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mary

Questions (1,043)

Chose the right answer. During muscle contraction...a. the M-line slides toward Z-disks b. actin pulls on myosin c. troponin
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During muscle contractionthe M-line slides toward Z-disks actin pulls on myosin troponin forms a cross-bridge with actin Z-disks
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During muscle contraction:during muscle contraction: (Choose the correct answer below). the M-line slides toward Z-disks actin
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During muscle contractionGroup of answer choices the M-line slides toward Z-disks actin pulls on myosin troponin forms a
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ATP hydrolysis activates the myosin to an "extended" position.Group of answer choices True False
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What would happen if someone stabbed your leg with a syringe full of calcium and injected the calcium directly into your muscle?
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Where are mechanical-gated channels found in the process of muscle contraction?Group of answer choices The T-tubule The nucleus
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Which of the following processes requires active transport?Group of answer choices Movement of calcium into the motor neuron at
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At the neuromuscular junction, an electrical signal from the motor neuron is translated to a chemical signal and then back to an
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Directions: There is more than one answer.Tetracycline... A. is commonly added to animal feed B. is useful for intracellular
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tetracycline (choose all that apply):A. is commonly added to animal feed B. is useful for intracellular infections such as Rocky
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Ampicillin and amoxicillin are:A. used to treat fungal infections B. effective only against gram positive bacteria C. effective
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Which of the following are mechanisms of action of antimicrobial drugs? (choose all that apply)A. inhibit nucleic acid synthesis
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Which of the following are true of vancomycin? (choose all that apply)a. it is used to treat MRSA b. use is often restricted to
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Which is not one of the antibioitics typically contained in over the counter antibiotic cream?polymyxin B erythromycin
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Tetracycline (choose all that apply):A. is useful for intracellular infections such as Rocky Mt. Spotted Fever B. is commonly
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Which of the following are mechanisms that bacteria use for antibiotic resistance? (select all that apply):A. Block/decrease
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Beta-lactamases are enzymes that (choose all that apply):A. make penicillin B. are made by some bacteria C. are made by humans
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What term describes when the effect of two drugs together is greater than the effect of either alone?A. commensalism B.
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the first discovered antibiotic was:penicillin azithromycin tetracycline novobiocin
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ampicillin and amoxicillinA. are effective against gram positive and gram negative bacteria B. are effective only against gram
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It is most difficult to find a drug with selective toxicity whenA. the microbe has many cellular similarities to human cells B.
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Which of the following might be used to treat fungal infections? (choose all that applies and is right)A. primaquine B.
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Erythromycin and Azithromycin are used to treatA. Fungal infections B. Malaria C. Ear and respiratory infections and others
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what is antibiotic resistance?A. The ability of bacteria to multiply rapidly B. The ability of previously sensitve species of
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The original drug that was used to treat malaria is:A. miconazole B. amphotericin B C. Rimantadine D. Quinine
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Interferons are used as treatment for what types of infections?A. fungal B. viral C. protozoal D. bacterial
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Interferons are used as treatment for what types of infections?fungal viral protozoal bacterial
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In general, what is the common mechanism of action of antifungals?A. stop cell wall synthesis B. Stop protein synthesis C. They
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2. 74 views
carbapenems:A. are effective against most organisms isolated from hospital patients B. are used to treat ear infections C. are
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carbapenems:are effective against most organisms isolated from hospital patients are used to treat ear infections are effective
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Over half of the antibiotics are made byhelminths protozoa fungi bacteria
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which are mechanisms (select all that apply) of action of antimicrobial drugs?inhibit metabolic pathways altering cell surface
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What drug is the most versatile and effective antifungal and is often used to treat systemic fungal infections?tetracycline
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Selective toxicity means that:the drug kills bacteria but not helminths the drug kills microbes but is not harmful to the host
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Which type of antibiotics are most likely to cause side-effects?Antibiotics made from plants Broad spectrum antibiotics
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When is Tuberculosis shot given?
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A young female university student has been backpacking through the woods in Pennsylvania and presents to her primary care
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A male patient returned last weekend from a vacation in Kenya where he went on safari with his wife. He presents with fever,
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A male patient returned last weekend from a vacation in Kenya where he went on safari with his wife. He presents with fever,
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A male patient returned last weekend from a vacation in Kenya where he went on safari with his wife. He presents with fever,
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a man returned two weeks ago from a vacation in Africa and presents in the emergency room with a severe, spiking fever and
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Explain how organisms can become resistant to certain antibiotics AND what can we do to try to keep this from happening?
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List 3 DIFFERENT "mechanisms of action" of antimicrobial drugs AND how they work.
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BRIEFLY discuss why the use of triclosan can be problematic. Does it produce a residue?
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What is the best and appropriate sterilant or process of sterilization that is most suitable and effective for the item listed
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What is the difference between a bactericide and a chemical that is bacteriostatic?
