muscle, Epithelial, Nervous, and Connective
Tissue
Muscle Tissue - ANS ✔✔Specialized for contraction; broken down further into
1. Skeletal Muscle- voluntary, striated, multinucleated
2. Cardiac Muscle- striated, Intercalated discs, involuntary,
3. Smooth Muscle- not striated, involuntary,
Nervous tissue - ANS ✔✔Composed of neurons and glial cells
Main purpose is to conduct impulses
Epithelial Tissue - ANS ✔✔Main purpose is protection and secretion ,
Characterized by number of layers and shape
Connective Tissue - ANS ✔✔Characterized by a matrix made up of protein fibers and
extracellular material, further broken down into
1. Connective tissue proper
2. Cartilage
3. Bone
4. Blood
Intracellular VS Extracellular - ANS ✔✔Intracellular: inside the cells
Extracellular: outside the cells
What is an enzyme? - ANS ✔✔A class of protein (EXCEPT RIBOZYMES) that serve as a biological
catalyst
Guide & Exam Review 2026
Physiology - ANS ✔✔Study of normal biological functions: how the body works
-Emphasizes mechanisms
-Derived from scientific experiments
Homeostasis - ANS ✔✔Constancy of the internal environment "the stable state"
-coined by Walter Canon
-main purpose of our physiological mechanisms is to maintain homeostasis
What are the 3 parts of the homeostatic system? - ANS ✔✔Sensors, integrating center, effectors
Sensors - ANS ✔✔Detects change, and sends information about the change to the integrating
center
Integrating Center - ANS ✔✔Assesses change around a set point, sends instructions to the
effectors
Effectors - ANS ✔✔The actual structure making the appropriate adjustments or changes in the
body
What is the normal pH of blood? - ANS ✔✔7.35-7.45
How does positive feedback differ from negative feedback? - ANS ✔✔The end product of a
positive feedback loop stimulates the process to continue
, What are the 4 main types of tissue? - ANS ✔✔Muscle, Epithelial, Nervous, and Connective
Tissue
Muscle Tissue - ANS ✔✔Specialized for contraction; broken down further into
1. Skeletal Muscle- voluntary, striated, multinucleated
2. Cardiac Muscle- striated, Intercalated discs, involuntary,
3. Smooth Muscle- not striated, involuntary,
Nervous tissue - ANS ✔✔Composed of neurons and glial cells
Main purpose is to conduct impulses
Epithelial Tissue - ANS ✔✔Main purpose is protection and secretion ,
Characterized by number of layers and shape
Connective Tissue - ANS ✔✔Characterized by a matrix made up of protein fibers and
extracellular material, further broken down into
1. Connective tissue proper
2. Cartilage
3. Bone
4. Blood
Intracellular VS Extracellular - ANS ✔✔Intracellular: inside the cells
Extracellular: outside the cells
What is an enzyme? - ANS ✔✔A class of protein (EXCEPT RIBOZYMES) that serve as a biological
catalyst
