b. Haemophilus influenzae Question 1. 34 Questions Show answers. b. MHC class II chain a) III b. the plasma membrane. d. pinocytosis. . They readily mix with the hydrophobic tails forming the core of the phospholipid bilayer. The majority of the SMC is . Certain pharmaceuticals, vaccines, and drugs - Injection (Intramuscular), As shown in the figure, every organism in the Lake Michigan food chain has some DDT in their body tissues at concentrations higher than in the environment due to Spatial variability of soil parameter distribution is crucial to calculating the pile foundation failure probability. Of the many factors that determine whether a particular chemical will prove to be dangerous, which of the following are based on the nature of the chemical agent itself? Viruses can reproduce on their own at any time. Match the term with its correct definition. c. latency b. X-linked hyper IgM syndrome Additionally, small Na ions and some proteins can pass through the membrane against the concentration gradient, but both require the assistance of active transport proteins. arXiv:2203.10869v2 [math.AP] 1 Mar 2023 Well-posedness for a diusion-reaction compartmental model simulating the spread of COVID-19 Ferdinando Auricchio( ) e. The capsular polysaccharide antigens of S. pneumoniae do not induce immunological memory. III. e. B cells; EBNA-1. c. nuclear pore. a. water (H2O) The saline you used was isotonic to the RBCs; this resulted in water osmosing through the RBC plasma membrane into and out of the cells at an equal rate. In which leaf tissues would you expect to find the highest density of chloroplasts? a. reverse transcriptase c) Cutting and assembling the capsid would be halted. The standard GNSS-IR model typically considers soil to be a single layer of medium and measures the average SMC between 1 and 10 cm below the soil surface. Generally, the CIS environment in which personal computers are used is less structured than a centrally-controlled CIS environment. possibility of suffering harm or loss resulting from a given action, process of estimating the threat a particular hazard poses to human health. The function of photosynthesis is to use solar energy to make ATP; the primary function of respiration is to break down ATP to release energy. - demand protection from every potentially harmful contaminant or accept some exposure as our bodies can repair some damage 13-6 All of the following use gene conversion to avoid immune detection except _____. a. X-linked agammaglobulinemia: gamma globulin injections c. a prokaryotic cell without a nucleus. If each sugar molecule represents a percentage point of sugar dissolved in the solution, what change would you expect to see in the solution level over time and why? In the following section, we describe this approach in detail. c. inhibition of MHC class I expression b) removal of viral mRNAs d. pinocytosis. Asbestos workers who smoke, however, have a 400-fold increase in cancer rates. d. creates energy by converting ribosomes to proteins. A. green algae are often unicellular, while land plants are not B. land plants have plastids and green algae do not C. algae have alternation of generations but land plants do not D. land plants have cell walls containing cellulose but green algae do not kill the host cell immediately, while bacteria maintain life within the . Which cell that was viewed is most likely a prokaryote. Which of the following statements helps to explain why RNA viruses tend to have unusually high rates of mutation? Treat the sample with proteases that digest all proteins and then determine whether it is still infectious. Can you add thermal energy to an object without increasing its temperature? Match each type of substance to its characteristic. atom. d. RAG1 or RAG2 13-56 Bare lymphocyte syndrome leading to a lack of HLA class II molecule expression is due to a defect in _____. c. X-linked lymphoproliferative syndrome - Acute exposure involves a single contact with a toxic chemical. A) After infection, the viral genes immediately turn the host cell into a lambda-producing factory, and the host cell then lyses. Chytridiomycosis (or chytrid fungus) is an ecological disease that affects amphibians and is ______. Which of the following statements accurately describes a viral envelope? d) whether the genome of the virus is DNA or RNA, a) the proteins on the viral surface and that of the host cell membrane, Antiviral drugs that have become useful are usually associated with which of the following properties? b) IV no longer just for the wealthy, as they are now becoming common in the developing world. Which of the following statements accurately describes the lysogenic cycle of lambda () phage? a) bacteriophages b. b. hyper IgM syndrome caused by deficiency of CD40 ligand B. Ebola hemorrhage fever is caused by a ______, and was the source of an epidemic in western Africa in 2014. This virus attacks the white blood cells (immune cells) of the human body. a. X-linked agammaglobulinemia All living cells arise from preexisting cells, and all living cells have membrane-enclosed organelles. Julie S Snyder, Linda Lilley, Shelly Collins. A