Which of the following correctly characterizes white-nose syndrome? The radish cells were hypotonic to the water in which they were soaking. Which of these best describes a virus? c. CD40 ligand; produce GM-CSF a. a) III d. T-cell and B-cell development d. carrier proteins. Quiz 17: Viruses | Quiz+ 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. 13-14 Epstein-Barr virus-infected cells are poor targets for CD8 T-cell killing because _____. Sensors | Free Full-Text | Multilayer Model in Soil Moisture Content C) A person with an illness cannot be considered healthy. One important way to control the spread of viruses in through answer choices the use of vaccines drinking a lot of tea What is the current concern with using Sprague-Dawley rats in toxicology studies? a. Includes pectins, vitamins (like A, C, and E), and cruciferous vegetables (like cabbage and broccoli) in your diet. Chapter 7 Practice Questions - University of New England c. inhibition of MHC class I expression They bind to MHC class I molecules and T-cell receptors. The nuclear envelope consists of two concentric phospholipid bilayers while the plasma membrane is only one phospholipid bilayer. Poliovirus is an RNA virus of the picornavirus group, which uses its RNA as mRNA. a. Virus vs Cells | Biology Quiz - Quizizz At times we lack the medicines with which to treat them, as some emergent diseases are caused by drug-resistant strains of a pathogen. 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. Viral genomes consist of what type of nucleic acid molecules? Ospreys eat larger fish. 0.04 ppm - Zooplankton .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. One of the differences between bacteria and viruses is that : a. viruses are living and bacteria are non -living . Trends in obesity-related illnesses such as heart disease and diabetes show that such diseases are ______. 13-15 Superantigens bind to all of the following molecules except _____. Which of the following are true about the effects of exposure to carcinogens? A collection of three American sterling silver vases and a sterling-overlay glass vasevarious makers, 20th centuryComprising a Tiffany & Co. bud vase with 925 sterling hallmark, with 1907-1947 date mark, maker's mark, "19397 5521" marked to interior; an early 20th century Unger bud vase with vine and floral engraving, with sterling hallmark, maker's mark, "09792" marked to . The pattern of mental and physical defects that can develop in a fetus in association with high levels of alcohol consumption during pregnancy is called _________________ ______________________ syndrome. Dog attacks. Which of the following groups of people is most likely to have an increased exposure to toxic chemicals because of their job responsibilities? Cell W. c. it gave the pilgrims their own charter. What is the current trend in the worldwide mental health disease burden? Cancer answer choices. The selective absorption and storage of a great variety of molecules inside cells and tissues at levels that are higher than in the environment is called ______. b. Proviruses consist of double-stranded DNA. Indoor and outdoor ______________ pollution contributes to millions of deaths every year. Hydraulic structures, e.g., sluicegates and pumping stations, can directly influence flooding processes and should be represented in flood modeling and risk assessment. 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. hereditary angioedema Question 33. What is the function of reverse transcriptase in retroviruses? Editors select a small number of articles recently published in the journal that they believe will be particularly interesting to readers, or important in the respective research area. The two strands of DNA separate, and a single new strand is synthesized using the existing strand as a template. Solved Which of the following statements accurately | Chegg.com - better nutrition 13-45 Which of the following is not a characteristic of staphylococcal enterotoxins? This is an example of c. I would expect to find the photosynthetic enzymes associated with the mitochondria of the bacteria. d) Reverse transcription would no longer be possible. Stop drinking alcohol during pregnancy - Reduced risk of fetal alcohol syndrome. a. immune-complex disease A screen door allows breezes to enter and aromas to exit but keeps out insects. Oil-soluble types - These substances need a carrier molecule to move through the environment, but once they are inside cells they likely accumulate and persist. Treat the sample with proteases that digest all proteins and then determine whether it is still infectious. b. NADPH oxidase; produce superoxide radical (-) Which of the following statements helps to explain why RNA viruses tend to have unusually high rates of mutation? PFCs are persistent chemicals, so they are ______. An experiment mixed together oil (lipids), organophosphate-containing detergent in water, and copper ions to act as a catalyst for a chemical reaction. The measles virus causes mouth and gum infections. Traditional reliability design methods describe the dispersion degree of soil parameters with their point variance without considering the influence of correlation distance. c. The solution level on the left side of the figure would decrease while the solution level on the right side of the figure would rise. triggering a response in our immune systems, foreign materials that stimulate the production of specific antibodies. Viruses can reproduce only using a host cell. What is the determined cause of colony collapse disorder? Potential harm to other species or entire ecological systems. Living cells have an intact phospholipid bilayer that separates the cell from its external environment; this structure is commonly referred to as the. Use unequal arrows to indicate whether reactants or products are favored. stable, they do not degrade easily and have become extremely widespread in the environment. Name several indicators that scientists use to evaluate the effects of climate change. Regulators struggle with how to set acceptable pollution levels based on the dose-response curve because ______. 