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1 of 25
Q.1 R.Q is ratio of
- CO2 produced to substarate consumed
- CO2 produced to O2 consumed
- oxygen consumed to CO2 produced
- oxygen consumed to water produced
2 of 25
Q.2 Angiosperm pollen is generally released at the
- 1 – celled stage
- 2 – celled stage
- 3 – celled stage
- male gamete formation stage
3 of 25
Q.3 The complete oxidation of pyruvate take place in
- cell cytoplasm
- inner mitochondrial membrane
- mitochondrial matrix
- nucleus
4 of 25
Q.4 Which enzyme catalyses the reaction below? Pyruvic acid → Carbon dioxide + Ethanol
- Pyruvic acid decarboxylase
- Alcohol dehydrogenase
- None of these
- Both of these
5 of 25
Q.5 TCA cycle was discovered by
- Otto Meyerhof
- Hans Kreb
- Gustav Embden
- All of these
6 of 25
Q.6 Which one of the following describes the spikelet of a cereal or grass plant
- inferior ovary
- dehiscent fruit
- pair of glumes
- fused calyx
7 of 25
Q.7 Malacophily means
- pollination by wind
- pollination by water
- pollination by insects
- pollination by snails
8 of 25
Q.8 Herkogamy is a contrivance for
- allogamy
- autogamy
- chasmogamy
- cleistogamy
9 of 25
Q.9 Out of 36 ATP molecules produced per glucose molecule during respiration
- 2 are produced outside glycolysis and 34 during repiratory chain
- 2 are produced outside mitochondria and 34 inside the mitochondria
- all the formed inside mitochondria
- 2 during glycolysis and 34 during kreds cycle
10 of 25
Q.10 Complete the reaction. _________ + O2 → CO2 + _______ + Energy
- C6H12O6, 2H2O
- C12H22O11, 6H2O
- C6H12O6, 6H2O
- C12H22O11, 11H2O
11 of 25
Q.11 The significant morphological feature of passion flower is the presence of
- numerous corolla
- androphore
- gynophore
- androgynophore
12 of 25
Q.12 The final electron acceptor in electron transport chain is
- Cytochrome C
- FADH
- NADH
- oxygen
13 of 25
Q.13 Which of the following acts as mobile carrier for transfer of electrons between complex III and complex IV?
- Cytochrome c
- cytochrome a3
- cytochrome a
- FADH2
14 of 25
Q.14 Aleurone layer takes part in
- protection of delicate embryo
- enzyme synthesis
- transfer of food to cotyledons
- transfer of food from cotyledons to embryo tips
15 of 25
Q.15 A characteristic of drupe is
- fleshy seed coat
- stony pericarp
- stony mesocarp
- stony endocarp
16 of 25
Q.16 Incomplete oxidation of glucose into pyruvic acid with several intermediate steps is know as
- TCA pathway
- Glycolysis
- Hms pathway
- Glycolysis
17 of 25
Q.17 End product of glycolysis is
- acetyl Coenzyme A
- PEP
- pyruvate
- OAA
18 of 25
Q.18 Respiratory enzymes are located in
- mitochondrial matrix
- Cristae
- perimitochondrial space
- outer membrane
19 of 25
Q.19 Respiratory quotient of carbohydrates is
- 0.9
- 1.2
- 1
- 0
20 of 25
Q.20 One molecule of glucose yields ___ ATP molecules in aerobic respiration.
- 2
- 16
- 38
- 42
21 of 25
Q.21 When one glucose molecule is completely oxidised, it changes:
- 36 ADP molecules into 36 ATP molecules
- 38 ADP molecules into 38 ATP molecules
- 30 ADP molecules into 30 ATP molecules
- 32 ADP molecules into 32 ATP molecules
22 of 25
Q.22 Most of the energy of the carbohydrates is released by oxidation when
- Pyruvic acid is converted into CO2 and H2O
- Pyruvic acid is converted into acetyl Co-A
- Sugar is converted into pyruvic acid
- Glucose is converted into alcohol and CO2
23 of 25
Q.23 Acetyl CoA combine with oxalo-acetate in presence of condensing enzyme citrate synthase to form 6-C compound called
- Malic acid
- Tartaric acid
- Pyruvic acid
- Citric acid
24 of 25
Q.24 Number of oxygen atoms required for aerobic oxidation of one pyruvate
- 10
- 8
- 5
- 12
25 of 25
Q.25 Most of the enzymes of the TCA cycle are present in
- Intermembrane space of mitochondria
- Mitochondrial matrix
- Inner membrane of mitochondria
- Cytoplasm