defense mechanism that repairs the damage caused by a toxin would create a _______________ response curve; a minimal dose is necessary to induce an observable effect. Which statement most accurately describes a virus? B. A screen door allows breezes to enter and aromas to exit but keeps out insects. mutations are introduced into the virus. Bacteria injects DNA into a host cell. This vesicle is now within the amoeba itself and will soon fuse with other vesicles containing digestive enzymes. - Endocrine disrupters may cause feminization of males. Persistent organic pollutants (POPs) are a concern because being ______. - when risks are known and we feel in control of the outcome. - Chronic exposure involves continuous or repeated contact with a toxic substance over a long period of time (months or years). b. Question 33. B. Which of the following is/are part of accepted cell theory? Which one of the following statements best describes the role of B cells and T cells in the human body? c. phagocytosis. B. HIV is able to hide from the immune system. This survey study estimates the prevalence of current hepatitis C virus infection among adults in each US state and the District of Columbia from 2013 to 2016 u . a. effective at minuscule concentrations b) They can be controlled by the use of antibiotics. a. channel proteins Reference: ref 1 costs may increase significantly to protect the very small number of highly sensitive individuals at the extreme end of the curve. a. CD4 The radish cells were hypertonic to the water in which they were soaking. Which aspect of antibiotic resistance development in microbes is depicted in this image? c. facilitated diffusion Herpes simplex virus infects B lymphocytes. a) III The cell should lose weight over time because it is hypotonic to the beaker environment and water will enter the cell through osmosis. a. CD40 ligand Correct answers: 2 question: 7. which one of the following statements is most accurate regarding the mayflower compact? c) membrane anti-HIV antibodies are detectable in their blood serum. Examine the figure below. Match the concentrations of DDT to where that concentration might be found based on the level of biomagnification. b. simple diffusion Yes; without organelles, prokaryotes are unable to bring together the reactants needed for biological reactions. b. d. eukaryotic and animal. This is an example of You have four methods at your disposal that you can use to analyze the substance in order to determine the nature of the infectious agent. Which of the following statements accurately describe the hemoglobin molecule? c. The radish cells were hypertonic to the water in which they were soaking. e. activate : T cells Which of the following is something bacteria and viruses have in common? 13-24 All of the following are X-linked immunodeficiencies except _____. d. inhibition of peptide transport by transporter associated with antigen processing (TAP) e. the initial phase of infection is followed by clinical latency. f. Mycobacterium tuberculosis. If the concentration of sugar molecules in water on side "A" of a selectively permeable membrane is 5 percent, and the concentration of sugar molecules in water on side "B" of a selectively permeable membrane is 15 percent, which way will the water move and why? Which of the following accurately describes HIV? What do viruses need to reproduce? b. the virus escapes from the phagosome into the cytosol People living in ______ areas, especially in ______, are particularly susceptible to death linked to air pollution. e. agammaglobulinemia caused by deficiency of Bruton's tyrosine kinase Zooplankton consume DDT 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. b. the IL-12 receptor Treat the sample with proteases that digest all proteins and then determine whether it is still infectious. Viruses can reproduce only using a host cell. a. susceptible individuals; immune individuals - HIV is more lethal. II. b. a. One important way to control the spread of viruses in through answer choices the use of vaccines drinking a lot of tea a. is the place where a cell's genetic material is stored. - Chronic conditions such as cardiovascular disease and diabetes are increasing and spreading to poorer populations. This series recruitment will close on March 28, 2023, at 11:59 pmTHIS POSITION IS ELIGIBLE FOR APPOINTMENT AT STEP 1, $66,164.80. Multiple Choice Viruses are typically a piece of genetic material encased in a protein capsule. - 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. Car accidents and firearm assaults - These have risks between 1 in 103 to 1 in 285 Which of the following statements accurately describes plant virus infections? Treat the substance with nucleases that destroy all nucleic acids and then determine whether it is still infectious. e. fall below 200 cells/l. 