ONS CHEMOTHERAPY BIOTHERAPY
EXAMINATION PREP STUDY GUIDE LATEST
UPDATED PRACTICE SOLUTION VERIFIED 100
PERCENT
◉ Lesson 1: Foundations to Set the Stage. Answer:
◉ Focusing on Cellular Structure and Function. Answer:
◉ The Normal Cell Cycle. Answer: -The cell cycle refers to the
ordered seres of processes of DNA replication and mitosis, or cell
division
-Cell nucleus regulates these processes by gathering and processing
complexes molecular information
◉ Interphase and Mitotic Phase. Answer: Cell division produces two
identical cells through these two major phases
◉ During interphase:. Answer: Cell grows and DNA is replicated
through the following three steps:
1: First growth phase (G1 or first gap)
,2: Synthesis phase (S phase)
3:Mitotic Phse (M phase)
◉ First Growth Phase (G1 or first gap). Answer: -cells increase in size
-reproduce RNA
-"quality assurance" test that the cell will be ready to synthesis DNA
-Length of time is variable, can be from hours to days
◉ Synthesis Phase (S phase). Answer: -DNA replicates
-Results in the formation of identical pairs of DNA (chromatids)
-which are attached a t the centromere
-lasts 2-10 hours
◉ Mitotic Phase (M phase). Answer: -Replicated chromosomes are
aligned, separated, and move into 2 new, identical daughter cells
,-takes about 30-60 minutes
◉ Major points of cell regulation are entry and exit from. Answer: -
G1 checkpoint
-S Phase
-G2 checkpoint
-M phase
◉ Restriction Point. Answer: -The transition from the resting phase
into an actively dividing phase (G0-G1) is a point where cellular
transformation can occur
-During this time, cells pass through a transition phase known as a
restriction point
-Extracellular growth factors trigger reentry into G1, and GF are
required to send the cells past the restriction point, or the point of no
return
◉ G0 Phase (resting phase). Answer: -After mitosis, cells may enter
back into the G1 phase or go into a resting phase, known as G0
-Most cells in the human body reside in G0
, ◉ -Exceptions to this are those that are (Resting in G0 phase).
Answer: -Exceptions to this are those that are metabollically active,
such as
-granulocytes
-and the epithelium of the GI tract
◉ Cell Cycling Time. Answer: Amount of time from mitosis to
mitosis
◉ Cell cycle video and image. Answer:
http://highered.mheducation.com/sites/0072495855/student_view0/ch
apter2/animation__how_the_cell_cycle_works.html
◉ Check points in the Cell Cycle: Keeping it All Under Control.
Answer: -The cell cycle is carefully controlled through a series of
checkpoints
-Variation in duplication or distribution of chromosomes during cell
division can alter the genetic information passed on to daughter cells,
leading to cellular dysfunction and disease, such as cancer
-These checkpoints monitor for DNA integrity and control
progression through mitosis
EXAMINATION PREP STUDY GUIDE LATEST
UPDATED PRACTICE SOLUTION VERIFIED 100
PERCENT
◉ Lesson 1: Foundations to Set the Stage. Answer:
◉ Focusing on Cellular Structure and Function. Answer:
◉ The Normal Cell Cycle. Answer: -The cell cycle refers to the
ordered seres of processes of DNA replication and mitosis, or cell
division
-Cell nucleus regulates these processes by gathering and processing
complexes molecular information
◉ Interphase and Mitotic Phase. Answer: Cell division produces two
identical cells through these two major phases
◉ During interphase:. Answer: Cell grows and DNA is replicated
through the following three steps:
1: First growth phase (G1 or first gap)
,2: Synthesis phase (S phase)
3:Mitotic Phse (M phase)
◉ First Growth Phase (G1 or first gap). Answer: -cells increase in size
-reproduce RNA
-"quality assurance" test that the cell will be ready to synthesis DNA
-Length of time is variable, can be from hours to days
◉ Synthesis Phase (S phase). Answer: -DNA replicates
-Results in the formation of identical pairs of DNA (chromatids)
-which are attached a t the centromere
-lasts 2-10 hours
◉ Mitotic Phase (M phase). Answer: -Replicated chromosomes are
aligned, separated, and move into 2 new, identical daughter cells
,-takes about 30-60 minutes
◉ Major points of cell regulation are entry and exit from. Answer: -
G1 checkpoint
-S Phase
-G2 checkpoint
-M phase
◉ Restriction Point. Answer: -The transition from the resting phase
into an actively dividing phase (G0-G1) is a point where cellular
transformation can occur
-During this time, cells pass through a transition phase known as a
restriction point
-Extracellular growth factors trigger reentry into G1, and GF are
required to send the cells past the restriction point, or the point of no
return
◉ G0 Phase (resting phase). Answer: -After mitosis, cells may enter
back into the G1 phase or go into a resting phase, known as G0
-Most cells in the human body reside in G0
, ◉ -Exceptions to this are those that are (Resting in G0 phase).
Answer: -Exceptions to this are those that are metabollically active,
such as
-granulocytes
-and the epithelium of the GI tract
◉ Cell Cycling Time. Answer: Amount of time from mitosis to
mitosis
◉ Cell cycle video and image. Answer:
http://highered.mheducation.com/sites/0072495855/student_view0/ch
apter2/animation__how_the_cell_cycle_works.html
◉ Check points in the Cell Cycle: Keeping it All Under Control.
Answer: -The cell cycle is carefully controlled through a series of
checkpoints
-Variation in duplication or distribution of chromosomes during cell
division can alter the genetic information passed on to daughter cells,
leading to cellular dysfunction and disease, such as cancer
-These checkpoints monitor for DNA integrity and control
progression through mitosis
