Biology question and answers for January 12, 2024
- Q Choose the four (4) features that plant cells have that animal cells do not.NucleusCell WallPlasmodesmataFlagellaChloroplastsLysosomesMitochondriaCentrosomesCentral Vacuole
- Q Which of the following is TRUE about cell membranes?Proteins increase the mechanical strength of the cell membranePhospholipids make up the cell membraneCholesterol acts as floating doors, enabling substances in and...
- Q Structure fits function is a common phrase used in biology. Describe how the structure of the plant cell fits its function. Include a discussion of the cell wall and large...
- Q What is the proper description of the structure of a cell membrane? It is a bilayer of phospholipids that has proteins and cholesterols sprinkled throughout it.It is a double layer...
- Q Archaea were given their own separate domain because they areconsidered a type of bacteriamost closely related to eukaryotesmulticellularnucleatednot prokaryotic
- Q To visualize the structure of DNA, which has a width of 10 nm, which microscope would be best?fluorescence microscopelight microscopestaining microscopepolarized microscopeelectron microscope
- Q The organelle that pinches off portions of its membrane to form a vesicle used for storage or transport is themitochondrionchloroplastnucleusGolgi bodyribosome
- Q According to cell theory,all organisms are multicellularall cells come from preexisting cellsDNA is the structural and functional unit of lifeall cells are approximately the same sizeproteins are the genetic material...
- Q The skin is the body's largest organ. It's made up of many different types of cells. Oils, produced by the sebaceous glands, prevent the skin from drying and splitting. The...
- Q 18. A certain type of specialized cell contains an unusually large amount of rough endoplasmic reticulum(ER).Which of the following functions is this cell type most likely specialized to perform?a. The...
- Q What is the most likely pathway taken by a newly synthesized protein that will be secreted by a cell?a. Golgi ? Er- Lysosomeb. Nucleus ER- Golgic. ER ? Golgi ?...
- Q 25. Hereditary spherocytosis (HS) is a disorder of red blood cells that causes the cells to be smaller and spherical instead of having the usual flattened, biconcave shape. The average...
- Q The major difference between a cell that responds to a signal and one that does not is the presence of aDNA sequence that binds to the signal.nearby blood vessel.receptor.second messenger.transduction...
- Q Which of the following best describes an advantage that eukaryotic organisms have over prokaryotic organisms?a. Prokaryotes lack a cell membrane and therefore are unable to control what enters or exits...
- Q Drag and drop the terms to complete the sentences describing the endosymbiont theory.The _______ is the theory that ________ and chloroplasts arose as a result of _________ establishing a ________...
- Q Match the term on the left to its correct definition on the right.Numerical apertureRefractionLensDispersion Resolving powerA medium with a curved surface that refracts and focuses light to produce an imageThe...
- Q Fill in the blanks, using the choices provided, to correctly identify the contributions to the Cell Theory.In the late 1600s, ________ a Dutch tailor who crafted lenses, used his primitive...
- Q Plant and animal cells are both eukaryotic, and thus they are similar in many ways. However, plant cells have some structures that are not present in animal cells. Which of...
- Q Move the options to the correct category of microscope.LIGHT MICROSCOPEELECTRON MICROSCOPECommonly used in the undergraduate college laboratory Uses a beam of electrons instead of a beam of light.Significantly more bulky...
- Q Monosaccharides and disaccharides are stored in cells in longer chains called polysaccharides, possibly due to the dangers of high levels of sugars or to allow the cells to pull in...
- Q Which statement about the mRNA start codon is INCORRECT?The start codon defines the reading frame.In prokaryotes, thestart codon is only a few nucleotides from the ribosomal binding site.The start codon...
- Q Cell Theory includes that (select all that apply)cells come only from preexisting cellscells must maintain homeostasisall organisms are composed of cellsall cells have at least one nucleus
- Q A cell is placed into solution A and shrinks. Solution A is a solution.A cell is placed into solution B and swells. Solution B is a solution.
- Q Which of the following products is generated in the highest quantity during the citric acid cycle?ATPNADHCO?FADH?
- Q Match the staining technique to the appropriate example.1. Methylene blue [(Click to select)2 Gram stain (Click to select)3. Endospore stain (Click to select)4. Flagellar stain [(Click to select)
- Q Select the one true statement.Mitochondria break down sugar to release energy that an animal cell can use.Chromosomes store nutrients, water, and waste in an animal cell.A plant cell can have...
