e. thymic development. Answered: Which of the following statements | bartleby . 13-60 Herpes simplex virus favors neurons for latency because of the low level of _____, which reduces the likelihood of killing by CD8 T cells. b - Shows a linear relationship from zero exposure to the highest dose suggesting that exposure to such toxic agents, no matter how small, carries some risks b) Negative-sense single-stranded RNA viruses a. 13-34 Which of the following explains why Streptococcus pneumoniae can infect an individual recurrently? This is because the solution on the left side of the figure is hypertonic while the solution on the right side of the figure is hypotonic. d. lysosomes, The leaves of a plant typically have different tissue layers that function in different ways. 13-8 _____ is a strategy used by herpesviruses where replication and the generation of virus-derived peptides are avoided in order to hide from the immune response. Exposure to radiation during an x-ray for a broken foot - Acute exposure Examine the figure below. - People tolerate high risks in activities of their choosing, as they often have an exaggerated view of their abilities to control fate. a) Vertical transmission is transmission of a virus from a parent plant to its progeny, and horizontal transmission is one plant spreading the virus to another plant. Biology Semester 1 Review | Biology Quiz - Quizizz d. a eukaryotic cell with a nucleus. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. b. Haemophilus influenzae e) envelope, It turns out that your evil roommate has a herpesvirus-mediated genital sore. c. converts sunlight into chemical energy. c. the IFN- receptor Solved Which of the following statements accurately | Chegg.com Viruses are acellular, obligative parasites that contain a protein coat . PDF Name: Date: Block: Bacteria & Virus Unit Review - lcps.org For some toxic substances, a millionth of a gram (an amount invisible to the naked eye) can be lethal. The project is the solution towards mitigating scams and rugpulls. The nuclear envelope consists of two concentric phospholipid bilayers while the plasma membrane is only one phospholipid bilayer. 4. Bacteria are much larger than viruses, and t View the full answer Transcribed image text: c. eukaryotic and plant b. hemagglutinin B.) It is rising in both developing and developed countries. b. c. inhibition of MHC class I expression c. diffusion proteins The color change indicates that the iodine molecules were small enough to diffuse across the membrane and react with the starch inside the cell. d. They cause excessive synthesis and release of cytokines. Allergens are substances that affect us by ______. A metal such as lead that is stable, resistant to degradation, and can impair children's health long after exposure and far from where it might have first been used is of concern because of its _______. b. bacteria are living and viruses are non -living . The WBC's job is to take the bacteria inside of itself and destroy the bacteria. The following regions were not resolved in the cryo-EM map and so were omitted from the atomic model: residues 146 to 160 corresponding to the GS linker in the FMC63 scFv and residues 21 to 22, 40 to 46, 133 to 152, and 175 to 184 corresponding to flexible loops in CD19. A protein molecule, transferrin, embedded in the plasma membrane recognizes iron molecules and causes the plasma membrane to fold in around the iron and take it into the cell. a. leukocyte adhesion deficiency Virus Infections and Hosts - Introductory Biology: Evolutionary and About Us: If your goal is to build a career that makes a difference, consider joining the dedicated people of the Colorado Department of Human Services(CDHS). Toxins - Lead Exhaling excess carbon dioxide - Lungs a) Fasting blood glucose from 120-180 mg/dL b) Fasting blood glucose from 126-140 mg/dL c) Fasting blood glucose from 110-125 mg/dL d) All of the above 7) All of the following drugs are oral hypoglycemic drugs, Except a) Metformin b) Sulphonylureas c) Thiazolidinediones The radish cells were hypertonic to the water in which they were soaking. Name several indicators that scientists use to evaluate the effects of climate change. Ch. 21 Review Questions - Biology for AP Courses | OpenStax No color change in the beaker tells us that the starch was too large to cross the membrane from the cell and into the beaker. They are only capable of reproducing once inside a living host cell Viruses are living cells that are lacking the necessary structures to carry out cellular functions. Please describe the competing . On a biological level, the main difference is that bacteria are free-living cells that can live inside or outside a body, while viruses are a non-living collection of molecules that need a host to survive. d) II. UPSC Prelims and Mains Exam - 2nd March 2023 - IASbaba PFCs are persistent chemicals, so they are ______. a. Virus b. Biomagnification, in the case of a fish-eating osprey, refers to the fact that the ______. Most substances are toxic at some level of exposure depending on the substance and the nature of the exposure. e. The capsular polysaccharide antigens of S. pneumoniae do not induce immunological memory. b. exocytosis. One