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Oxidative phosphorylation involves simultaneous oxidation and phosphorylation to finally form 
Oxidative phosphorylation is the synthesis of energy rich ATP from ADP and inorganic phosphate, that is connected to oxidation of reduced coenzymes produced in cellular respiration.
Respiratory quotient (R.Q.) for fatty acid is 
Respiratory quotient (R.Q.) is defined as the ratio of the molecules of carbon dioxide given out to the number of oxygen molecules taken in during respiration. Its value for fatty acids is always less than unity.
Which of the following is essential for conversion of pyruvic acid into acetyl Co-A? 
During aerobic oxidation of pyruvic acid, first of all there is activation of pyruvic acid in which NAD and coenzyme react with pyruvic acid and oxidative decarboxylation takes place leading to the formation of acetyl Co-A. In this process, Lipoic acid amide (LAA), thyamine pyrophosphate (TPP) and NAD are essential to perform this reaction.
In animal cells, the first stage of glucose breakdown is 
Glycolysis is the first step of respiration which occurs without requirement of O2 and is common to both aerobic and anaerobic modes of respiration.
Respiratory substrate yielding maximum number of ATP molecule is 
Firstly, amylose and glycogen are converted to glucose. Deamination of ketogenic amino acids occur and these enter respiratory catabolism as intermediates.
Fermentation products of Yeast are [1994, 97]
End products of fermentation are ethyl alcohol, lactic acid and CO2.
ATP is injected in cyanide poisoning because it is
ATP is injected in cyanide poisoning because it is necessary for cellular functions. ATP makes energy available at a spot away from the area of release of energy so it helps in maintaining cellular functions.
Maximum amount of energy/ATP is liberated on oxidation of 
Fats are used as respiratory substrates by a number of organisms because they contain more energy as compared to carbohydrates.
Life without air would be 
In Anaerobic respiration, oxygen is not used in the breakdown of respiratory substrate.
Out of 38 ATP molecules produced per glucose, 32 ATP molecules are formed from NADH/FADH2 in 
Complete degradation of a molecule of glucose yields 38 ATP molecules.
End product of citric acid/Krebs cycle is 
The two molecules of pyruvate are completely degraded in Krebs cycle to form two molecules of ATP, 8 NADH2, 2 FADH2, CO2 and water.
Terminal cytochrome of respiratory chain which donates electrons to oxygen is 
Terminal cytochorome is cyt a3. cyt a3 posseses two copper centers. It helps in transfer of electrons to oxygen.
Apparatus to measure rate of respiration and R.Q. is 
Respirometer is an instrument for measuring respiratory quotient as well as rate of respiration.
When one glucose molecule is completely oxidised, it changes 
Historically it was believed that 38 ATP is produced from 38 ADP. But the current estimate is that about 30 molecules of ATP are formed when glucose is completely oxidised to CO2
Oxidative phosphorylation is production of 
Oxidative phosphorylation is the synthesis of energy rich ATP molecules with the help of energy liberated during oxidation of reduced co-enzymes produced in respiration.
At a temperature above 35ºC 
The optimum temperature of photosynthesis is 10º–25ºC for C3 plants and 30º–45ºC for C4 plants
End products of aerobic respiration are 
Aerobic respiration is an enzymatically controlled release of energy in a stepwise catabolic process of complete oxidation of organic substrate into CO2 and H2O with O2 acting as terminal oxidant.
Out of 36 ATP molecules produced per glucose molecule during respiration 
In glycolysis 2ATP are produced at substrate level and NADP produce 6ATP by ETS and 30ATP in mitochondria so there are only two ATP produced in cytoplasm.
Connecting link between glycolysis and Krebs cycle is/before entering Krebs cycle pyruvate is changed to [1990, 92, 97]
The end product of glycolysis is pyruvate. It enters mitochondria and is oxidatively decarboxylated to acetyl CoA before entering into Krebs cycle.
EMP can produce a total of 
The net gain of energy is equal to 8 ATP in EMP pathway.
R.Q. is ratio of 
Ratio of the volume of CO2 produced to the volume of O2 consumed in respiration over a period of time is known as respiratory quotient.
End product of glycolysis is 
The end product of glycolysis is pyruvic acid which is a three carbon compound.
Incomplete oxidation of glucose into pyruvic acid with several intermediate steps is known as
Glycolysis involves the process of partial oxidation of glucose or similar hexose sugar into two molecules of pyruvic acid through a series of ten enzyme mediated reactions. It occurs in cytoplasm.
NADP+ is reduced to NADPH in 
Complete degradation of a molecule of glucose produces 12 molecules of NADPH2 by HMP (hexose monophosphate).
R.Q. is represented by