Biology question and answers for December 23, 2023
- Q How many ingredients from this cereal box label are sources of carbohydrates? Ingredients: Whole grain wheat, corn bran, sugar, glycogen, honey, salt, sucralose, evaporated cane juice, high fructose syrup from...
- Q Diamonds have a density of 3.51 kg/L. If you find a 0.52-Liter diamond while digging in your yard one day, what is the mass of the diamond?
- Q Structurally lipids are a very diverse group but they are all placed in one group because of what property?They all contain four interlocking ringsThey are composed of glycerol and fatty...
- Q which of the following statements is true regarding starches? a. are produced by cells of both plants and animals b. sugar monomers are connected by beta- 1,4-glycosidic bonds c. polymer...
- Q In 1962, three scientists who contributed to the discovery of the structure of the DNA molecule were awarded the Nobel Prize in Physiology and Medicine. The fourth scientist who contributed...
- Q Paragraph 5 discusses the importance of the discovery of the structure of the DNA molecule.What did this discovery allow scientists to confirm?A. Specific base pairing allowed DNA to duplicate itself.B....
- Q For each food listed below, choose whether it is a saturated fat or an unsaturated fat.Cream cheeseVegetable oilCorn oil
- Q Enolase is an enzyme that catalyzes one reaction in glycolysis in all organisms that carry out this process. The amino acid sequence of enolase is similar but not identical in...
- Q What is the purpose of the RNA primer in DNA replication?provide nucleotides with an exposed 3 endrecruits histone deacetylation proteinsestablishes the correct translational reading framesynthesizes the leading strand in piecesattaches...
- Q The building of complex organic molecules from simpler ones is called...AnabolismphotosynthesisOxidationFermentationCatabolism
- Q Which of the following statements is CORRECT?Thymine normally pairs with Cytosine in double-stranded DNAMonosaccharides are the monomer subunit of polypeptidesCarbohydrates, proteins, and nucleic acids are polymersAspartic acid is an example...
- Q What is the definition of an anabolic metabolic pathway? A pathway that releases energy and stores matter A pathway that releases energy and releases matter A pathway that stores energy...
- Q What are the major differences between DNA andRNA in eukaryotic cells? Select the three (3) bestanswers.DNA is a true nucleic acid, RNA is notDNA stores information about proteins, RNA also...
- Q If each round gray molecule shown above represents an nucleic acid molecule, then the large molecule made of all of them linked together must be a macromolecule.ProteinLipidCarbohydrateNucleic acid
- Q If each round gray molecule shown above represents an amino acid molecule, then the large molecule made of all of them linked together must be a ... macromolecule.ProteinLipidCarbohydrateNucleic acid
- Q According to the Brnsted-Lowry definition,a base is a proton donora base produces H+ ions in aqueous solutionsan acid acts as the solventan acid is a proton acceptora base is a...
- Q The active site of an enzymeincludes the entire enzymeincreases the energy of reactionis remote from the site of substrate attachmentis the region where the reaction takes placeis converted to a...
- Q An increase in the temperature of a solution usuallydecreases the solubility of a solid solute in the solutionincreases the solubility of a gas in the solutionincreases the solubility of a...
- Q A biologist working in a lab adds a compound to a solution that contains an enzyme and substrate. This compound binds to the enzyme and increases the rate at which...
- Q When liquid silver nitrate and liquid sodium chloride are combined, solid silver chloride forms along with a new liquid, sodium nitrate. Which substance represents the precipitate?Osilver nitrateO silver chlorideOsodium chlorideO...
- Q Which of the following is not a true statement related to healthy food choices that lead to weight loss?O It is necessary to avoid foods that contain fat in order...
- Q Which of the following is not a part of the male reproductive system?A.greater vestibular glands (Bartholin's glands)B. epididymisC.bulbourethral gland (Cowper's gland)D.prostate gland
- Q Catabolic reactions are coupled with ATP ____, whereas anabolic reactions are coupled with ATP ____.synthesis; hydrolysishydrolysis; synthesisamphibolism; repressiondeamination; beta oxidation
- Q Which of the following does not reflect anabolism?Beta oxidation of fatty acids to acetyl CoA.Enzyme production from amino acids.DNA replication from nucleotides.Fatty acid assimilation to form lipids.
