BSC 2087 - Human Anatomy and Physiology » Spring 2022 » Test Yourself 2

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Question #1
Riding a bicycle is an example of
A.   Potential energy
B.   Kinetic energy
C.   Chemical change
D.   Physical change
Question #2
What is an element?
A.   A combination of substances in a definite proportion by weight
B.   An organic compound
C.   A substance that can neither be created nor destroyed by ordinary chemical means
D.   Anything that has weight and occupies space
Question #3
Which of the following has a positive or negative charge?
A.   Hydrogen bond
B.   Ionic bond
C.   Covalent bond
D.   Molecule
Question #4
What element is always present in an organic compound?
A.   Glucose
B.   Oxygen
C.   Carbon
D.   Hydrogen
Question #5
What are amino acids?
A.   Complex chains of glucose molecules
B.   The building blocks of DNA and RNA
C.   Components of the essential steroid hormones
D.   Molecular units that work together to build proteins in the body
Question #6
Which of the following is not a function of enzymes?
A.   Provide insulation
B.   Provide energy for the cell
C.   Control most cell processes
D.   Assist in the production of new cell parts
Question #7
What is an acid?
A.   A substance that when dissolved in water iodizes into negatively charged hydroxide ions.
B.   An organic compound containing carbon, oxygen, hydrogen, nitrogen, and phosphorous.
C.   A substance that maintains a balanced pH.
D.   A substance that when dissolved in water iodizes into positively charged hydrogen ions.
Question #8
Which substance acts as a buffer in many organisms?
A.   Mg(OH)2
B.   HCl
C.   NaHCO3
D.   H2CO3
Question #9
What is the fluid between tissues referred to as?
A.   Interstitial
B.   Extracellular
C.   Intracellular
D.   Buffer
Question #10
What is the pH of gastric juices found in the stomach?
A.   2.0
B.   11.0
C.   6.6
D.   7.4

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