Exam (elaborations) Portage learning pathophysiology NURS 231/BIOD 33

Portage learning pathophysiology
NURS 231/BIOD 331 module 5 exam all

, neoplasia - CORRECT ANSWERS-disorder of altered cell differentiation and growth

neoplasm - CORRECT ANSWERS-the new growth that occurs as a result of neoplasia

proliferation - CORRECT ANSWERS---process of increasing cell numbers by mitotic
cell division

differentiation - CORRECT ANSWERS-process in which cells become more specialized
with each mitotic division

cell cycle (figure 2.1) - CORRECT ANSWERS-G1 (first growth phase)
S (DNA synthesis phase)
to G2 (second growth phase)
M (mitosis).

G1 - CORRECT ANSWERS-(gap 1)
--DNA synthesis stops
--cell enlarges
--both RNA and protein synthesis begin

S phase - CORRECT ANSWERS---DNA synthesis occurs
--produces two separate sets of chromosomes, one for each daughter cell.

G2 - CORRECT ANSWERS-(gap 2)
--DNA synthesis again stops
--RNA/protein synthesis continues
--first three (G1, S, G2) phases are referred to as interphase

checkpoints - CORRECT ANSWERS---Located at the end of each of these phases (G1,
S-phase, and G2)
--means of molecular surveillance used to ensure the cell is ready to proceed to the
next phase
--if not, the cycle is halted and allowed to complete its replication or even repair any
DNA damage (when detected), thereby ensuring all the genetic information is passed
on correctly.