Microfilaments, Intermediate Filaments, Mitochondria – Biochemistry Homework
The key terms in this Biochemistry course include Microfilaments, Intermediate Filaments, Microtubules, Infection, Peroxisome, Mitochondria, Lysosome, Golgi Apparatus, Rough ER, Smooth ER, Micrograph, Sperm Cells, Flagella, Uric Acid, Spinal Tap, Spinal Fluid, Biopsy, Cigarette.
Which of the following do not play a role in intracellular movement?
microfilaments and intermediate filaments
microfilaments and microtubules
intermediate filaments and microtubules
only intermediate filaments– correct
Which of the following are only in plant cells?
gap junctions
desmosome
Plasmodesmata– correct
tight junctions
Valerie is a studious 15 year old who is also a valuable member of her school’s field hockey team. They are 15-1 this year and have a chance at winning the state championship. However, Valerie recently began feeling ill with noticeable signs of a high fever. After several days, her parents decided to take her to the ER and the attending physician admitted her to the hospital with an ongoing bacterial infection. After several more days, doctors are perplexed that her body is unable to fight off the infection. They decide to take a blood sample and have it sent to the lab for analysis. Lab results indicate that the vacuoles in her white blood cells are successfully trapping the bacteria. However, the bacteria are not being digested by the cell.
Which organelle is likely disrupted?
peroxisome
mitochondria
Lysosome– correct
Rough ER
Smooth ER
Golgi apparatus
Jim and Lisa have lived in the state of New Jersey most of their lives. They are both in their early 30’s and recently married. They have been trying to have their first child for a number of months but Lisa has been unable to get pregnant. Recently, Jim and Lisa decided to go to their family physician to see if there may be something wrong. The physician obtained a sample of Jim’s sperm cells and had it sent to a lab for microscopic analysis. After several days, the physician received a micrograph of the sperm cells and noted a structural defect in the organelle responsible for cell movement. Analyze the micrograph below and determine the organelle responsible for Jim and Lisa’s inability to have a baby. Which organelle is likely defective?
Rough ER
Smooth ER
Golgi apparatus
Flagella- correct
Peroxisome
Mitochondria
Mary is a fifty-five year old female, who arrived in the ER at 4:35 p.m. with complaints of severe fever and pain. The attending physician took blood work and revealed that there was a high concentration of oxidative enzymes in the blood such as catalase, D-amino acid oxidase, and uric acid oxidase. In addition, there were relatively high levels of fatty acids in the blood, which the physician suggested they were not being properly metabolized. A density gradient procedure found that an organelle approximately 0.5 microns in diameter was missing. The physician also diagnosed Mary with having gout in the joints in her hands and feet, a condition which is caused by the accumulation of uric acid.
That same night around 11:00 p.m., Mary began to lose feeling in her lower back. The doctors performed a routine spinal tap (ST) to see if there was an infection in her cerebral spinal fluid. This test turned out to be negative; however, the attending physician did take a biopsy which revealed the nerve cells in Mary’s back were not producing enough myelin, a dielectric material needed for proper nervous system signaling. Which organelle is likely defective?
Rough ER
Mitochondria
lysosome
Smooth ER
Peroxisome– correct
Cytoskeleton
Lauren is a senior at a nearby high school. She is a good student who does her work on weekdays and likes to party on the weekends with her friends. A few months ago, Lauren developed a persistent cough that has worsened over time. She has also had trouble breathing over the past week or so. Her parents decided it was time she see a doctor and made an appointment with the family physician. Lauren arrived at the doctor’s office the following day. The doctor asked her a number of questions about her health history and daily habits, including, whether or not she smoked cigarettes. Lauren responded that she started smoking cigarettes (about 2 per day) her freshman year of high school and does not intend to quit anytime soon.
The doctor decided it was necessary to take a biopsy of the cells that line the bronchus (passageway to the lungs). After several days, the biopsy report has come back along with a micrograph of the bronchial cells. Lauren’s cigarette smoking has badly damaged these organelles which are responsible for mucous and dirt moving up-and-out of her respiratory system. Analyze the micrograph below and determine what cell organelles have been damaged.
