Portage Pathophysiology
Module 2 Problem Set
Questions and Complete
Solutions Graded A+
Denning [Date] [Course title]
, Define Neoplasia - Answer: means new growth
Define Neoplasm - Answer: means the new growth itself
Define Proliferation - Answer: process of cell division where new cell growth replaces old cells or when
additional cells are needed
Define Differentiation - Answer: the process by which cells become more specialized with each mitotice
division
Describe the cell cycle - Answer: G1 to S phase to G2 to M phase
What are the 3 main groups of cells that proliferate? - Answer: 1. well differentiated neurons and cells
of skeletal and cardiac muscles that rarely divide and reproduce
2. progenitor or parent cells that continue to divide and reproduce, such as blood, skin, and liver cells
3. undifferentiated stem cells that can enter the cell cycle and produce large numbers of progenitor cells
if needed
What are progenitor cells? - Answer: biological cell that has a tendency to differentiate into a specific
type of cell, but is already more specific than a stem cell and is pushed to differentiate into its "target"
cell
What are the benefits of the stem cell? - Answer: self-renewal and potency meaning they can undergo
numerous mitotic divisions while maintaining an undifferentiated state and they vary in differentiation
potential
What is the difference between malignant and benign tumors? - Answer: Malignant tumors invade and
destory tissue, growing rapidly and spreading to other parts of the body
Benign tumors grow by expansion and remain localized to their site of origin, not capable of metastising
What is polyp? - Answer: growth that projects from a mucosal surface (like the intestine); malignant or
benign
Module 2 Problem Set
Questions and Complete
Solutions Graded A+
Denning [Date] [Course title]
, Define Neoplasia - Answer: means new growth
Define Neoplasm - Answer: means the new growth itself
Define Proliferation - Answer: process of cell division where new cell growth replaces old cells or when
additional cells are needed
Define Differentiation - Answer: the process by which cells become more specialized with each mitotice
division
Describe the cell cycle - Answer: G1 to S phase to G2 to M phase
What are the 3 main groups of cells that proliferate? - Answer: 1. well differentiated neurons and cells
of skeletal and cardiac muscles that rarely divide and reproduce
2. progenitor or parent cells that continue to divide and reproduce, such as blood, skin, and liver cells
3. undifferentiated stem cells that can enter the cell cycle and produce large numbers of progenitor cells
if needed
What are progenitor cells? - Answer: biological cell that has a tendency to differentiate into a specific
type of cell, but is already more specific than a stem cell and is pushed to differentiate into its "target"
cell
What are the benefits of the stem cell? - Answer: self-renewal and potency meaning they can undergo
numerous mitotic divisions while maintaining an undifferentiated state and they vary in differentiation
potential
What is the difference between malignant and benign tumors? - Answer: Malignant tumors invade and
destory tissue, growing rapidly and spreading to other parts of the body
Benign tumors grow by expansion and remain localized to their site of origin, not capable of metastising
What is polyp? - Answer: growth that projects from a mucosal surface (like the intestine); malignant or
benign
