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Quiz 138
Mdcat-past-papers Quiz
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2741. In electron transport chain ultimate electron acceptor is:
NADH
Oxygen
NAD+
Cytochrome complex
2742. During photorespiration, an acid glycolate is formed which is converted into glycine by:
Lysosomes
Peroxisomes
Golgi Complex
vacuole
2743. The only copper containing protein during light reactions of photosynthesis is
Plastoquinone
Cytochrome
Ferredoxin
Plastocyanin
2744. The end product of glycolysis in anaerobic respiration is
Ethanol and Carbon dioxide
Lactate
Pyruvate
Acetyl CoA
2745. 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
2746. What is the number of carbon atoms in pyruvic acid?
2
3
4
5
2747. The production of energy is
Faster in aerobic respiration
Same in both types of respiration
Faster in anaerobic respiration
Not associated with respiration
2748. 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
2749. In Electron transport chain, ATP synthesis takes place when electrons move from:
Primary electron acceptor to plastoquinone
Plastoquinone to cytochrome
Cytochrome to plastocyanin
Plastocyanin to Photosystem-I
2750. Which of following processes does not need Pyruvic acid as a substrate:
Alcoholic fermentation
Aerobic respiration
Calvin cycle
Lactic acid fermentation
2751. The end product of glycolysis in aerobic respiration is;
Ethanol + CO2
Lactate
Pyruvate
Acetyl Co A
2752. In electron transport chain, NADH is oxidized by
Co-enzyme Q
Cytochrome b
cytochrome c
oxygen
2753. Cancer cells require large amount of ATP. WOP component of cellular respiration produce large amount of ATP?
Glycolysis
Krebs cycle
ETC
Oxidative phosphorylation
2754. End product of glycolysis in yeast is
Ethanol and carbon dioxide
Lactate
Pyruvate
Acetyl Co A
2755. If oxygen is available, the complete breakdown of glucose produces——— ATP molecules in prokaryotes:
201
36
38
40
2756. During glycolysis isomerization takes place in the formation of:
Dihydroxyacetone phosphate and 2-phosphoglycerate
G3P and Fructose —6-Phosphate
PEP and pyruvate
Fructose 6 phosphate and 3 phosphoglycerate
2757. Fats and proteins can be used as respiratory fuel. Which of the following serves as common molecule produced through their catabolism?
Acetyl CoA
Pyruvate
G3P
Lactate
2758. Which of following enzyme is released in an inactive form:
Amylase
Enterokinase
Lipase
Pepsin
2759. Which of following hormone stimulates the secretion of pancreatic juice from pancreas:
Secretin
Pepsinogen
Gastrin
Both A and C
2760. During swallowing of food which structure close nasal opening?
Hard palate
Soft palate
Epiglottis
Larynx
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