BIOD 331 Module 2 Pathophysiology|Quetions & Answers|Latest Updated A+ Score

Define neoplasia and neoplasm: Your Answer: Neoplasia: the process of new growth neoplasm: the growth itself Neoplasia is a disorder of altered cell differentiation and growth. Neoplasm is the "new growth." Question 2 0 / 0 pts Define proliferation and differentiation: Your Answer: Proliferation: process of cell division where new cells are formed to replace old cells or during growth and development when new cells are needed Differentiation: process of cell division where cells become more specialized to perform different functions from each other Proliferation, a process of cell division, is an adaptive process for new cell growth to replace old cells or when additional cells are needed. Differentiation is the process in which cells become more specialized with each mitotic division.1/30/25, 11:41 PM 2/12 Be familiar with the cell cycle (figure 2.1). Question 3 0 / 0 pts What are the 3 main groups of cells that proliferate? Your Answer: 1) stem cells that are undifferentiated and can enter the cell cycle to produce many more cells 2) parent cells that can still divide even though they're differentiated, this usually happens in the skin, blood, and liver 3) neurons, skeletal muscle cells, and cardiac cells that are well differentiated may sometimes divide (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, like blood, skin, and liver cells; (3) undifferentiated stem cells that can enter the cell cycle and produce large number of progenitor cells if needed. Question 4 0 / O pts What are progenitor cells? Your Answer: Progenitor cells are cells that can differentiate further but are not stem cells, it's called differentiating to their target cell The more specialized cells are unable to divide, so these cell populations rely on progenitor or parent cells of the same lineage that have not yet differentiated to the extent that they have lost their ability to divide. They have enough differentiation so the daughter cells are limited to the same cell line, but not quite differentiated enough to prohibit active proliferation. Question 5 0 / O pts What are the benefits of the stem cell? Your Answer: Stem cell can become any kind of cell which means it can be any kind of cell the body needs. Stem cells can also continue to differentiate while remaining a stem cell itself. Stem cells remain dormant until they are needed. When needed, they can divide, produce other stem cells, and carry out the functions of the differentiated cell. Two important properties that3/12 stem cells possess are self-renewal and potency. Self-renewal means the stem cell can undergo numerous mitotic divisions while maintaining an undifferentiated state. Potency describes the differentiation potential of stem cells. Know the difference in terminology of benign and malignant tumors according to tissue types. Refer to table 2.2. Question 6 O / 0 pts What is a polyp? Your Answer: A growth that forms in the intestines or other mucosal surface. A polyp is a growth that projects from a mucosal surface, such as the intestine. A polyp can be benign or malignant.