Abrin and ricin are classified under which category of secondary metabolites?
1. Alkaloids
2. Drugs
3. Pigments
4. Toxins
Subtopic: Primary & Secondary Metabolites |
85%
From NCERT
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Most structural proteins are
1. Globular
2. Fibrous
3. Both (1) and (2)
4. Left-handedly coiled
1. Globular
2. Fibrous
3. Both (1) and (2)
4. Left-handedly coiled
Subtopic: Proteins |
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Match columns I and II.
Choose the correct option.
1. a(i), b(ii), c(iii), d(iv)
2. a(ii), b(iii), c(iv), d(i)
3. a(iii), b(iv), c(i), d(ii)
4. a(iv), b(i), c(ii), d(iii)
| Column I | Column II | |
| a | Trypsin | Hydrolyeses peptide bond |
| b | Cellulose | Unbranched polymer with -1,4 glycosidic linkages |
| c | Collagen | Most abundant protein in the animal world |
| d | Glut-4 | Enables glucose transport into cells |
1. a(i), b(ii), c(iii), d(iv)
2. a(ii), b(iii), c(iv), d(i)
3. a(iii), b(iv), c(i), d(ii)
4. a(iv), b(i), c(ii), d(iii)
Subtopic: Proteins | Carbohydrates: Starch & Glycogen | Carbohydrates: Cellulose, Chitin, Inulin & Agar |
85%
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Subtopic: Amino Acids |
60%
From NCERT
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Glycogen on hydrolysis yields
1. Glucose and maltose
2. Glucose and fructose
3. Lactose and glucose
4. Only glucose
1. Glucose and maltose
2. Glucose and fructose
3. Lactose and glucose
4. Only glucose
Subtopic: Carbohydrates: Starch & Glycogen |
66%
From NCERT
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Choose the correct Statements.
i. Starch in plants and glycogen in animals are storage molecules
ii. Starch can hold iodine, molecules in its helical loops but cellulose being non-helical cannot hold iodine.
iii. Chitin, a heteropolysaccharide occurring in the exoskeleton of arthropods, consists of N-acetyl glucosamine.
iv. Right end of polysaccharide is called reducing end while left end is called non-acetyl glucosamine.
1. i and ii only
2. ii and iii
3. i, ii and iv
4. iii only
i. Starch in plants and glycogen in animals are storage molecules
ii. Starch can hold iodine, molecules in its helical loops but cellulose being non-helical cannot hold iodine.
iii. Chitin, a heteropolysaccharide occurring in the exoskeleton of arthropods, consists of N-acetyl glucosamine.
iv. Right end of polysaccharide is called reducing end while left end is called non-acetyl glucosamine.
1. i and ii only
2. ii and iii
3. i, ii and iv
4. iii only
Subtopic: Carbohydrates |
55%
From NCERT
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Which one of the following represents a set of homopolymers?
1. Peptidoglycan, glycogen and starch
2. Cellulose, insulin and polypeptides
3. Insulin, chitin and pectin
4. Starch, cellulose and inulin
1. Peptidoglycan, glycogen and starch
2. Cellulose, insulin and polypeptides
3. Insulin, chitin and pectin
4. Starch, cellulose and inulin
Subtopic: Carbohydrates: Cellulose, Chitin, Inulin & Agar |
69%
From NCERT
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Phospholipid lecithin, is made up of
1. Phospholipid acid, three fatty acids and one molecule of glycerol
2. Phospholipid acid with one fatty acid and three molecules of glycerol
3. Phospholipid acid with two fatty acids and one molecule of glycerol
4. One fatty acid and three molecules of glycerols
1. Phospholipid acid, three fatty acids and one molecule of glycerol
2. Phospholipid acid with one fatty acid and three molecules of glycerol
3. Phospholipid acid with two fatty acids and one molecule of glycerol
4. One fatty acid and three molecules of glycerols
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