MCQOPTIONS
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MCQOPTIONS
This section includes 5751 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1151. |
The photochemical process in photosynthesis which needs both PSI and PSII also involves |
| A. | Photolysis of water |
| B. | Z-scheme of electron transfer |
| C. | Synthesis of assimilatory power |
| D. | All of these |
| Answer» E. | |
| 1152. |
For the process of photosynthesis all except one of the following items are essential. Point out the exception |
| A. | CO2, optimum temperature |
| B. | Glucose and oxygen |
| C. | Water and minerals |
| D. | Light and chlorophyll |
| Answer» C. Water and minerals | |
| 1153. |
Chlorophyll-a differes from chlorophyll-b in having— |
| A. | Methly group instead of aldehyde group |
| B. | Aldehyde group instead of methyl group |
| C. | Methyl group instead of ethyl group |
| D. | Only phytol tail instead of head |
| Answer» B. Aldehyde group instead of methyl group | |
| 1154. |
The prerequisities of Calvins cycle are |
| A. | H2O, CO2, ATP |
| B. | ATP, H2O, NADPH2 |
| C. | CO2, ATP, NADPH2 |
| D. | NADPH2, H2O, CO2 |
| Answer» D. NADPH2, H2O, CO2 | |
| 1155. |
In non-cyclic photophosphorylation |
| A. | ATP is generated |
| B. | Both PSI and PSII are involved |
| C. | Electron flow is unidirectional |
| D. | All the above |
| Answer» E. | |
| 1156. |
Which of the following gas would disappear from the atmosphere if all the photosynthetic activitieswere to stop? |
| A. | Nitrogen |
| B. | Carbondioxide |
| C. | Hydrogen |
| D. | Oxygen |
| Answer» E. | |
| 1157. |
In C4 plants, carboxylation is twice, it can be represented as |
| A. | Pyruvic acid + CO2 and malic acid + CO2 |
| B. | RuBP + CO2 and pyruvic acid + CO2 |
| C. | PEPA + CO2 and RuBP + CO2 |
| D. | PEPA + CO2 and malic acid + CO2 |
| Answer» D. PEPA + CO2 and malic acid + CO2 | |
| 1158. |
Ribbon shaped chloroplast is present in |
| A. | Zygnema |
| B. | Spirogyra |
| C. | Chlorobium |
| D. | Chromatinum |
| Answer» C. Chlorobium | |
| 1159. |
In chrophyll structure Phytol tail is present at |
| A. | 3rd carbon of IInd ring |
| B. | 2nd carbon of IIIrd ring |
| C. | 7th carbon of IVth ring |
| D. | 3rd carbon of IVth ring |
| Answer» D. 3rd carbon of IVth ring | |
| 1160. |
Temperature is very high but a plant is showing photosynthesis with normal rate, probably it would be |
| A. | C3 plant |
| B. | Mango plant |
| C. | Pea plant |
| D. | Sugarcane plant |
| Answer» E. | |
| 1161. |
Loculus is the internal space of |
| A. | Grana |
| B. | Stroma |
| C. | Thylakoid |
| D. | Quantasome |
| Answer» D. Quantasome | |
| 1162. |
What will happen to the rate of photosynthesis if sodium bicarbonate is added in the water having hydrilla plant in a beaker |
| A. | It will remain normal |
| B. | It will be decreased |
| C. | It will be stopped |
| D. | It will be accelerated |
| Answer» E. | |
| 1163. |
Which is sensitive to longer wavelength of light? |
| A. | Photolysi |
| B. | PSI |
| C. | PS II |
| D. | Photophosphorylation |
| Answer» C. PS II | |
| 1164. |
In the calvin cycle, the assimilatory power is used during |
| A. | Formation of PGA |
| B. | Conversion of PGA to PGAL |
| C. | Formation of fructose 1-6 diphsophate from PGAL |
| D. | Formation of glucose from fructose – di- phosphate |
| Answer» C. Formation of fructose 1-6 diphsophate from PGAL | |
| 1165. |
In Calvin cycle, |
| A. | fructose 1,6 diphophate undergoes dephosphorylation. |
| B. | ATP is formed during dephosphoylation of fructose |
| C. | 1,3 di PGA undergo phosphorylation |
| D. | none of these |
| Answer» B. ATP is formed during dephosphoylation of fructose | |
| 1166. |
Quantasome contains |
| A. | 150-200 chlorophyll molecule |
| B. | 200 chlorophyll molecules |
| C. | 230-250 chlorophyll molecules |
