Heroin mimics the actions of endorphins, inhibiting pain signals and creating a “high” feeling. Heroin is an example of a(n): a. protagonist. c. agonist. b. antagonist. d. glial cell.
Q: Analyzing: Each nucleotide in a DNA molecule consists of a: * sulfur group, deoxyribose, and a nitro...
A: 1.
Q: What is the relative inhibition of the kinase if the substrate concentration equals Ks And the conce...
A: Ks is substrate concentration at which reaction velocity is 50% of Vmax whereas Ki is an indication ...
Q: The principal DNA polymerase in eukaryotic leading strand DNA replication is: DNA polymerase α (a...
A: Introduction - To transfer genetic information from a parent cell to a daughter cell during cellula...
Q: The discussion this week explores the reasons why carbon dioxide changes the affinity of oxygen to h...
A: Hemoglobin is a respiratory pigment present in red blood cells. It is a conjugated protein and gives...
Q: Which of the following amino acid-classification pair is incorrect? O Lysine-basic amino acid O Phen...
A: Amino acids are building blocks of protein. All Amino acids consist of - COOH ( carboxyl group ) and...
Q: When are free radicals formed? A. Only in disease states, because that is what initiated the dise...
A: Free radicals can be defined as a type of molecule that has 1 or >1 unpaired electron & they ...
Q: In SOAP Experiment, Do you think the type of fat/oil used will make a difference in the product? Why...
A: Soaps are sodium salts of fatty acids and are form by the saponification reaction.
Q: QUESTION 7 The monosaccharides shown below are H. HO H -HO- HO H H- HO H но HO- HO- CH,OH CH,OH O En...
A: Isomers are molecules with the same molecular formula, but different arrangement of atoms. Isomers a...
Q: The enzyme that removes the RNA primer from the Okazaki fragment is: DNA pol III DNA ligase ...
A: Introduction: DNA is the hereditary material that defines every cell. It is found within the nucleus...
Q: Which of the following differentiates chitin with cellulose? Chitin has the alpha (1-4) glycosidic l...
A: Polysaccharides are carbohydrates composed of more than 100 monomeric units. Polysaccharides are cla...
Q: (1) Which statement about glycolysis is FALSE?
A: "Since you have asked multiple question, we will solve the first question for you. If you want any s...
Q: la: Several factors (including agarose gel concentration, time and current) affect migration of DNA ...
A: Agarose gel electrophoresis is the technique that is used for separation of DNA molecules based on t...
Q: Which of the following statements concerning the D- and L- forms of a monosaccharide is incorrect? O...
A: Sterioisomers are recognised by L and D forms in monosaccharides. The D form is dextrorotatory (rig...
Q: MATCHING TYPE; Match A to B A. Acrolein tesT Benedicts test ...
A: biochemical test : the test that are performed on samples of serum, solution, plasma , urine where ...
Q: 5. At pH 7, the net charge of tyrosine is? А. -2 В. -1 С. 0 D. +1 E. +2
A: PH is defined as the negative logarithm of H+ ion concentration. The amount of H+ ions in a solution...
Q: What are the nucleotides of the mRNA from gene Z? (see the attached picture)
A: Transcription is the process of synthesis of mRNA from DNA. The DNA strand which acts as the templat...
Q: Polysaccharides generally do not give a positive test with Fehling’s solution. Why? *
A: Postive test with Fehling's solution- Given by reducing sugar Polysaccharides- Long chain of monone...
Q: All are correct about DNA gyrase in E. coli EXCEPT: It works to remove positive supercoiling intr...
A: DNA gyrase is the first type II topoisomerase discovered from E. coli. DNA gyrase has the ability to...
Q: Applying: Prokaryotic and eukaryotic cells have many differences, but they also share some common fe...
A: Prokaryotes are microscopic single-celled organelles that lack nuclear envelopes. Their cell wall is...
Q: What are the important considerations that you have to remember in antibody screening?
A: Since you have asked multiple question, we will solve the first question for you. If you want any sp...
Q: 1H. please help me in detail. For molecular Mechanism of ATP versus GTP selectivity of adenylate kin...
A: ATP is the major energy carrier in any cell where as GTP is selective for only a few pathways. Adeny...
Q: Phytochemical test Physical description of extract: Color: Reddish brown Odor: Aromatic Transparency...
A: Phytochemical tests are the confirmatory tests for the presence of different components like alkaloi...
Q: Given: One way to think about the hexokinase is that it couples the hydrolysis of ATP (AG° - -30.5 k...