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. - Allergens activate the immune system. d. Certain solutes move freely across the membrane by simple diffusion while others must be helped across by active or passive transport proteins; some substances are completely excluded from crossing the membrane. Reduce the amount of salt and animal fat in your diet - Reduced cardiovascular disease e) re-infection by the same herpesvirus strain, b) copies of the herpesvirus genome remaining as mini-chromosomes in some host cell nuclei. C.) A virus is nonliving because it lacks an organelle that allows movement. Why do scientists classify viruses as non-living? d) the proteins on the viral surface and that of the host cell membrane. Prokaryotes and eukaryotes are primarily distinguished by the absence or presence of internal membrane-enclosed organelles. answer choices they need genetic material They need a host cell They need bacteria They need insulin If the bacteria cannot be moved across the WBC membrane, how will the WBC most likely take it in? Solved Which of the following statements accurately | Chegg.com b. proper hand washing. Are prokaryotic cells at an evolutionary disadvantage because they lack organelles? This is because the solution on the left side of the figure is hypotonic while the solution on the right side of the figure is hypertonic. Which statement most accurately describes a virus? A.) A virus is C. HIV leads to AIDS, when about one third of the individual's T cell count is lost. True or false: Sick building syndrome refers to symptoms such as headaches, allergies, and chronic fatigue caused by a variety of toxins that build up in poorly ventilated indoor spaces. 13-11 Herpesviruses include all of the following except _____. Detoxification - Liver Because sensory neurons express low levels of MHC class I molecules, they provide appropriate sites for viral dormancy. Potential routes of exposure to toxins in the environment. b) IV b. the virus escapes from the phagosome into the cytosol 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? ** see figure. We perceive risk differently, depending on control, interests, or context. The color change indicates that the iodine molecules were small enough to diffuse across the membrane and react with the starch inside the cell. 13-9 Which of the following statements regarding herpes simplex virus is false? Which of the following accurately describe mutagens and their effects? d. superantigen A virus is living because it has an envelope that acts like a cell membrane. Which statement most accurately describes a virus? d) flare-ups occur when dormant viral proteins attack new cells 2. You place a small drop of the blood on a slide, add a drop of strong saline (salt) solution, and then cover all of it with a coverslip. f. It is able to render target cells responsive even if they express only one functional allele of IFNR1. Tests on living animals are more reliable than other tests. ______ are chemical agents that damage or alter DNA, which can result in birth defects during fetal development or tumor growth in later life. You isolate an infectious substance that is capable of causing disease in plants, but you do not know whether the infectious agent is a bacterium, virus, or prion. Multiple Choice Viruses are typically a piece of genetic material encased in a protein capsule. - 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. c. It activates the JAK-STAT signal transduction pathway after binding to its cognate receptor. b. Mortality rates are reduced by the administration of antibiotics to affected individuals. This is followed by a non-translated leader sequence, and then a single long protein-coding region (~7,000 nucleotides), followed by a poly-A tail. 5. b. the plasma membrane. Heart disease and cancer - These have risks of 1 in 6-7 DDT is a well-known case of biomagnification in the environment. c) Reverse transcription would no longer be possible. a. osmosis A: Answer- Virus is a submicroscopic infectious agent that is non-living outside the cell and living. On the basis of the experimental data and the gradient-less optimization approach, the modeling strategy and the parameterized equivalent dynamic finite element model are presented. - Chronic conditions such as cardiovascular disease and diabetes are increasing and spreading to poorer populations. d. The host cell must provide the transcriptional and translational machinery in order for RNA and protein products to be made from proviruses. 13-9 Which of the following statements regarding herpes simplex virus is false? b) enter a replicative cycle that kills the host cell. They face communication difficulties mainly because others, who generally do not know sign language, are unable to communicate with them. c. smooth endoplasmic reticulum Drowning You isolate an infectious substance that is capable of causing disease in plants, but you do not know whether the infectious agent is a bacterium, virus, or prion. d. the use of antibiotics. - Data on which chemicals are endocrine disrupters are not definitive. B) Most of the prophage genes are activated by the product of a particular prophage gene. Toxic substance - These substances damage or kill living organisms because they react with cellular components to disrupt metabolic functions. e. None of the above is mismatched. a. susceptible individuals; immune individuals a. osmosis Write the equation describing the equilibrium established when HNO2HNO_2HNO2 reacts with NH3NH_3NH3. The water will mostly move from side "A" to side "B" because the water concentration is higher on side "A." Viruses Furr | Other Quiz - Quizizz Unit 2 Cells and Viruses Period 4 Quiz - Quizizz 13-78 During infection with HIV, a person is said to undergo seroconversion when _____. 13-40 Which of the following is not a virus that can cause a persistent infection in the host by establishing latency? 13-24 All of the following are X-linked immunodeficiencies except _____. b. Today health agencies calculate DALYs rather than mortality rates as a measure of disease burden because ______. - Chronic conditions such as cardiovascular disease and diabetes are increasing and spreading to poorer populations. b. antigenic shift e. CD18. e. MHC class II. a. channel proteins c. nucleic acids. County employees are subject . Interpret this graph by matching each label to the correct line in the graph. Viruses are typically a piece of genetic material encased in a protein capsule. 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.