which of the following statements accurately describes viruses?

c. the garbage truck that hauls away the wastes produced as a product is made Dose (amount of experience) - Horizontal (x) axis The dose-response curve showing LD50, as provided here, describes which of the following ideas? Issues associated with _______________ heath may take up to 15% of the worldwide disease burden by 2020 as conditions such as depression are growing more prevalent in both developed and developing countries. The measles virus causes pancreas and liver infections. a. 5. Which statement accurately describes capitalism? Which of the following statement accurately characterize prediabetes? the virus is able to transform into a host cell. Dialysis tubing is a selectively permeable membrane that can be filled with a solution to simulate a cell. - Different sensitivities among those exposed to the toxins d. RAG1 or RAG2 13-76 Which of the following is required for fusion of the human immunodeficiency viral envelope with the host cell membrane and subsequent internalization? d. They contain an entire copy of a cell's genetic material. b. anti-HIV antibodies are detectable in their blood serum a. prokaryotic and plant a) enter a replicative cycle that does not kill the host cell. II. c. phagocytosis. a. X-linked agammaglobulinemia This vesicle is now within the amoeba itself and will soon fuse with other vesicles containing digestive enzymes. b. NADPH oxidase; produce superoxide radical (-) - mortality data fail to capture the impacts of nonfatal outcomes of disease and injury on human well-being. The water will mostly move from side "A" to side "B" because the water concentration is higher on side "A." Large molecules are always excluded from crossing the membrane. Membranes budded off of the oil in this mixture. d. Both membranes consist of two concentric phospholipid bilayers and neither is selectively permeable or has pores. In 1973, the FDA required that cancer-causing compounds must not be present in meat at concentrations that would cause a cancer risk greater than 1 in a million lifetimes. d. extracellular spaces; coating itself with human proteins - misunderstanding probabilities about harm from a hazard c. bacteria and yeast 13-9 Which of the following statements regarding herpes simplex virus is false? (Use one word for your answer.). New York State coalition hepatitis C consensus statement leads to governor's action. e. Listeria monocytogenes. Glyphosate - Used as an herbicide, Roundup It may last a few seconds or a few hours. e. Bruton's tyrosine kinase (Btk). e. antigenic drift. Regulators struggle with how to set acceptable pollution levels based on the dose-response curve because ______. Multiple Choice Viruses are typically a piece of genetic material encased in a protein capsule. c. fall below 1000 cells/l d. Epstein-Barr virus e. CD18. a. CD18; produce cell adhesion molecules c. Epidemics; pandemics Where is the most likely place that enzymes needed for cellular respiration are anchored and functioning? 13-14 Epstein-Barr virus-infected cells are poor targets for CD8 T-cell killing because _____. ___________________, whereas the reason that gulls, who are tertiary consumers, have about 240 times the concentration of compounds as compared to the small insects sharing the same environment is due to _________________. 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? b. the cytosol; escaping from the phagosome 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 . 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. D. HIV can pass easily from one person to the next through casual contact. Hydraulic structures, e.g., sluicegates and pumping stations, can directly influence flooding processes and should be represented in flood modeling and risk assessment. The two strands of DNA separate, and a single new strand is synthesized using the existing strand as a template. c. Most deficiency syndromes are caused by dominant gene defects. A. Oxygenated blood is taken to the heart, from the lungs into the left atrium via the pulmonary arteries B. Oxygenated blood is taken to the heart, from the lungs into the right atrium via the pulmonary veins 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 _______. In which leaf tissues would you expect to find the highest density of chloroplasts? Name several indicators that scientists use to evaluate the effects of climate change. Which of the following correctly characterizes white-nose syndrome? 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. b) They can be controlled by the use of antibiotics. possibility of suffering harm or loss resulting from a given action, process of estimating the threat a particular hazard poses to human health. d. hereditary angioedema 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 d. Pandemics; epidemics. Which of the following statements explain why your evil roommate may have flare-ups for the rest of their life? e. MHC class II. - educating women. Which type(s) of chemicals travel through the environment most easily? Culture the substance by itself on nutritive medium, away from any plant cells. 