Podcast
Questions and Answers
Which component of lipid molecules is usually unbranched and may or may not be saturated?
Which component of lipid molecules is usually unbranched and may or may not be saturated?
- Phosphate head
- Glycerol backbone
- Fatty acid tail (correct)
- Choline
What type of molecule intercalates between phospholipids and impacts membrane fluidity?
What type of molecule intercalates between phospholipids and impacts membrane fluidity?
- Sphingolipids
- Cholesterol (correct)
- Glycerophospholipids
- Glycocalyx
What is the function of the glycocalyx?
What is the function of the glycocalyx?
- To protect the cell (correct)
- To stiffen the membrane
- To form lipid rafts
- To increase membrane fluidity
Which type of membrane lipid has a slightly different shape that can decrease membrane fluidity?
Which type of membrane lipid has a slightly different shape that can decrease membrane fluidity?
Which membrane-bound component is responsible for creating and modifying proteins?
Which membrane-bound component is responsible for creating and modifying proteins?
Which junction helps in regulating movement across membranes and other epithelial structures?
Which junction helps in regulating movement across membranes and other epithelial structures?
What is the extracellular component in a desmosome?
What is the extracellular component in a desmosome?
Which junction commonly binds to the basement membrane and helps in anchoring epithelial cells?
Which junction commonly binds to the basement membrane and helps in anchoring epithelial cells?
What do adherens junctions connect with instead of intermediate filaments?
What do adherens junctions connect with instead of intermediate filaments?
Which component of the cytoskeleton is responsible for cellular movement and organization of cellular components/organelles during mitosis and meiosis?
Which component of the cytoskeleton is responsible for cellular movement and organization of cellular components/organelles during mitosis and meiosis?
Which protein monomer forms microtubules?
Which protein monomer forms microtubules?
What happens to the dimer after GTP is cleaved from tubulin?
What happens to the dimer after GTP is cleaved from tubulin?
What is the function of the microtubule organizing centre (MTOC)?
What is the function of the microtubule organizing centre (MTOC)?
What is the unique structure of centrioles?
What is the unique structure of centrioles?
What are dyneins and kinesins?
What are dyneins and kinesins?
Which of the following is a lipid component of the cell membrane?
Which of the following is a lipid component of the cell membrane?
Which of the following is NOT a function of the plasma membrane?
Which of the following is NOT a function of the plasma membrane?
Which of the following describes the forces at play across the cell membrane?
Which of the following describes the forces at play across the cell membrane?
Which cellular structure helps maintain cellular integrity?
Which cellular structure helps maintain cellular integrity?
Which of the following is a component of the cytoskeleton?
Which of the following is a component of the cytoskeleton?
Which of the following is true about extracellular signals and cell membrane receptors?
Which of the following is true about extracellular signals and cell membrane receptors?
What determines whether a cell responds to a specific extracellular signal?
What determines whether a cell responds to a specific extracellular signal?
Which of the following is NOT a function of membrane proteins?
Which of the following is NOT a function of membrane proteins?
What do membrane proteins do in relation to the overall structure of the cell?
What do membrane proteins do in relation to the overall structure of the cell?
What is the function of tight junctions?
What is the function of tight junctions?
Which of the following best describes osmosis?
Which of the following best describes osmosis?
What happens when a solution with a higher concentration of solutes is separated from a solution with a lower concentration of solutes by a semi-permeable membrane?
What happens when a solution with a higher concentration of solutes is separated from a solution with a lower concentration of solutes by a semi-permeable membrane?
What is the main function of the Na+/K+ ATPase?
What is the main function of the Na+/K+ ATPase?
Why does the Na+/K+ ATPase require energy from ATP?
Why does the Na+/K+ ATPase require energy from ATP?
What is the difference between active transport and passive transport?
What is the difference between active transport and passive transport?
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