- Q Enzymes are ....broken down in reactions that require energy inputproteins that function as catalystsused up in chemical reactionsnot needed for catabolic reactionsAll of the choices are correct.
- Q During which phase of cellular respiration is the majority of ATP formed?Krebs cycleGlycolysisProcessing of pyruvic acid for the Krebs cycleElectron transportAll phasesproduce the same number of ATP molecules.
- Q Feedback inhibition, a negative feedback mechanism that regulates enzymes, is bestdescribed assubstrate binding to DNA, blocking enzyme transcriptionproduct binding to DNA, blocking enzyme transcriptionsubstrate binding to enzyme in noncompetitive siteproduct...
- Q Gleevec is a chemotherapy drug used to treat cancer. What is the mechanism by which Gleevec blocks Abl kinase enzyme action?Gleevec reduces the ATP level in the body and starves...
- Q A drug binds to the active site of an enzyme. If it is bound to the active site of the enzyme, it prevents substrate binding. This drug would be considered...
- Q A student was asked to create a model to explain how a mutation that occurs during DNA replication will be inheritedWhere would the mutation need to be located in the...
- Q In your experiment, you may not have seen a significant difference between ethanol, propanol and butanol in the time to lyse the cells.Pick the most likely reason for this from...
- Q A cell membrane has a double layer of molecules. These molecules are made up of aphosphorus-containing "head" and two long, fatty acid "tails. "Which of the following bestexplains why the...
- Q Choose the antimicrobial category that is most selectively toxic.Antimicrobials that inhibit cell wall synthesisAntimicrobials that inhibit protein synthesisAntimicrobials that interfere with nucleic acid structure and functionAntimicrobials that inhibit folic acid...
- Q Based on the knowledge that cleavage is characteristic of crystals, which of the followinggems would not have this property?A. rubyB. emeraldC. pearlD. diamondE. sapphire
- Q What do the odds ratios demonstrate? The disease is strongly associated with...Smokers at the senior center who had indirect contact with recruitsDirect contact with recruits at the high school, but...
- Q Match the each carbohydrate listed withe the appropriate classification.PolysaccharideMonosaccharideDisaccharide
- Q Hydrogen peroxide is a substance that is produced as a byproduct of many cell processes. However, hydrogen peroxide is toxic to cells. In fact, if cells are unable to break...
- Q Heat is useful in the destruction of bacteria because heat...denatures enzymes by altering their 3D protein structuresprevents the production of folic acid in the celldepresses the uptake of minerals of...
- Q A non-competitive inhibition can be overcome by...C. increasing the temperatureE. None of the aboveA. increasing the concentration of substrateD. increasing the amount of coenzymeB. increasing the concentration of product
- Q 3. The active site is...A. a region in a cofactor that interacts with a particular enzymeD. a region of an enzyme to which the product of a reaction bindsB. a...
- Q What are Bohr protons and how do they relate to different mechanisms involved in the Bohr effect?
- Q 15. Origins of replication are thea. sites where DNA transcription starts.b. binding sites for the protein complex that initiates DNA synthesis.c. loops with two replication forks seen in replicating DNAd....
- Q Which of the following is NOT true of protein folding?in the process of folding, a protein passes through a number of intermediate statesthe "native state" of the protein is the...
- Q What is a half-life, in reference to dating fossils?the amount of volcanic rock in a fossilthe amount of time it takes for half of carbon-14 to decaythe amount of fossils...
- Q The series of reactions that release glucose monomers from glycogen is...O GlycocalyxO GlycogenesisO GlycogenolysisO GluconeogenesisO Glycolysis
- Q Which of the following is a primary participant in cloning an isolated gene?Restriction endonucleaseHost organisma vectorall of these
- Q Which of the following is best to sterilize heat labile (heat unstable) solution?autoclavedry heatgamma raysUV raysdeep freezing
- Q An enzyme that recognizes a specific (palindromic) sequence and cuts within a DNA molecule is called a(n):Orestriction endonucleaseOmodification enzymeOmethylaseOexonuclease
- Q Draw the condensed structural formula for Val-Ala-Leu. (16.1, 16.2, 16.3)Would you expect to find this segment at the center or at the surface of a protein? Why?
