MCB 450 Exam 1 UIUC UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

MCB 450 Exam 1 UIUC UPDATED
ACTUAL QUESTIONS AND CORRECT
ANSWERS
Cell - CORRECT ANSWER the basic unit of life



Elements of life - CORRECT ANSWER Hydrogen, Oxygen, Carbon, Phosphorous, Nitrogen,
and sulfur



Single bonds - CORRECT ANSWER bonds that can rotate



Double bonds - CORRECT ANSWER bonds that cannot rotate



Single bond length - CORRECT ANSWER 1.54 A



Double bond length - CORRECT ANSWER 1.34 A



Stereoisomers - CORRECT ANSWER molecules with the same chemical bonds but different
configuration



Geometric isomers - CORRECT ANSWER cis and trans isomers



Chiral molecules - CORRECT ANSWER molecules that cannot be superimposed



Achiral molecule - CORRECT ANSWER molecules that can be superimposed



Enantiomers - CORRECT ANSWER molecules that are non-superimposable (D and L amino
acids/ carbohydrates)



Living amino acids - CORRECT ANSWER L-amino acids