BIOLOGY 1301 EXAM 1 QUESTIONS AND VERIFIED ANSWERS

The unequal sharing of electrons within a water molecule makes the water molecule
_____.
a) ionic
b) polar
c) hydrophobic
d) have low surface tension
e) change easily from a liquid to a gaseous form


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, b) polar




Which polymers are composed of amino acids?
a) monomers
b) proteins
c) nucleic acids
d) carbohydrates


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b) proteins




Changing the number of ____ would change an atom into an atom of a different
element.
a) neutrons in an atom
b) bonds formed by an atom
c) protons in an atom
d) particles in the nucleus of an atom
e) electrons circling the nucleus


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c) protons in an atom




Fluorine's atomic number is 9 and its atomic mass is 19. How many neutrons does
fluorine have?
a) 81
b) 10
c) 9

, d) 19
e) 28


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b) 10




Which complex carbohydrate contains only a-1,4-glycosidic linkages?
a) glycogen
b) amylopectin
c) cellulose
d) amylose


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d) amylose




An organ, such as the liver, is composed of _____.
a) organs
b) populations
c) communities
d) tissues


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d) tissues




Which of these is an organ system?
a) stomach