WorksheetsLesson (4) Proteins
Total questions: 10
Worksheet time: 5mins
1) Which describes the functions of proteins in living things?
structural, transport, defense, catalysts, etc.
stores energy and makes up cell membranes
stores and transmits genetic information
quick energy and forming cell structure
2) Proteins are polymers of __________.
Fatty acids
Amino acids
monosaccharides
nucleotides
3) All proteins................
are exactly the same in structure but different in function.
are exactly the same in function but different in structure.
have a unique structure that determines their unique function.
are enzymes.
4) What is the function of enzymes in living things?
form the basis of the plasma membrane
insulation and protection
main energy molecule for a cell
increase the rate of chemical reactions
5) How many different amino acids are there?
15
20
30
100
6) The diagram shows the structure of an amino acid. What is the best statement that can describe the ( R) Group?
Variable groups are essential because their properties determine protein structure and function.
They are always non-polar groups
They are the same in all amino acids
They are always polar
7) Proteins can act as chemical messengers:
Antibodies
Hormones
Keratin
myosin
8) Proteins can be used for structure in your skin and hair.
Keratin
Collagen
myosin
hormones
9) The amino acids consist of R group, ...................... and ........................
carbonyl group and amino group
carboxyl group and amin group
carboxyl group and amino group
hydroxyl group and amino group
10) Amino acids are linked by ................ reaction and a water molecule is released.
hydrolysis
hydrogenation
dehydration
nothing applies
