which of the following statements accurately describes viruses? which of the following statements accurately describes viruses?

d. it made plymouth a royal colony - Mutagens are agents such as chemicals or radiation that damage DNA. nonspecific activation 2-20% of body's CD8 T cells. You know that the enzymes needed to perform photosynthesis in plant cells are closely associated with the membranes in chloroplasts. Find the general solution of the given system. - People tolerate high risks in activities of their choosing, as they often have an exaggerated view of their abilities to control fate. 80% of antibiotics used in the United States are _______. Which of the following statements about viruses is false? Which viruses have single-stranded RNA that acts as a template for DNA synthesis? b) Formation of the provirus would be stopped. d. factor D 13-76 Which of the following is required for fusion of the human immunodeficiency viral envelope with the host cell membrane and subsequent internalization? 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. O The presence of an envelope influences viral entry and exit strategies. a. water (H2O), carbon dioxide (CO2), oxygen (O2) - 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. The leading reasons for nonrational risk perception include ______. The boundary that surrounds the contents of the nucleus is the d. T-cell and B-cell development a. bacteria, some fungi (yeast), and many protozoans. d. lysosomes, The leaves of a plant typically have different tissue layers that function in different ways. Which statement most accurately describes a virus? A.) A virus is Job offers for selected candidates will be made the week of May 1, 2023. e) re-infection by the same herpesvirus strain, b) copies of the herpesvirus genome remaining as mini-chromosomes in some host cell nuclei. Because organs such as your skin and liver make frequent repairs, they are also more likely to ______. The following data are taken from measurements on Indian Fork Creek: A=26m2A=26 \mathrm{m}^{2}A=26m2, P = 16 m, and S0=0.02m/62mS_{0}=0.02 \mathrm{m} / 62 \mathrm{m}S0=0.02m/62m. 13-20 Dominant mutant forms of IFNR1 exhibit all of the following in heterozygotes except _____. d. carbohydrates. Other duties may be assigned as deemed necessary or appropriate by management. Match the concentrations of DDT to where that concentration might be found based on the level of biomagnification. Editor's Choice articles are based on recommendations by the scientific editors of MDPI journals from around the world. What is the most plausible explanation for the appearance of the blood cells on your slide? Test Bank for Fundamentals of Nursing 10th Edition by Taylor True or false: Most people in industrialized nations have PFC residues (perflurooctanoic acid) in their blood. 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 ______. The estrogen-like compound that acts as a substitute hormone and disrupts gene expression, as shown in the image, is a(n) ______. DDT is deposited in water from agricultural runoff Patriot Lite Travel Medical Insurance SM - Addresses the insurance needs of U.S. and non-U.S. citizens who need temporary medical insurance while traveling for business or pleasure anywhere outside of their home country. 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. d. They cause excessive synthesis and release of cytokines. They bind to MHC class I molecules and T-cell receptors. c. They do not readily mix with the hydrophobic tails forming the core of the phospholipid bilayer; therefore, they must move across by facilitated diffusion. They affect wildlife populations, such as bats and frogs. d) They have little effect on plant growth. When a dose-response curve for a particular toxin shows a threshold for the response, it generally suggests ______. 0.003 ppb - DDT in water b. Staphylococcus aureus Which of the following is a reasonable and possible explanation of the experimental results? answer choices. 4. d. local populations; global populations. C. A virus does not eat, use energy, or have cells. e. nucleus; fusion with the nuclear membrane. 13-15 Superantigens bind to all of the following molecules except _____. c. Proviruses are flanked by repetitive sequences called long terminal repeats (LTRs). You and your parents may disagree about the risk associated with your exposure to tobacco or alcohol. b. DNA-dependent DNA polymerase; influenza virus Registered Nurse Job in Saint Joseph, MI at Trinity Health answer choices. Match each type of substance to its characteristic. Choose the statement that correctly describes HIV and HBV. Shafting, three-point leveling units, and other components are reasonably simplified during the modeling . Sustainability | Free Full-Text | Influence of Correlation Distance of 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. 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. To test your knowledge, discuss the following topics with a study partner or in writing, ideally from memory . The two strands of DNA separate and serves as a template, and the daughter molecule will have a mix of an old and new strand. The County of San Diego Announces an Excellent Entry Level Professional Opportunity AIR QUALITY INSPECTOR I Interviews will take place the week of April 24, 2023. They are much less sensitive to ______ than regular rats, so studies using them are highly suspect. d. reverse transcriptase. 