Podcast
Questions and Answers
Which of the following is NOT a function of the rough endoplasmic reticulum?
Which of the following is NOT a function of the rough endoplasmic reticulum?
- Increased in pancreatic acinar cells
- Synthesizes proteins for export
- Detoxifies drugs
- Lipid and steroid synthesis (correct)
During which phase of the cell cycle does growth factor affect the cell?
During which phase of the cell cycle does growth factor affect the cell?
- S
- M
- G2
- G1 (correct)
What is the mechanism by which lactic acid and amino acids are converted to glucose?
What is the mechanism by which lactic acid and amino acids are converted to glucose?
- Gluconeogenesis (correct)
- Cori cycle
- Krebs cycle
- Glucagon signaling pathway
Which of the following is NOT a component of the nucleolus?
Which of the following is NOT a component of the nucleolus?
What is the role of transcription factors in gene transcription?
What is the role of transcription factors in gene transcription?
Which hormone binds a receptor in the cytoplasm before entering the nucleus to act as a transcription factor?
Which hormone binds a receptor in the cytoplasm before entering the nucleus to act as a transcription factor?
What is the primary function of lysosomes?
What is the primary function of lysosomes?
In which phase of mitosis do chromosomes align at the center of the cell?
In which phase of mitosis do chromosomes align at the center of the cell?
What is the source of pyruvate molecules for the Krebs cycle?
What is the source of pyruvate molecules for the Krebs cycle?
Which signaling pathway involves cleavage of phosphatidylinositol 4,5-bisphosphate into diacylglycerol and inositol 1,4,5-triphosphate?
Which signaling pathway involves cleavage of phosphatidylinositol 4,5-bisphosphate into diacylglycerol and inositol 1,4,5-triphosphate?
Which enzyme is responsible for unwinding DNA and catalyzing mRNA synthesis during transcription?
Which enzyme is responsible for unwinding DNA and catalyzing mRNA synthesis during transcription?
Which organelle is responsible for modifying proteins with carbohydrates and transporting them to the cellular membrane or lysosomes?
Which organelle is responsible for modifying proteins with carbohydrates and transporting them to the cellular membrane or lysosomes?
What is the function of cholesterol in the cell membrane?
What is the function of cholesterol in the cell membrane?
What is the role of Na/K ATPase in maintaining cell function?
What is the role of Na/K ATPase in maintaining cell function?
Which ion has a higher concentration in the extracellular fluid?
Which ion has a higher concentration in the extracellular fluid?
What is the primary function of desmosomes and hemidesmosomes?
What is the primary function of desmosomes and hemidesmosomes?
What is the general function of gap junctions in cell physiology?
What is the general function of gap junctions in cell physiology?
What is the primary function of G proteins in the cell membrane?
What is the primary function of G proteins in the cell membrane?
Which type of cell surface receptor is activated by binding resulting in a conformational change, opening or activating the channel?
Which type of cell surface receptor is activated by binding resulting in a conformational change, opening or activating the channel?
What is the main purpose of ligand-triggered protein kinase receptors?
What is the main purpose of ligand-triggered protein kinase receptors?
What do tight junctions form in epithelial cells?
What do tight junctions form in epithelial cells?
What is the primary function of ligand-activated protein kinases?
What is the primary function of ligand-activated protein kinases?
Which molecule regulates membrane fluidity by increasing or decreasing cholesterol synthesis?
Which molecule regulates membrane fluidity by increasing or decreasing cholesterol synthesis?
What are organic anions primarily responsible for inside the cell?
What are organic anions primarily responsible for inside the cell?