- Q Which way would the water move in the following?a. cucumber slice (72% water, 28% solutes) in salt water (63% water, 37% solutes)______b. salt (0% water, 100% solutes) poured on a...
- Q The fluid mosaic model of S.J. Singer and G.L. Nicolson (1972) is widely upheld to explainmembrane structure. Draw a diagram in the box showing the components of this model ofbiological...
- Q A chemical has been found to harm the same components in both prokaryotic and eukaryotic cells. Which components are those?DNA, cell membrane, cytoplasm, and ribosomesDNA, cell membrane, ribosomes, and membrane-bound...
- Q Match the following statement with one of the stages of mitosis:The nucleus and the nucleolus are clearly visible inside the cell. The chromosomes are not visible.a. Interphaseb. Prophasec. Metaphased. Anaphasee....
- Q Dialysis tubing is often used to model a cell because it is permeable to water molecules but impermeable to solutes such as sucrose and starch. During this experiment, 3 dialysis...
- Q Why is context important when studying fossils?it can tell us what other objects were foundit can tell us how old it isit can tell us when a fossil was discoveredit...
- Q Match the nuclear component to its description.Chromosomes ____ Double membrane with poresNuclear envelope_____ Dense granular mass made of RNA, which is the site of ribosomal RNA synthesis and ribosomal subunit...
- Q During an investigation of a freshwater lake, an AP Biology student discovers a previously unknown microscopic organism. Further study shows that the unicellular organism is eukaryotic. (a) Identify FOUR organelles...
- Q These cells can divide several times, but are not capable of unlimited self-renewal. They mayproduce daughter cells with more than one potential fate.Proliferating precursor cellsTerminally differentiated cellsTissue stem cells
- Q In what order do these events occur during M phase?A) The nuclear envelopes finish reforming around the two sets of separated chromosomB) The location of the contractile ring is determined...
- Q During normal healthy development, some cell divisions are asymmetric. Which statement aboutasymmetrically dividing cells is incorrect?An actin/myosin II contractile ring divides the cells by cytokinesis.The cytoplasm is split unequally between...
- Q Receptor-mediated endocytosis required the presence ofSpecialized receptor proteins on the membrane's outer surfaceActive transport pumpsProtein channels to mediate the activity of the receptorsCarrier protein that move molecules across the membrane...
- Q Lightly stained regions of chromatin and darkly stained regions of chromatin are respectively known as:(A) Heterochromatin and euchromatin(B) Euchromatin and heterochromatinC)Haploid and diploidD) Eukaryotic and prokaryoticE Chromosome and nucleus
- Q The requirement of ___makes an organism's cell make-up different from the cell make-up of an inanimate object.energyInterdependencelight
- Q Bone and blood cells are consideredspecialized cellstissuesorgansprokaryotic
- Q The field of vision of this microscope is brightly illuminated and used for most microscopic work.bright-field microscopeelectron microscopeslide microscopeorganismal microscope
- Q Which statement below is correct when comparing plant and animal cells?Plant cells only have a cell wall, and animal cells only have a plasma membrane.Plant cells only have a plasma...
- Q Just based on the description above, diagram an experiment that would show how the cobra venom / receptor interaction is happening. You need to use a specific patch clamp technique....
- Q Which of the following is FALSE about the quadrant streak method?a) It enables us to obtain pure cultures.b) It can be performed in liquid broth.c) It is a dilution method.d)...
- Q Most of the active functions of plasma membranes are carried out bycholesterolproteinshydrophilic headshydrophobic tailscarbohydrates
- Q 3. Explain how in clinical trials, small interfering RNA (siRNA) is being tested as a potential therapeutic for Huntington disease. Include the goal of such therapy and any negatives to...
- Q How does cell volume affect nutrient exchange between the cell and its external environment?Very large cells are the best adapted for nutrient exchange.Very small cells are the best adapted for...
- Q Why do chromosomes coil during mitosis?to allow the chromosomes to fit within the nuclear envelopeto allow the chromosomes to move without becoming entangled and breakingto provide for the structure of...
- Q Because most receptors are membrane proteins, which of the following is usually true?They are only attached to one membrane surface: exterior or interior.They change their conformation after binding with signal...
- Q Helps determine the structure of molecules and their types of interactions1.Can form weak interactions with so many different types of polar organic molecules like amino acids and sugars2. Can hydrogen...
