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.   Physical change
B.   Kinetic energy
C.   Potential energy
D.   Chemical change
Question #2
What is an element?
A.   A combination of substances in a definite proportion by weight
B.   Anything that has weight and occupies space
C.   An organic compound
D.   A substance that can neither be created nor destroyed by ordinary chemical means
Question #3
Which of the following has a positive or negative charge?
A.   Covalent bond
B.   Ionic bond
C.   Hydrogen bond
D.   Molecule
Question #4
What element is always present in an organic compound?
A.   Oxygen
B.   Glucose
C.   Hydrogen
D.   Carbon
Question #5
What are amino acids?
A.   Complex chains of glucose molecules
B.   Components of the essential steroid hormones
C.   The building blocks of DNA and RNA
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 energy for the cell
B.   Control most cell processes
C.   Provide insulation
D.   Assist in the production of new cell parts
Question #7
What is an acid?
A.   A substance that maintains a balanced pH.
B.   A substance that when dissolved in water iodizes into negatively charged hydroxide ions.
C.   A substance that when dissolved in water iodizes into positively charged hydrogen ions.
D.   An organic compound containing carbon, oxygen, hydrogen, nitrogen, and phosphorous.
Question #8
Which substance acts as a buffer in many organisms?
A.   HCl
B.   NaHCO3
C.   Mg(OH)2
D.   H2CO3
Question #9
What is the fluid between tissues referred to as?
A.   Extracellular
B.   Buffer
C.   Intracellular
D.   Interstitial
Question #10
What is the pH of gastric juices found in the stomach?
A.   7.4
B.   2.0
C.   6.6
D.   11.0

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