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? - Immunological status affects susceptibility to toxins. Some viruses have an external membrane envelope. Filter the substance to remove all elements smaller than what can be easily seen under a light microscope. Electrotherapy Unit III PTA Ultrasound Quiz 1. - dramatically reducing frog populations in many areas Some antibiotics used to treat bacterial infections kill the bacteria by chemically punching holes in the cell wall of the bacteria, by preventing the bacteria from replicating their DNA, or by many other actions that ultimately cause cell death. 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. a. adenosine deaminase (ADA) Biomagnification occurs because of bioaccumulation. What factors make emergent diseases a special problem? *two answers*, which of the following. The epidermis layer functions like a covering of skin to protect the leaf while vascular bundles carry water and nutrients through the leaf. The viral replication cycle can produce dramatic biochemical and structural changes in the host cell, which may cause cell damage. e. They induce suppression of the immune response by causing T cells to undergo apoptosis. a. transport proteins They produce proteins used by other parts of the cell. Viruses and Bacteria | Science Quiz - Quizizz 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. Which of the following statements accurately describes the properties of gases? The 2014 epidemic of ______ in western Africa infected approximately 20,000 people and killed 8,000. Hazardous substances - These substances are dangerous because they are flammable, explosive, acidic, caustic, irritants, or sensitizers. CareCloud Reports Record Full Year 2022 Results - suggests a "better safe than sorry" approach of social responsibility to protect the public from harm in the face of scientific uncertainty b. Which of the following are true about the effects of exposure to carcinogens? Which of the following statements most accurately describes a selectively permeable membrane? c. inhibition of MHC class I expression The water will mostly move from side "A" to side "B" because the water concentration is higher on side "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. Biology Test 1 Chapter 4 Flashcards | Quizlet Virus inject the nucleic acid into the host cell, and the nucleic acid integrates into the host cell DNA, and stay dormant for a long time. d) ability to remove all viruses from the infected host. 13-2 _____ results when a gene affecting the immune system mutates, thereby compromising the body's defense against infection. b. 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. a. prokaryotic and plant In assessing the danger of toxic substances, which of these statements are true? This is an example of Which of the following statements accurately describes the path of Pesticide residue on food - Ingestion (gastrointestinal tract) Indoor and outdoor ______________ pollution contributes to millions of deaths every year. Viruses have a higher metabolism than bacteria cells. Differences in physiology, metabolism, and body size result in species reacting ______ to a specific compound, which makes human risk difficult to estimate. Bisphenol A (BPA) - Used to produce plastic-coated items such as linings of cans and bottles, tooth-protecting sealants, and water pipes. 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. e. thymic development. Correct answers: 2 question: 7. which one of the following statements is most accurate regarding the mayflower compact? d) Vertical transmission is the spread of viruses from trees and tall plants to bushes and other smaller plants, and horizontal transmission is the spread of viruses among plants of similar size. If you already knew that the infectious agent was either bacterial or viral, select all the treatments that would allow you to distinguish between these two possibilities. Outbreaks of health problems that have a psychological rather than a physical basis are referred to as ______. a. adenosine deaminase (ADA) c) Vertical transmission is the spread of viruses from the upper leaves to the lower leaves of the plant, and horizontal transmission is the spread of a virus among leaves at the same general level. Biology Test 2 Flashcards | Quizlet Adenine (A), thymine (T), guanine (G), and cytosine (C) are the ________ building blocks for DNA; they are organized in different combinations to code for all of the proteins needed to accomplish everything the cell does. PDF Name: Date: Block: Bacteria & Virus Unit Review - lcps.org Which of the following is an example of a synergistic effect? Use unequal arrows to indicate whether reactants or products are favored. c. infected cells do not express any viral proteins during latency d. The RBCs were hypertonic to the saline; this resulted in water osmosing through the RBC plasma membrane mostly into the cells. 13-11 Herpesviruses include all of the following except _____. b. the chromosome - Chronic exposure involves continuous or repeated contact with a toxic substance over a long period of time (months or years). This vesicle is now within the amoeba itself and will soon fuse with other vesicles containing digestive enzymes. The solution level on the left side of the figure would rise while the solution level on the right side of the figure would decrease. What does the saying "the dose makes the poison" mean? c. secondary immunodeficiency diseases 13-44 Listeria monocytogenes replicates in _____ of macrophages after _____. a. LFA-3 Larger fish eat smaller fish Which of the following statements correctly describes one difference between green algae and land plants? 