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Quiz 11
Mdcat-past-papers - UHS - Biology Quiz
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Board: UHS | Subject: Biology |
201. Which of the following is a copper-containing protein in the electron transport chain?
Plastoquinone
Cytochrome-c
Plastocyanin
Ferredoxin
202. Following reaction is: 6CO2 + 6H2O + light energy → C6H12O6 + 6O2 + energy + water
aerobic
Anabolic
photosynthesis
anaerobic
203. When light falls on P-700, which event is likely to occur?
It induces photolysis
Gains hydrogen
Accept electrons
It is oxidized
204. Synthesis of ATP during photosynthesis takes place at the region of?
Stroma
Matrix
Thylakoid
Cisternae
205. Which mechanism would be compromised in the absence of cytochrome complex during light reactions of photosynthesis?
Reduction of reaction center chlorophyll
Photolysis of water
Oxidation of primary electron receptor
Establishment of proton gradient across thylakoid membrane
206. Immediate product formed after CO2 fixation in Calvin cycle is:
Unstable 6-Carbon compound
Unstable 5-Carbon compound
Unstable 4-Carbon compound
Unstable 3-Carbon compound
207. In light-independent stage of photosynthesis, the CO2 combines with ------ to form an unstable 6-Carbon intermediate:
RUBP
Hexose sugar
Glycerate 3-phosphate
Glyceraldehyde-4-phosphate
208. In Calvin cycle CO2 reacts with RUBP to produce ------
3-PGA
6-Carbon unstable intermediate
G3P
1,3 bisphosphoglycerate
209. Light-independent phase of photosynthesis involves:
Formation of energy-rich carbohydrates
ATP generation
Hydrolysis of water
Production of reducing molecules
210. In which part of the chloroplast fixation of carbon dioxide results formation of sugars?
Grana
Stroma
Intergrunum
outer membrane of chloroplast
211. Hexokinase plays a role in:
Glycolysis
Pyruvic acid oxidation
Krebs cycle
Both a & b
212. How many ATPs are required to form glucose molecule?
9
18
36
24
213. Glycolysis is the breakdown of glucose into two molecules of:
Glycerate
Pyruvate
Lactic acid
Succinic acid
214. The terminal electron acceptor in ETC is:
Hydrogen
Iron
Cytochrome
Oxygen
215. Malate is oxidized by ------ to oxaloacetate in Krebs cycle :
ATP
NADP
NAD
FAD
216. The enzymes required in glycolysis are present in:
Cell cytoplasm
Golgi Apparatus
Inner mitochondrial membrane
Matrix of mitochondria
217. In chemiosmosis, the proton (H+) pumps moves from:
Stroma to Lumen
Stroma to cytoplasm
lumen to stroma
Cytoplasm to stroma
218. Each carrier in Electron Transport chain is first -----and then-----.
Broken-down, Regenerate
Generated, Broken down
Oxidized, reduced
Reduced, Oxidized
219. Electron transport chain explains:
Photophosphorylation
Photolysis
Z-Scheme
Mechanism of ATP synthesis
220. What is the number of carbon atoms in pyruvic acid?
2
3
4
5
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