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
List I | List II | ||
A. | Chitin | I. | Polymer of fructose |
B. | Lecithin | II. | Protein |
C. | Collagen | III. | Polysaccharide |
D. | Inulin | IV. | Phospholipid |
A. | Cellulose and Starch can hold I2 due to formation of helical secondary structures |
B. | Proteins transport nutrient across cell membrane and fight infectious organisms |
C. | At high-temperature, enzymes get damaged while inorganic catalysts work efficiently |
D. | In animal tissue, different drugs, pigments, essential oil, magnesium, O2 compounds are noticed |
E. | DNA and RNA have three chemically distinct components - heterocyclic ring, pentose monosaccharide and phosphate |
Which of the following combination of factors affects enzyme activity?
A. Salinity & pH
B. Temperature
C. Concentration of substrate
D. Temperature & pH
E. pH
Choose the correct answer from the options given below:
1. A only
2. B only
3. C & D only
4. A & B only
List I | List II |
A. Collagen | I. Intercellular ground substances |
B. GLUT- 4 | II. Flights infectious agents |
C. Antibody | III. Sensory reception |
D. Receptor | IV. Enables glucose transport into the cell |
A. | Inulin is a polymer of fructose |
B. | Both starch and glycogen are present as storehouses of energy in plant tissue |
C. | Glucose is a monomer of cellulose |
D. | Cellulose is a homopolymer while chitin is a heteropolymer |
E. | Starch does not contain complex helices and hence cannot hold I2 |