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. superantigen b. impenetrable b. vascular bundles Why are animals still used to test toxicity of substances? c. Proviruses are flanked by repetitive sequences called long terminal repeats (LTRs). Biomagnification occurs because of bioaccumulation. e) Retroviruses. The color change does not really tell us anything about the experiment. A majority of the MRSA (methicillan-resistant Staphylococcus aureus) infections recorded in 2011 were related to ______. Rank the stages in biomagnification of DDT, putting the earliest stage on top. C.) A virus is nonliving because it lacks an organelle that allows movement. With the first bite, you notice their texture is not as crisp and crunchy as you like. A virus must use its host-cell processes to replicate. - People tolerate familiar risks, despite the high probability of harm, because they often downplay the risk associated with familiar activities. Rapid cell reproduction replaces damaged cells in tissues, but the more cells reproduce, the greater the chances are that they may become cancerous. a. a. a. they are recycled by endocytosis more quickly than the normal receptor Ospreys eat larger fish. b) Formation of the provirus would be stopped. We perceive risk differently, depending on control, interests, or context. * A. d. They do not readily mix with the hydrophobic tails forming the core of the phospholipid bilayer; therefore, the only way they can move into the cell is by endocytosis. Significantly more people have HBV (hepatitis) than HIV, but they are less likely to be treated for it. 13-35 Protective antibodies generated in response to influenza virus bind to _____ of the viral envelope. Includes pectins, vitamins (like A, C, and E), and cruciferous vegetables (like cabbage and broccoli) in your diet. Why would hydrophilic substances such as sodium ions (Na+), hydrogen ions (H+), sugars, and amino acids be unable to simply diffuse across a plasma membrane? Adopting the precautionary principle in regulating environmental toxins ______. When it acts on target cells, it enhances the engulfment and killing of bacteria. The measles virus causes brain and skin infections. Its function most resembles 13-53 Chronic granulomatous disease (CGD), a condition resulting in chronic bacterial and fungal infections, is caused by one or more defects in _____, compromising the ability of macrophages to _____. Which statement accurately describes capitalism? - better nutrition C. Applying an external force to an enclosed volume of air will allow the air to expand and the volume to decrease. Question: Which of the following statements accurately describes a viral envelope? A.) d. The water will not move at all because the water concentrations are isotonic. The World Health Organization's definition of health includes ______ wellbeing. Q. Which of the following statements accurately describes a difference between viruses and bacteria? You observe layers of cells that have a definite, rigid, rectangular shape; there appears to be a nucleus in all of the cells and there are many oval-shaped green structures that seem to be moving around inside of the cells in an orderly fashion. 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 _______. Match each of the following factors to how it influences whether a particular chemical will prove to be dangerous. - 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. b. antigenic shift One important way to control the spread of viruses is through a. the use of vaccines. d. There will be no net movement of water because the solutions are isotonic. Larger fish eat smaller fish the selective absorption and storage of a great variety of molecules inside cells at levels that are higher than the environment. c. TAP1 or TAP2 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. sodium ions (Na+), hydrogen ions (H+), sugars, and amino acids, a. water (H2O), carbon dioxide (CO2), oxygen (O2). disability-adjusted life years, which evaluates the total cost of disease, not just how many people die, any abnormal change in body conditions that impairs normal functions. "Approximately 88% of our 2022 revenue came from technology-enabled business solutions. A: The small microscopic organisms that cannot be seen with the naked eye are called microorganisms.. - Our increasing ability to detect traces of a substance sometimes means that though we can detect it, the level may be too low to cause harm. B) Most of the prophage genes are activated by the product of a particular prophage gene. Toluene and formaldehyde from cigarette smoke - Inhalation (respiratory tract) b. hemagglutinin b) Replication of their genomes does not involve proofreading. Which of the following are environmental disease (health) agents? d. hereditary angioedema Exposure to radiation during an x-ray for a broken foot - Acute exposure An amoeba, a protozoan that moves by pseudopodia, approaches a smaller protozoan and extends its pseudopodia (extensions of cytoplasm in plasma membrane) around the smaller protozoan. d. properdin (factor P) c) They are rarely spread by insects. What general cell type are you most likely observing? Substances that cause invasive, out-of-control cell growth resulting in tumors are called ______. b) They can be spread via the plasmodesmata. This study was reported . Which of the following statements accurately describes the measles virus?
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