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Use the events in the life cycle of Schistosoma mansoni to propose two different strategies to reduce the incidence of snail
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Use the events in the life cycle of Schistosoma mansoni to propose two different strategies to reduce the incidence of snail
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4) How does insect ecology and the life cycle of Plasmodium impact the epidemiology and pathogenesis of classic malaria?Provide
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4) How does insect ecology and the life cycle of Plasmodium impact the epidemiology and pathogenesis of classic malaria?Provide
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3) There were numerous cases throughout the United States of patients having bloody diarrhea all within a week of each other,
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Explain why a potentially rabid dog is held for up to two weeks to check for clinical signs of rabies. Are humans more similar
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The Black Plague has killed millions of humans over the course of history, yet we do not vaccinate against this disease. Why is
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What is the difference between Latent Tubeculosis Infection & Tuberculosis Disease? Write a paragraph.
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Difference between Latent Tubeculosis Infection & Tuberculosis Disease
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Which of the following neuron functions are NOT possible in a demyelinated neuron? Choose all that apply:Group of answer choices
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True/False: In a myelinated neuron, action potentials first generate at the axon hillock and then conduct along/down the axon
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What major functional structure is located in nodes of Ranvier that allow the axon in these regions to conduct?Group of answer
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Which of the following is/are the major function(s) of myelin? Choose all that apply:Group of answer choices speeding action
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Neurons in an individual with a demyelinating disease are able to detect stimuli but not respond to them.true or false.
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a. Find the critical points of f(x)=6x^4 e^-x.b. Use the First Derivative Test to locate the local maximum and minimum values.
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a. Find the critical points of f(x)=6x^4e^-x b. Use the First Derivative Test to locate the local maximum and minimum values. c.
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Keq expression for the following: Co + Cl2↔CoCl2
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A ball is thrown with an initial velocity of ⃗⃗ ( ̂+ ̂) m/s. When it reaches the top of itstrajectory, neglecting air
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Two positive charges of magnitude 5.0 x 10-6 C and 6.0 x 10-6 C are separated by a distance of 0.03m. Calculate the Coulomb
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A positive charge of magnitude 3.0 x 10-8 C and a negative charge of magnitude 4.0 x 10-8C are separated by a distance of 0.02
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THE 1980’s EARLY 21st CENTURY PRACTICEHow were Ronald Reagan’s Cold War policies different from those of previous
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2. 2,192 views
1. 7/sqrt 7 - sqrt 3 Rationalize the denominator2. x-3/x-4 divded by x^2-1/x. state the restrictions on the variable and
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A codon on the template strand of DNA has the following sequence: CGATTA. Write in the mRNA sequence that is transcribed from
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Write the word being defined. 1. el que juega 2. el que guarda la portería 3. el que mira el partido 4. el conjunto o grupo de
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In Act I, Scene 1, Ruth states, “Well, Lord knows, we’ve put enough rent into this here rat trap to pay four houses by
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Raisin in the SunUse the following quote from Act I Scene I to help identify what Walter's internal conflict is. WALTER (Looking
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The following questions are about"The Middle Passage" by Oladaugh EquianoUse the following passage to answer questions 1 & 2:
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Please Help!Jerry, Jack and Sophie are all hoping to save money! Jerry thinks saving money in a shoe box in his closet every
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A bakery made 100 donuts. In the display case,40/100 were chocolate, 3/10 were glazed, and the rest were cinnamon. Which
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Ari found four 1-dollar bills and 3 dimes under his bed. How much money did he find?
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a body accelerated uniformly from rest at 2m/s calculate it velocity after travelling 9m
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A 6kg mass is resting on a horizontal surface. it is determined that a force of 20N will start the object sliding and keep it
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In a car, the brakes stop the tyres while friction between the tyres and the road surface stops the car. On a wet road the
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A mass 20.0g of petrol was burnt in air. The heat produced was used to heat 2.5 litres of water. Given that the heat value of
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7. (a) The following elements represent atoms of elements showing their mass numbers and atomic numbers:40 Ar and 39 K 18 19 i.
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(b) Given a bottle containing 9M-H2SO4 calculate the number of :-(i) Grammes of the acid in 1 dm3 (ii) Moles of the acid in
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1. Josefina Correct answerse lava las manos en el lavabo. Josefina Correct answer lava la ropa en casa de su madre.
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The smallest positive integer value of n for which 99 n is a multiple of 24
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The smallest positive integer value of n for which 168 n isa square number
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A pineapple drink contains 15% pineapple jice. How much pure pineapple juice should be added to 8 quarts of pineapple drink to
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An apple fell down from a tree. The work done by gravity on the apple is equal to 3.42J. If the apple is equal to 0.10kg, how
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Lucy's dog needs medication. She told the veterinarian that the dog weighs 25 lb. The medicine is measured as 12 mg for each
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A survey found that out of 150 citizens, 180 said they
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Find the solution of s in -30s=150
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briefly state what the kinetic theory says (2 points)
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whats the danger of the covid-19 shot
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whats the risk of covid-19 shots?
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the length of the rectangular bookmark required to fay is 20 plus twice its width and if the perimeter of the bookmark is 340 cm
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fay was assign to make a bookmark and the length of the rectangular bookmark required to her is 20 plus twice its width if the
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Calculate the pH of 0.15M hydrazoic acid, HN3. Ka = 1.8 x 10-5 .
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an aircraft factory manufactures airplane engines. The unit cost c (the cost in dollars to make each airplane engine) depends on
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suki is trying to solve the equation 62.75 + x 92answers possible?
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kinyua spent 1/4 of his net January on school fees
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