important way to control the spread of viruses is through a. the use of vaccines. d. properdin (factor P) Hazardous substances - These substances are dangerous because they are flammable, explosive, acidic, caustic, irritants, or sensitizers. a. hemagglutinin and neuraminidase e. inhibition of ICAM-1 expression. d. They are obligate intracellular parasites. - when risks are known and we feel in control of the outcome. They cause T cells to divide and differentiate into effector T cells. d. extracellular spaces; coating itself with human proteins answer choices Viruses are much smaller than bacteria cells. Reduce the amount of salt and animal fat in your diet - Reduced cardiovascular disease b) removal of viral mRNAs True or false: Ecological diseases refer to infectious diseases that strictly affect wildlife or cause damage to habitats. This is because, unlike toxic substances, hazardous materials ______. c. variable surface glycoproteins Find the general solution of the given system. POPs, or ______________ _____________ ______________, are dangerous because they don't degrade quickly and cells readily take them up. d. MHC class I e. Mycobacterium tuberculosis. a. they are recycled by endocytosis more quickly than the normal receptor A. e. B cells; EBNA-1. b. T cells; CD4 B) Most of the prophage genes are activated by the product of a particular prophage gene. Which of the following statements correctly identify reasons why the debate currently surrounds regulating endocrine disrupters? d. Typically just a piece of genetic material encased in proteins, viruses are small, non-cellular infectious agents that are only capable of reproducing when inside a living cell such as those of plants, animals, fungi, protozoans, or bacteria. 13-42 Epstein-Barr virus infects and establishes latency in _____, gaining entry by binding to _____. They are repelled by the hydrophilic heads of the phospholipids that form the phospholipid bilayer. 13-29 Severe combined immune deficiency (SCID) describes a condition in which neither _____ nor _____ are functional. 13-5 All of the following are associated with the ability of influenza virus to escape from immunity except _____. Ospreys eat larger fish. They capture energy from sunlight. .Know, understand, incorporate, and demonstrate the Mission, Vision, Values and Guiding Behaviors of Trinity Health and LIFE at St. Joseph of the Pines in behaviors, practices, and decisions. Which of the following statements correctly describes how factors related to the individual influence how she or he responds to toxins in the environment? b. b. Which of the following factors do policymakers consider most important in setting an effective environmental health policy? d. neurons; MHC class I d. HIV is transferred from an infected person to an uninfected recipient BIO182 Chapter 19 MasteringBiology Homework, David N. Shier, Jackie L. Butler, Ricki Lewis, John David Jackson, Patricia Meglich, Robert Mathis, Sean Valentine. The envelope helps protect viruses exposed to heat and/or detergents. Endocrine disruptors like BHA in facial moisturizers - Absorption (dermal) c) II c. X-linked hyper IgM syndrome: gamma globulin injections What general cell type are you most likely observing? c. Proviruses are flanked by repetitive sequences called long terminal repeats (LTRs). This virus attacks the white blood cells (immune cells) of the human body. c. nucleic acids. Rank the order of the following causes of death, putting the lowest risk of death for a person in the United States on bottom and the highest risk of death at the top. d. The RBCs were hypertonic to the saline; this resulted in water osmosing through the RBC plasma membrane mostly into the cells. - The mere presence of a toxin is insignificant without considering how much is there, where it is located, how accessible it is, and who is exposed. Which statement accurately describes capitalism? b. polysaccharides, large protein molecules, low-density lipoprotein particles 13-56 Bare lymphocyte syndrome leading to a lack of HLA class II molecule expression is due to a defect in _____. A healthy individual may be insensitive to doses of toxins dangerous to someone who is ill. They affect wildlife populations, such as bats and frogs. In which leaf tissues would you expect to find the highest density of chloroplasts? question 2 5 out of 5 points which statement accurately describes capitalism? c) membrane How can a single sheet of Polaroid film be used to show that the sky is partially polarized? d. the plasma membrane, Using the compound light microscope in the lab room, you observe a wet mount slide preparation. This problem has been solved! a) co-infection with an unrelated virus that causes the same symptoms Which of the following statements accurately explains why tissue repair mechanisms may make those tissues more susceptible to cancer? Sensors | Free Full-Text | Multilayer Model in Soil Moisture Content - Most people will tolerate a higher probability of occurrence of an event if the harm caused by that event is low. Which of the following statements accurately describes how viruses reproduce? b. The 2014 epidemic of ______ in western Africa infected approximately 20,000 people and killed 