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BIO101 HUMAN A&P

BIO101 PRACTICE CH 2

QuestionAnswer
BIO101 HUMAN A&P PRACTICE CH 2
If a solution has a high concentration of OH- ions, what type of solution is it? a. base b. acid c. neutral d. potion base
DNA and RNA differ in that: a. RNA is double-stranded & DNA is single-stranded. b. RNA has deoxyribose & DNA has ribose. c. DNA holds genetic info & RNA uses that info to synthesize protein. d. RNA is only in the nucleus & DNA is only in cytopla DNA holds genetic info & RNA uses that info to synthesize protein.
The attraction between a cation and an anion which forms a very strong bond between the ions is called a covalent bond. TRUE or FALSE FALSE
The atomic number of an atom equals the number of ___, and the atomic weight equals the ___. a. protons; # of protons + neutrons b. neutrons; # of protons + electrons c. protons; weight of all electrons d. neutrons; # of protons protons; # of protons + neutrons
Ionic bonds are formed when electrons are transferred from one atom to another. TRUE or FALSE TRUE
Which of the following carries a positive charge? a. neutron b. isotope c. proton d. electron proton
What is the internal pH range? a. 7.35 - 7.45 b. 7.8 - 8.0 c. 6.0 - 6.5 d. 7.0 - 7.1 7.35 - 7.45
If a solution has a high concentration of H+ ions, what type of solution is it> a. neutral b. alkaline c. acid d. base acid
RNA is double-stranded. TRUE or FALSE FALSE
What are proteins? a. none of these b. chains of lipids c. chains of amino acids d. chains of hydrogen atoms chains of amino acids
What is the structure of DNA? a. double-stranded helix b. triple-stranded c. single-stranded helix d. single-stranded double-stranded helix
Created by: C to the C
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