Description : The drug of choice for neurocysticercosis is: A. Albendazole B. Niclosamide C. Praziquantel D. Ivermectin
Last Answer : A. Albendazole
Description : Which anthelmintic drug acts through a specific glutamate gated Cl– ion channel found only in nematodes: A. Ivermectin B. Niclosamide C. Pyrantel pamoate D. Praziquantel
Last Answer : A. Ivermectin
Description : Select the drug that is used orally to treat scabies: A. Permethrin B. Ivermectin C. Praziquantel D. Crotamiton
Last Answer : B. Ivermectin
Description : When a neuron is in resting state i.e., not conducting any impulse, the axonal membrane is (a) comparatively more permeable to Na+ ions and nearly impermeable to K+ ions (b) equally permeable to both ... + and K+ ions (d) comparatively more permeable to K+ ions and nearly impermeable to Na+ ions.
Last Answer : (d) comparatively more permeable to K+ ions and nearly impermeable to Na+ ions.
Description : The most probable mechanism of action of mebendazole is: A. Depolarization of membrane and spastic paralysis of the worm B. Hyperpolarization of membrane and flaccid paralysis of the worm C. Loss of ... inhibition of glucose uptake in the worm D. Tegument damage and leakage of contents of the worm
Last Answer : C. Loss of intracellular microtubules and inhibition of glucose uptake in the worm
Description : There are two properties of the cell necessary to maintain nonequilibrium cellular composition; the first is selectivity and the second is energy conversion. Which of the following statement(s ... transported via secondary active transport include hydrogen ions, calcium, amino acids and glucose
Last Answer : Answer: c, d The selectivity of the plasma membrane, although impressive, cannot account for the nonequilibrium composition of living cells. A cell can be maintained in a nonequilibrium state only by ... to drive the transport of a second species such as protons, calcium, amino acids, or glucose
Description : A striking feature of living cells is a marked difference between the composition of the cytosol and the extracellular milieu. Which of the following statement(s) concerning the mechanisms of maintenance ... d. The selectivity of cell membranes relates only to ions and not organic compounds
Last Answer : Answer: a The survival of the cell requires that cytosolic composition be maintained within narrow limits, despite the constant influx of nutrients and the simultaneous outflow of waste. A ... be altered drastically as a result of regulatory or signaling processes that occur within the cell
Description : What is a semi-permeable membrane? -Biology
Last Answer : answer:
Description : Why is the cell membrane considered a semi-permeable membrane? -Biology
Description : what is a selectively permeable membrane -Biology
Description : What is the selectively permeable membrane of the cell? -Do You Know?
Description : A tube of uniform cross sectional sectional area `1 cm^(2)` is closed at one end with semi permeable membrane. A solution having 6g glucose per 100 ml
Last Answer : A tube of uniform cross sectional sectional area `1 cm^(2)` is closed at one end with semi permeable membrane. A ... k^(-1)`, density of Hg=13.8 g/cc)
Description : $ Positive diffusion occurs against the concentration gradients. ! Osmosis does not require a semi-permeable membrane.
Last Answer : $ Positive diffusion occurs against the concentration gradients. ! Osmosis does not require a semi-permeable ... D. If both As and R are wrong.
Description : $ The cell membrane helps in pinocytosis and phagocytosis. ! Cell membrane is permeable.
Last Answer : $ The cell membrane helps in pinocytosis and phagocytosis. ! Cell membrane is permeable. A. If both As and ... wrong D. If both As and R are wrong.
Description : What do the terms selective permeability and semi permeable to have to do with the cell membrane?
Last Answer : Need answer
Description : What is the process in which water moves from an area of high concentration to an area of low concentration across a selectivity permeable membrane?
Description : Mitochondrial membrane is permeable to (A) Short chain fatty acids (B) Medium chain fatty acids (C) Long chain fatty acids (D) All of these
Last Answer : Answer : A
Description : In all cells the cytoplasm is externally bounded by a semi - permeable membrane. It is known 4s ..........0+5
Last Answer : Cell membrane/Plasma membrane
Description : What is selectively permeable membrane?
Last Answer : A membrane which controls the movement of materials passing through it is called a selectively permeable membrane. It allows some but not all substances to pass through it.
Description : Plasma membrane in resting condition is very permeable to a. K b. Cl c. Both d. None of them
Last Answer : Cl
Description : Which of the following statements regarding mitochondrial membrane is not correct ? (a) The outer membrane resembles a sieve. (b) The outer membrane is permeable to all kinds of molecules. (c) ... in the outer membrane. (d) The inner membrane is highly convoluted forming a series of infoldings.
Last Answer : (c) The enzymes of the electron transfer chain are embedded in the outer membrane.
Description : Which of the following statements regarding mitochondria is incorrect? (a) Mitochondrial matrix contains single circular DNA molecule and ribosomes. (b) Outer membrane is permeable to monomers of ... transport are embedded in outer membrane. (d) Inner membrane is convoluted with infoldings.
Last Answer : (c) Enzymes of electron transport are embedded in outer membrane.
Description : The process of diffusion of one liquid into the other through a semi permeable membrane is called (A) Viscosity (B) Osmosis (C) Surface tension (D) Cohesion
Last Answer : Answer: Option B
Description : What is the selectively permeable membrane of the cell?
