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TEAS 7 SCIENCE EXAM (100 OUT OF 100) Questions and Answer Elaborations
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TEAS 7 SCIENCE EXAM (100 OUT OF 100) Questions and Answer Elaborations
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TEAS 7 SCIENCE EXAM (100 OUT OF 100) Questions and Answer Elaborations carbon has an atomic number of 6. what is true about isot ope c -12 c-12 possesses 6 neutrons and 6protons in its. nucleus 1. Which of the following best describes adaptive immunity? o The body's barrier defences, such as mucous membranes and secretions o The initiation of internal defences, such as phagocytes a nd natural killer cells o The initiation of the inflammatory response A response to specific traits of specific pathogens. a respone to specific traits of specific pathogens 1. Which of the following describes why water has a concave, or downward -curving meniscus when poured in a glass beaker? o Glass has a higher density than water o Water has a higher density than glass o The adhesive forces with the glass are greater than the cohesive forces o The cohesive forces with the glass are greater than the adh esive forces. the adhesive forces with the glass are greater than the cohesive forces 1. The following diagram summaries the carbonic acid -bicarbonate ion buffer system of the blood CO2+H2OH2CO3 HCO3 - +H+ Which of the following equations shows the reaction that takes place when there are excessive H+ ions? o H2CO3 CO2 + H2O o HCO3 - + H+ H2C O3 o CO2 + H2O H2CO3 o H2CO3 HCO3 - +H+ HC03 - + H+ > H2CO3 a student investigating the importance of wavelengths above and below the visible spectrum for photosynthesis sets up an experiment as follows over a 2 month period, all the illumination at. 1 met er distance from plants grown with the same sol and watering conditions at the end of the experiment she finds that the IR treated plants are scorched , the UV treated plants have titled but the white light created plants are growing normally wavelength of lights the only variable that has been changed between groups 1. Which of the following is a property of water? o Water is made up of one molecule of hydrogen and two molecules of oxygen o Water dissolves polar iconic compounds o Water requires less hea t than ethanol to raise its temperature o Solid water is more dense than liquid water Water dissolves polar ionic compounds 1. Lifelong protection after exposure to a virus such as chickenpox is due to which of the following types of immunity? o Nonspeci fic o Innate o Transplantation o Active active 1. Which of the following is an example of active transport? o Aquaporins in kidney cells that help concentrate urine o Movement of substance from an area of high concentration to an area of low concentration o Movement of a sodium and potassium across the cell membrane against their CONCENTRATION GRADIENT. o Loss of water from a cell in a hypertonic solution movement of a sodam and potassium across the cell membrane against there concentration gradient 1. Which of the following body cavities is subdivided into the thoracic and abdominopelvic cavities? o Dorsal o Cranial o Ventral o Vertebral ventral 1. Mutations in wh ich of the following types of cells can be inherited by offspring? o Ovarian o endocrine o neural o muscle ovarian 1. Which of the following pancreatic secretions digests starch into disaccharides o Trypsin o Chymotrypsin o Amylase o lipase amylase 1. A cell is placed in a hypertonic solution. Which of the following describes the resulting osmosis? o There is no flow of water
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