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Digital Signal Processing Questions and Answers Analogue vs. Digital Signals - AnswersAuditory perception = analogue signals stimulating the auditory system Digital signals = electronic equipment Main difference = continuity -analogue signals are continuous and defined at every instant in time -digital signals are discrete and defined at only certain instances in time Advantages of digital signals - Answers- immune to degradation when copied - easier to apply signal processing -...

DGT301 - Part 2 - Digital Signal Processing Answers QN=52 Periodic signals are power signals a. True b. False - Answersa QN=53 Select a right statement: a. Z{x*(n)} = X*(z*) b. Z{x*(n)} = - X*(z*) c. Z{x*(n)} = X*(z) d. Z{x*(n)} = X(z*) - Answersa QN=54 Computational complexity refers to a. the number of arithmetic operations required to compute an output value for the system. b. the number of times a fetch from memory is performed. c. the number of times a comparison between...

BIOC 3021 EXAM 1 REVIEW SHEETS SOLUTIONS What are the six most common elements present as covalent components of bioorganic compounds? - AnswersH, O, N, C, S, P, Cl What are covalent bonds, and how strong and permanent are they relative to other bonds in living organisms? - AnswersCovalent bonds are the sharing of electrons between two species. Non polar covalent bonds are the strongest What is the difference between polar and nonpolar covalent bonds? What combinations of atoms are in...

BIOC 3021- Exam 1 Questions and Answers what type of protein structure is formed by H bonding of amino acid residues? - Answerssecondary what are the 2 basic types of secondary protein structure? - Answersalpha helix and beta sheet Describe the alpha helix - Answersa spiral structure formed by a single polypeptide chain; each C=O is H bonded to the N-H group that is 4 amino acids down the strand Describe the beta sheet - AnswersH bonds are between strands rather than within a stra...

BIOC 3021 Exam 1 Lecture 1 Verified Answers Most abundant elements in living organisms - AnswersHydrogen, oxygen, carbon, nitrogen, phosphorous, sulfur Number of essential minerals for body function - Answers17 Strength of covalent bonds - AnswersStrongest bonds in biomolecules Covalent bond - AnswersAn electron is shared between atoms Ionic bond - AnswersAn electron is donated between atoms Hydrogen bond - Answersthe H takes on a partial positive charge and the electronegati...

BIOC 3021 Exam Questions and Verified Answers tRNA - AnswersTransfer RNA Decodes mRNA into a protein Functions at the ribosome during Translation rRNA - AnswersRibosomal RNA Essential for protein synthesis Predominant material in a ribosome (60%) Catalyzes polypeptide formation (Ribozyme) mRNA - AnswersMessanger RNA Conveys genetic info from DNA to ribosome Specifies the amino acid sequence of protein products Which type of RNA catalyzes the synthesis of proteins? - Answersr...

UMN BIOC 3021 Exam 2 Questions and Answers Proteins that can be classified according to the type and arrangement of secondary structure - Answers(a) Antiparallel α-helix proteins (b) Parallel or mixed β-sheet proteins (c) Antiparallel β-sheet proteins (d) Metal- and disulfide-rich proteins Protein Domains or Modules - Answersamino acid sequences that are used repeatedly in the same protein or that are found in different proteins How many proteins domains? - Answers40-100 St...

BioC 3021 Exam 2 Questions and Answers Michaelis- Menten Equation - AnswersThe velocity of an enzyme reaction (V) is equal to the maximum reaction velocity (Vmax) times the substrate concentration (S) divided by substrate concentration plus the Michaelis constant ( Km) increases - AnswersRate of product formation ____________ as the initial substrate concentration is raised. Velocity - AnswersHow rapidly product is being formed by the reaction Vmax - AnswersFastest reaction rate po...

BIOC 3021 Practice Exam 1 Questions and Answers A buffer solution is made from a weak acid, HA (pKa 6.0) and its conjugate base A-. What is the ratio of the base A- to the acid HA at pH 5.0? - AnswerspH = pKa + log[A-]/[HA] 5 = 6 + log[A-]/[HA] -1 = log [A-]/[HA] 10^-1 = ratio raio = 0.1 Which of these elements is the least common in organic compounds within living cells? a) C b) F c) S d) N - AnswersB- fluoride If the hydrogen ion concentration of the blood increas...

BIOC 3021 Exam 2 Quiz Questions and Answers If a noncompetitive inhibitor is added to an enzyme reaction then: a. The Vmax increases and the Km decreases b. The Vmax decreases and the Km increases c. The Vmax stays the same and the Km decreases d. The Vmax stays the same and the Km increases e. The Vmax decreases and the Km stays the same - Answerse. The Vmax decreases and the Km stays the same If a competitive inhibitor is added to an enzyme reaction then: a. The Vmax incr...