| D. | 300-350 chlorophyll molecules |
| Answer» D. 300-350 chlorophyll molecules | |
| 1167. |
Reduction of co-enzyme NADP depends on |
| A. | Reduction of CO2 |
| B. | Evolution of O2 |
| C. | Photolysis of water |
| D. | Formation of ATP |
| Answer» D. Formation of ATP | |
| 1168. |
In con-cyclic photophosphorylation, the electron emitted by P680 is replaced by electron from |
| A. | NADP |
| B. | Water |
| C. | Ferridoxin |
| D. | Chlorophyll-a |
| Answer» C. Ferridoxin | |
| 1169. |
Primary and secondary processes of Photosynthesis takes place in ______ and ______ respectively. |
| A. | Stroma and grana |
| B. | Stroma and lamellae |
| C. | Thylakoid and quantasome |
| D. | Grana and stroma |
| Answer» E. | |
| 1170. |
Calvins cycle involves |
| A. | Oxidative phosphorylation |
| B. | Oxidative carboxylation |
| C. | Reductive carboxylation |
| D. | Reductive phophorylation |
| Answer» D. Reductive phophorylation | |
| 1171. |
Which of the following element is needed for chlorophyll biosynthesis? |
| A. | Copper |
| B. | Magnesium |
| C. | Calcium |
| D. | Chlorine |
| Answer» C. Calcium | |
| 1172. |
Which of the following connet the primary and secondary processes of photosynthesis? |
| A. | NADPH2 |
| B. | ATP and NADPH2 |
| C. | ATP |
| D. | Ferridoxins |
| Answer» C. ATP | |
| 1173. |
Fret channel is a another name for |
| A. | Stroma lamellae |
| B. | Intergranal lamellae |
| C. | Grana lamellae |
| D. | Space present in stroma lamellae |
| Answer» E. | |
| 1174. |
In C3 pathway, out of 12 molecules of 3-PGAL, how many are used for regeneration of RuBP? |
| A. | 12 |
| B. | 8 |
| C. | 10 |
| D. | 6 |
| Answer» D. 6 | |
| 1175. |
For synthesis of one molecule of glucose, the requirement of ATP and NADPH2 is respectively |
| A. | 15 and 10 |
| B. | 12 and 8 |
| C. | 30 and 15 |
| D. | 18 and 12 |
| Answer» E. | |
| 1176. |
Erythrose monophosphate (4C) is formed during |
| A. | CAM pathway |
| B. | C4 pathway |
| C. | Conversion of fructose to glucose |
| D. | Regeneration of RuBP |
| Answer» E. | |
| 1177. |
The numbner of photons needed for the evolution of one molecule of oxygen is |
| A. | 8 |
| B. | 2 |
| C. | 12 |
| D. | 18 |
| Answer» B. 2 | |
| 1178. |
Bundle sheath chloroplast of C4 plants are |
| A. | Large and agranal |
| B. | Large and granal |
| C. | Small and granal |
| D. | Small and agranal |
| Answer» B. Large and granal | |
| 1179. |
A plant is kept in 300 ppm CO2 concentration. What will happen to it |
| A. | Plant will die soon |
| B. | Plant will grow but will not die |
| C. | Plant will show normal photosynthesis |
| D. | Respiration will be greatly decreased |
| Answer» D. Respiration will be greatly decreased | |
| 1180. |
C4 plants can perform photosynthesis |
| A. | Even in low light intensity |
| B. | Even in low CO2 concentration |
| C. | Both (A) and (B) |
| D. | Only in high intensity of light and high CO2 |
| Answer» C. Both (A) and (B) | |
| 1181. |
If a photosynthsing plant releases O18, it is concluded that the plant has been supplied with |
| A. | Water containing O18 |
| B. | Oxygen in the form of ozone |
| C. | Sugar containing O18 |
| D. | Carbon dioxide containing O18 |
| Answer» B. Oxygen in the form of ozone | |
| 1182. |
Unidirectional flow of e- in non-cyclic photophosphorylation is |
| A. | PSII PS-I NADP water |
| B. | Water PS-II PS-I NADP |
| C. | PSI NADP water PS II |
| D. | Water PSI PSII NADP |
| Answer» C. PSI NADP water PS II | |
| 1183. |
_______ are placed one above the other to form stack of coins |
| A. | oxysome |
| B. | F1 particles |
| C. | cristae |
| D. | thylakoids |
| Answer» E. | |
| 1184. |
All plastids have essentially same structure because |
| A. | They have to perform same function |
| B. | They are localized in aerial parts of plants |
