Biology question and answers for January 10, 2024
- Q Which of the following are the three types of cytoskeleton found in eukaryotic cells? CthulingtonsMicrotubulesMicrofilamentsMicrotubingtonsIntermediate filamentsNuclear bridges
- Q Which one of the choices is a characteristic shared by integrins and cadherins?Both proteins have a cytoplasmic domain connected to the cytoskeleton.Both facilitate the adhesion of cells to extracellular matrix...
- Q What is not the ultimate goal of energy metabolism in the body?O To breakdown energy-yielding nutrients for ATP production.O To assure adequate glucose for cells.O To stimulate fat storage as...
- Q A student wishes to test the hypothesis that adding antifreeze to water lowers the freezing point ofwater. What would be the dependent variable?Amount of antifreeze added to the waterType of...
- Q Which of the following would be considered a selective pressure on birds?The preferences of the opposite sexTheir predatorsThe temperature of their environmentAll of the above
- Q Which ONE of the following correctly matches the organelle with its function?A. cell wall: produces energy for the cellB. nucleus: control center of the cellC. cell membrane: gives rigid structure...
- Q Which of the following is characteristic of apoptosis? (Mark all the apply. This question is negatively marked so do not guess)a. Cell swellingb. Loss of membrane integrityc. Plasma membrane blebbingd....
- Q Where does the electron transport chain locate? Be very specificIn prokaryotic cells:In eukaryotic cells:Where does the Proton Motive Force form?In prokaryotic cells:In eukaryotic cells:
- Q Evaluate the following statements, and select those that apply to SARS-CoV-2, the enveloped virus responsible for COVID-19.Autoclaves are necessary to destroy SARS-CoV-2 viral particles from objects.SARS-CoV-2 represents one of the...
- Q [Term] is measured by how well the microscope will show two lines lying closetogether as two distinct lines.MagnificationRefractive indexResolving power or resolutionReflective powerWorking distance
- Q 1. Which one of the following appendages CANNOT be used for motility?A. FlagellaB. Axial filamentsC. FimbriaD. PiliE. All these appendages are used for motility
- Q What do mitochondria and chloroplats have in common?O Both exist in plantsO Both contain 70S ribosomesO Both contain circular DNAO Both resemble bacteria in shape and sizeO All of the...
- Q Which one/s of the following statement/s support/s the Endosymbiotic Theory?O Mitochondria and chloroplasts resemble bacteria in shape and sizeMitochondria and chloroplasts have 70S ribosomes similar to the ones found in...
- Q 5. Which of the following statements is part of the Cell Theory?A. Living things are composed of cellsB. Microorganisms are made of cellsC. Maggots come from fly eggsD. Maggots come...
- Q What is the effect of H+ accumulation in the intermembrane space?
- Q Where would you find a sessile organism?drifting on ocean currentsanchored to a rockswimming through the watercrawling on the ground
- Q A student assays a newly purchased enzyme by the standard procedure. He dissolves 50mg of the enzyme in 100 mL water and uses 10mL for the assay. He adds the...
- Q The transport of large substances out of the cell is accomplished by endocytosis.O TrueO False
- Q Plastids that are surrounded by more than two membranes are evidence ofA) fusion of plastids.B) secondary endosymbiosis.C) evolution from mitochondria.D) origin of the plstids from archaea.
- Q Which organelle is unique to plant cells?O Central vacuoleO LysosomeO RibosomeO Mitochondria
- Q Which type of membrane transport involves the diffusion of water?O Active transportO ExocytosisO OsmosisO Endocytosis
- Q Which of the following is not part of the composition of a cell membrane?PhospholipidsCarbohydratesRNAProteins
- Q One key difference between plant and animal cells is that animal cells contain chloroplasts.O TrueO False
- Q How is the nuclear membrane different from the plasma membrane?O The nuclear membrane is completely sealed, whereas the plasma membrane is not.O The nuclear membrane is flexible and fluid, whereas...
- Q Both plant and animal cells contain a cell wall.O TrueO False
- Q Phospholipids spontaneously arrange themselves as a bilayer. Which is true of the structure of alipid bilayer?O Head groups are exposed to the watery medium outside the cellO Head groups are...
- Q All cells require a continuous supply of energy, commonly known as ATP.O TrueO False
- Q What is the function of the cytoskeleton in a cell?O Mechanical supportO Tracks for vesicle movementO AnchorageO All of the above
- Q Chloroplasts produce sugar and carbon dioxide through photosynthesis.TrueFalse
- Q If a plant cell had a damaged central vacuole, it would have difficulty performing what function?Storing waterConverting light energy into sugarConverting sugar into cellular energyAssembling lipids
- Q Consider the following geometric solids.A sphere with a ratio of surface area to volume equal to 0.15 m.A right circular cylinder with a ratio of surface area to volume equal...
- Q Which of the following factors can influence the behavior oftranscription factors when they are expressing a trait?Enzymes that regulate cell division.Signals from other cells.Frequency of protein formation.Temperature of the environment.
- Q Inheritance and Expression of Traits:Question 1What are codons?Select one:The molecules that bring amino acids to the translationlocation.The instructions to stop protein translation.The instructions to start protein translation.Groupings of nucleotides that...
- Q Site where genetic information becomes a protein.nucleusDNAribosomeplasma membranesmooth endoplasmic reticulum
- Q A sort of "intermediate processing center" for proteins.Golgi complexmitochondriaplasma membranenucleus
- Q Endogenous infectious agents arise from microbes that areA. in foodB. the patient's own normal biotaC. on fomitesD. in the airE. transmitted from one person to another
- Q Class I MHC genes code for _____certain secreted complement componentsself receptors recognized by T lymphocytesall HLA antigensreceptors located primarily on macrophages and B cellsAll of the choices are correct.
