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Quiz 18
Mdcat-past-papers - DUHS Quiz
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Board: DUHS |
341. Enzyme NADP reductase is responsible for:
Reducing NADP+
Oxidizing NADP+
Reducing ferredoxin
Reducing P700
342. Cyclic phosphorylation is stimulated by:
Low level of NADPH
Low light intensity
High level of NADPH
High light intensity
343. In the non-cyclic electron transport of light reaction, the deficit of electrons occurs in the chlorophyll, as it absorbs energy.
1
2
3
4
344. The process of ATP synthesis through a combination of electrochemical and osmotic events is known as:
Fermentation
Gratum
Glycolysis
Oxidative phosphorylation
345. Which step of photosynthesis uses molecular oxygen?
Dark reactions
light reactions
Krebs cycle
oxidative phosphorylation
346. In the process of photosynthesis, water acts as:
Electron donor
CO2 reducer
Proton acceptor
CO2 acceptor
347. Which of the following molecules are released after completion of the light reaction and utilized in the dark reaction of photosynthesis?
ATP and NADPH
ADP and NADP
ATP and NADP
ADP and NADPH
348. End Product of Calvin cycle is:
3-phosphoglycerate
1-3 bisphosphoglycerate
Glyceraldehyde 3 phosphate
Glucose
349. One molecule of FADH2 is produced in Krebs cycle during conversion of:
Fumarate to Malate
Succinate to fumarate
Malate-Oxaloacetate
alpha-ketoglutarate-succinate
350. Every molecule of NADH,fed into ETC produces:
2 ATP
3 ATP
4 ATP
6 ATP
351. Oxidative phase of glycolysis starts with dehydrogenation of:
Glucose
R1,5BUP
G3P
NADH
352. In glycolysis, glycerate-1,3-bisphosphate in converted into glycerate-3-phosphate by losing phosphate molecule:
3
2
1
4
353. Glycolysis takes place in the ----- of cell:
Golgi complex
Nucleus
Cytoplasm
Mitochondria
354. What is the end product of glucose by yeast in anaerobic respiration?
Ethanol & oxygen
Ethanol & water
Ethanol & CO2
Lactic acid & CO2
355. Which of the following is used in baking?
aerobic respiration
External respiration
anaerobic respiration
Internal respiration
356. In aerobic respiration glucose molecule is completely broken down into carbon dioxide (CO2), water and ——— energy. 6C6H12O6 + 6O2 → 6CO2 + 6H2O = ——— ATP
2ATP
4ATP
34ATP
36ATP
357. The pathway to the breakdown of glucose, carried out by micro-organisms, is called
Cellular respiration
Lactic acid fermentation
Alcoholic fermentation
None of the above
358. Which of following processes does not need Pyruvic acid as a substrate:
Alcoholic fermentation
Aerobic respiration
Calvin cycle
Lactic acid fermentation
359. Which of following hormone stimulates the secretion of pancreatic juice from pancreas:
Secretin
Pepsinogen
Gastrin
Both A and C
360. Digestion ___ starts in oral cavity due to the action of enzyme present in the saliva:
Starch
Cellulose
Fatty acids
Poly-peptides
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