- Q Which of the following is NOT a desired characteristic of DNA vectors used in gene cloning procedures?a. self-replicationb. copied using reverse transcriptasec. has a selectable markerd. circular form of DNA...
- Q DNA is wrapped around proteins to form fibers called chromatin.TrueFalse
- Q Which sentencebelow hasincorrectsubject/verbagreement?A. Playing games aresomething that willkeep you entertained.B. Playing games issomething that willkeep you entertained.C. Playing games issomething to do inyour free time.D. Playing games wassomething we didwhen...
- Q The half-life of a reaction of compound A to give compounds D and Eis 35.5 minwhen the initial concentration of A is 0.150 M. How long will it take in...
- Q What is the type of RNA that is involved in transcription?Select one:O Messenger RNA (mRNA).O Ribosomal RNA (rRNA).O Transfer RNA (TRNA)O Transport RNA (tRNA).
- Q Inheritance and Expression of Traits:Question 8What are the building blocks of proteins?Glucose molecules.Nucleotides.Fatty acids.Amino acids.
- Q Hydrophobic molecules precipitateALL OF THESENONE OF THESEaggregatedissolvein water.
- Q Secondary metabolites are organic compounds that are produced outside of the primary metabolic processes that create the materials for structure and growth.Based on this information, which of the following is...
- Q Which of the following is the least important role of proteins in biologicalsystems?O catalystsCsignal moleculesstructural elementsreceptors for signal moleculeslong-term information storage
- Q What ion gradient is used as the energy input for gradient driven pumps in plants and fungi?A. K+B. H+C. Ca+D. None of these. Only animals have gradient driven pumps.
- Q genes are shown below first letter G UUU UUC UUA UUG CUU CUC CUA CUG AUU AUC AUA AUG GUU GUC GUA GUG U leucine phenylalanine leucine isoleucine START Normal...
- Q Friedreich s ataxia is an inherited disorder that is caused by an insertion mutation in a non coding portion of the FXN gene where a GAA triplet is repeated hundreds...
- Q Which is true about genetic disorders A Gene therapy is an area study that could eventually fix the disorders B Genetic disorders are curable C Genetic disorders can never be...
- Q Which of these describes the genetic material of cells produced by mitosis Select all that apply New cells are genetically identical to the original cell New cells have the same...
- Q Figure 15 13 Dinoflagellates Dinoflagellates such as Gonyaulax have cellulose plates cellulose plate flagella Dinoflagellates supergroup Chromalveolata are photosynthetic but they have two flagella one is free but the other...
- Q A retrovirus such as HIV is able to work backwards using to copy its own RNA into DNA in its human host A DNA polymerase III B RNA polymerase I...
- Q is added to start of the unmodified RNA to act as protection preventing information loss A 3 GTP cap B The exon C 5 GTP cap D The poly A...
- Q Which the following is NOT true regarding ribosomes A they are organelles B synthesize proteins C they attach to tRNA D contain highly folded rRNA
- Q A In this DNA fingerprint the crime scene CS DNA matches which suspect most closely 2 B 1 C CS 1 2 3 3
- Q The term semelparity a best describes an organism who only produces offspring twice during their lifetime b best describes an organism who only produces offspring once in their lifetime c...
- Q Identify which of the following cells are myeloid and which are lymphod neutrophils NK cells basophils B cells macrophages T cells A myeloid B lymphoi
- Q genes are controlled before they converted into RNA in a process called In eukaryotes are A recessive control C pre translational B pre transcriptional control D inducible expression
- Q List the 4 stages of neutrophil extravasation at a site of injury when the neutrophil exits the capillary into the tissue Explain what is happening at each stage For the...
- Q esolved D By verifying patient eligibility By verifying prescriber ID NPI or DEA number By contacting the prescriber to change to an alternative medication By changing the quantity dispensed
- Q Match the definition case study with the Personality Disorder in the box A pattern of distrust and suspiciousness such that other s motives are interpreted as malevolent A pattern of...
- Q e A zygote undergoes mitotic cell division to produce all of the other cells in the offspring Explain why DNA replication and mitosis result in little to no genetic variation...
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