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SCI 220 WEEK 2 QUIZ

NIGHTINGALE SCI220 ANATOMY WEEK 2 QUIZ

QuestionAnswer
Substances that accept hydrogen ions are called: acids. bases. buffers. salts. bases
When atoms combine, they may gain, lose, or share: electrons. protons. neutrons. nuclei. electrons
The octet rule refers to the: stability of the nucleus when the protons are in a multiple of eight. stability of the atom when there are eight electrons in the outermost energy level. stable configuration of the nucleus when there are eight mor stability of the atom when there are eight electrons in the outermost energy level.
The hydrogen isotope tritium consists of: one proton. one proton and one neutron. two protons and one neutron. one proton and two neutrons. one proton and two neutrons.
A magnesium atom has an atomic number of 12, an atomic mass of 25, and a +2 charge. This atom would contain _____ protons, _____ neutrons, and _____ electrons. 12; 25; 2 12; 13; 14 12; 13; 10 Not enough information is given to answer the qu 12; 13; 10
Carbon has an atomic number of 6. The number of electrons found in the first shell is: two. four. six. eight. two
An isotope of an element contains different numbers of ____ from other atoms of the same element. electrons protons neutrons both protons and neutrons neutrons
An example of a catabolic process is: hydrolysis. dehydration synthesis. formation of a peptide bond. both B and C. hydrolysis
The atomic number of carbon is 6. How many unpaired electrons are in its outer shell? Two Three Four Five four
The study of metabolism includes examination of: catabolism. anabolism. ATP requirements. all of the above. all of the above
An example of an element would be: Ne. CO2. C6H12O6. H2O. Ne
Which of the following bonds are the weakest? Ionic Hydrogen Electrovalent Covalent ` Hydrogen
The approximate pH of gastric fluid is: 10. 8. 4. 2. 2
AB + CD → AD + CB is an example of a(n) _____ reaction. synthesis exchange decomposition reversible exchange
An example of a catabolic process is: hydrolysis. dehydration synthesis. formation of a peptide bond. both B and C. hydrolysis
In the presence of a base, red litmus paper will: stay red. turn blue. turn green. turn yellow. turn blue
Which of the following is not one of the major elements present in the human body? Oxygen Zinc Carbon Potassium Zinc
A negatively charged subatomic particle that moves around the nucleus is a(n): orbital. proton. neutron. electron. electron
Atomic mass is determined by the number of: protons and electrons. neutrons and electrons. neutrons, protons, and electrons. protons and neutrons. protons and neutrons
The process of the digestion of food is an example of which type of reaction? Synthesis Decomposition Exchange Reversible decomposition
The formation of sucrose involves the removal of a molecule of water. This is called: hydrolysis. oxidation. decomposition. dehydration synthesis. dehydration synthesis
The kind of element is determined by the number of: protons. neutrons. mesotrons. electrons. protons
The type of reaction in which substances are combined to form more complex substances is called a(n) _____ reaction. reversible exchange synthesis decomposition synthesis
A solution that contains a greater concentration of hydroxide ions (OH–) than hydrogen ions (H+) is a(n) _____ solution. acidic alkaline (basic) neutral Not enough information is given to determine the character of the solution. alkaline (basic)
The most abundant and important compound(s) in the body is(are): air. water. proteins. nucleic acids. water
The study of metabolism includes examination of: catabolism. anabolism. ATP requirements. all of the above. All of the above catabolism. anabolism. ATP requirements.
Which of the following elements is least likely to combine with another element? Hydrogen Helium Oxygen Carbon Helium
Which of the following represents properties of water? High specific heat High heat of vaporization Strong polarity All of the above High specific heat High heat of vaporization Strong polarity All of the above
As the concentration of hydrogen ions (H+) increases, the: solution becomes more basic. solution becomes more acidic. pH rises. Both A and C are correct. solution becomes more acidic.
Which of the following represents a trace element in the body? Sulfur Chlorine Iron Phosphorus Iron
Created by: majomajo
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