Chitin is a polymer of glucose but a/an ……..is attached to each molecule.
a) carboxyl group
b) hydroxyl group
c) amino group
d) benzyl group
Explanation: amino group = NH2
Which of the following is/are not digestible by human digestive system?
a) chitin
b) glycogen and starch
c) cellulose
d) both a and c
Which of the following is the first and immediate source of energy?
a) carbohydrates
b) proteins
c) nucleic acids
d) lipids
Normally, human blood contains……mg of glucose per 100 ml of blood.
a) 50
b) 100
c) 200
d) 400
Which of the following polysaccharide/s is/are stored as food reserve for future use?
a) chitin
b) glycogen and starch
c) cellulose
d) both a and c
Explanation: glycogen in animals and starch in plants
Which of the following polysaccharides is/are play structural roles?
a) chitin
b) glycogen and starch
c) cellulose
d) both a and c
Explanation: cellulose in plants and chitin in arthropods