Last Answer : Plasma lemma
Description : 11. Which of the following theories explain that plasma membrane is selectively permeable: (a) Unit membrane theory (b) Cascade theory © Sandwich theory (d) Fluid Mosaic theory
Last Answer : Answer: d Fluid Mosaic theory
Description : A semi permeable membrane is stretched across a chamber filled with water. The membrane is only permeable to water. 60 mg of salt is added to the left side of the chamber. Which of the following will ... right side (C) Water will move toward the left side (D) salt will move toward the left side
Last Answer : (C) Water will move toward the left side
Description : Nitrogen oxidation (nitrification)refers to the A- conversion of ammonium ions into nitrates through the activities of certain bacteria B- changing of atmospheric nitrogen (N2) to nitrogen compounds C- sulfur is oxidized to the sulfate form through Thiobacillusbacteria D- none of the above
Last Answer : conversion of ammonium ions into nitrates through the activities of certain bacteria
Description : Atoms with varying mass numbers are called ________. a. Electrons b. Ions c. Isotopes d. Neutrons
Last Answer : c. Isotopes
Description : Which one of the following pairs is matched correctly? a. Ions - covalent bonds b. Carbon - organic compounds c. Glucose - enzyme d. Thymine - amino acid
Last Answer : b. Carbon - organic compounds
Description : An inert element has electron shells that a. Overlap The Shells Of Other Atoms. b. Are Completely Filled With Electrons. c. Yield Hydrogen Ions. d. Form Covalent Bonds.
Last Answer : b. Are Completely Filled With Electrons.
Description : Atoms of the same element that have different numbers of neutrons are called _______ a. isotopes b. ions c. isomers d. inert elements
Last Answer : a. isotopes
Description : All of the following statements regarding pentamidine isethionate are true except (a) it is indicated for treatment or prophylaxis of infection due to Pneumocystis carinii (b) it may be ... clinically significant effect on serum glucose (d) it is effective in the treatment of leishmaniasis
Last Answer : Ans: C
Description : Which of the following drugs is effective against Trichomonas vaginalis C A. Penicillin B. Streptomycin C. Metronidazole D. Pentamidine
Last Answer : Metronidazole
Description : Pentamidine is a first line drug for the following disease: A. Toxoplasmosis B. Pneumocystis carinii pneumonia C. Actinomycosis D. Leishmaniasis
Last Answer : B. Pneumocystis carinii pneumonia
Description : Pentamidine should be used to treat Kala azar only when sodium stibogluconate has failed or is not tolerated because: A. It achieves lower cure rates B. It is more toxic C. It requires a longer course of treatment D. Relapses are more common with it
Last Answer : B. It is more toxic
Description : The drug of choice for Kala azar is: A. Pentamidine B. Amphotericin B C. Sodium stibogluconate D. Ketoconazole
Last Answer : C. Sodium stibogluconat
Description : Can we start a rumor that any people who take Ivermectin to 'cure' Covid begin to whinny and neigh after a week or two?
Last Answer : Actually my brother sent me an article where 85% of men who take it have ED or erectile disfunction after taking this drug meant to de-worm a horse.
Description : What is true of ivermectin: A. It is the most effective drug for strongyloidosis B. It is the drug of choice for onchocerciasis C. It can be used to treat pediculosis D. All of the above
Last Answer : D. All of the above
Description : Drug/drugs effective in filariasis include: A. Ivermectin B. Albendazole C. Diethyl carbamazine citrate D. All of the above
Description : Praziquantel is effective against B A. Trematodes B. Cestodes C. Nematodes D. None
Last Answer : Cestodes
Description : Praziquantel is effective against the following helminth(s): A. Taenia saginata B. Diphyllobothrium latum C. Schistosomes D. All of the above
Description : For the treatment of Hymenolepis nana infestation, praziquantel has the following advantage(s) over niclosamide: A. It is better tolerated B. It requires single dose treatment against 5 days treatment with ... C. A purgative is required after niclosamide but not after praziquantel D. All of the abov
Last Answer : B. It requires single dose treatment against 5 days treatment with niclosamide
Description : Praziquantel is preferred over niclosamide for Taenia solium infestation because: A. It achieves higher cure rates B. It produces fewer side effects C. It does not lead to digestion of worm and kills encysted larvae, so that chances of cysticercosis are minimized D. Both ‘A’ and ‘B’ are correct
Last Answer : C. It does not lead to digestion of worm and kills encysted larvae, so that chances of cysticercosis are minimized
Description : Why is microbial control necessary and what are some of the factors that go into the choice of a particular antimicrobial agent?
Last Answer : The control of microorganisms is an important way of preventing pathogens from reaching the body.Sterilizing laboratory equipment, hospital supplies, and industrial apparatus helps contain contamination.The choice of a ... , the acidity or alkalinity of the area, and the presence of organic matter.
Description : _____ is when an antimicrobial drug should harm the infectious agent but not the host. a. Selective toxicity b. Toxic dose c. Therapeutic dose d. Chemotherapeutic index
Last Answer : a. Selective toxicity
Description : A disease in which the agent is acquired directly from the environment and is not transmissible is a/an _____ disease. a. Local b. Secondary c. Noncommunicable d. Acute
Last Answer : b. Secondary
Description : All the following apply to trachoma except: a. the disease occurs in the eyes. b. tetracycline is helpful in therapy. c. tiny, pale nodules form on the conjunctiva. d. the agent of the disease is Treponema pertenue.
Last Answer : d. the agent of the disease is Treponema pertenue.
Description : Bartonelia henselae is the causative agent of this skin disease. a. Leprosy b. Cat-scratch disease c. Necrotizing fasciitis d. Rat-bite fever
Last Answer : a. Leprosy
Description : The cells of Leptospira interrogans, the causative agent of leptospirosis, have a _____ shape. a. Rod b. Spiral c. Spherical d. Spirochete
Last Answer : d. Spirochete