Question Bank
NIPER JEE Exam - English
Duration: 120 · Questions: 200 · Max Marks: 200 · Language: 1
NIPER JEE
1
Secondary metabolites are primarily used by plants for:
2
Which of the following is a secondary metabolite?
3
Alkaloids are primarily composed of which element?
4
Vincristine is obtained from:
5
Terpenoids are synthesized via which pathway?
6
Which of the following is NOT a secondary metabolite?
7
Paclitaxel (Taxol) is used mainly as:
8
The primary role of tannins in plants is to:
9
Reserpine is classified under:
10
Digitalis contains which type of secondary metabolite?
11
The study of chemicals derived from plants is called:
12
Which of the following is a phenolic compound?
13
The color reaction for alkaloid detection is:
14
Glycosides are composed of sugar and:
15
Which technique is commonly used to separate plant metabolites?
16
Flavonoids are derived from which pathway?
17
Saponins are known for their:
18
Anthraquinones are primarily present in:
19
The general test for tannins is:
20
In alkaloid extraction, the pH of the solution is usually:
21
Which of the following is a steroidal saponin?
22
Isoquinoline alkaloids are mainly found in:
23
Alkaloids exhibit which property?
24
Cardiac glycosides mainly affect:
25
Which method is used to determine the structure of natural products?
26
The latex of Papaver somniferum contains:
27
Curcumin is a major active constituent of:
28
Which plant produces quinine?
29
Which class does menthol belong to?
30
Which one is an example of a monoterpenoid?
31
The main function of flavonoids in plants is:
32
Which method is used for the extraction of volatile oils?
33
Which reagent is used to test for saponins?
34
Which of the following is a diterpenoid?
35
Which test is specific for anthraquinone glycosides?
36
Berberine is an example of:
37
Which of the following plant parts is richest in essential oils?
38
The pharmacological action of atropine is:
39
Which plant yields podophyllotoxin?
40
Primary secondary metabolites are produced during which phase of growth?
41
Which of the following is a polyphenol?
42
Dioscorea is a rich source of:
43
Which type of glycoside is found in Senna?
44
Which phytochemical test indicates the presence of steroids?
45
Which among the following plants contains atropine?
46
Alkaloids are generally extracted from plants using:
47
Which plant is the source of guggulsterone?
48
Which plant part of Digitalis is used medicinally?
49
Which class of secondary metabolites does caffeine belong to?
50
Which solvent is most commonly used for extraction of alkaloids from plant material?
51
Soxhlet extraction is mainly used when:
52
Which method is best for extracting thermolabile compounds?
53
Supercritical fluid extraction (SFE) commonly uses which gas?
54
The most suitable method to extract essential oils is:
55
In chromatography, Rf value is the ratio of:
56
The isolation of caffeine from tea leaves is typically done using:
57
Which is not a method of extraction?
58
Which technique uses differences in partition coefficient for separation?
59
Identification of functional groups is mainly done by:
60
Which detector is commonly used in HPLC?
61
Which is NOT a stationary phase in column chromatography?
62
Which method is most suitable for the extraction of volatile natural products?
63
"Crystallization" is primarily used for:
64
NMR spectroscopy provides information about:
65
Liquid-liquid extraction is based on differences in:
66
What is the mobile phase in Thin Layer Chromatography (TLC)?
67
HPTLC stands for:
68
Which solvent system is common in TLC for alkaloid separation?
69
Partition coefficient is defined as the ratio of solute concentration in:
70
Mass spectrometry mainly gives:
71
Solvent system in column chromatography is called:
72
In UV spectroscopy, chromophores absorb:
73
A high Rf value indicates:
74
Terpenes are biosynthesized via which pathway?
75
The shikimic acid pathway leads to the formation of:
76
Which of the following is NOT a product of the mevalonate pathway?
77
Alkaloids are primarily biosynthesized from:
78
Polyketides are biosynthesized by repeated condensation of:
79
Which is an example of a shikimic acid derivative?
80
The precursor of terpenoids is:
81
Which pathway is involved in fatty acid biosynthesis?
82
The polyketide pathway mainly produces:
83
Which biosynthetic pathway leads to the formation of lignin?
84
Cardiac glycosides are derived biosynthetically from:
85
Which amino acid is a precursor for tropane alkaloids?
86
Vinblastine and vincristine are derived from:
87
Which pathway is involved in biosynthesis of anthraquinone glycosides?
88
The starting material for biosynthesis of steroids is:
89
The enzyme that catalyzes the conversion of acetyl-CoA to mevalonate is:
90
Which one of the following is an isoprenoid?
91
Shikimic acid is biosynthesized from:
92
Which is NOT a product of the acetate pathway?
93
Alkaloids commonly contain:
94
Secondary metabolites are mainly involved in:
95
Flavonoids are biosynthesized via:
96
Prostaglandins are derived from:
97
Squalene is a precursor for:
98
Erythromycin is a natural product biosynthesized through the:
99
Which class of natural products is primarily used as analgesics?
100
Morphine belongs to which therapeutic class?