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? How would the affect the HIV infection cycle? Bacteria injects DNA into a host cell. Why do scientists repeat their experiments over and over again? a. the cytosol. System management program c. Utility program d. Encryption. b. a cell wall. d. local populations; global populations. a. 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 water will mostly move from side "A" to side "B" because the water concentration is higher on side "A.". c. captures energy from sunlight and sends it to the mitochondria. O The envelope is only found on RNA viruses. Neurotoxins are poisons that affect us by ______. a. leukocyte adhesion deficiency A. 13-6 All of the following use gene conversion to avoid immune detection except _____. a. DNA-dependent DNA polymerase; HIV Significantly more people have HBV (hepatitis) than HIV, but they are less likely to be treated for it. c. processing to peptides is not required for T-cell activation d. Liposomes form from phospholipid bilayers and provide a barrier between an external environment and an internal environment; this creates an internal environment where specific chemical reactions needed to establish a living cell can occur separately from the external environment. b. the cytoplasmic tail is truncated Instead, the RBCs look very shriveled up. b. it founded the plymouth colony under a proprietary governor. c. eukaryotic and plant c. No; although prokaryotic cells are comparatively less efficient than eukaryotic cells, they are still able to carry out the processes necessary for survival and reproduction. b. prokaryotic and animal The radish cells were hypotonic to the water in which they were soaking. What is the current concern with using Sprague-Dawley rats in toxicology studies? answer choices Organism that lives on the cell and causes it harm Something that causes harm to the cell Cell that the virus invades and takes over Question 3 120 seconds Q. a) III e. Listeria monocytogenes a. reverse transcriptase Match the term with its correct definition. This study was reported . Which of the following organelles would you expect to be especially abundant in muscle cells? 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. c) They are rarely spread by insects. Contrast the methods used by the Greek philosophers and Dalton to study the d. carbohydrates. d) the proteins on the viral surface and that of the host cell membrane. What does the image depict in the context of environmental toxicology? b. the chromosome - Allergens act as antigens and stimulate the production of specific antibodies. Q. Toxic substance - These substances damage or kill living organisms because they react with cellular components to disrupt metabolic functions. 2. There is evidence that elephants communicate via infrasound, generating rumbling vocalizations as low as 14 Hz that can travel up to 10 km. c. They give an animal cell its shape. b. respiratory syncytial virus Zooplankton consume DDT One of the differences between bacteria and viruses is that : a. viruses are living and bacteria are non -living . a. Factor related to the exposure - Dose and frequency of contact with the chemical 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. c. The water will mostly move from side "A" to side "B" because the water concentration is higher on side "B." What do you expect to happen to the weight of the cell over time and what can you deduce from the color change? Adopting the precautionary principle in regulating environmental toxins ______. answer choices they are both living they are both cells they can both cause disease they are both non-living Question 7 30 seconds Q. d. MHC class I c. The cell should gain weight over time because it is hypertonic to the beaker environment and water will enter the cell through osmosis. 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. b. X-linked hyper IgM syndrome mutations are introduced into the virus. d) induce the formation of prions in the nucleus of the cell. All living cells arise from preexisting cells, and all living cells have membrane-enclosed organelles. a) co-infection with an unrelated virus that causes the same symptoms c. No; although prokaryotic cells are comparatively less efficient than eukaryotic cells, they are still able to carry out the processes necessary for survival and reproduction. 13-19 Which of these characteristics is not true of IFN-? Correct answers: 2 question: 7. which one of the following statements is most accurate regarding the mayflower compact? 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. b. S. pneumoniae is never completely eradicated during an infection and can reactivate if the host is immunocompromised. 