EXAM 1 PCB 3702 LATEST 2025 WITH QUESTIONS AND CORRECT VERIFIED CORRECT
ANSWERS GRADED A+ GUARANTEED PASS
What is Physiology? - (ANSWER)-Study of biological function; how the body works
What are the steps of the Scientific Method? - (ANSWER)-make observations
-form testable hypothesis
-design and conduct experiment
-make observations
-analyze data
-replicate results
What determines a good physiological research? - (ANSWER)-Quantifiable measurements
-experimental group and a control group
-Statistical analysis
-Review and publication by a peer-reviewed journal
What are the 4 phases of clinical trails? - (ANSWER)Phase 1: test drug on healthy human volunteers
Phase 2:test drug on people infected with disease
Phase 3: tested on large diverse group of people. FDA approve drug for sale
Phase 4: test other applications of drug
What are the 6 levels of organization? - (ANSWER)-molecule
-cell
-tissue
-organ
-system
-organism
1
, EXAM 1 PCB 3702 LATEST 2025 WITH QUESTIONS AND CORRECT VERIFIED CORRECT
ANSWERS GRADED A+ GUARANTEED PASS
What are the four major categories of tissues? - (ANSWER)-muscle tissue
-nervous tissue
-epithelial tissue
-connective tissue
What are the three types of muscle tissue? - (ANSWER)-skeletal muscle (voluntary)
-cardiac muscle (involuntary)
-smooth muscle
What are the two main categories of mucle tissue? - (ANSWER)-autonomic (involuntary)- smooth and
cardiac
-somatic (voluntary)- skeletal
What is smooth muscle tissue? - (ANSWER)-found in hollow organs
-Found in the walls of digestive, urinary, and reproductive organs, blood vessels, and bronchioles of the
lungs
What is nervous tissue? - (ANSWER)-found in brain, spinal cord, and nerves
-composed of neurons and neuroglia
What is epithelial tissue? Types? - (ANSWER)-Forms the membranes that cover body surfaces, line the
inside of hollow organs, and glands
-has Simple epithelium (one layer) and Stratified epithelium (multiple layers)
What is the difference between simple epithelium and stratified epithelium? - (ANSWER)-Simple
epithelium: has one layer and is specialized for transport of substances.
-Stratified epithelium: has multiple layers and provides protection.
2
, EXAM 1 PCB 3702 LATEST 2025 WITH QUESTIONS AND CORRECT VERIFIED CORRECT
ANSWERS GRADED A+ GUARANTEED PASS
What is connective tissue? Types? - (ANSWER)-a matrix made up of protein fibers, extracellular material,
and specialized cells
-Types: cartilage, bone, and blood
How many organ systems are there? Name them. - (ANSWER)-11
-integumentary, skeletal, muscular, nervous, endocrine, cardiovascular, circulatory, respiratory,
digestive, urinary, and reproductive systems
How is homeostasis maintained? explain it? - (ANSWER)-by negative feedback system which is a reaction
that causes a decrease in function in response to a stimulus
-neg feedback also regulates regulation of glucose
What is homeostasis? - (ANSWER)-Dynamic Constancy in body's internal environment
What is positive feedback system? example? - (ANSWER)-stimulus produces a response that reinforces
or strengthens a stimulus
-example is child birth with oxytocin
What is the structure of the plasma membrane?
Where are the hydrophobic/ hydrophilic centers? - (ANSWER)-hydrophobic tail in center of membrane
-hydrophilic head
-membranes are fluid structures
-negative inside the cell
Describe hydrophilic and hydrophobic substances movements across membrane. - (ANSWER)-Small,
hydrophobic substances pass freely through the phospholipid bilayer
-hydrophilic substances go across membrane with the help of the membrane proteins
3
, EXAM 1 PCB 3702 LATEST 2025 WITH QUESTIONS AND CORRECT VERIFIED CORRECT
ANSWERS GRADED A+ GUARANTEED PASS
What is peripheral membrane proteins? - (ANSWER)-only located in the inner or outer surface of the
phospholipid
What is integral membrane proteins? - (ANSWER)-protein is embedded in whole bilayer
-have hydrophobic and hydrophilic areas
-examples ion channels, carrier, and receptor proteins
What is carbohydrates role in the membrane? - (ANSWER)attached to lipids (glycolipids) and to proteins
(glycoproteins); serve as antigens and interactions with regulatory molecules
What is cholesterol role in the membrane? - (ANSWER)-gives flexibility and reduce permeability of
membrane
-high temps, membrane, less fluid
-low temps, membrane is more fluid
What is phagocytosis? - (ANSWER)-Cell Eating
-Large molecules are taken into a phagocytic vacuole called a phagosome where they are digested.
-furrows outward
What is the job of a pseudopod in phagocytosis? - (ANSWER)-Pseudopods engulf bacteria, dead cells, or
other organic materials and then fuse together to form a food vacuole.
-food vacuole fuses with a lysosome, and the material is digested.
What is endocytosis? - (ANSWER)-brings other large materials into cell as a vesicle.