Smooth ER
Peroxisome
mitochondria
Cilia– correct
Flagella
lysosome
Which of the following do not play a role in intracellular movement?
microfilaments and intermediate filaments
microfilaments and microtubules
intermediate filaments and microtubules
only intermediate filaments– correct
Which of the following are only in plant cells?
gap junctions
desmosome
Plasmodesmata– correct
tight junctions
Valerie is a studious 15 year old who is also a valuable member of her school’s field hockey team. They are 15-1 this year and have a chance at winning the state championship. However, Valerie recently began feeling ill with noticeable signs of a high fever. After several days, her parents decided to take her to the ER and the attending physician admitted her to the hospital with an ongoing bacterial infection. After several more days, doctors are perplexed that her body is unable to fight off the infection. They decide to take a blood sample and have it sent to the lab for analysis. Lab results indicate that the vacuoles in her white blood cells are successfully trapping the bacteria. However, the bacteria are not being digested by the cell.
Which organelle is likely disrupted?
peroxisome
mitochondria
Lysosome– correct
Rough ER
Smooth ER
Golgi apparatus
Jim and Lisa have lived in the state of New Jersey most of their lives. They are both in their early 30’s and recently married. They have been trying to have their first child for a number of months but Lisa has been unable to get pregnant. Recently, Jim and Lisa decided to go to their family physician to see if there may be something wrong. The physician obtained a sample of Jim’s sperm cells and had it sent to a lab for microscopic analysis. After several days, the physician received a micrograph of the sperm cells and noted a structural defect in the organelle responsible for cell movement. Analyze the micrograph below and determine the organelle responsible for Jim and Lisa’s inability to have a baby. Which organelle is likely defective?
Rough ER
Smooth ER
Golgi apparatus
Flagella- correct
Peroxisome
Mitochondria
Mary is a fifty-five year old female, who arrived in the ER at 4:35 p.m. with complaints of severe fever and pain. The attending physician took blood work and revealed that there was a high concentration of oxidative enzymes in the blood such as catalase, D-amino acid oxidase, and uric acid oxidase. In addition, there were relatively high levels of fatty acids in the blood, which the physician suggested they were not being properly metabolized. A density gradient procedure found that an organelle approximately 0.5 microns in diameter was missing. The physician also diagnosed Mary with having gout in the joints in her hands and feet, a condition which is caused by the accumulation of uric acid.
That same night around 11:00 p.m., Mary began to lose feeling in her lower back. The doctors performed a routine spinal tap (ST) to see if there was an infection in her cerebral spinal fluid. This test turned out to be negative; however, the attending physician did take a biopsy which revealed the nerve cells in Mary’s back were not producing enough myelin, a dielectric material needed for proper nervous system signaling. Which organelle is likely defective?
Rough ER
Mitochondria
lysosome
Smooth ER
Peroxisome– correct
Cytoskeleton
Lauren is a senior at a nearby high school. She is a good student who does her work on weekdays and likes to party on the weekends with her friends. A few months ago, Lauren developed a persistent cough that has worsened over time. She has also had trouble breathing over the past week or so. Her parents decided it was time she see a doctor and made an appointment with the family physician. Lauren arrived at the doctor’s office the following day. The doctor asked her a number of questions about her health history and daily habits, including, whether or not she smoked cigarettes. Lauren responded that she started smoking cigarettes (about 2 per day) her freshman year of high school and does not intend to quit anytime soon.
The doctor decided it was necessary to take a biopsy of the cells that line the bronchus (passageway to the lungs). After several days, the biopsy report has come back along with a micrograph of the bronchial cells. Lauren’s cigarette smoking has badly damaged these organelles which are responsible for mucous and dirt moving up-and-out of her respiratory system. Analyze the micrograph below and determine what cell organelles have been damaged.
Smooth ER
Peroxisome
mitochondria
Cilia– correct
Flagella
lysosome