| C. | All plastids store starch, lipid and proteins |
| D. | One type of plastid can be differentiated into another type of plastid depending on cell requirements |
| Answer» E. | |
| 1185. |
The two enzymes responsible for primary carboxylation in C3 and C4 pathway, respectively are |
| A. | RuBP carboxylase and RuBP oxygenase |
| B. | PEP carboxylase and RuBP carboxylase |
| C. | RuBP carboxylase and PEP carboxylase |
| D. | PEP carboxylase and pyruvate carboxylase |
| Answer» D. PEP carboxylase and pyruvate carboxylase | |
| 1186. |
Give the correct name of indicated part A and B (CHART) |
| A. | A- cytocrome-a & a3 B -Thylakoid |
| B. | A- Thylakoid B-cytocrome-a & a3 |
| C. | A- cytocrome-b& f B-Thylakoid |
| D. | A- cytopalsm B-Thylakoid |
| Answer» D. A- cytopalsm B-Thylakoid | |
| 1187. |
Donor and acceptor of electrons is the same chlorophyll molecule in |
| A. | Cyclic phtophosphorylation |
| B. | Photorespiration |
| C. | Substrate level phosphorylation |
| D. | Non-cyclic photophosphorylation |
| Answer» B. Photorespiration | |
| 1188. |
The head and tail of chlorophyll are made up of |
| A. | Pyrrole and tetrapyrrole |
| B. | Porphyrine and phyrin |
| C. | Pophyrine and phytol |
| D. | Tetrapyrrole and magnesium |
| Answer» D. Tetrapyrrole and magnesium | |
| 1189. |
In Hill’s experiment, Hill used ______ as oxygen acceptor, |
| A. | Hydrogen |
| B. | FAD |
| C. | NADP |
| D. | Haemoglobin |
| Answer» E. | |
| 1190. |
C40H56O2 is molecular formula of |
| A. | Xanthophyll |
| B. | Carotenes |
| C. | Chlorophylls |
| D. | Phycobillins |
| Answer» B. Carotenes | |
| 1191. |
Which can be used for cryopreservation at 196°C temprature ? |
| A. | liquid N2 |
| B. | Free N2 |
| C. | liquid Co2 |
| D. | Solid N2 |
| Answer» B. Free N2 | |
| 1192. |
How many Indian plant species are used to extract essential oils and scents ? |
| A. | 50 |
| B. | 500 |
| C. | 50,000 |
| D. | 5000 |
| Answer» C. 50,000 | |
| 1193. |
Which is the correct option the Amazon rain forest ? |
| A. | i, ii, iv, v |
| B. | i, ii, iii, iv |
| C. | ii, iii, iv, v |
| D. | iii, v, iv |
| Answer» B. i, ii, iii, iv | |
| 1194. |
Action spectrum is |
| A. | A graph showing amount of light absorbed |
| B. | A graph showing rate of photosynthesis |
| C. | A graph showing absorption of light |
| D. | A graph showing amount of CO2 released |
| Answer» C. A graph showing absorption of light | |
| 1195. |
Biodiversity of which organism is more in Eastern Ghat in comparison to Western Ghat ? |
| A. | Reptilia |
| B. | Amphibian |
| C. | Aves |
| D. | Mammals |
| Answer» C. Aves | |
| 1196. |
Which group is meant for Endemic species of birds ? |
| A. | Nilgiri pipit, Rofous babbler, Lesser-Florican |
| B. | Lesser-Florican, Nilgiri wood pigeon, Malabar parakeet |
| C. | Malabar parakeet, Niligiri pipit, Rofous babbler |
| D. | all the above |
| Answer» B. Lesser-Florican, Nilgiri wood pigeon, Malabar parakeet | |
| 1197. |
How many botanical gardens are registered in IABG ? |
| A. | 1500 |
| B. | 80,000 |
| C. | 800 |
| D. | 900 |
| Answer» D. 900 | |
| 1198. |
Species diversity is responsible for which phenomena ? |
| A. | process of Evolution |
| B. | speciation |
| C. | For alternative types (allele) of gene. |
| D. | For stability and normal function of Ecosystem |
| Answer» E. | |
| 1199. |
Which statement is correct for buffer zone of biosphere reserve ? |
| A. | It is legally protected |
| B. | Authority takes cooperation with local people. |
| C. | Environmental Education is facilitated by this zone. |
| D. | Hunting and felling of trees occur in this zone. |
| Answer» D. Hunting and felling of trees occur in this zone. | |
| 1200. |
Which micro organism is responsible for synthesis of antibiotics ? |
| A. | Bacteria |
| B. | Virus |
| C. | Fungus |
| D. | Algae |
| Answer» D. Algae | |