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. - for activities we enjoy or find profitable a. 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. Large molecules are always excluded from crossing the membrane. If a bottle of perfume were spilled in the corner of a large lecture hall, the students sitting near that corner of the room would very quickly smell the perfume. 120 seconds. 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. At its 5 end, the RNA genome has a viral protein (VPg) instead of a 5 cap. c. converts sunlight into chemical energy. 6. The global navigation satellite system-interferometric reflectometry (GNSS-IR) was developed more than a decade ago to monitor soil moisture content (SMC); a system that is essentially finished has emerged. 13-12 Shingles is associated with infection by _____. Examine the figure below. Which of the following statements explains why, despite these probability calculations, people perceive driving as less risky and are more accepting of the associated risks? c. nuclear pore. 13-80 Reverse transcriptase is a _____ encoded by _____. The hydrophobic tails lined up towards each other with their hydrophilic heads pointing out towards the water; this configuration formed a phospholipid bilayer that pulled into a spherical liposome. d. hereditary angioedema Chapter 19: Viruses Flashcards | Quizlet a) III Membranes budded off of the oil in this mixture. b. the cytoplasmic tail is truncated A piece of dialysis tubing has been filled with a cloudy white solution of 5 percent starch, 5 percent egg albumin (protein), and 5 percent glucose (a small sugar) dissolved in water to simulate a cell. Which of the following statements accurately describes the concepts of disease and illness? 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. The measles virus causes pancreas and liver infections. 13-37 An epidemic affects _____, whereas a pandemic affects _____. b. exocytosis. b. T cells; CD4 a. d. Chdiak-Higashi syndrome caused by deficiency of CHS1 The Golgi apparatus c. spongy mesophyll b. proteins. Its function most resembles A virus is living because it has DNA that stores genetic information. 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? a. the cytosol. - personal ignorance about the hazard Patriot Multi-TripSM - Quote The POPs of greatest concerns include substances such as chloropyrifos and glyphosate; we are exposed to them primarily by ______ because they are used in the production of ______. What is the current trend in the worldwide mental health disease burden? Question 33. You are in lab attempting to prepare a slide of cow blood for observation in a wet mount. 13-10 Which of the following is not associated with the reactivation of herpesviruses? a. susceptible individuals; immune individuals Heart disease and cancer - These have risks of 1 in 6-7 Which of the following statements accurately describes plant virus infections? a) They can be controlled by the use of antibiotics. The measles virus causes nasal and lung infections. no longer just for the wealthy, as they are now becoming common in the developing world. Neurotoxins are poisons that affect us by ______. c. I would expect to find the photosynthetic enzymes associated with the mitochondria of the bacteria. c. they are able to form stable dimers with the normal form Which of the statements below accurately captures the relationship between toxicity and potency? - Most organisms tolerate some exposure to a toxin but ultimately the dose gets large enough to kill them. The water will mostly move from side "A" to side "B" because the water concentration is higher on side "A.". 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. They bind to MHC class I molecules and T-cell receptors. 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. D. Viruses reproduce asexually while bacteria cells reproduce sexually. Which of the following statements about chronic and acute exposure and effects are correct? b. vascular bundles The Sprague-Dawley rat is ______ to endocrine disrupters than ordinary rats, so studies using them are not reliable. Please describe the competing . Culture the substance by itself on nutritive medium, away from any plant cells. a - Some of the population responds, even at zero dose of the toxin, suggesting that some other factor in the environment also causes this response a. Streptococcus pneumoniae 13-52 _____ participates in the T-cell cytoskeletal reorganization required for T-cell cytokine production and cell-mediated interactions. Match each of the following factors to how it influences whether a particular chemical will prove to be dangerous. c. it gave the pilgrims their own charter. Living cells have an intact phospholipid bilayer that separates the cell from its external environment; this structure is commonly referred to as the. - better nutrition A change in the pressure of a gas results in a more significant change in volume than it would in a liquid. C. Applying an external force to an enclosed volume of air will allow the air to expand and the volume to decrease. a. The study of the effects of flammable chemicals on forests, Allergies, headaches, and chronic fatigue due to poorly ventilated indoor spaces contaminated by toxins, such as formaldehyde released from carpeting, furniture, and other building materials can result in ______________ _____________ ______________.