Podcast
Questions and Answers
A researcher is studying the effects of a new drug on cell division. They observe that cells treated with the drug have a significantly higher rate of errors during DNA replication. Which cellular component is most likely directly affected by this drug?
A researcher is studying the effects of a new drug on cell division. They observe that cells treated with the drug have a significantly higher rate of errors during DNA replication. Which cellular component is most likely directly affected by this drug?
- Mitochondria
- DNA polymerase (correct)
- Lysosomes
- Ribosomes
A cell is placed in a hypertonic solution. Which of the following describes the most likely initial response of the cell?
A cell is placed in a hypertonic solution. Which of the following describes the most likely initial response of the cell?
- The cell will swell due to water influx.
- The cell will burst due to excessive water influx.
- The cell will shrink due to water efflux. (correct)
- The cell will maintain its size due to equilibrium.
A cell with a mutation in its gene for a receptor protein shows a decreased ability to respond to external growth factors. This mutation most directly affects which process?
A cell with a mutation in its gene for a receptor protein shows a decreased ability to respond to external growth factors. This mutation most directly affects which process?
- DNA replication
- Energy production
- Protein synthesis
- Cell signaling (correct)
During which phase of the cell cycle does DNA replication occur?
During which phase of the cell cycle does DNA replication occur?
Which of the following is the primary function of the Golgi apparatus?
Which of the following is the primary function of the Golgi apparatus?
A scientist discovers a new organelle in a eukaryotic cell. Upon biochemical analysis, it is found to be rich in enzymes that catalyze redox reactions and break down hydrogen peroxide into water and oxygen. This organelle is most likely a:
A scientist discovers a new organelle in a eukaryotic cell. Upon biochemical analysis, it is found to be rich in enzymes that catalyze redox reactions and break down hydrogen peroxide into water and oxygen. This organelle is most likely a:
A researcher observes a cell undergoing programmed cell death. Which of the following processes is most likely occurring?
A researcher observes a cell undergoing programmed cell death. Which of the following processes is most likely occurring?
How does facilitated diffusion differ from simple diffusion?
How does facilitated diffusion differ from simple diffusion?
Which of the following cytoskeletal elements is primarily involved in muscle contraction?
Which of the following cytoskeletal elements is primarily involved in muscle contraction?
What is the role of the rough endoplasmic reticulum (RER) in protein synthesis?
What is the role of the rough endoplasmic reticulum (RER) in protein synthesis?
A cell is unable to produce functional lysosomes. What effect will this have on the cell's ability to function?
A cell is unable to produce functional lysosomes. What effect will this have on the cell's ability to function?
Which type of cell junction prevents the leakage of extracellular fluid across a layer of epithelial cells?
Which type of cell junction prevents the leakage of extracellular fluid across a layer of epithelial cells?
A mutation in a gene leads to the production of a non-functional transport protein in the cell membrane. How might this affect the cell?
A mutation in a gene leads to the production of a non-functional transport protein in the cell membrane. How might this affect the cell?
Which of the following is the main function of mitochondria?
Which of the following is the main function of mitochondria?
What is the role of G proteins in cell signaling pathways?
What is the role of G proteins in cell signaling pathways?
Which of the following is NOT a component of the cell membrane?
Which of the following is NOT a component of the cell membrane?
How does active transport differ from passive transport?
How does active transport differ from passive transport?
What is the function of the nucleolus?
What is the function of the nucleolus?
Which of the following processes is involved in bringing large particles into the cell?
Which of the following processes is involved in bringing large particles into the cell?
During an experiment, a researcher inhibits a cell's ability to perform exocytosis. What is the most likely result?
During an experiment, a researcher inhibits a cell's ability to perform exocytosis. What is the most likely result?
Flashcards
What is a cell?
What is a cell?
The basic structural, functional, and biological unit of all known organisms. It is the smallest unit of life that can replicate independently.
What are organelles?
What are organelles?
A membrane-bound structure within a cell that performs a specific function, such as the nucleus, mitochondria, or endoplasmic reticulum.
What is the mitochondrion?
What is the mitochondrion?
The organelle responsible for generating most of the cell's energy (ATP) through cellular respiration.
What is the nucleus?
What is the nucleus?
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What is the endoplasmic reticulum (ER)?
What is the endoplasmic reticulum (ER)?
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What is the golgi apparatus?
What is the golgi apparatus?
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What are lysosomes?
What are lysosomes?
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What is the cell wall?
What is the cell wall?
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What is the cell membrane?
What is the cell membrane?
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What is a chromosome?
What is a chromosome?
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What is mitosis?
What is mitosis?
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What is meiosis?
What is meiosis?
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What is cytoplasm?
What is cytoplasm?
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