13-47 Which of the following statements regarding inherited immunodeficiency diseases is correct? A. Some viruses have an external membrane envelope. costs may increase significantly to protect the very small number of highly sensitive individuals at the extreme end of the curve. d) viroid Where in the bacteria would you expect to find the enzymes needed to perform photosynthesis? a. Epstein-Barr virus The nuclear envelope consists of two concentric phospholipid bilayers while the plasma membrane is only one phospholipid bilayer. Substances that cause invasive, out-of-control cell growth resulting in tumors are called ______. A) A disease is traditionally diagnosed and treated by a nurse. developing countries where many people cannot afford adequate health care or to live in a healthy environment. d. reverse transcriptase. c. All living cells have membrane-enclosed organelles. e Which of the following statements accurately describes the process of DNA replication? 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? - Diet-related obesity can lead to illnesses such as diabetes and cardiovascular disease. However, some sugar molecules are too large to pass through the membrane either way without the assistance of passive transport proteins. Which of the following types of organisms are commonly single-celled (unicellular)? Which of the following statements correctly describes one difference between vertical and horizontal transmission of plant viruses? 4. a. plasma membrane. e. factor I question 2 5 out of 5 points which statement accurately describes capitalism? 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 Which of the following describes a virus? c) I Asbestos workers who smoke, however, have a 400-fold increase in cancer rates. a. integrase Potential routes of exposure to toxins in the environment. True or false: Conservation medicine refers to efforts by biologists to treat sick or injured wildlife. b) the enzymes carried by the virus 4. d. fall below 500 cells/l The bacterial phage lambda can infect some bacteria and answer choices They DO respond to a stimulus They need a host's energy because they do not have their own energy a. d. sodium ions (Na+), hydrogen ions (H+), sugars, and amino acids, a. water (H2O), carbon dioxide (CO2), oxygen (O2). 5. Morbidity refers to _____________, whereas mortality refers to ____________. You are in lab attempting to prepare a slide of cow blood for observation in a wet mount. Because sensory neurons express low levels of MHC class I molecules, they provide appropriate sites for viral dormancy. c. viruses are biotic and bacteria are abiotic . The nuclear envelope consists of two concentric phospholipid bilayers while the plasma membrane is only one phospholipid bilayer. 3. a. adenosine deaminase (ADA) a. impermeable - The chemical agent is water-soluble. A. a. Antigenic drift; antigenic shift - Chronic conditions such as cardiovascular disease and diabetes are increasing and spreading to poorer populations. 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. The Zika virus is most commonly transmitted by. What is the most plausible explanation for the appearance of the blood cells on your slide? 2 ppm - Large fish O The presence of an envelope influences viral entry and exit strategies. Proviruses form immediately after the RNA genome assembles with viral proteins and infectious irons are produced, 13-68 The pol gene of HIV produces all of the following except _____. d. cytosol. They are often harmful even in extremely dilute concentrations . c. osmosis. a. the cell wall d. There will be no net movement of water because the solutions are isotonic. In assessing the danger of toxic substances, which of these statements are true? 13-43 Which of the following is not used by the herpes simplex virus to subvert host immune responses? c. Bruton's tyrosine kinase a) Viruses are smaller in size than bacteria. Which of the following statements accurately describes a viral envelope? Previous infection with S. pneumoniae wears down the immune system over time. 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. Both membranes are selectively permeable and have pores. 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? The measles virus causes nasal and lung infections. What general cell type are you most likely observing? 13-38 The mode of evolution responsible for the production of recombinant influenza viruses composed of a genome derived from two different influenza variants is called _____. Which of the following help increase the selective permeability of a phospholipid bilayer membrane? a. lymphocytes and platelets 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. b) Formation of the provirus would be stopped. - 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. 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). 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. Bacteria are much larger than viruses, and t View the full answer Transcribed image text: 13-34 Which of the following explains why Streptococcus pneumoniae can infect an individual recurrently? b. facilitated diffusion 180 seconds. - Most organisms tolerate some exposure to a toxin but ultimately the dose gets large enough to kill them.

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