Describe the difference between myelinated and unmyelinated nerve fibers (Be Specific). Why is the speed of signal conduction faster in myelinated fibers?
Q: QUESTION 18 What are negative stains used for? OA. To see flagella OB. To see bacterial capsules OC.…
A: Negative staining is a method used in microscopy to create contrast between the specimen and the…
Q: 3. Some basic advice about graphing. a. Always use graph paper and a ruler. b. It is very important…
A: 1. Table 1.4: Average Monthly Temperatures (°F) at Central Park in 1919 and 2019 - Independent…
Q: Following release of acetylcholine (ACh) from a synaptic terminal bouton, the ACh Question 2…
A: Let's break down each option:a) Diffuses across the synaptic cleft and binds to cholinergic…
Q: Contract a dichotomous key of any 10 plants and 10 animals of your choice
A: A dichotomous key is a valuable tool used in biology to identify organisms based on their…
Q: This video explains some of the biology of the inherited disease, cystic fibrosis, caused by…
A: Detailed explanation:The underlying cause of cystic fibrosis, a genetic disease that mainly affects…
Q: Hello, Can you please help me with the next question? How does the rabies virus enter the body and…
A: Rabies is primarily transmitted through the bites of infected animals, including dogs and bats. The…
Q: Can a zygote be more related to one grandparent than another? Why?
A: A zygote is the initial cell formed when two gamete cells (sperm and egg) are joined by means of…
Q: Assuming normal resting membrane potential of a cell, if potassium were to leak down its…
A: 1. Resting Membrane Potential: The resting membrane potential of a typical neuron is around -70 mV.…
Q: Reverse osmosis uses extreme pressure to force water through many layers of selectively permeable…
A: Osmosis is a natural process that occurs when two solutions of different concentrations are…
Q: What are some possible ways that humans could mitigate the effects of cnidarians?
A: Cnidarians, which include species like jellyfish, corals, and sea anemones, can pose various…
Q: Explain what oxidation and reduction reactions are in cells? Give all details posible.
A: Oxidation and Reduction Reactions in Cells: Oxidation and reduction reactions, collectively known as…
Q: (a) A farmer wants to choose an area, A or B, to plant vegetables. He takes a sample of the top soil…
A: Here's the step-by-step breakdown of how I approached parts i and ii as well, along with parts iv…
Q: Draw a spinal section.• Shade in the parts containing grey matter• Leave the parts containing white…
A: A. Dorsal direction (shown by red arrow)B. Ventral direction (shown by red arrow)
Q: Don't use Ai and chatgpt. Answer in step by step with explanation.
A: Bayesian approach is a statistical technique grounded in probability theory with objective of biase…
Q: Do not use Ai
A: Step 1: Calculate the necessary valuesGiven that narrow-sense heritability (h2) is calculated as the…
Q: how toxicology contributes to understanding the potential risks from toxic substances and aids in…
A: Toxicology is the scientific study of adverse effects that occur in living organisms due to…
Q: 5. Consider the decarboxylation of dimethyloxaloacetate 7 to 3-methyl-2-oxobutyrate 8 shown below…
A:
Q: Question 3 (Mandatory) (6 points) You observe a newly-abandoned farm field. Make a prediction of how…
A: A comprehensive response, complete with appropriate explanations and reasoning has been provided in…
Q: 12. The diagram shows a male reproductive system. Name the parts labeled A, B, and C and give one…
A: Question 12:a) Name the parts labeled A, B, and C, and give one function for each.A: Vas deferens -…
Q: Tetrads are aligned at the center of the cell during which of phases?
