1.
Biomolecules are
(a) inorganic materials
(b) organic materials
(c) all the carbon compounds obtained from the living tissue
(d) only DNA and RNA
2.The R-group in proteinaceous amino acid makes them different. Name the amino acids A-C correctly
according to the R groups given in each structure.
(a) A–Glycine, B–Serine, C–Alanine
(b) A–Alanine, B–Glycine, C–Serine
(c) A–Serine, B–Glycine, C–Alanine
(d) A–Serine, B–Alanine, C–Glycine
3.Arachidonic acid and palmitic acid have…… and …… carbon atoms, respectively including the carboxyl carbon.
Complete the given statement by filling the most appropriate option in the blank.
(a) 20, 16
(b) 22, 15
(c) 21, 4
(d) 23, 10
4.Which of the following organic compounds is the main constituent of lecithin?
(a) Arachidonic acid
(b) Phospholipid
(c) Cholesterol
(d)None of these
5.Identify, in which of the following carbon compounds, heterocyclic rings can be found?
(a) Proteins
(b) Amino acids
(c) Nitrogen bases
(d) Lipids
6.Which one is false about the diagram?
(a) It is an adenylic acid
(b) It is an adenosine
(c) It will form adenylic acid if it binds with phosphate
(d) It is a nucleoside
7.A is-
(a) Glycosidic bond
(b) Phosphate bond
(c) Ester bond
(d) Ionic bond
8.Plants produce an enormous diversity of substances that have no apparent roles in growth and developmen·: cesses are
classified under the heading of-
(a) Primary metabolites
(b) Secondary metabolites
(c) Necessary metabolites
(d) Tertiary metabolites
9.Which one is secondary metabolite -
(a) Amino acid
(b) Lipid
(c) Alkaloid
(d) Protein
10.Which of the following statements is false?
(a) The study of plant secondary metabolites has many practical application
(b) Some secondary metabolites have ecological importance
(c) The types of secondary metabolites in animal cells are more than that in plant cells
(d) Secondary metabolites are found in fungi, microbes and plants
11.Which one of the following is not a polymeric substance?
(a) Rubber
(b) Morphine
(c) Gum
(d) Cellulose
12.Which of the following secondary metabolites are used as drugs?
(a) Abrin and Ricin
(b) Vinblastin and Curcumin
(c)Anthocyanine
(d) Ricin and Glucosinolates
13.Which one is the secondary metabolites?
(a) Lemon oil grass
(b) Sucrose
(c) Maltose
(d)Amino acid
14.Which one(s) is (are) secondary metabolites?
(a) Flavonoids and Rubber
(b) Antibiotics and coloured pigments
(c) Scents, gums, spices
(d)All
15.Three important polysaccharides made up of glucose monomers are -
(a) Starch, Glycogen, Cellulose
(b) Chitin, Glycogen, Starch
(c) Sucrose, Lactose. maltose
(d) RNA, DNA, Starch
16.Which one is homopolymer?
(a) Starch, Cellulose, Glycogen and lnulin
(b) Insulin, Chitin, Pectin
(c) Cellulose, Insulin, Polypeptide
(d) Protein, Lipid and polysaccharide
17. In animals, glucose is stored as ____ while in plants stored as ____
(a) Cellulose, starch
(b) Starch, glycogen
(c) Cellulose, glycogen
(d) Glycogen, Starch
18. Cellulose is found in -
(a) Cell wall plant
(b) Paper
(c) Cotton
(d)All
1.(c)
2.(b)
3.(a)
4.(b)
5.(c)
6.(a)
7.(c)
8.(b)
9.(c)
10.(c)
11.(b)
12.(b)
13.(a)
14.(d)
15.(c)
16.(a)
17.(d)
18.(d)
