Introduction to Biochem

Question 1

ammonia is a source of

Answer 1

nitrogen

Question 2

sp3 hybridization geometry

Answer 2

tetrahedral

Question 3

sp2 hybridization geometry

Answer 3

trigonal planar

Question 4

organic elements

Answer 4

H, C, N, O, S

Question 5

bonding in organic chemistry is primarily

Answer 5

covalent

Question 6

macromolecules are always

Answer 6

polymers

Question 7

living things use ______ handed amino acids, and ______ handed sugars

Answer 7

left, right

Question 8

L - amino acids have a ________ configuration

Answer 8

S

Question 9

D - glucose has a ______ configuration

Answer 9

R

Question 10

all amino acids in eukaryotic protein are ____ (L or D)

Answer 10

L - amino acids

Question 11

S configuration =

Answer 11

counter clockwise

Question 12

R configuration =

Answer 12

clockwise

Question 13

proteins start at the ______ terminal

Answer 13

amino (N-)

Question 14

proteins stop at the ______ terminal

Answer 14

carboxyl (C-)

Question 15

nucleic acids are connected through what kind of bond

Answer 15

phosphodiester bonds

Question 16

nucleic acid chains start at _____ and end at _____

Answer 16

5’ , 3’

Question 17

carbohydrates start at the __________ end and stop at the __________ end

Answer 17

nonreducing, reducing

Question 18

R-OH

Answer 18

alcohol, polar

Question 19

R-NH2

Answer 19

amine, basic, accepts H+, donates e-

Question 20

R-COOH

Answer 20

acid, donates H+, accepts e-