Lesson 1: Foundations to Set the Stage - Correct answerFocusing on Cellular Structure and Function - Correct answerThe Normal Cell Cycle - Correct answer--The cell cycle refers to the ordered seres of
processes of DNA replication and mitosis, or cell division
-Cell nucleus regulates these process...
Thank you for the review , success in your exams and in need of any study material kindly feel free to reach out i will gladly assist.
Verkoper
Volgen
professoraxel
Ontvangen beoordelingen
Voorbeeld van de inhoud
ONS/ONCC Chemotherapy Immunotherapy Certificate Exam With 100% Correct Answers 2023 Lesson 1: Foundations to Set the Stage - Correct answer - Focusing on Cellular Structure and Function - Correct answer - The Normal Cell Cycle - Correct 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 Interphas e and Mitotic Phase - Correct answer -Cell division produces two identical cells through these two major phases During interphase: - Correct 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) - Correct answer --cells increase in size -reproduce RNA -"quality assurance" test that the cell will be ready to synthesis DNA -Length of time is variable, ca n be from hours to days Synthesis Phase (S phase) - Correct 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) - Correct 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 - Correct answer --G1 checkpoint -S Phase -G2 checkpoint -M phase Restriction Point - Correct 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) - Correct answer --After mitosis, cells may enter bac k 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) - Correct answer --
Exceptions to this are those that are metabollically active, such as -granulocytes -and the epithelium of the GI tract Cell Cycling Time - Correct answer -Amount of time from mitosis to mitosis Cell cycle video and image - Correct answer -
http://highered.mheducation.com/sites/0072495855/student_view0/chapter2/animation_
_how_the_cell_cycle_works.html Check points in the Cell Cycle: Keeping it All Under Control - Correct answer --The cell cycle is carefully controlled through a series of checkpoints -Variation in duplication or distribution of chromosomes during cell divisi on 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 Progression through the cell cycle is contr olled through two proteins: - Correct answer -
1. cyclines (D, E, A, B) 2. Cyclin -dependent kinases (CDKs) -Cyclin -CDK complex allows the cell to progress through each phase of the cell cycle Locations of proteins Cyclins (D, E, A, B) and CDKs - Correct a nswer --(G0-G1) : Cyclin D and CDK 4/6 -Early S: Cyclin E and CDK 1/2 -Late S: Cyclin A and CDK 1/2 -G2: CDK 1/2 and cyclin A -Before M: CDK 1 and Cyclin B Inhibitory proteins - Correct answer --prevent progression of the cycle when DNA damage is detected -An example of an inhibitory protein is p53 (AKA TP53) DNA Damage Checkpoints - Correct answer --If DNA damage is present, cells are programmed to stop divi ding or undergo apoptosis (programmed cell death) -The retinoblastoma protein (Rb), p53, and p21 are some of the most well -understood inhibitory proteins (IP) Inhibitory proteins p53 - Correct answer --Levels of this IP regulate several important target g enes -Will increase when DNA damage is present -Protects against inappropriate signal proliferation -sometimes called the "suicide gene" M Phase Checkpoints - Correct answer -When the cells prepare to divide, the chromosomes line up in the mitotic spind le. If the chromosomes are not properly aligned, division is not allowed to continue Immunity - Correct answer -
Voordelen van het kopen van samenvattingen bij Stuvia op een rij:
Verzekerd van kwaliteit door reviews
Stuvia-klanten hebben meer dan 700.000 samenvattingen beoordeeld. Zo weet je zeker dat je de beste documenten koopt!
Snel en makkelijk kopen
Je betaalt supersnel en eenmalig met iDeal, creditcard of Stuvia-tegoed voor de samenvatting. Zonder lidmaatschap.
Focus op de essentie
Samenvattingen worden geschreven voor en door anderen. Daarom zijn de samenvattingen altijd betrouwbaar en actueel. Zo kom je snel tot de kern!
Veelgestelde vragen
Wat krijg ik als ik dit document koop?
Je krijgt een PDF, die direct beschikbaar is na je aankoop. Het gekochte document is altijd, overal en oneindig toegankelijk via je profiel.
Tevredenheidsgarantie: hoe werkt dat?
Onze tevredenheidsgarantie zorgt ervoor dat je altijd een studiedocument vindt dat goed bij je past. Je vult een formulier in en onze klantenservice regelt de rest.
Van wie koop ik deze samenvatting?
Stuvia is een marktplaats, je koop dit document dus niet van ons, maar van verkoper professoraxel. Stuvia faciliteert de betaling aan de verkoper.
Zit ik meteen vast aan een abonnement?
Nee, je koopt alleen deze samenvatting voor €17,70. Je zit daarna nergens aan vast.