- Q Which of the following best describes the process of hydrolysis of proteins A B C D The addition of a water molecule forms a covalent bond between amino acids The...
- Q Which of the following are true regarding gene expression in prokaryotes and eukaryotes 1 Eukaryotic DNA cannot be transcribed by prokaryotic RNA polymerase II Posttranscription RNA modifications are not necessary...
- Q yellow reen d lue Bag A B grams C Weight change Gain Hypothesis weight gain loss or unchanged Loss gain unchanged 1055 loss 3 N T O 2 3 4...
- Q lonizing radiation the type of radiation used to perform X rays can damage DNA by break ing weak bonds in the DNA double helix Which of the following best explains...
- Q O Identify the structural classification of the joint formed by the highlighted area I
- Q Which of these best models the sequence of gene expression Otrait DNA protein DNA protein O O O DNA trait protein trait protein DNA trait
- Q Which of the following atoms are found in glucose O Phosphorus nitrogen and carbon O Nitrogen sulfur and oxygen O Carbon hydrogen and oxygen O Sodium potassium and chlorine
- Q If more individuals are born than die in any period of time how will the population change O Increase O Decrease O Migrate O Stay the same
- Q Which factor within the ecosystem is LEAST likely to impact the carrying capacity of White Oak trees is an ecosystem O Availability of water O Number of decomposers Availability of...
- Q Anaerobic respiration occurs primarily in conditions where O excess carbon dioxide has built up O oxygen is abundant O carbon dioxide is not available O oxygen is not available
- Q A biochemist performed the following hydrolysis reaction H S H OHHHHH 9 9 C c C C C H Il HHHHH OHHHHH CCCCC C H H HH OHHHHH CCCCC H...
- Q 11 Explain in your own words how enzyme feedback inhibition benefits a cell
- Q How does the biodiversity of an ecosystem change over time as it progresses through the natural stages of succession biodiversity does not change O biodiversity increases O biodiversity decreases POSSIBLE...
- Q Which of the following does a virus NOT contain A DNA or RNA B nucleic acids C protein D ribosomes
- Q It is widely believed today that viruses came from parts of A fungi C degraded cells B eukaryotes D bacterial pseudopods
- Q Define the following in your own words using plain language Denaturant Denatured protein Protein ladder Membrane Primary antibody Secondary antibody Relative protein abundance Fluorophore
- Q Non enveloped animal viruses are commonly released from the infected cell by does not survive Olysis exocytosis membrane fusion endocytosis a pro 1 pts
- Q Biotechnology includes selecting desired traits such as seen in corn which has been happening since A agriculture began B genomes were mapped C Gregor Mendel s work began D the...
- Q Human tissues OA snake A snake plant O In a protist colony
- Q Molecular Genetics 1 Draw a nucleotide and label the three parts Draw a segment of a DNA strand and show the pairin Sob nizq9q 290b 16dW TE Sob 92slym6 290b...
- Q 1 reduces the heating of tissue when it is irradiated with waves of the radio frequency range 2 increases the heating of tissue when it is irradiated with waves of...
- Q A The molecule to the right with the unique cloverleaf shape is called mRNA B tRNA C rRNA
- Q Which of the following scenarios would you NOT contact a patient A medication is out of stock There is a Third Party issue The prescriber has denied refills A controlled...
- Q Explain what PAMPS are Second are they involved with the innate or adaptive immune response For the toolbar press ALT F10 PC or ALT FN F10 Mac
- Q Which of the following does not participate in the formation of the immune receptor such as Abs and ligand complex Ohydrophobic bonds covalent bonds O electrostatic forces hydrogen bonds
- Q What is the function of the membrane attack complex MAC for the toolbar press ALT F10 PC or ALT FN F10 Mac
- Q Question 16 of 25 Insulin is a hormone that carries signals in the body Actin is a protein that is found in muscles Which sentence describes these proteins OA They...
- Q Which statement describes RNA OA It is built using DNA as a template and is translated to form amino acid chains that fold into proteins OB It is used as...
- Q Question 4 of 25 Which type of biomolecule is shown in the model HICIR 910 1 HR O H O R HIN HO H N C C N C C...
- Q Which enzyme s primary purpose is to break down starch into its component sugars O trypsin O pepsin O lipase O catalase O amylase
- Q Catabolic Energy OOOO O O O Anabolic pathways are where small molecules being assembled into large ones Energy is required Catabolic pathways are where large molecules are broken down into...
- Q Which of the following are found only in plant cells O gap junctions O desmosomes O plasmodesmata
- Q Which category would does the amino acid aspartate belong to 4 O Non polar aliphatic R group aromatic R groups O Polar uncharged R group O Polar and negatively charged...
- Q Which category would does the amino acid proline belong to O Non polar aliphatic R group aromatic R groups O Polar uncharged R group h O Polar and negatively charged...
- Q Label each of the following systems as high or low entropy i the instant that a perfume bottle is sprayed compared with 30 seconds later ii an old 1950s car...
- Q How does the sodium potassium pump make the interior of the cell negatively charged O by expelling anions O by pulling in anions 4 O by expelling more cations than...
- Q Which of the following statements is true O Acids and bases cannot mix together Acids and bases will neutralize each other h O Acids but not bases can change the...
- Q Which of the following statements is not true O Water is polar s Water stabilizes temperature Water is essential for life Water is the most abundant molecule in the Earth...
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