A: In biology, a tetrad is a group or set of four. During meiosis, a tetrad refers to the four…
Q: Even if our brain had the capacity to interpret all the sensory information accurately and in…
A: In case you need further information, here's a thorough discussion: Even if our brain could…
Q: 4. Nondisjunction occurs during meiosis in a marabara with the following genotype: purply, /pur*. a.…
A: Diagram: Key Labels:Chromosome: A single unit of DNA and protein.Chromatid: One of the two…
Q: If the frequency of allele A (p) is: p = 98 / 134 ≈ 0.731 and the frequency of allele B (q) is: q =…
A: Detailed explanation:This is based on the Hardy-Weinberg equilibrium, where the total frequency of…
Q: A woman, seeking genetic counseling, is found to be heterozygous for a chromosomal rearrangement…
A: Detailed explanation:B. Demonstrating chromosomal pairing during meiosis:In meiosis, homologous…
Q: Provide the following measures: incidence rate, cause-specific rate, age-specific death rate, and…
A: The incidence rate is a measure of the risk of developing some new condition within a specified…
Q: Below is an image of a dividing onion root tip cell undergoing mitosis. In what phase of mitosis is…
A: Telophase in onion root tip cells is a fascinating process that marks the conclusion of mitosis.…
Q: 1. Pick the correct answer and 2. Write a short explanation Out Na+ 120 mM IN K+ 5 mM Na+ K+ 12 mM…
A: When a membrane becomes permeable to chloride ions (Cl⁻), the Cl⁻ ions, which are negatively…
Q: improvement in food resources notes
A: Improvements in Food Resources 1. Agricultural InnovationsGenetic Engineering: Development of…
Q: what is the role of thermodynamics in microbial metabolism in terms of The first and second laws of…
A: The first law of thermodynamics, also known as the law of energy conservation, states that energy…
Q: Draw and asnwer the blank spots
A: Approach to solving the question: Detailed explanation:Examples: Key references:
Q: Describe the wild type phenotype in fruit flies and list the 5 phenotypes that are different from…
A: In genetics, the term wild type refers to the phenotype of the typical form of a species as it…
Q: a)What is the synaptonemal complex? b)Why are the X and Y chromosomes not considered homologous even…
A: The synaptonemal complex is a protein structure that forms between two homologous chromosomes during…
Q: In the following image, A and B are and chromosomes Chromatids Centromere O O O O O A B Replication…
A: Approach to solving the question:To Determine Replication: Look for the presence of sister…
Q: Stream 2 + Taxon # individuals (n) n-1 n(n-1) 1 2 23456700 S 5 4 8 2 3 8 4 9 10 119 11 2 12 3 ΣΝ…
A: Green - Given Yellow - Sum of all n; Just add all n Violet - n-1; Subtract 1 from the 2nd column…
Q: d. Your PI suspects that he gave you M. leprae instead of M. tuberculosis. He asks you to conduct a…
A: To establish whether the sample is **Mycobacterium tuberculosis** or **Mycobacterium leprae**,…
Q: Which of the following is NOT a property of DNA polymerase III? a. It works on both the leading and…
A: DNA polymerase III is a protein complex that plays a crucial role in DNA replication. It is the…
Q: History of biology
A: Detailed explanation:The history of biology is a fascinating journey that traces the evolution of…
Q: FRESHWATER GEORGIA FRESHWATER FISH LARGEMOUTH BASS Upper jaw extends beyond eye Spiny and soft…
A: First, you need to research the taxonomic information for each fish. This includes the scientific…
Q: Which is true? All chordats are vertebrates, non chordates have a vertebral column, all vertebrates…
A: Before we can answer the question, we need to understand the terms involved. Chordates are a broad…
Q: what is happening in METAPHASE I? Include Crossing Over and Independent Assortment when they occur.
A: In Metaphase I, the first phase of the second part of meiosis, homologous chromosomes (pairs of…
Q: What would happen if X and Y engage in genetic recombination that happens in a region of Y that…
A: The SRY gene, also known as the sex-determining region Y gene, is a gene on the Y chromosome in…
Q: So, starting with a culture of 1000 E. coli, how many would I obtain after 16h of ideal growth…
A: To determine how many E. coli bacteria would be present after 16 hours under ideal growth…
Q: What causes the most frequent symptom experienced by someone infected with S.pneumoniae? A)…
A: Why the other options are less likely to be the primary cause of the most frequent symptom in…
Q: Biology B Tutorial Seven- Nervous and Endocrine System Compare this summary to the tables provided…
A: Answer well explained above
Q: Please explain and solve question 3.
