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Unit 2 Cells and Viruses Period 4 Quiz - Quizizz Rapid cell reproduction replaces damaged cells in tissues, but the more cells reproduce, the greater the chances are that they may become cancerous. Hepatitis C Virus Infection in US States and the District of Columbia d. they cause less severe immunodeficiency than do the homozygous recessive forms Poliovirus is an RNA virus of the picornavirus group, which uses its RNA as mRNA. e. RNA-dependent RNA polymerase; HIV. A screen door allows breezes to enter and aromas to exit but keeps out insects. Job Postings | County of San Diego Which of the following is a reasonable and possible explanation of the experimental results? d. immune evasion Stop drinking alcohol during pregnancy - Reduced risk of fetal alcohol syndrome. b. class II transactivator (CIITA) a. 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. c. They are acellular. a. the cell wall 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. True or false: Conservation medicine refers to efforts by biologists to treat sick or injured wildlife. When it acts on target cells, it enhances the engulfment and killing of bacteria. e. nucleus; fusion with the nuclear membrane. c. eukaryotic and plant O Enveloped viruses do not have protein spikes. 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. 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. Comparative Study on Socio-Spatial Structures of the Typical Plain The measles virus causes brain and skin infections. - caused by a fungus that thrives in cool, moist caves where bats hibernate Quiz 19: Viruses | Quiz+ Match the dietary consideration to its positive influence on a particular health condition. So, the water moved by osmosis across the plasma membranes into the radish cells increasing the turgor pressure inside of the cells and making them crunchier. Neither membrane is selectively permeable or has pores. Which of the following statements accurately describes a viral envelope? a. pinocytosis. Please describe the competing . a. the cytosol. e) re-infection by the same herpesvirus strain, b) copies of the herpesvirus genome remaining as mini-chromosomes in some host cell nuclei. c) Reverse transcription would no longer be possible. Which of the following statements accurately describes the lysogenic cycle of lambda () phage? b. polysaccharides, large protein molecules, low-density lipoprotein particles Multiple Choice Q09 Which of the following statements correctly describes the most probable fate of a newly emerging virus that causes high mortality in its host? a. influenza virus Nearly all substances are toxic depending on the amount, delivery rate, and method. Chediak-Higashi syndrome caused by the deficiency of CHS1. 1. True or false: All species have approximately the same reaction to a specific compound. Over time, the students sitting in the far corner of the room would smell the perfume. 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. a. facilitated diffusion. Which of the following statements accurately explains why tissue repair mechanisms may make those tissues more susceptible to cancer? - dramatically reducing frog populations in many areas Our professionals strive to design and deliver high quality human and health services that improve the safety, independence, and well-being of the people of . Which of the following important considerations in setting environmental health policy is most often overlooked? The WBC's job is to take the bacteria inside of itself and destroy the bacteria. 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. They a View the full answer Transcribed image text: Which of the following statements accurately describes the difference between bacteria and viruses? One important way to control the spread of viruses in through answer choices the use of vaccines drinking a lot of tea ** see figure. 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. ___________________, 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 _________________. There is evidence that elephants communicate via infrasound, generating rumbling vocalizations as low as 14 Hz that can travel up to 10 km. - possibly spread by humans from one cave to another on their shoes and clothing. A) After infection, the viral genes immediately turn the host cell into a lambda-producing factory, and the host cell then lyses. B. b. Reference: ref 1 a) bacteriophages b) IV The nuclear envelope consists of two concentric phospholipid bilayers while the plasma membrane is only one phospholipid bilayer. The odds of being involved in a car accident are about 1 in 100 while the odds of being involved in an airplane accident are about 1 in 5,000. c) viroids Which of the following is not a concern of environmental toxicology? a. d. carrier proteins. 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. a. is the site where lipids destined for other cellular compartments are manufactured. Sensors | Free Full-Text | Multilayer Model in Soil Moisture Content True or false: Mortality refers to being ill, whereas morbidity refers to dying from a disease. A. Yes; without organelles, prokaryotic cells cannot photosynthesize or respire. nonspecific activation 2-20% of body's CD8 T cells. d. phagocytosis. 101 Quiz - Quizizz Which of the following factors do policymakers consider most important in setting an effective environmental health policy? C.) A virus is nonliving because it lacks an organelle that allows movement. The measles virus causes pancreas and liver infections. b. Proviruses consist of double-stranded DNA. 2 ppm - Large fish a) III 180 seconds. Endocrine disruptors like BHA in facial moisturizers - Absorption (dermal) e. antigenic drift. 