Cellulose is present in
(1)cotton fibres
(2)Paper
(3)Cell wall of plants
(4)All of these
Exoskeleton of anthropods possesses chitin which is
1. | A complex polysaccharide |
2. | A polymer of N-acetylglucosamine |
3. | Known for forming complex helices in its secondary structure |
4. | Both (1) & (2) |
Match the following :
Column I | Column II | ||
(a) | Aquaporin | (i) | Amide |
(b) | Asparagine | (ii) | Polysaccharide |
(c) | Abscisic acid | (iii) | Polypeptide |
(d) | Chitin | (iv) | Carotenoids |
Select the correct option :
1. | (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii) |
2. | (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i) |
3. | (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii) |
4. | (a)-(iii), (b)-(i), (c) -(ii), (d)-(iv) |
Read the following and choose the correct option
A: | Chitin is a homopolysaccharide |
B: | Cellulose consists of β -D glucose |
1. | A is correct B is wrong |
2. | A is wrong, B is correct |
3. | Both A and B are correct |
4. | Both A and B are wrong |
Select the incorrect statement.
1. | Dietary proteins are the source of essential amino-acids. |
2. | Concanavalin A is a lectin and is considered a secondary metabolite |
3. | Cellulose, inulin, starch and glycogen are homopolymers of glucose |
4. | Phosphodiester bonds are a characteristic feature of both RNA and DNA |