Aerobic respiration produces more usable chemical energy than fermentation, because fermentation involves
(a) formation of lactic acid
(b) complete oxidation of food
(c) partial oxidation of food
(d) evolution of CO2 and alcohol
RQ (Respiratory Quotient) is defined as
The colour in the brown fat is due is
(a) its larger capacity for generating heat
(b) large number of mitochondria present
(c) a high concentration of iron containing cytochrome pigments
(d) presence of chromatophores
What is the correct order of the stages of cellular respiration ?
(a) Krebs' cycle electron- transport- chain glycolysis
(b) Electron transport chain- Krebs' cycle - glycolysis
(c) Glycolysis - Krebs' cycle - electron transport chain
(d) Glycolysis - electron transport chain - Krebs' cycle
Cell respiration is carried out by
(d) Golgi bodies
The process by which ATP is produced in the inner membrane of a mitochondrion. The electron transport system transfers protons from the inner compartment of the outer; as the protons flow back to the inner compartment, the energy of their movement is used to add phosphate to ADP, forming ATP.
Assertion : Aerobic animals are not truely aerobic.
Reason : They produce lactic acid anaerobically.
Concept Questions :-
In which of the following reactions of glycolysis, a molecule of water is removed from the substrate?
(a) Glucose Glucose-6-phosphate
(b) Fructose-6-phosphate Fructose-1,6 bisphosphate
(c) 2-phosphoglycerate Phosphoenol pyruvate
(d) Phosphoenol pyruvate Pyruvate
Which one is correct sequence occuring in glycolysis?
(a) G-6-P PEP 3-PGAL 3-PGA
(b) G-6-P 3-PGAL 3-PGA PEP
(c) G-6-P PEP 3-PGA 3-PGAL
(d) G-6-P 3-PGA 3-PGAL PEP
Which enyme helps in transfer of phosphate group from ATP to carbohydrate?