-furrows inward rather than extending outward
-types: pinocytosis and receptor-mediated
4
ANSWERS GRADED A+ GUARANTEED PASS
What is Physiology? - (ANSWER)-Study of biological function; how the body works
What are the steps of the Scientific Method? - (ANSWER)-make observations
-form testable hypothesis
-design and conduct experiment
-make observations
-analyze data
-replicate results
What determines a good physiological research? - (ANSWER)-Quantifiable measurements
-experimental group and a control group
-Statistical analysis
-Review and publication by a peer-reviewed journal
What are the 4 phases of clinical trails? - (ANSWER)Phase 1: test drug on healthy human volunteers
Phase 2:test drug on people infected with disease
Phase 3: tested on large diverse group of people. FDA approve drug for sale
Phase 4: test other applications of drug
What are the 6 levels of organization? - (ANSWER)-molecule
-cell
-tissue
-organ
-system
-organism
1
, EXAM 1 PCB 3702 LATEST 2025 WITH QUESTIONS AND CORRECT VERIFIED CORRECT
ANSWERS GRADED A+ GUARANTEED PASS
What are the four major categories of tissues? - (ANSWER)-muscle tissue
-nervous tissue
-epithelial tissue
-connective tissue
What are the three types of muscle tissue? - (ANSWER)-skeletal muscle (voluntary)
-cardiac muscle (involuntary)
-smooth muscle
What are the two main categories of mucle tissue? - (ANSWER)-autonomic (involuntary)- smooth and
cardiac
-somatic (voluntary)- skeletal
What is smooth muscle tissue? - (ANSWER)-found in hollow organs
-Found in the walls of digestive, urinary, and reproductive organs, blood vessels, and bronchioles of the
lungs
What is nervous tissue? - (ANSWER)-found in brain, spinal cord, and nerves
-composed of neurons and neuroglia
What is epithelial tissue? Types? - (ANSWER)-Forms the membranes that cover body surfaces, line the
inside of hollow organs, and glands
-has Simple epithelium (one layer) and Stratified epithelium (multiple layers)
What is the difference between simple epithelium and stratified epithelium? - (ANSWER)-Simple
epithelium: has one layer and is specialized for transport of substances.
-Stratified epithelium: has multiple layers and provides protection.
2
, EXAM 1 PCB 3702 LATEST 2025 WITH QUESTIONS AND CORRECT VERIFIED CORRECT
ANSWERS GRADED A+ GUARANTEED PASS
What is connective tissue? Types? - (ANSWER)-a matrix made up of protein fibers, extracellular material,
and specialized cells
-Types: cartilage, bone, and blood
How many organ systems are there? Name them. - (ANSWER)-11
-integumentary, skeletal, muscular, nervous, endocrine, cardiovascular, circulatory, respiratory,
digestive, urinary, and reproductive systems
How is homeostasis maintained? explain it? - (ANSWER)-by negative feedback system which is a reaction
that causes a decrease in function in response to a stimulus
-neg feedback also regulates regulation of glucose
What is homeostasis? - (ANSWER)-Dynamic Constancy in body's internal environment
What is positive feedback system? example? - (ANSWER)-stimulus produces a response that reinforces
or strengthens a stimulus
-example is child birth with oxytocin
What is the structure of the plasma membrane?
Where are the hydrophobic/ hydrophilic centers? - (ANSWER)-hydrophobic tail in center of membrane
-hydrophilic head
-membranes are fluid structures
-negative inside the cell
Describe hydrophilic and hydrophobic substances movements across membrane. - (ANSWER)-Small,
hydrophobic substances pass freely through the phospholipid bilayer
-hydrophilic substances go across membrane with the help of the membrane proteins
3
, EXAM 1 PCB 3702 LATEST 2025 WITH QUESTIONS AND CORRECT VERIFIED CORRECT
ANSWERS GRADED A+ GUARANTEED PASS
What is peripheral membrane proteins? - (ANSWER)-only located in the inner or outer surface of the
phospholipid
What is integral membrane proteins? - (ANSWER)-protein is embedded in whole bilayer
-have hydrophobic and hydrophilic areas
-examples ion channels, carrier, and receptor proteins
What is carbohydrates role in the membrane? - (ANSWER)attached to lipids (glycolipids) and to proteins
(glycoproteins); serve as antigens and interactions with regulatory molecules
What is cholesterol role in the membrane? - (ANSWER)-gives flexibility and reduce permeability of
membrane
-high temps, membrane, less fluid
-low temps, membrane is more fluid
What is phagocytosis? - (ANSWER)-Cell Eating
-Large molecules are taken into a phagocytic vacuole called a phagosome where they are digested.
-furrows outward
What is the job of a pseudopod in phagocytosis? - (ANSWER)-Pseudopods engulf bacteria, dead cells, or
other organic materials and then fuse together to form a food vacuole.
-food vacuole fuses with a lysosome, and the material is digested.
What is endocytosis? - (ANSWER)-brings other large materials into cell as a vesicle.
-furrows inward rather than extending outward
-types: pinocytosis and receptor-mediated
4
