Which one of the following carbohydrates is a heteropolysaccharide?
Important Questions on Biomolecules
Match List - I with List- II.
| Column-I | Column-II | ||
| (a) | Protein | (i) | double bonds |
| (b) | Unsaturated fatty acid | (ii) | Phosphodiester bonds |
| (c) | Nucleic acid | (iii) | Glycosidic bonds |
| (d) | Polysaccharide | (iv) | Peptide bonds |
| List- (Biological Molecules) |
List- (Biological functions) |
||
| (a) | Glycogen | (i) | Hormone |
| (b) | Globulin | (ii) | Biocatalyst |
| (c) | Steroids | (iii) | Antibody |
| (d) | Thrombin | (iv) | Storage product |
Choose the correct answer from the options given below:
Select the false statement ?
(i) Living process is a constant effort falling into equilibrium
(ii) Energy can enter and leave a cell
(iii) Matter can enter and leave a cell
(iv) Metabolic pathways are interlinked
Read the following statements on lipids and find out the correct set of statements:
(a) Lecithin found in the plasma membrane is a glycolipid.
(b) Saturated fatty acids possess one or more bonds.
(c) Gingelly oil has a lower melting point, and hence remains as oil in winter.
(d) Lipids are generally insoluble in water but soluble in some organic solvents.
(e) When a fatty acid is esterified with gIycerol, monoglycerides are formed.
Choose the correct answer from the options given below:
Secondary metabolites do not have identifiable physiological processes in plants, fungal and microbial cells
Bio macromolecules are acid insoluble organic compounds with mol wt more than daltons
Uridylic acid and cytidylic acids are derived from uracil and cytosine by esterification
Lecithin and lectin are phospholipids found in cell membrane
Study the given statements and select the correct option?
(i) Carbohydrates, proteins, nucleic acids and lipids are primary metabolites
(ii) Alkaloids, flavonoids, rubber etc; are secondary metabolites
(iii) Linoleic, linolenic and palmitic acids are the three essential fatty acids
| List-I | List-II | List-III | |||
| A | Coenzymes are organic compound | i | No structure similarities | I | Ribose-5 phosphate isomerase |
| B | Isomerases | ii | Differ from inorganic catalysis | II | During catalysis |
| C | Non-competitive enzyme inhibition | iii | Catalyzing interconversion of optical positional isomers | III | Operates at high temperatures also |
| D | Enzyme catalysts | iv | With the apoenzyme only as a transient | IV | Metal ion of copper |
The correct match is:
Identify the labelled parts in the concept of activation energy shown in the below diagram?
Assertion (A): The cellular pool provides all the necessary materials for the structure and functions of a cell
Reason (R): For the survival of a cell steady state within the cell is necessary