- Q If a plasma solution being administered to a trauma victim were hypertonic, red blood cells would _remain unchangedlysecrenate
- Q Janey is not able to break down long chain fatty acids because of her defective ___peroxisomes nuclei cytoskeleton ribosomes Golgi apparati
- Q Jim was born with Tay-Sachs disease. Which of the following organelles is affected if the condition is caused by the inability to break down toxic substances?centrioleslysosomesmitochondriathe Golgi apparatus
- Q A cell's hormonal sensitivities are determined by the(A) Chemical nature of the hormone(B) Quantity of circulating hormone(C) Shape of hormone molecules(D) Presence or absence of appropriate receptors(E) Thickness of cell...
- Q Select the correct answer from each drop-down menu.Compared to its surroundings, the concentration of solutes is low inside a cell. So, the cell is in asolute in this cell uses...
- Q Proteins on the surface of vesicles determine where the vesicles go. Which cell organelle provides the Instructions for these proteins?A endoplasmic reticulumB. lysosomeC mitochondriaD. nucleus
- Q Why is the cell theory considered a scientific theory?It has always been proven to be correct.It was proposed by several scientists.It is an explanation that is well supported.It was formed...
- Q (1 points) Draw the arrangement of a phospholipid bi-layer. Label the phosphate end as well asthe fatty acid chains. Label polar and nonpolar areas. Label the hydrophilic as well ashydrophobic...
- Q All of the following are true about insulin EXCEPTdecreases the plasma glucose concentrationIt binds to receptors in the cytoplasm of its target cellsstimulates glycogen formation in liver and muscle celsIt...
- Q 23. Which unstained cellular organelles can be seen with acompound light microscope that has a total magnificationof 400x?(1) cell membrane, ribosomes, vacuole(2) cell wall, vacuole, chloroplast(3) nucleolus, chloroplast, ribosomes(4) mitochondria,...
- Q Studies of fat cells and thyroid cells show that fat cells havefewer mitochondria than thyroid cells. A biologist wouldmost likely infer that fat tissue(1) does not require energy(2) has energy...
- Q 17. After a cell was treated with a certain chemical, theribosomes stopped functioning. Which cell activity wasimmediately affected by this change in ribosome function?(1) intracellular transport(2) protein synthesis(3) aerobic respiration(4)...
- Q 8. Click on "Return to Cell Diagram." Click on "Rough EndoplasmicReticulum." Why does the rough ER appear pebbled?a.9. Click on "Return to Cell Diagram." Click on "Ribosomes." Ribosomesare the site...
- Q Henrietta's cells were used to develop thevaccine for polio and many other diseases.They are [?] today.Ahard tofindBstillin useCno longerin use
- Q Henrietta's cells were used to develop thevaccine for [?] and many other diseases.They are[ ] today.ApolioBAIDSCmalaria
- Q AAn "organism" with sixgenome would be in agametes contained threediploidchromosomes in itsstate if one of itschromosomes.BmutatedChaploid
- Q The "powerhouses" of thecell are [?] called [ ].A. eukaryotesB. organellesC. cristaeD. prokaryotes
- Q A tenant ofcell pinchedincorporatedprimitive cell, whichthen functioned as anorganelle.is that aoff anda moreA. spontaneous formationB. cell fragmentationC. endosymbiotic theoryD. exosymbiotic theory
- Q The region wherewater is "not allowed"around the fatty acidtails is calledA. polar.B. hydroponic.C. hydrophillic.D. hydrophobic.
- Q A(n) _ is fatal to acell when it becomestoo large.A. low surface area-to-volumeratioB. high surface area-to-volume ratioC. energy dependentdiffusion processD. abundance ofmitochondria
- Q 6CO? + 6H?O ? C6H12O6 + 602Which molecule(s) in the reaction above is/are processed in the mitochondria?A. O2 onlyB. C6H12O6and 02C. C6H12O6and CO2
- Q What difference in the attitudetoward death do you findbetween Brueghel's painting andBenetton's sculpture?A. Brueghel focuses on Icarus' death; Benettonfocuses on the nereids who care for Icarus.B. Brueghel emphasizes Icarus' death;Benetton...
- Q Which sentenceuses a semicoloncorrectly?(Remember, asemicolon joins twocompletesentences.)A. She didn't know if itwould be better for him todie;she couldn't handle himmarried to the lady.B. The daughter of the kingwas very sad;...
- Q 6CO2 + 6H?O ? C6H12O6 +602The equation above indicates that inaddition to six glucose molecules,photosynthesis produces six_____ molecules.A CO?B O2C H?O
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