101
Which of the following is a cardiac glycoside?
102
Quinine is obtained from:
103
Which class does Paclitaxel belong to?
104
Which plant-derived product is used for malaria treatment?
105
Vinblastine is classified as:
106
Atropine is used mainly as a:
107
Which natural product acts as an expectorant?
108
Podophyllotoxin is mainly used as a:
109
Curcumin belongs to which therapeutic class?
110
Reserpine is obtained from:
111
Reserpine belongs to which therapeutic class?
112
Sennosides are used as:
113
Which natural product is an effective diuretic?
114
Which of the following alkaloids is used in ophthalmology?
115
Which flavonoid is known for antioxidant activity?
116
Which is an example of a natural antimalarial drug?
117
Etoposide is used primarily as a:
118
The therapeutic application of Rauwolfia alkaloids is in:
119
Catharanthus roseus yields which therapeutic class of products?
120
Which natural product is used for treating constipation?
121
Which is an important antirheumatic drug from natural sources?
122
Aloe vera is primarily used as:
123
Which natural product is used as a bronchodilator?
124
Which class does caffeine belong to?
125
Which glycoside is used for congestive heart failure?
126
Which class of compounds is often associated with anti-inflammatory activity?
127
Strychnine is a potent:
128
Which alkaloid is a potent antiasthmatic agent?
129
Primary metabolites are mainly produced during which phase of microbial growth?
130
Which of the following is NOT a primary metabolite?
131
Primary metabolites are required for:
132
Which is a carbohydrate primary metabolite?
133
Examples of primary metabolites include:
134
Which of the following is a primary metabolite?
135
Amino acids serve as:
136
Which of these is a primary metabolite used industrially?
137
Which is not a characteristic of primary metabolites?
138
Which process primarily yields ethanol as a primary metabolite?
139
Primary metabolites include all EXCEPT:
140
Lactic acid is a:
141
Which is an example of a microbial primary metabolite?
142
Which of the following is not a primary metabolite produced by yeast?
143
The production of alcohol from glucose is an example of:
144
Which vitamin is considered a primary metabolite?
145
Glutamic acid is commercially produced as a:
146
Which sugar is a primary metabolite?
147
Which of the following is essential for energy production and is a primary metabolite?
148
Which metabolite is involved in glycolysis?
149
Which marine organism is the source of the anticancer compound cytarabine?
150
Ecteinascidin- (Trabectedin) is isolated from which marine source?
151
Which class of compounds do bryostatins belong to?
152
Marine natural products are rich sources of which types of chemical structures?
153
Halichondrin B, a marine natural product, is an example of:
154
Which marine organism is a common producer of bioactive terpenoids?
155
What is the main use of cytarabine in therapy?
156
Which of the following is a marine-derived analgesic?
157
Which cone snail toxin is developed into a drug for severe chronic pain?
158
Pseudopterosins are isolated from:
159
Which of the following is a toxin produced by dinoflagellates causing shellfish poisoning?
160
Which marine natural product inhibits protein phosphatases?
161
Which is not a characteristic feature of marine natural products?
162
Marine algae are an important source of:
163
Maitotoxin, one of the largest known non-polymeric natural products, is produced by:
164
Which marine compound is an example of a cytotoxic macrolide?
165
Dolastatin was isolated from which marine animal?
166
Which is the correct therapeutic area for bryostatin-?
167
Manoalide, a marine-derived compound, is known for its:
168
Which sea organism produces didemnins?
169
Which drug is not derived from a marine source?
170
Which class of marine natural products includes omega-conotoxins?
171
Which marine natural product is used for studying calcium channels?
172
Tetrodotoxin is isolated from:
173
Which of the following is true about marine sponges?
174
Which plant hormone promotes seed dormancy?
175
Which plant hormone is primarily responsible for cell elongation?
176
Gibberellins were first discovered in:
177
Ethylene is a plant hormone that is:
178
Which hormone promotes fruit ripening?
179
Cytokinins are primarily involved in:
180
Which plant growth regulator is responsible for phototropism?
181
The natural cytokinin found in coconut milk is:
182
Which plant hormone causes the shedding of leaves?
183
Which plant growth regulator is commonly used for parthenocarpy (seedless fruit production)?
184
Indole--acetic acid (IA) is a type of:
185
Application of which hormone can break seed dormancy?
186
Which hormone is also known as the stress hormone?
187
Which synthetic auxin is widely used as a herbicide?
188
Which hormone delays senescence in plants?
189
"Bolting" in plants is promoted by:
190
Which hormone induces stomatal closure under water stress?
191
Triple response in plants is caused by:
192
Which plant hormone is commercially used to ripen bananas?
193
Which of the following promotes lateral bud growth?
194
Which plant growth regulator is used in tissue culture for callus induction?
195
Which of the following inhibits shoot growth?
196
Application of auxin on one side of a stem leads to:
197
Which plant hormone promotes flowering in pineapple?
198
Which of the following is not a function of gibberellins?
199
In UV-Visible spectroscopy, the max for conjugated dienes generally:
200
NMR spectroscopy mainly involves: