Michelle had a lobotomy (a surgical technique) in which her entire frontal lobe was removed. michelle will likely have difficulties in:
Michelle will likely have problems in planning and judgment. The lobotomy also named prefrontal leukotomy, surgical process in which the nerve passageways in a lobe or lobes of the brain are separated from those in other areas. The process before was used as a radical beneficial measure to help totally troubled patients with schizophrenia, manic depression and mania and other mental diseases.
Passive communicators do all of the following EXCEPT:
Answer:
C.
stand up for themselves when needed
What do the respiratory system and cellular respiration have in common?
The respiratory system and cellular respiration have oxygen in common because: Oxygen plays vital roles in both systems.
Oxygen plays an important role in both systems
Respiratory system comprises of organs such as the lungs, blood vessels, airways which enable you to breathe in oxygen and also give out carbon dioxide.
Oxygen is key to the respiratory system as all organs and vessels associated with is works in getting oxygen to the cells of the body, and also giving off carbon dioxide.
In same vein, cellular respiration makes use of oxygen during the breakdown of glucose to release energy as well as carbon dioxide and water.
See attachment for the diagram showing a a simple equation of cellular respiration involving oxygen.
In conclusion, the respiratory system and cellular respiration have oxygen in common because: Oxygen plays vital roles in both systems.
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Which of these statements are likely to be found in a psa? select the two correct answers?
Answer:
Lung cancer
Explanation:
Whenever possible, the nurse who is treating the pain of older adults should avoid the use of which drug(s)?
Analyze how sustainable use could preserve biodiversity in hot spots
Lincoln is a 27 year-old man who has been experiencing strange medical symptoms over the past year. HMake a list of the glands, target organs and hormones you have investigated in Lincoln’s case. Begin with the pituitary gland. Beneath
Activity 2.3.2: Hormones Gone Wild Teacher Version – Page 1each, describe the function and what hormones it involves (which gland produced if for which organ and why it was needed).
3. Research the connection between the pituitary gland and the hypothalamus, another structure in the brain. The hypothalamus and the pituitary form the chief link between the nervous and the endocrine system. Take notes in your laboratory journal.
4. Use Inspiration to create a feedback loop or diagram that shows how the body regulates the level of thyroid hormones in the body (and thus maintains normal metabolism). This loop or diagram should include the pituitary gland and the hypothalamus as well as the names of important hormones. Make sure to show how hormones exert feedback to maintain proper thyroid function. Draw arrows to and from important glands and hormones. Think about how the levels of one hormone may impact the release (or lack thereof) of another hormone.
5. Refer back to your blood glucose feedback loop from Activity 2.3.1 for ideas on how to organize your thinking and to design your loop. However, as long as you can explain your diagram, you are free to use whatever format you feel displays a clear relationship between the glands and demonstrates the idea of feedback.e knows something is wrong, but doctors are having a hard time piecing together the clues. Previous doctors’ notes report:
Barnacles and mussels are filter feeders that attach themselves to rocks in the intertidal zone. A scientist observed a dense colony of barnacles covering a rock surface. The mussels were limited to the crevices in the same rock. Evaluate the observation given the limiting factors in the zone.
Final answer:
Barnacles cover rock surfaces while mussels are in crevices due to intertidal limiting factors such as competition, predation, and environmental conditions. Nutrient availability, like plankton, is critical for sustaining their populations in the intertidal zone.
Explanation:
The observation of barnacles dominating the rock surfaces and mussels being restricted to crevices can be understood by evaluating the limiting factors present in the intertidal zone. Barnacles secrete a cement-like substance allowing them to firmly attach to open, exposed surfaces, which helps them to filter feed efficiently in this constantly changing environment. In contrast, mussels are often found in the somewhat more protected crevices, possibly due to a combination of biological and environmental factors such as competition for space, predation, and physical conditions (e.g. wave exposure, desiccation). Given that both mussels and barnacles are filter feeders, the availability of nutrients, primarily plankton, plays a critical role in establishing the maximum sustainable population.
Therefore, factors such as the distribution of phytoplankton and the rate of water flow, which influence the delivery of nutrients, are crucial for maintaining dense populations in the intertidal zone.
When living yeast cells were placed in congo red dye and examined under the microscope, the yeast cells remained colorless. However, when placed in methylene blue, they became blue. Later, dead yeast cells were placed in congo red dye. These cells turned red. Explain these three observations.
Living cells remain colorless because of the presence of an enzyme. They cannot reduce the stain. Whereas, dead cells can reduce the stain and appear red while stained with congo red dye.
What is Staining?Staining is a technique used to enhance the contrast in samples to visualize the samples clearly. This makes the identification and observation of samples easy.
Living cells have an active dehydrogenase system which reduces methylene blue stain and dead cells are unable to reduce this stain. Thus living cells are colorless under this stain while the dead cells stain blue.
The Congo red stain is used for staining amyloids in cell wall of plants, fungi, and outer membrane of gram negative bacteria. Congo red is a synthetic dye, used for the differential staining of elastic fibers present in the cells of bacteria and plants.
Yeast are observed to be oval (egg shaped) organism under high resolution microscopes. It is also possible to observe the buds present on some of the yeast cells.
Methylene blue stain is used in determination of cell mortality. If methylene blue stain is applied to a sample, a healthy cell with turn the stain colorless. This is due to the enzymes, which reduce the methylene blue, causing it to lose its color.
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The PMI of a deeply buried body should show evidence of major _____ decomposition.
A.) microbial
B.) insect
C.) scavenger
D.) mite
Answer:
A.) microbial
Explanation:
PMI is an acronym for the term "Post-mortem internal" that determines the time that has passed since an individual died. This term is highly useful in various sciences, such as forensic science, around the world. The PMI is very important to know the degree of decomposition of a body that I am going to bury. The PMI of a deeply buried body is known to show evidence of increased microbial decomposition.
Which of these microorganisms is most likely to be found in the human stomach?
Thick mucous gland secretions, elevated sweat electrolytes, meconium ileus, and difficulty maintaining and gaining weight are associated with which autosomal recessive disorder?
Part b - phases of the cell cycle the cell cycle represents the coordinated sequence of events in the life of a cell from its formation to its division into two daughter cells. most of the key events of the cell cycle are restricted to a specific time within the cycle. in this exercise, you will identify when various events occur during the cell cycle. recall that interphase consists of the g1, s, and g2 subphases, and that the m phase consists of mitosis and cytokinesis. drag each label to the appropriate target. hints at this point, cell commits to go through the cycle. mitotic spindle begins to form. cell divides, forming two daughter cells. dna replicates. non-dividing cells exit cell cycle. centrosome replicates.
The jovian planets have high masses and hence generate powerful gravitational fields, and yet they have low average densities. what does this fact indicate about their interiors?
If the ecosystem is balanced, which populations should be the largest? Which should be the smallest?
Societal regulations and laws may be developed or changed in response to scientific findings. Which type of scientific research has resulted in the passing of many laws?
describe one cellular activity that uses the energy released by ATP
One of the basic examples of cellular activity, which uses energy released by ATP is the movement of muscles.
• The muscle cells utilize both fatty acids and glucose for their aerobic respiration, and these cells are the prime users of ATP generated by aerobic respiration.
• The muscle cells use ATP mainly for two things, that is, for active transport of calcium ions and the movement of motor proteins.
• The muscle cells use ATP for the active transport of calcium ions into the sarcoplasmic reticulum at the time of muscle contractions.
• For the second time, ATP is used by muscle cells to detach the head of the myosin from the actin filaments at the time of the relaxation of muscles.
Thus, muscular movement is one of the cellular activity, which use the energy of ATP.
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A mother of a 4-year-old child asks the nurse how to talk with her daughter about strangers. the little girl is very friendly and her mother is concerned that her child could be abducted. the nurse should tell the mother:
Volume can be measured in:
A.centimeters
B.square centimeters
C.cubic centimeters
Subliminal stimulation occurs below the _____ threshold for conscious awareness.
At which stage of mitosis are chromosomes usually photographed in the preparation of a karyotype?
a.prophase
b.metaphase
c.anaphase
d.telophase
e.interphase
Twelve-year-old sam has begun to develop facial hair and acne. his twin sister stacey is developing underarm hair and acne. what hormone is responsible for these changes?
The sodium-potassium pump plays an important role in the water balance of cells.in terms of osmosis, explain the consequences of the sodium-potassium pumps not working;
Photosynthesis and why it is the most important chemical reaction on earth
The genetic code in dna depends on the order of what
The genetic code in DNA depends on the order of nucleic acid bases, which determines the sequence of amino acids in a protein.
Explanation:The genetic code in DNA depends on the order of nucleic acid bases. The order of these bases determines the sequence of amino acids in a protein. Each amino acid is coded for by a specific sequence of three nucleotide bases called a codon.
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energy derived from burning wood, alcohol, and garbage
Nonrenewable resources
Renewable resources
Turbines
Geothermal
Cells
Biomass
Answer: Biomass
Explanation: The energy derived by burning of the wood, alcohol and garbage can be defined as biomass.
This is the dry form of the substances that is burned to get energy. This energy can be used for many processes in industries.
Biomass acts a fuel and its burning leads to the emission of carbon dioxide, and other gases in the environment.
Indicate which strategy is likely to lead to optimal muscle glycogen replenishment. meal size
Optimal muscle glycogen replenishment is likely to occur through balanced intake of nutrients, particularly carbohydrates. The hormone insulin assists in glucose absorption by cells and promotes the synthesis of glycogen in liver and muscle cells. Excess nutrients can contribute to glycogen storage, which is crucial in the post-absorptive state where the body relies on these stores for energy.
Explanation:For optimal muscle glycogen replenishment, a strategy involving balanced nutrient intake with an emphasis on carbohydrates is most effective. Upon ingestion, carbohydrates, primarily glucose, are used to replenish glycogen stores within muscles and liver. As the body transitions into a post-absorptive state, the body utilizes stored glycogen for energy needs - this state can last up to 4 hours post meal. In this case, meal size can be a factor in glycogen replenishment: balanced meals with adequate carbohydrates can ensure optimal glycogen stores.
Excess nutrients (proteins, fats, glucose) can contribute to glycogen storage that can be used at a later point when food is scarce or energy demands are high. Extra glucose and ATP, for instance, can produce glycogen. When consumption outpaces need, excess glucose can be stored as glycogen in the liver and muscle cells, or as fat in adipose tissue.
In essence, insulin plays a vital role in glycogen storage. Following a meal, insulin facilitates the absorption of glucose by cells and promotes glycogen synthesis in the liver and muscle cells. In ensuring adequate glycogen stores, incorporating balanced meals with an appropriate size and timing is key.
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Which best describes an axon with myelin and an axon without myelin?
Answer:
A
Explanation:
A FOR REAL
The plasma membrane is composed of a _____ and which two layers of molecules arranged tail to tail
Certain poisons are toxic to organisms because they interfere with the function of enzymes in mictochondria. This results directly in the inability of the cell to
Certain poisons are toxic to organisms because they interfere with the function of enzymes in mitochondria. This results directly in the inability of the cell to store information.
What is mitochondria?
Many of the same defense mechanisms found in other parts of the cell, such as proteases, lipases, antioxidant enzymes and compounds, chaperones, and DNA repair enzymes—all of which are currently the subject of research—are also found in mitochondria.
Additionally, mitochondria can be recycled via autophagy, including mitophagy, in which specifically damaged mitochondria are selected for lysosomal breakdown, just like some other organelles.
However, they also have certain weaknesses since they lack specific defense mechanisms, as well as particular qualities that can make them more resilient to stressor challenges.
Therefore, Certain poisons are toxic to organisms because they interfere with the function of enzymes in mitochondria. This results directly in the inability of the cell to store information.
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Final answer:
Certain poisons are toxic because they impair the function of mitochondrial enzymes, which leads to the interruption of ATP synthesis in cells, causing cell death. Poisons like cyanide and carbon monoxide are examples that disrupt the essential functions at a cellular level, affecting health and survival.
Explanation:
Impact of Poisons on Mitochondrial Function
Poisons can be highly toxic to organisms by interfering with enzymes in the mitochondria. This disruption directly results in a cell's inability to synthesize ATP (adenosine triphosphate), which is necessary for its survival. Examples of such poisons include cyanide, hydrogen sulfide, and carbon monoxide, amongst others. These toxicants lead to cell death by inhibiting various essential enzymatic functions, preventing the production of ATP, thus crippling the cell's energy supply and leading to its demise.
Mitochondrial poisons target the critical metabolic processes within a cell. Heavy metals and organophosphates like Sarin are examples of agents that bind to enzymes, rendering them inactive. With ATP production impaired, active transport mechanisms fail, and the cell can no longer maintain its ion balance and other critical processes, resulting in cell death. Hence, such poisons have profound effects on the health and functionality of an organism by directly affecting the cellular level.
An understanding of the mechanisms of cell death due to toxic exposure helps predict the outcomes of such poisoning cases. The severity and reversibility of cellular dysfunction depend on the body's ability to overcome the toxicant's effects through repair or adaptation. However, in cases where mitochondrial enzymes are inhibited, the result is often irreversible cell injury or death, thereby compounding the impact on the organism's overall health.