A: Hexokinase: Hexokinase phosphorylate Glucose to Glucose-6-PO4 by utilizing one molecule of ATP. Here...
Q: TRUE OR FALSE Coconut oil will give (positive) result to Molisch test.
A: Molisch test is used to detect presence of carbohydrate in a mixture or sample. This test is based o...
Q: Why is it important to study the strength of acids and bases?
A: Any hydrogen-containing substance capable of transferring a proton (hydrogen ion) to another chemica...
Q: The energetic driving force for the synthesis of the new strand is the removal of the pyrophosphate ...
A: Replication is the process by which new Deoxy Nucleoside Monophosphates (DNTP) are added to the 3' e...
Q: 2. The diagram below shows the chemical structure of a lipid molecule. A В a. Is it a sphingophospho...
A: As you have asked multiple sub part questions we are supposed to answer only first 3 subparts.if you...
Q: How many microliters of the 500mM colchicine is required for making 1.5mL cell culture with 2mM colc...
A: Volume of cell culture = 1.5 ml = 1500 microL(V2) (1 ml = 1000 microL) Desired colchicine concentrat...
Q: H. Draw a plot showing reaction velocity as a function of substrate concentration for Ks = 50 µM, Vm...
A: First we need to find the values of (V0) at various substrate concentrations ([S0]). For this we dra...
Q: Explain energy has bias in Biochemistry
A: Bioenergetics is the quantitative study of the energy transductions that occur in living cells and ...
Q: The ammonium sulphate-precipitated phycocyanin (Sample 3) still contains a lot of other proteins. Br...
A: Phycocyanin - Accesory pigment to chlorophyll and is the pigment-protein complex belongs to phycobil...
Q: To carefully prepared mitochondria were added succinate, oxidized cytochrome c, ADP, orthophosphate,...
A: Mitochondria are vital cellular organelles of every cell. They're known as the cell's powerhouse bec...
Q: Rhodium and other transition metals are generally used in heterogeneous/homogeneouslenzyme catalysis...
A: Enzymes are the biocatalyst which promotes the biochemical reactions in any living organism. The enz...
Q: To understand how a signaling pathway works, it is often useful to isolate the cell-surface receptor...
A: In recent years, affinity chromatography, a liquid chromatographic technique for separation and anal...
Q: Explain why oils become rancid. Provide short and concise answer with relevant examples, if necessar...
A: Fats are a class of lipid molecules that are triacylcylgerols having a glycerol backbone with the hy...
Q: Which of the following is not a carbohydate? O C7H1407 O C5H1005 O C5(HO)5 O C6(H2O)6
A: Carbohydrates are macronutrients and are one of the three main sources of energy for our body. They ...
Q: Which monosaccharide will be produced when sucrose undergoes hydrolysis reaction? O Glucose and arab...
A: Glucose is a monosaccharide and it is a simple sugar that is the most important source ...
Q: Which among the following indicates correct the three-letter abbreviation and one-letter abbreviatio...
A: There are twenty naturally occurring amino acids. These amino acids are conventionally represented b...
Q: INTRUCTIONS: - Do not copy here in BARTLEBY or GOOGLE - PLEASE ANSWER PROPERLY Failed to follow inst...
A: The most prevalent lipids in nature are fats and oils. They give life energy, protect bodily organs,...
Q: Between glucose and fructose, which monosaccharide is metabolized faster? Why?
A: Both glucose and fructose are monosaccharides. Both undergo oxidation and produce two molecules of p...
Q: Mention two biological advantages to an organism that stores its carbohydrate reserves as starch or ...
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any ...
Q: In 3-5 sentences, discuss the similarity and the difference between chitin and cellulose.
A: Chitin and cellulose are homopolysaccharides. Polysaccharide is of two types homo and het...
Q: You are a dietitian working in a hospital. You noticed that the resident physician typically orders...
A: Malnutrition is a risk factor for patient morbidity and mortality on its own. It has been linked to ...
Q: 1.Fructose and galactose can be distinguished by which of the following reagents? * a.Fehling’s reag...
A: Both glucose and fructose are monosaccharides. Glucose is aldohexose and fructose is a keto hexose. ...
Q: Can we determine the type of monosaccharide with the Molisch experiment?
A: Carbohydrates have the chemical formula Cn(H2O)n and are organic molecules. This formula, however, d...
Q: Which of the following pairs of carbohydrates are disaccharides? O sucrose and maltose O cellobiose ...