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 _______. stable chemicals are resistant to degradation and can cause problems long after application and far from the sites where they were originally used. They bind to MHC class I molecules and T-cell receptors. I. developing countries where many people cannot afford adequate health care or to live in a healthy environment. It has not been previously known or has been absent for at least 20 years. - Most people will tolerate a higher probability of occurrence of an event if the harm caused by that event is low. b. Show transcribed image text 13-10 Which of the following is not associated with the reactivation of herpesviruses? 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. we are exposed to many sources of harm, and it is difficult to separate the effects of different hazards in order to evaluate their risks accurately. 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 Many of these materials can be rendered relatively innocuous by dilution, neutralization, or other physical treatment. The mosquito becomes infected when it feeds on the blood of a person infected with the virus. The Sprague-Dawley rat is ______ to endocrine disrupters than ordinary rats, so studies using them are not reliable. The estrogen-like compound that acts as a substitute hormone and disrupts gene expression, as shown in the image, is a(n) ______. f. Mycobacterium tuberculosis. d. Chdiak-Higashi syndrome caused by deficiency of CHS1 The KaK_aKa of nitrous acid, HNO2HNO_2HNO2, is 6.761046.76 \times 10^{-4}6.76104. - HIV is more lethal. - spreading worldwide. c. Substances can only pass through the membrane with the help of either active or passive transport proteins. Which of the following accurately describe mutagens and their effects? Once the amoeba's pseudopodia completely surrounds the other protozoan, the amoeba's plasma membrane pinches off by folding back into the amoeba and creating a vesicle containing the smaller protozoan. Both membranes are selectively permeable and have pores. Chytridiomycosis (or chytrid fungus) is an ecological disease that affects amphibians and is ______. For some toxic substances, a millionth of a gram (an amount invisible to the naked eye) can be lethal. We assert that combining expertise . f. CD40 ligand. b. Mortality rates are reduced by the administration of antibiotics to affected individuals. - The dose makes the poison. They bind to MHC class I molecules and T-cell receptors. Both bacteria and viruses use host cells to reproduce, but viruses . b. antigenic shift A nonliving complex of RNA or DNA protected by a protein coat Collection, integration, and effective use of clinical data for this purpose presents a variety of specific challenges. c. The saline you used was hypertonic to the RBCs; this resulted in water osmosing through the RBC plasma membrane mostly out of the cell. a. Streptococcus pneumoniae b. it founded the plymouth colony under a proprietary governor. 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 ______. Drowning 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. is an emerging discipline that seeks to understand how environmental changes threaten our health and the environment itself. This vesicle is now within the amoeba itself and will soon fuse with other vesicles containing digestive enzymes. f. It is able to render target cells responsive even if they express only one functional allele of IFNR1. The World Health Organization's definition of health includes ______ wellbeing. b) enter a replicative cycle that kills the host cell. b. a worker in a factory who places labels on products and then packs them into a shipping box d. carbohydrates. Eradication of diseases such as polio or smallpox. 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. a. C1INH Asbestos exposure and smoking each increase lung cancer rates 20-fold. DDT is a well-known case of biomagnification in the environment. 3. Biology Semester 1 Review | Biology Quiz - Quizizz What is the most likely reason for the disagreement? Q: Discuss the following statement: "Viruses exist in the twilight zone of life: outside cells they are. Treat the sample with proteases that digest all proteins and then determine whether it is still infectious. Multiple Choice Question on Diabetes Mellitus: Pathogenesis, Diagnosis Question: You have to implement the following methods on the described scenario. Potential routes of exposure to toxins in the environment. b. sodium ions (Na+), hydrogen ions (H+), sugars, and amino acids d. eukaryotic cells . Deriving social determinants of health from underserved populations is an important step in the process of improving the well-being of these populations and in driving policy improvements to facilitate positive change in health outcomes. Which of the following statements correctly describes how factors related to the individual influence how she or he responds to toxins in the environment? 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. What do viruses need to reproduce? b. osmosis. The epidermis layer functions like a covering of skin to protect the leaf while vascular bundles carry water and nutrients through the leaf. 13-22 When deficient, which of the following proteins does not render the individual more susceptible to encapsulated bacteria? 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. Herpes simplex virus infects B lymphocytes. B. . 7. which one of the following statements is most accurate regarding the Viruses Furr | Other Quiz - Quizizz All toxic substances are hazardous, but all hazardous substances are not toxic. It is the major activating cytokine of macrophages. 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. c. variable surface glycoprotein (VSG) e. Janus 3 kinase (Jak3) You are a microbiologist working with a species of bacteria that can perform photosynthesis. - Immunological status affects susceptibility to toxins. 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. c. herpes zoster