Georgia Military College BIO 123 Basic Chemistry of Cells Quiz. Grade 9.33 out of 10.00 (93%)

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Home / My courses / 19WNCMP BIO-123-20103 / Week 1 / Basic Chemistry of Cells Quiz Started on Sunday, January 20, 2019, 2H06 AM State Finished Completed on Sunday, January 20, 2019, 2H27 AM Time t... aken 20 mins 48 secs Marks 14.00/15.00 Grade 9.33 out of 10.00 (93%) Question 1 Question 2 What term describes the tendency of water molecules to adhere to the wall of a blood vessel? Select one: a. hydrophobicity b. buffering c. cohesion d. adhesion ! e. electronegativity What is the total number of electrons in a neutral atom of phosphorus with an atomic number of 15 and a mass number of 31? Select one: a. 16 b. 15 ! c. 31 d. 8 e. 46 http://gmc.mrooms3.net/mod/quiz/review.php?attempt=2053480&cmid=3004655 3/11/19, 4E24 PM Page 1 of 7 Question 3 Question 4 In Mark 0.00 out of 1.00 Question 5 Which of the following is the description for the structure of an atom? Select one: a. Positive protons and negative electrons in the nucleus are surrounded by neutral neutrons b. Neutral protons and negative neutrons in the nucleus are surrounded by positive electrons c. Positive protons and neutral neutrons in the nucleus are surrounded by negative electrons ! d. Negative protons and positive neutrons in the nucleus are surrounded by neutral electrons e. Positive protons and negative neutrons in the nucleus are surrounded by neutral electrons Water molecules disassociate _ (blank) _ in salt crystals when they are dissolved in water. Select one: a. nonpolar covalent bonds b. hydrogen bonds c. polar covalent bonds " d. ionic bonds e. hydrophobic interactions Which of the following is the largest number describing an atom? Select one: a. Electron number b. Neutron number http://gmc.mrooms3.net/mod/quiz/review.php?attempt=2053480&cmid=3004655 3/11/19, 4E24 PM Page 2 of 7 Question 6 Question 7 Question 8 b. Neutron number c. Atomic number d. Proton number e. Mass number ! If a sulfur atom has 6 electrons in the outermost shell, how will it likely react? Select one: a. gain two electrons from another atom ! b. lose 6 neutrons to another atom c. nothing, as this is a very stable atom d. lose two electrons to another atom e. stay as a single atom in nature Each of the following is a use of water by living organisms except _ (blank) _. Select one: a. external transportation for chemicals b. help exchange heat c. aids in homeostasis d. provides nutrients for metabolism ! e. provides a medium for movement http://gmc.mrooms3.net/mod/quiz/review.php?attempt=2053480&cmid=3004655 3/11/19, 4E24 PM Page 3 of 7 Question 9 Question 10 What is the term for the number of protons found in an atom? Select one: a. electron number b. isotope number c. neutron number d. atomic number ! e. atomic mass What diagnostic procedure could be done in order to determine if a patient has a thyroid tumor? Select one: a. Patient drinks low levels of radioactive Iodine-131, then has an X-ray ! b. Patient drinks high levels of radioactive Iodine-131, then has a PET scan c. Injection of low levels of radioactive glucose, then patient has a PET scan d. Injection of low levels of radioactive Thallium-201, then patient has a PET scan e. Injection of high levels of radioactive glucose, then patient has an X-ray What are the six elements that make up living organisms? Select one: a. carbon, hydrogen, nitrogen, oxygen, phosphorus, sulfur ! b. copper, iron, magnesium, sodium, water, zinc c. carbon dioxide, hydrogen, nitrogen, oxygen, phosphate, sulfate d. calcium, hydrogen, iron, potassium, sulfur, water e. aluminum, magnesium, nitrogen, silicon, sodium, sulfur http://gmc.mrooms3.net/mod/quiz/review.php?attempt=2053480&cmid=3004655 3/11/19, 4E24 PM Page 4 of 7 Question 11 Question 12 Question 13 Which of the following has a positive charge? Select one: a. proton ! b. electron c. atomic mass d. neutron e. isotope Ions located in bones and teeth that are also important in muscle contractions and nerve conduction are _ (blank) _. Select one: a. sodium b. chloride c. bicarbonate d. potassium e. calcium ! _ (blank) _ is an atom with an unequal number of protons and electrons. Select one: http://gmc.mrooms3.net/mod/quiz/review.php?attempt=2053480&cmid=3004655 3/11/19, 4E24 PM Page 5 of 7 Question 14 Question 15 Select one: a. An isotope b. An ion ! c. A compound d. An octet e. A valance Which of the following can be used to identify an atom? Select one: a. number of electrons b. atomic charge c. atomic mass d. number of protons ! e. number of neutrons What is the benefit of low levels of radioactive isotopes in a medicinal setting? Select one: a. as tracers in imaging organs using Xrays and PET Scans ! b. to reduce obesity and diabetes in teenagers c. to create drugs that work faster than normal d. to destroy aging and unwanted cells e. to prevent ultraviolet damage from the sun [Show More]

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