Podcast
Questions and Answers
In which stage of Mitosis does the nucleolus disappear?
In which stage of Mitosis does the nucleolus disappear?
Prophase
What is the structure where the assembly of microtubules of the mitotic spindle begins?
What is the structure where the assembly of microtubules of the mitotic spindle begins?
Centrosome
What is the function of proteins encoded by tumor suppressor genes?
What is the function of proteins encoded by tumor suppressor genes?
To prevent uncontrolled cell growth
What is the mechanism by which the number of animal cells is regulated?
What is the mechanism by which the number of animal cells is regulated?
Signup and view all the answers
What is the mediation process in Apoptosis?
What is the mediation process in Apoptosis?
Signup and view all the answers
In prometaphase, the chromosomal material called chromatin condenses.
In prometaphase, the chromosomal material called chromatin condenses.
Signup and view all the answers
In the G2 phase, the transcription and translation of genes that encode proteins necessary for cell division are observed.
In the G2 phase, the transcription and translation of genes that encode proteins necessary for cell division are observed.
Signup and view all the answers
In animal cells, cytokinesis occurs through segmentation.
In animal cells, cytokinesis occurs through segmentation.
Signup and view all the answers
In telophase, the mitotic spindle breaks down, the nucleolus reappears, and a nuclear membrane forms around the chromosomes.
In telophase, the mitotic spindle breaks down, the nucleolus reappears, and a nuclear membrane forms around the chromosomes.
Signup and view all the answers
At which checkpoint is complete DNA replication verified?
At which checkpoint is complete DNA replication verified?
Signup and view all the answers
What is an internal control signal of the M phase?
What is an internal control signal of the M phase?
Signup and view all the answers
What happens when cells do not respond to control mechanisms?
What happens when cells do not respond to control mechanisms?
Signup and view all the answers
What is the function of the apoptosome?
What is the function of the apoptosome?
Signup and view all the answers
In necrosis, what happens to a cell?
In necrosis, what happens to a cell?
Signup and view all the answers
What is the phase of the cell cycle where cell growth occurs?
What is the phase of the cell cycle where cell growth occurs?
Signup and view all the answers
What is the stage of Mitosis where the nuclear envelope fragments?
What is the stage of Mitosis where the nuclear envelope fragments?
Signup and view all the answers
What event can occur in a cell when a proteolytic cascade is activated?
What event can occur in a cell when a proteolytic cascade is activated?
Signup and view all the answers
What is required to form an active caspase?
What is required to form an active caspase?
Signup and view all the answers
How many procaspases are required to form an active caspase?
How many procaspases are required to form an active caspase?
Signup and view all the answers
What is the phase where an active caspase can activate many other caspases?
What is the phase where an active caspase can activate many other caspases?
Signup and view all the answers
What is considered a tumor suppressor gene?
What is considered a tumor suppressor gene?
Signup and view all the answers
What are the factors that stimulate cell growth?
What are the factors that stimulate cell growth?
Signup and view all the answers
Study Notes
Mitosis
- Nucleolus disappears during Prophase.
- Centrosome is the structure where the assembly of microtubules of the mitotic spindle begins.
- Proteins encoded by tumor suppressor genes prevent uncontrolled cell growth.
- Statement "In prometaphase, the chromosomal material called chromatin condenses" is False.
- In G2 phase, transcription and translation of genes that encode proteins necessary for cell division occur.
- In animal cells, cytokinesis occurs through segmentation.
- In telophase, the mitotic spindle breaks down, the nucleolus reappears, and a nuclear membrane forms around the chromosomes.
- G2 is the checkpoint where complete DNA replication is verified.
- Cyclin levels rise and fall during cell cycle regulation.
- Alignment of chromosomes on the metaphase plate is an internal control signal of the M phase.
Apoptosis
- When cells do not respond to control mechanisms, they produce cancer cells.
- Apoptosis is programmed cell death.
- In necrosis, a cell bursts, spilling its contents.
- The function of the apoptosome is to activate procaspase-9.
- In the proteolytic cascade, the activation of effector caspases is due to cleavage of their prodomains.
- Growth factors stimulate cell growth.
- G1 is the phase of the cell cycle where cell growth occurs.
- During prometaphase, the nuclear envelope fragments.
- Cells that undergo apoptosis die cleanly.
- Apoptosis is mediated by an intracellular proteolytic cascade.
- p53 is considered a tumor suppressor gene.
- Necrosis is characterized by bursting and swelling.
- Two procaspases are required to form an active caspase.
- After cleavage of the prodomains, procaspases must assemble.
- The phase where an active caspase can activate many other caspases is called amplification.
- Nuclear lamina degradation can occur in a cell when a proteolytic cascade is activated.
- Procaspases must undergo cleavage and assembly to form an active caspase.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Test your knowledge of cell division and regulation with this quiz on mitosis and apoptosis. Learn about the stages of mitosis, cell growth regulation, and the mechanisms of apoptosis.
