week 6

Question 1

peptide bonds join together molecules of ?

Answer 1

amino acids

Question 2

do amino acid differs from another in the nature of the R groups? Y/N

Answer 2

yes

Question 3

glycoproteins & proteoglycans are combinations of proteins and ___ ?

Answer 3

carbohydrates

Question 4

the building blocks for proteins are?

Answer 4

amino acids

Question 5

adjacent amino acids in a polypeptide chain are held together by what bond?

Answer 5

peptide

Question 6

the enzyme lactase catalyses the chemical reaction that changes lactose a-glucose b- glucose/fructose c-fructose/galactose d- glucose/galactose

Answer 6

d

Question 7

functions of proteins a- provide structure for body b-acts as a catalyst for chemical reaction c-provides energy for body d- all

Answer 7

d

Question 8

which level of protein structure refers to the no. and sequence of amino acids

Answer 8

primary

Question 9

what level of protein contains 7 polypeptide chains

Answer 9

quaternary

Question 10

does catalysts lower the activation energy needed for a chemical reaction to occur

Answer 10

yes

Question 11

are enzymes a-biological catalysts b-large proteins c-specific for single substrate d-A/B true e- A/B and C true

Answer 11

e

Question 12

what is not an organic molecule a-ATP b-glucose c-DNA d-enzymes e-O2

Answer 12

e

Question 13

in proteins, the folding of the unit on itself is referred to it __ structure

Answer 13

tertiary

Question 14

___ metals have a toxic effect on the body by denaturing proteins

Answer 14

heavy