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

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