UMN BIOC 3021 Exam 2 (Lectures 7-12) Answers competitive inhibitor - Answersbinds to active site competes with substrate will raise apparent Km will not alter Vmax Vmax - Answersat high substrate, a competitive inhibitor will not alter this non-competitive inhibitor - Answersbinds to distant site doesn't compete with substrate will not alter apparent Km will alter Vmax enantiomers - Answersnon-superimposable mirror images epimers - Answersstereoisomers that differ in st...

BIOC 3021: Carbohydrates Exam Questions and Answers Monosaccharides - Answers(CH2O)n (n=3 or more) examples: glucose, fructose, galactose, ribose and deoxyribose Oligosaccharides - Answersconsist of two to ten monosaccharides examples: sucrose, lactose and maltose Polysaccharides - Answers-Polymers of monosaccharides that contain hundreds or thousands of monosaccharide units -May be linear or branched polymers examples: starch, glycogen, cellulose, chitin a-d-glucopyranose - An...

BIOC 3021 Lecture 1 Reviewed Solutions What are the six most common elements present as covalent components of bioorganic compounds? - AnswersCarbon, Hydrogen, Nitrogen, Oxygen, Sulfur, Phosphorus What are covalent bonds, and how strong and permanent are they relative to other bonds in living organisms? - AnswersCovalent bonds share electrons between the two atoms. They are the strongest type of bond and are relatively permanent in living organisms. What is the difference between pola...

BIOC 3021- Exam #3 Questions and Answers Catabolism - AnswersProcesses that break down food for energy and building blocks -Example: glycolysis Anabolism - AnswersProcesses that use energy and building blocks to make molecules we need -Example: photosynthesis Sun - AnswersAll life depends on the energy acquired from the _________. -Light energy is absorbed during photosynthesis, which promotes electrons to higher energy orbitals (excited state) -Excited electrons store energy and...

BIOC 3021 Chapter 11 Review Set Questions and Answers Sterols - Answersas hormones. have a perhydrocyclopentaneophenanthrene ring structure. not aromatic and not planar Fatty acids - Answerslinear hydrocarbons with 1 carboxyl group at one end and many methylene groups in the side chain. generally have even number of C because they are synthesized and degraded 2 C at a time. most range from 12-24 C hydrophobic character increases as the chain length increases double bonds incr...

BIOC 3021 Unit 3 Questions and Answers When glucose is metabolized to carbon dioxide what percentage of the available energy is captured as chemical energy in the form of ATP? - Answers30% Catabolic pathways such as glycolysis often trap energy in the biochemical intermediates: - AnswersNADH, ATP Which biochemical intermediate is the most oxidized? - AnswersCO2 Which single reaction in glycolysis is bypassed by two reactions in gluconeogenesis? - Answersconversion of PEP to pyruvat...

BIOC 3021: Lecture 9 Questions and Answers Albumin - Answers1. Normal concentration of about 4000 mg/100 ml 2. Help stabilize the osmotic pressure of the blood—in this capacity. 3. Can bind 7 fatty acids during their transport through the blood. Alpha-globin - Answers1. Concentration of 2500 mg/100 ml 2. Include various lipoproteins, protease inhibitors, and proteins that function as hormone inhibitors and in ion transport. Beta-globin - Answers1. Concentration of about 1000 mg/1...

UMN BIOC 3021: Exam 3 Questions and Answers inter mitochondria membrane - Answerse- transport and oxidative phosphorylation occur here oxidative proton pumps - Answershydrogen ion gradient created by catabolic pathways - Answersusually oxidative, usually release energy anabolic pathways - Answerssynthetic, usually involve reduction, use energy gamma and beta phosphates - Answersterminal phosphates of ATP, release hight amounts of energy upon hydrolysis adipose tissue - Answerss...

Workshop 2-BIOC 3021 Exam Questions and Answers Why does a plot of V vs S taper off and eventually reach a plateau at higher S levels? - Answers- When S levels are high, the M-M plot actually approaches a limiting value of Vmax. - At high (S), where V approximates Vmax, virtually all of the enzyme active sites are occupied by substrate. - The addition of more S would not significantly increase the rate of reaction, because the rate of reaction is limited by the total active sites availab...

BIOC 3021 Exam 4 Questions and Answers Which process requires a template? Select one: a. DNA replication b. Transcription of DNA to RNA c. Translation of RNA to protein d. Reverse transcription of RNA to DNA e. All of the above - Answerse. All of the above Exons are (Select one): a. Segments of a gene which do not code for a protein b. Segments of a gene which code for a protein c. Segments of mRNA that are excised from the message d. Segments of protein that are inactive e. ...