Biology question and answers for June 23, 2024
- Q Each of the following statements about action potentials is true except O action potentials end with a transient hyperpolarization action potentials change their magnitude from one stimulus to another the...
- Q The vesicles that are anchored to the plasma membrane at a nerve cell presynaptic site are specialized for lysosome secretion polarized secretion constitutive secretion endocytosis
- Q end because it has a higher Tubulin addition happens preferentially at the affinity for tubulin heterodimers GTP hydrolysis acts as a molecular switch to microtubule affinity for addition of heterodimers...
- Q glia the myelin sheath nodes of Ranvier synaptic boutons minate at structures called Question 41 1 point 1 Listen Each of the following is true about Ras except O Ras...
- Q IP3 receptors are associated with O endosome membranes O Golgi apparatus membranes O ER membranes Ja
- Q The technique that can be used to record ion currents passing through individual channels is known as ligand gating voltage gating patch clamping optogenetics
- Q Which of the following organelles produces and modifies polysaccharides that will be secreted by a eukaryotic cell Olysosome mitochondrion Operoxisome Golgi apparatus
- Q An example of a generally inhibitory neurotransmitter is GABA O glutamate O acetylcholine
- Q tes O protein kinase C O protein kinase A O MAPK O protein kinase B
- Q Kinase enzymes always inhibit target molecule activity add phosphate groups O bind tightly by wrapping around a target molecule to regulate its activity remove phosphate groups
- Q The enzyme involved in the breakdown of glycogen in the liver smooth ER is Ophosphodiesterase glucose 6 phosphatase O catalase phospholipase C
- Q is a drug that blocks cell division by stabilizing microtubules as a result it is used in the treatment of Vincristine listeriosis Taxol breast cancer O Nocodazole athlete s foot
- Q Each of the following is a type of glial cells except Platelets oligodendrocytes astrocytes von
- Q Each of the following is an intracellular messenger except IP3 calcium ions O CAMP acetylcholine
- Q The phase at the end of an action potential when the membrane potential becomes more negative than it is at rest is the phase depolarizing Orepolarizing
- Q Generation of an action potential by a neuron may ultimately stimulate another nerve cell skeletal muscle cells gland cells All of the above may be stimulated by a signal
- Q Calcium is stored in the cell in the O lysosome O mitochondria O endoplasmic reticulum Golgi apparatus
- Q The low level of cytosolic calcium ions in unactivated cells is established by which of the following Phosphatases Kinases Calcium ATPases Calmodulin
- Q Compounds that inhibit receptors by preventing the natural messenger from binding are known as growth factors antagonists agonists arrestins
- Q The parts of the graph indicated between points C and E represent Membrane potential 40mV 40mV 60mV Stimulus hyperpolarization depolarization repolarization sodium channel activity B 0 for 1 2 Time...
- Q Plasma membrane permeability of which of the following ions is most important in generating the resting membrane potential Chloride ions Calcium ions Potassium ions Ammonium lons
- Q Drug detoxification by hydroxylation transiently increases intracellular Ca activities a second messenger leads to phagosome formation increases solubility of drugs enhancing their excretion
- Q The variant of Apolipoprotein E ApoE associated with increased risk of Alzheimer s disease is O ApoE1 O ApoE2 O ApoE3 ApoE4
- Q recycling of receptors mRNA export from the nucleus uptake of completed polypeptides with special targeting signals into the organelle bringing nutrients into the cell
- Q A researcher extracts the cytosol and cytoskeletal components from the cell and places the mixture into a tube What result do you expect if the researcher adds a nonhydrolyzable GTP...
- Q Memantine a drug used in management of Alzheimer s disease is antioxidant a cholinesterase Inhibitor an NMDA antagonist Serotonin reuptake inhibitor
- Q Stormy husky brawling City of the Big Shoulders They tell me you are wicked and I believe them for I have seen your painted women under the gas lamps luring...
- Q 2 Write the CODON that corresponds with each amino acid There may be more than one The full names are written but the codon chart only shows the first three...
- Q step in this process is called TRANSCRIPTION where a coding region of DNA is converted to messenger RNA mRNA During transcription mRNA is made from the DNA sequence following the...
- Q What is the average radius of a piece of double stranded DNA in water that has a link length of 5 8 nm and and is 2237945 links long Submit...
- Q Source Pinterest com What is the name of a gram positive coccus that does not utilize glucose and does not reduce nitrate What is the name of a gram negative...
- Q Below is a generalized cast of Australopithecus afarensis cranium as there are many specimens Mark all that apply below My What large molars you have but not as large as...
- Q Here is our probable hominin Ardipithecus ramidus cranium from Ethiopia The cranium itself it not particularly large maybe about 6 7 inches front to back Ardipithecus ramidus 2501 1rp96 1...
- Q A hominin is an ancient ape hominoid that we believe to be specifically on our lineage and not another ape s lineage our ancestor and ours alone What traits do...
- Q The earliest apes hominoids appear in Africa in the early Miocene By the middle and late Miocene some have mark all that apply Omigrated into Europe Omigrated into Asia developed...
- Q Life History Theory posits that the timing and duration of the stages and phases of life are ADAPTATIONS and thus shaped by Mark all that apply O evolution chimpanzees genetic...
- Q The Obstetric Dilemma and the EGG Hypothesis both seek to explain O food sharing in communities O endurance or long distance running O the maternal constraints on the duration of...
- Q What two gases are exchanged between the respiratory system and t circulatory system O carbon dioxide and hydrogen Ooxygen and carbon dioxide Ohydrogen and nitrogen
- Q According to this information some organs of the gastrointestinal tra Food is digested in the gastrointestinal tract to provide nutrients to the body In addition various hormones secreted from the...
