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Quiz 9
Mdcat-past-papers - BUMHS Quiz
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Board: BUMHS |
161. Which option is correct about a chlorophyll molecule?
Chemical formula C55H72O5N4Mg
Methyl group on second pyrrole ring
Porphyrin ring with nitrogen in centre
Aldehyde group on second pyrrole ring
162. Anaerobic respiration as compared to aerobic respiration produces:
Less ATPs
More ATPs
Equal ATPs
Does not produce ATP
163. Ubiquinone contains:
Iron chloride
Iron sulphate
Iron
Iron phosphate
164. Chlorophyll and accessory pigment absorb light and transfer the energy that initiates the light reactions. What is the order of energy transfer:
Carotenoids - Chlorophyll b - Chlorophyll a
Chlorophyll II a - carotenoids - chlorophyll II b - chlorophyll I
Chlorophyll a - chlorophyll b - carotenoids - chlorophyll a
Carotenoids - chlorophyll a - chlorophyll b - chlorophyll a
165. The carotenoids absorb light in the visible spectrum between -------- and -------- wavelengths.
400-600nm
630-700nm
620-700nm
500-600nm
166. Cyclic phosphorylation uses:
PSI
PSII
uses both photosystems
uses none of the above
167. #NAME?
Thylakoid membrane
Thylakoid space
Stroma
Grana
168. Which of following photo-system is involved in cyclic photophosphorylation?
PS-I and PS-II
PS-II
PS-III
PS-I
169. In the journey of electrons from photosystem II to photosystem I plastocyanin is reduced by:
Plastoquinone
Cytochrome complex
P700
Primary electron acceptor of PS-I
170. ATP is best defined as:
ATP
The molecule that has no role in muscle contraction
The molecule that releases energy when phosphate molecule is added
The molecule that is only present inside the nucleus
171. During the light-dependent phase of photosynthesis, the water molecule is broken down into:
2H2e and 1/2O2
2H, 2e and 2O
4H, 4e and 2O
4H, 2e and 4O
172. Photophosphorylation takes place in the of chloroplast:
Stroma
Granum
Inner membrane
Outer membrane
173. Oxygen released during photosynthesis comes from:
CO2
SO2
H2O
Glucose
174. What are the products of light-dependent reactions of photosynthesis?
ATP, RuBP, and reduced NAD
GP, Oxygen, and reduced NAD
ATP, Oxygen, and reduced NADP
GP, reduced NADP, and RuBP
175. Which of the following is the stage of cellular respiration for which oxygen is not essential:
Glycolysis
Pyruvate oxidation
Krebs cycle
Electron transport chain
176. The enzyme which is used in Calvin cycle is:
Oxidase
Reductase
Isomerase
Rubisco
177. What is the function of Ribulose?
Intermediate in photosynthesis
Intermediate in cellular respiration
Component of DNA and RNA
Component of cell wall
178. FADH2 is formed in:
Glycolysis
Pyruvic acid oxidation
Krebs cycle
form in all
179. Before entering Krebs cycle, the pyruvate is first decarboxylated and oxidized into:
Alpha ketoglutaric acid
Glyceric acid
Citric acid
Acetic acid
180. The end product of anaerobic respiration in humans and other mammals is:
Pyruvic acid
Ethanol
Lactic acid
Glucose
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