Which of the following element/s is/are present in amino acids?
a) Carbon and Hydrogen
b) Oxygen and Nitrogen
c) sometimes Sulphur
d) all of these
How proteins are transported to the cells?
a) directly by blood
b) they are broken into amino acids and then by blood
c) by transport proteins
d) none of these
Essential part of cytoplasm, plasma membrane and organelles are ……
a) carbohydrates
b) proteins
c) lipids
d) water
The major part of muscles, ligaments and tendons are ……
a) carbohydrates
b) proteins
c) lipids
d) water
Mostly enzymes are………in nature.
a) DNA
b) lipids
c) proteins
d) carbohydrates
Proteins can also be used as energy. One gram of protein produces………kcal energy.
a) two
b) three
c) four
d) nine