A: Carbohydrates are composed of carbon, oxygen, and hydrogen which are connected by the glycos...
Q: How protein activity can be modulated by alternative splicing ?
A: The process of selecting distinct combinations of splice sites within a messenger RNA precursor (pre...
Q: Will a decrease in carbon dioxide (CO2) shift the binding curve of hemoglobin? Will it shift to the ...
A: Hemoglobin (Hb) is a protein present in the red blood cells which is a carrier of oxygen to the body...
Q: Discuss the functions and components of Biuret dye in protein content determination.
A: Since you have asked multiple questions, we will answer only first question for you. In order to get...
Q: (b) r , The following polypeptide sequence has three alpha helices and two B turns. Based on what we...
A: An amino group and an acid group-containing organic molecules are called Amino acids. ...
Heroin mimics the actions of endorphins, inhibiting pain signals and creating a “high” feeling. Heroin is an example of a(n): a. protagonist. c. agonist. b. antagonist. d. glial cell.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Given what you already know about the sensation of pain, what is the expected change in membrane potential when pain is felt by sensory receptors? Select one: a. The nerve impulses increase in strength and lower the threshold potential. b. The nerve impulses occur more frequently, thereby transmitting more action potentials according to the intensity of pain. c. The nerve impulses occur more frequently and prevent neurons from entering the refractory period. d. The nerve impulses increase in strength, thereby making the maximum membrane potential higher than normal.The difference between the channels along the axon and the channels in the axon terminal is that? a) axon channels are voltage-gated sodium channels and axon terminal channels are voltage-gated calcium channels b) there is no difference c) axon channels are voltage-gated sodium channels and axon terminal channels are ligand- gated sodium channelsWhich of these was NOT a theory of a nerve function near the end of the 17th century? A. nerve signal through secreted droplets of fluid B. Nerve signal by actual movement of cells from different body areas C. Spirits running through hollow nerves D. Nerves signal through vibrations
- The brain knows whether an incoming nerve impulse is light, sound, or pain because of thea. nature of the sensory receptor.b. frequency of the sensory signal.c amplitude of the sensory signal.d. wiring to specific CNS locations.The process of myelination results in an increase in white matter. Myelination happens for all brain regions. Because of increases in myelination A) At the same time; neural signals can travel through the brain faster B) At different times; neural signals can travel through the brain faster C) At different times; neurogenesis is improved D) At the same time; neurogenesis is improvedThe feel of your pencil on your fingertip is carried through the thalamus to the cortex. Which part of the cortex does this information reach first? a. hippocampus b. limbic cortex c. parietal lobe d. frontal lobe Which of the following is NOT a catecholamine? a. norepinephrine b. serotonin c. epinephrine d. dopamine
- Which of the following statements about the intensity of a nerve response is true? Select one: a. A stimulus reaching the threshold level may or may not propagate a nerve impulse. b. A small voltage shift and a large voltage shift will yield the same nerve impulse as long as the stimulus reaches the threshold level. c. All stimuli, regardless of the strength, will always generate a nerve impulse. d. A stimulus resulting in a greater voltage shift will result in a stronger nerve impulse and increased sense of perception in the brain.When you look at a physical object, like a photograph, light waves emanating from the object stimulate receptors in your eye. Technically, the light waves that reach your eye are called a ____ stimulus, and the photograph would be considered a ____ stimulus. A) proximal; distal B) distal; proximal C) central; peripheral D) peripheral; centralwhat happens when an antagonist binds to an inhibitory neurotransmitter receptor? a) it would decrease inhibitory response b) increase inhibitory response c) ion channels will open d) EPSP will occur
- How do neurotransmitters directly affect the postsynaptic neuron? A)They cause a change in the electrical potential, exciting the neuron and causing it to fire b)They cause a change in the electrical potential, either exciting or inhibiting the next neuron. C)They cause a change in the electrical potential, inhibiting the neuron and stopping it from fi d)They connect with the appropriate receptor on the postsynaptic neuronNeurotransmitters are released by_____ . a. axon terminals c. dendrites b. a neuron cell body d. glial cellsThe release of a neurotransmitter from a terminal button produces an inhibitory postsynaptic potential (IPSP) in the postsynaptic neuron. What is the most likely mechanism by which this occurs? A. the neurotransmitter opens chemically activated chloride channels B. the neurotransmitter activates a second messenger which then opens calcium channels C. the neurotransmitter is glutamate D. the neurotransmitter acts on a G-protein linked receptor which opens sodium channels