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Cell Death and Disease

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Questions and Answers

What is a characteristic of necrosis?

Maintenance of plasma membrane integrity
Cell phagocytosed by macrophages
Shrinkage of the cell
Swelling of the cell (correct)

What happens in apoptosis?

Shrinkage of cell (correct)
Maintenance of plasma membrane integrity
Organelles are broken down and reused as nutrients
Does not always result in cell death

What can cause cells to die?

High oxygen levels
UV (correct)
Increased ATP production
Low glucose levels

What is a result of ischemia/reperfusion?

Death of surrounding cells (C) Signup and view all the answers

What is a characteristic of autophagy?

Organelles are broken down and reused as nutrients (B) Signup and view all the answers

Which process involves the release of cell contents into surrounding tissue?

Necrosis (A) Signup and view all the answers

What is a characteristic of apoptosis?

Shrinkage of cell (A) Signup and view all the answers

Which process involves the breakdown and reuse of organelles as nutrients?

Autophagy (B) Signup and view all the answers

What is a result of ischemia/reperfusion?

Death of surrounding cells (B) Signup and view all the answers

What signals the cell to die in response to factors like UV and cytotoxic T-cells?

Cell death signals (A) Signup and view all the answers

How are signals transmitted to the nucleus for cell division?

Via signal transduction and mitogenic signalling pathways (B) Signup and view all the answers

What maintains the balance in cell proliferation and inhibition in tissues?

External stimuli and normal tissue restoration (D) Signup and view all the answers

What characterises receptor tyrosine kinases (RTKs) and their activation?

Cytoplasmic tyrosine kinase domain phosphorylates peptides when ligands bind (B) Signup and view all the answers

What happens when a cell receives a mitogenic signal?

Activated protein translation and pathways for energy production, anabolic metabolism, and creation of organelles (A) Signup and view all the answers

How does oncogenic activation of p21 RAS influence cell proliferation?

Stimulates excessive proliferation by amplifying signals (A) Signup and view all the answers

Cell Death and Disease

Choose a study mode

Podcast

Questions and Answers

What is a characteristic of necrosis?

What happens in apoptosis?

What can cause cells to die?

What is a result of ischemia/reperfusion?

What is a characteristic of autophagy?

Which process involves the release of cell contents into surrounding tissue?

What is a characteristic of apoptosis?

Which process involves the breakdown and reuse of organelles as nutrients?

What is a result of ischemia/reperfusion?

What signals the cell to die in response to factors like UV and cytotoxic T-cells?

How are signals transmitted to the nucleus for cell division?

What maintains the balance in cell proliferation and inhibition in tissues?

What characterises receptor tyrosine kinases (RTKs) and their activation?

What happens when a cell receives a mitogenic signal?

How does oncogenic activation of p21 RAS influence cell proliferation?

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