A: a. Why does hexane have very poor solubility in water?Hexane is a nonpolar molecule, made up solely…
Q: Worksheet-DNA 2D, synthesis and 3D With this non-graded worksheet, you will put in practice the…
A: Below are the labels and the corresponding information: For the nucleotide structure:Phosphate…
Q: Using the the Figure attached, please answer these questions1.a. define filopodia 1.b. define…
A: 1.c. Indicate Where There Are Induced Filopodia on the Cells in A, B, C, and Dyou can observe…
Q: Which enzyme is the Rnase H, the 5-3 exo DNase, and which one is the Ligase?
A: The question is asking us to identify which of the given enzymes (Enzyme 1, Enzyme 2, Enzyme 3,…
Q: If given this kind of table, how do I calculate the frequency of the A allele and B allele…
A: Detailed explanation:Allele frequency = (Number of alleles of that type) / (Total number of alleles)…
Q: Activity: Factors involved in Natural Selection / Interpreting X-Y graphs The boldness of bass A…
A: Refer to the solution
Describe the difference between myelinated and unmyelinated nerve fibers (Be Specific). Why is the speed of signal conduction faster in myelinated fibers?
Step by step
Solved in 2 steps
- In Neurology, please explain the relationship between suprathreshold depolarization and induced electrical neuro transmission. Is suprathreshold depolarization essential for inducing the electrical transmission?please explain in a few sentences.View an electron micrograph of a cross-section of a myelinated nerve fiber image below. The axon contains microtubules and neurofilaments, bounded by a plasma membrane known as the axolemma. Outside the plasma membrane of the axon is the myelin sheath, which is composed of the tightly wrapped plasma membrane of a Schwann cell. What aspects of the cells in this image react with the stain that makes them the deep, dark, black color, such as the multiple layers that are the myelin sheath?Because the long axons of neurons look like electrical wires, and both neurons and electrical wires conduct electricity, it is tempting to equate the two. Compare and contrast the functioning of axons and electrical wires in terms of their structure and the nature of the electrical signals they conduct. Please include references.
- Assume that two nerves fibers have the same diameter, but one is myelinated and the other is unmyelinated. The conduction of an action potential is most energy-efficient along which type of fiber?Describe how action potentials are conducted by unmyelinated nerve fibers. Why is saltatory conduction in myelinated fibers more rapid?Read the following statements (a) The resting nerve membrane is freely permeable to Na*, K* ions and negatively charged proteins. (b) The activity of Na* - K* pump is responsible for maintaining resting membrane potential. (c) The resting membrane is impermeable to negatively charged proteins present in the axoplasm. Choose the option representing correct statements. b only a and b b and c a, b and c
- View the University of Michigan WebScope (http://openstaxcollege.org/l/nervefiber) to see an electron micrograph of a cross-section of a myelinated nerve fiber. The axon contains microtubules and neurofilaments that are bounded by a plasma membrane known as the axolemma. Outside the plasma membrane of the axon is the myelin sheath, which is composed of the tightly wrapped plasma membrane of a Schwann cell. What aspects of the cells in this image react with the stain to make them a deep, dark, black color, such as the multiple layers that are the myelin sheath?Identify and label the following structures on the neuron model figure below: cell body, dendrites, neuron nucleus, neurolemma, axon hillock, nucleus of Schwann cell, Nissl bodies, myelin sheath, axon, node of Ranvier, axon terminals (of neurons synapsing with model neuron), endoneurium (refer to Figure 10.6). 3) 11Discuss the concept of myelination and the purpose of the myelin sheath
- Describe the resting potential for neurons. How is this potential established? Describe the development of the action potential. How does this come about, and what is the function of this phenomenon? Include a diagram of the various stages of the action potential, showing the changes in voltage that occur throughout this phenomenonDraw a typical action potential (correctly label axis) and explain in words the roles of ion channels in generating the different phases of the action potential. (Extra credit: How would opening voltage gated calcium channels upon depolarization affect the shape of the action potential if they have a relatively slow inactivation rate?)Unmyelinated axons conduct action potentials without decrement, but when myelinated axons lose myelin in demyelinating diseases such as multiple sclerosis, conduction of action potentials is blocked. Why?