8,000. Multiple Choice Question on Diabetes Mellitus: Pathogenesis, Diagnosis Adopting the precautionary principle in regulating environmental toxins ______. I. B. Though categorizing toxins based on potency is useful, it is complicated by differences in individual and species reactions to particular chemicals. A long piece of ribbon wired along both long edges is twisted into a helix and wrapped around individual pipe cleaners that have been rolled into spools; this grouping is then twisted (super coiled) again to condense it. Why do scientists repeat their experiments over and over again? b. the virus escapes from the phagosome into the cytosol A white blood cell (WBC) encounters bacteria in a scrape on the knee of a child who has fallen off of his bicycle. Increased frequency:increased depth of penetration B. a. CD18; produce cell adhesion molecules the proteasome cannot generate viral peptides for presentation by MHC class I molecules. c. Haemophilus influenzae The science involved in determining whether endocrine disrupters are harmful shows how establishing public policy is difficult. 13-80 Reverse transcriptase is a _____ encoded by _____. 13-50 Which of the following deficiency syndromes affects T-cell but not B-cell function? Question 33. This cell is weighed and then placed in a beaker of 3 percent iodine dissolved in water. Ebola hemorrhage fever is caused by a ______, and was the source of an epidemic in western Africa in 2014. 51BidLive-[A collection of three American sterling silver vases and a - HIV is more lethal. c) Cutting and assembling the capsid would be halted. b. produces the energy needed to run chemical reactions in the cell. Detoxification - Liver What is the determined cause of colony collapse disorder? stable chemicals are resistant to degradation and can cause problems long after application and far from the sites where they were originally used. A) After infection, the viral genes immediately turn the host cell into a lambda-producing factory, and the host cell then lyses. 13-3 A primary immune response against influenza virus produces antibodies that bind to _____. d. Women are more likely than men to inherit X-linked immunodeficiencies. The nuclear envelope consists of two concentric phospholipid bilayers while the plasma membrane is only one phospholipid bilayer. The dose-response curve shown here describes which of these ideas? b. Antigenic shift; antigenic drift The students placed an X for each structure that was viewed for each cell on the table shown. Which of the following statements accurately describes the - Weegy c. cellular transcription favors the production of HIV-encoded RNA b. antigenic shift 13-10 Which of the following is not associated with the reactivation of herpesviruses? c. RNA-dependent DNA polymerase; HIV B. Which of the following processes can be effective in preventing the onset of viral infection in humans? b. diffusion. A virus is living because it has DNA that stores genetic information. a. a plasma membrane, where the pipe cleaners represent the phospholipid bilayer and the ribbon represents proteins embedded in the membrane. Capitalism is an economic system that operates under the. Check all that apply. NADPH oxidase; produce superoxide radical (O-). Proton therapy accurately targets very specific locations, which may result in less damage to surrounding . The boundary that surrounds the contents of the nucleus is the e. protease. - must be handled carefully in large doses, but they can be rendered relatively innocuous by dilution, neutralization, or other physical treatment, draws from many disciplines, including biology, biochemistry, pharmacology, among others. The majority of the SMC is . 13-9 Which of the following statements regarding herpes simplex virus is false? a. the cell wall Auditing CIS Reviewer - adt - AUDITING IN A COMPUTERIZED ENVIRONMENT e. They induce suppression of the immune response by causing T cells to undergo apoptosis. Antiviral drugs that have become useful are usually associated with which of the following properties? e. MHC class II. b. respiratory syncytial virus b. the sequence of the conserved X box of the HLA class II promoter d. Every living organism is composed of one or more cells, and all living cells arise from preexisting cells. Large molecules are always excluded from crossing the membrane. Its function most resembles A: The small microscopic organisms that cannot be seen with the naked eye are called microorganisms.. c. hereditary angioedema Job Postings | County of San Diego e. antigenic drift. The idea that a small amount of radiation may stimulate DNA repair, whereas a large amount of radiation causes cancer, is an example of _____________________. Which of the following accurately describes HIV? The color change indicates that the iodine molecules were small enough to diffuse across the membrane and react with the starch inside the cell. c. passive carrier proteins a. smooth ER c. lysosome Yes; without organelles, prokaryotes are unable to bring together the reactants needed for biological reactions. Editor's Choice articles are based on recommendations by the scientific editors of MDPI journals from around the world. You buy a bunch of small, round, red