Identify the incorrect pair.
1. Lectins - Concanavalin A
2. Drugs - Ricin
3. Alkaloids - Codeine
4. Toxin - Abrin
Following are the statements with reference to 'lipids'.
(a) | Lipids having only single bonds are called unsaturated fatty acids. |
(b) | Lecithin is a phospholipid. |
(c) | Trihydroxy propane is glycerol. |
(d) | Palmitic acid has 20 carbon atoms including carboxyl carbon. |
(e) | Arachidonic acid has 16 carbon atoms. |
You have to choose the correct statements out of the five given above. Choose the correct answer from the options given below:
1. (b) and (c) only
2. (b) and (e) only
3. (a) and (b) only
4. (c) and (d) only
Match List -I with List - II.
List-I | List-II | ||
(a) | Protein | I. | C-C double bonds |
(b) | Unsaturated fatty acid | II. | Phosphodiester bonds |
(c) | Nucleic acid | III. | Glycosidic bonds |
(d) | Polysaccharides | IV. | Peptide bonds |
Choose the correct answer from the options given below:
Options: | (a) | (b) | (c) | (d) |
1. | II | I | IV | III |
2. | IV | III | I | II |
3. | IV | I | II | III |
4. | I | IV | III | II |
Which of the following are not secondary metabolites in plants?
1. Vinblastin, curcumin
2. Rubber, gums
3. Morphine, codeine
4. Amino acids, glucose
Which protein is found in the maximum amount:
1. Catalase
2. Zinc carbonic anhydrase
3. Transferase
4. RUBISCO
Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by -
1. Base-sugar-OH
2. Base-sugar-phosphate
3. Sugar-phosphate
4. (Base-sugar-phosphate)n
Exoskeleton of arthropods is composed of :
1. Glucosamine
2. Cutin
3. Cellulose
4. Chitin
Read the following statements on lipids and find out correct set of statements:
a: | Lecithin found in the plasma membrane is a glycolipid. |
b: | Saturated fatty acids possess one or more c=c bonds. |
c: | Gingely oil has lower melting point, hence remains as oil in winter. |
d: | Lipids are generally insoluble in water but soluble in some organic solvents. |
e: | When fatty acid is esterified with glycerol, monoglycerides are formed. |
Choose the correct answer from the options given below:
1. (a), (b) and (d) only
2. (a), (b) and (c) only
3. (a), (d) and (e) only
4. (c), (d) and (e) only
Given below are two statements:
Statement I: | Cellulose is a polymeric polysaccharide |
Statement II: | The building blocks of cellulose are glucose molecules |
In the light of the above statements , choose the correct answer from the options given below:
1. | Statement I is correct but Statements II is incorrect. |
2. | Statements I is incorrect but Statements II is correct. |
3. | Both Statements I and Statements II are correct. |
4. | Both Statements I and Statements II are false. |
List-I | List-II | ||
(A) | Adenine | (I) | Pigment |
(B) | Anthocyanin | (II) | Polysaccharide |
(C) | Chitin | (III) | Alkaloid |
(D) | Codeine | (IV) | Purine |
(A) | (B) | (C) | (D) | |
1. | (IV) | (I) | (II) | (III) |
2. | (IV) | (III) | (II) | (I) |
3. | (III) | (I) | (IV) | (II) |
4. | (I) | (IV) | (III) | (II) |