Q.1
Common respiratory substrate is … .. [ MHTCET 2008]
  • a) Fructose
  • b) Glucose
  • c) Sucrose
  • d) Lactose
Q.2
Phosphoglyceraldehyde is changed to bisphosphoglyceric acid through … .. [ Guj CET 2008]
  • a) Carboxylation and hydration
  • b) Phosphorylation and oxidation
  • c) Decarboxylation and hydrogenation
  • d) Dephosphorylation and dehydrogenation
Q.3
In TCA cycle, conversion of succinyl CoA to succinic acid needs … ..[ W.B. 2007]
  • a) GD + iP
  • b) CoA + GTP + iP
  • c) Acetyl CoA + GDP + iP
  • d) Acetyl CoA + GTP + iP
Q.4
Match the columns … [ kerala 2007]
a) 4C Acetyl CoA
b) 2C Pyruvate
c) 5C Citric acid
d) 3C α –ketoglutaric acid
- -   - - e) Malic acid
  • a) a – 2, b – 5, c – 3, d – 1
  • b) a – 3, b – 1, c – 4, d – 2
  • c) a – 5, b – 1, c – 4, d – 2
  • d) a – 5, b – 3, c – 1, d – 1
Q.5
Aerobic respiration occurs in .. ..[ HPPMT 2005]
  • a) Thylakoid
  • b) Golgi body
  • c) Grana
  • d) Mitochondria
Q.6
Tick the correct statement … ..[ Har PMT 2003]
  • a) Anaerobic grow in absence of oxygen
  • b) Aerophilic can grow in complete absence of oxygen
  • c) Aerobes can grow in absence of oxygen
  • d) Obligate anaerobes can live in presence of abundant oxygen
Q.7
Enzymes of Krebs cycle occur in mitochondrial matrix except one which is attached to inner mitochondrial membrane … [ Odisha 2002]
  • a) Citrate synthetase
  • b) α-keto-glutarate dehydrogenase
  • c) Succinate dehydrogenase
  • d) Malate dehydrogenase
Q.8
Glyceraldehyde 3-phosphate is oxidized to 1-3 bisphosphoglyceric acid along with … .. [ Tamilnadu 2001]
  • a) Release of electrons for reudcing NAD+
  • b) ATP synthesis
  • c) Release of phosphate group
  • d) Release of H+ and e- for forming NADH
Q.9
Pyruvic acid, the last product of glycolysis, is degraded to CO2 and H2 in … ..[ CPMT 2001]
  • a) Cytoplasm
  • b) Inner membrane of mitochondria
  • c) Matrix of mitochondria
  • d) Matrix of chloroplasts
Q.10
Alcoholic fermentation is carried out by … ..[ CBSE 2000]
  • a) Saccharomyces
  • b) lactobacillus
  • c) Clostridium
  • d) Aspergillus
Q.11
Total number of ATP molecules produced per glucose molecule in eukaryotic cell is … ..[ kerala 2001]
  • a) 38
  • b) 36
  • c) 24
  • d) 12
Q.12
Krebs cycle begins with the reaction … ..[ Har PMT 1997]
  • a) OAA + Acetyl CoA
  • b) Citric acid + Acetyl CoA
  • c) OAA + Pyruvic acid
  • d) OAA + Citric acid
Q.13
ETC and TCA enzyme occur in … .. [ JIPMER 1996]
  • a) Ribosomes
  • b) Endoplasmic reticulum
  • c) Mitochondria
  • d) Cytoplasm and nucleus
Q.14
R.Q. for malic acid is .. .. [ RPMT 1996]
  • a) 1.3
  • b) 4
  • c) 0.7
  • d) 1
Q.15
Respiratory substrate yielding maximum number of ATP molecules is .. .. [ CBSE 1994]
  • a) Ketogenic amino acids
  • b) Glucose
  • c) Amylose
  • d) Glycogen
Q.16
Number of carbons in pyruvic acid is … .. [ CPMT 1992]
  • a) 6
  • b) 3
  • c) 2
  • d) 1
Q.17
Oxidative phosphorylation is production of … .. [ CBSE 1992]
  • a) ATP in photosynthesis
  • b) NADH in photosynthesis
  • c) ATP is respiration
  • d) NADH in respiration
Q.18
In germinating Caster seeds, R.Q. is … [ BHU 2003]
  • a) Less than one
  • b) More than one
  • c) One
  • d) Zero
Q.19
In Opunita and other succulents, night time R.Q, is … .. [ KCET 2008]
  • a) One
  • b) More than one
  • c) Zero
  • d) Less than one
Q.20
Fermentation is … ..[ BHU 2008]
  • a) Anaerobic respiration
  • b) Incomplete oxidation of carbohydrates
  • c) Complete oxidation of carbohydrates
  • d) None of the above
Q.21
The number of molecules of pyruvic acid formed from one molecule of glucose at the end of glycolysis … … [MPPMT 1996]
  • a) 1
  • b) 2
  • c) 3
  • d) 4
Q.22
In respiration pyruvic acid is … ..
  • a) Formed only when oxygen is available
  • b) One of the products of Krebs cycle
  • c) Broken down into a two carbon fragment and CO2
  • d) A result of protein breakdown
Q.23
Total gain of energy in anaerobic respiration is … … [ W.B. 2009]
  • a) Two ATP
  • b) One ATP
  • c) Four ATP
  • d) Three ATP
Q.24
In hexose monophosphate shunt, number of molecules of carbon dioxide evolved is … ..[ AIIMS 1991]
  • a) Less than glycolysis
  • b) Much less than glycolysis
  • c) More than glycolysis
  • d) Same as glycolysis
Q.25
Succinate is oxidized to fumarate in Krebs cycle by .. ..[ CPMT 1990]
  • a) Removal of hydrogen
  • b) Loss of electrons
  • c) Addition of oxygen
  • d) Removal of oxygen
Q.26
Glycolysis is part of … … [ AIIMS 1992]
  • a) Only anaerobic respiration
  • b) Krebs cycle
  • c) Only aerobic respiration
  • d) Both aerobic and anaerobic respiration
Q.27
Cytochromes are … .. [ AFMC 1994]
  • a) Electron acceptors
  • b) Protein acceptors
  • c) Oxygen acceptors
  • d) Passage way for carbohydrates
Q.28
Enzymes of oxidative phosphorylation occur in … .. [ RPMT 1995]
  • a) Endoplasmic reticulum
  • b) Chloroplasts
  • c) Mitochondria
  • d) Golgi apparatus
Q.29
Correct sequence in electron acceptor in ATP synthesis is .. … [ BHU 2002]
  • a) Cyt a, a3, b, c
  • b) Cyt b, c, a, a3
  • c) Cyt c, b, a, a3
  • d) Cyt b, c, a3, a
Q.30
In bacteria the site for respiration is … … [ CBSE 1997]
  • a) Cytoplasm
  • b) Mesosomes
  • c) Episome
  • d) Plasmid
0 h : 0 m : 1 s