radishes at the grocery store; they are on sale because they have been sitting in the produce aisle for a while. Microbes acquire resistance to antibiotics through different processes that include random mutations and ______________ reproduction. d. There will be no net movement of water because the solutions are isotonic. A mutation in the gene encoding the integrase enzyme (the protein that inserts the dsDNA into a host cell's DNA) renders the protein non-functional. All of the answers given. Which of the following statements accurately describes plant virus infections? IV. mutations are introduced into the virus. It is secreted and functions as a monomer but facilitates the dimerization of its receptor. c. receptor-mediated endocytosis. Which of the following statements accurately describes the process of DNA replication? b. Developing lung cancer after exposure to radiation - Chronic effect. Dialysis tubing is a selectively permeable membrane that can be filled with a solution to simulate a cell. d. reverse transcriptase. The water will mostly move from side "B" to side "A" because the water concentration is higher on side "B." d) induce the formation of prions in the nucleus of the cell. 13-23 Which of the following pairs is mismatched? d) viroid Why are animals still used to test toxicity of substances? a) capsid True or false: Most people in industrialized nations have PFC residues (perflurooctanoic acid) in their blood. a. LFA-3 The two strands of DNA separate, and a single new strand is synthesized using the existing strand as a template. b. I would expect to find the photosynthetic enzymes associated with the plasma membrane of the bacteria. Comparative Study on Socio-Spatial Structures of the Typical Plain a. contain genetic material b. can be killed using antibiotics c. have a cell membrane d. have a protein coat a 5. You and your parents may disagree about the risk associated with your exposure to tobacco or alcohol. Probability is a calculation of the statistical danger of a risk, and this information can help us decide which risks to tolerate and which to avoid. Which of the following statements are reasonable conclusions that can be drawn from a recent headline that announced the discovery of 23 pesticides in 16 food samples? b. receptor proteins a. a. Streptococcus pneumoniae a. During the process of ________, water diffuses across a semipermeable membrane from an area where water is more concentrated to an area where water is less concentrated (it moves along the water concentration gradient). b. d. superantigen - Our focus on reducing pollution to protect human health has neglected risks to natural ecological systems that may be of greater ultimate importance. From what substance do liposomes spontaneously form and why are they important? When the toxic burden of organisms at a lower trophic level is accumulated and concentrated by a predator in a higher trophic level it is called ______. - Data on which chemicals are endocrine disrupters are not definitive. What is the function of reverse transcriptase in retroviruses? Compare and contrast the nuclear envelope and the plasma membrane. c) viroids 13-7 Genes encoding _____ rearrange in trypanosomes permitting replication and survival of the pathogen until the host produces an antibody response against the altered gene product. Which of the following statements accurately describes how endocrine disrupters affect us? Our goal is to let community members put their participance into new projects with confidence. A mutation in the gene encoding the integrase enzyme (the protein that inserts the dsDNA into a host cell's DNA) renders the protein non-functional. Dose (amount of experience) - Horizontal (x) axis Which of the following accurately describe mutagens and their effects? Which of the following statements accurately describes plant virus infections? Q: Discuss the following statement: "Viruses exist in the twilight zone of life: outside cells they are. c - Dose must be above a threshold level before anyone in the population shows a response which suggests the presence of some defense mechanism against the harmful effects of the toxin. They may contain genomic DNA or RNA. - requires manufacturers to show that a substance is not dangerous before it is introduced into the marketplace. c. They stimulate between 2% and 20% of the total T-cell population. b) enter a replicative cycle that kills the host cell. So, the water osmosed across the plasma membranes out of the radish cells decreasing the turgor pressure inside of the cells and making them crunchier. f. It is able to render target cells responsive even if they express only one functional allele of IFNR1. Determine the average shear stress on the wetted perimeter of this channel. 13-44 Listeria monocytogenes replicates in _____ of macrophages after _____. B.) The measles virus causes mouth and gum infections. When iodine and starch are mixed together, they form a bluish-black compound that is easily seen. - Policy decisions about toxins must address how such materials affect not just humans but also organisms that define and maintain our environment. a. effective at minuscule concentrations Neurotoxins are poisons that affect us by ______.