- Q 5 Mendel s Laws 5 3 Define Mendel s two laws How do we use probability rules to predict the results of genetic crosses 6 Pedigrees 5 3 Diagram simple...
- Q ons must be lost or gained by each of the following atoms to attain a noble gas electron configuration Be sure to indicate whether they are lost or gained a...
- Q 1 What are valence electrons Why are they so important in chemistry 2 Write the electron dot structures for the following elements a Cl b S c Al d K...
- Q oths have even appeared to orbit around them the streetiamps come on a lang row of them glowing uselessly along the ring of garden chat circles the city center where...
- Q 3 What is the role of the embedded proteins and how do they complete their job Hint they have 6 jobs at least 4 Identify what is the Fluid Mosaic...
- Q One of the following statements is true about oxidation of alcohols O A primary alcohol is always converted to aldehydes O A primary alcohol is always converted to carboxylic acids...
- Q 7 Describe the boundaries or barriers cell walls create 8 How are cell walls created what does their structure consist of
- Q Source www britannica com O Abnormal condition of red blood cells Presence of bacteria in the blood O Destruction of red blood cells
- Q What is the amount of toxin required to kill half the amount of the infected animals Response Percent 100 50 0 22 5 mg kg Source www chemsafetypro com B...
- Q The following is a Case Report on Meningococcal meningitis B Hong Kong Journal of Emergency Medicine A 21 year old man presented to our A E Department with fever for...
- Q Observe the following diagram Which of the following pathogenic agents falls under this category 2 Broad spectrum antibiotics kill nonresistant cells 1 Normal microbiota keeps opportunistic pathogens in check pathogen...
- Q Case study Patient X who is immunocompromised shows symptoms of myocarditis chest pain shortness of breath headaches fever fatigue swollen feet If the doctor suspects a bacterial infection what is...
- Q ERY PEN OXA TECO OXA wat dit VAN ESPANNE SPT VAN Source KBTyoutube Phenol coefficients M PEN 31 ERY TEC VAN OXA O Microbial contamination in a disinfectant solution O...
- Q The following chemical disinfectants can be used as food preservatives Mark all that apply Formaldehyde and ethylene oxide Acids sorbic benzoic propionic sulfure dioxide nitrites Nisin Natamycin Quaternary ammonium salts
- Q On the topic of microbial growth control match the terms in the two columns BSL 4 BSL 1 Antiseptics Disinfectants Choose Choose Dangerous microbes posing aerosol transmitted infections Process of...
- Q A Construct explan Explain what is meant by turning on and turning off genes within a cell during cell differentiation 1 DREVEA 2 Describe the process of one type of...
- Q Question Which of the following is true of enzymes Next Enzymes increase the rate of chemical reactions by lowering the activation energy Enzymes can only be used once in any...
- Q Fragile X is a triplet repeat disease True O False
- Q Translocation is the process where the t RNA in the A site moves into the P site O True O False
- Q During DNA synthesis the enzyme that continuously synthesizes the DNA is Primase O DNA Polymerase 1 ODNA Polymerase 3 DNALigase
- Q Provide the abbreviation of the following nucleotide 01 07 OH OH MP NH d AG C TU DR TR NH
- Q Instructions Watch the video The Crisis of Credit Visualized from this link https www youtube com watch v bx LWm6 6tA and explain what caused the 2007 8 Great Financial...
- Q https www youtube com watch v bx LWm6 6tA and explain what caused the 2007 8 Great Financial Crisis Also read the article The Global Financial Crisis in the AS...
- Q at is the MIC shown by this Etest for antibiotic susceptibility E VA 256 192 128 96 64 48 16 12
- Q When the antibiotic against a preexisting infection kills normal microbiota yielding proliferation of antibiotic resistant new pathogens When the normal microbiota keeps new pathogens under control When the antibiotic resistant...
- Q What is the D Value or DRT in this Microbial Death Curve log10 of number of live bacterial cells 99876 HO 10 1 0 Microbial Death Curve 0 5 10...
- Q It inhibits cell wall synthesis OIt creates thymine dimers O It reduces the pH of the cytoplasm O It causes oxidation of nucleic acids Question 7 0 5 pt What...
- Q Source BiologyLibreText B Pathogenicity values O Antibiotic diffusion rates Turbidity of bacterial lawns
- Q Bacterial cultures and medical devices that are transported need to be frozen choose the correct temperature from the list O 70 degrees Celsius or lower O0 degrees Celsius O 7...
- Q What is the difference between sonication and lyophilization Choose all that apply Sonication uses ultrasonic waves to cause cell cavitation Lyophilization inhibits bacterial metabolism by rapid freezing under vacuum Sonication...
- Q Connect the two columns Fungistatic Bactericide Viricide Bacteriostatic Question 3 Choose Choose Inhibits fungal growth Inhibits growth of all living microbes Kills all living microbes Inhibits bacterial growth Kills bacteria...
- Q Helminths can evade the host s immune system by doing which of the following O Their larger size prevent the immune system to work properly Worms have a tougher cuticle...
- Q Which of the following terms is correct for COVID 19 Epidemic disease Pandemic disease Endemic disease Notifiable disease
- Q The following is a picture of a black legged tick The bacterium Borrelia burgdorferi can be transmitted to humans through the arachnid s bite and cause Lyme disease What type...
- Q View Available Hint s U G C A 3 5 DNA coding information strand G1 U DNA template strand G1 G1 Synthesis of mRNA G2 G2 T Transcription bubble G2...
- Q Can you make two question about neurons and cell signaling and answer it in ur own wrd un 2 paragraph T
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