1. Cytology
    2. 1. Tools used in Cytology
    2. Cell Biology
    3. Cell cycle
    4. Biomolecules
  2. Genetics
    3. 5. Introduction
    6. Inheritance
    7. Mutation and Polypoidy
  3. Plant Anatomy
    4. 8. Plant Anatomy
    9.
  4. Plant Physiology
    5. 10. Respiration
    11. Photosynthesis
    12. Growth and Growth hormone
    13. Mode of nutrition and Habitat in Plants
  5. Classification and Biodiversity
    6. 14. Classification
    15. Virus
    16. Bacteria
    17. Thallophyta
    18. Bryophyta
    19. Pteridophyta
    20. Gymnosperm
    21. Reproduction
    22. Morphology of Angiosperm
  6. Taxonomy, Ecology and Application of biology
    7. 23. Taxonomy
    24. Ecology
    25. Application of Biology
Plant Physiology
10. Respiration
1. During anaerobic respiration, Yeast converts glucose into:  [IOM 2004, 2001]

[IOM 2004, 2001]

  • Ethanol and CO_2
  • Lactic acid and CO_2  
  • Pyruvic acid and CO_2
  • Ethanol and water
2. Glycolysis takes place in:
  • Mitochondria
  • Cytoplasm
  • Cell membrane
  • Cell wall
3. Respiration and Photosynthesis both require:  [IOM 2002]

[IOM 2002]

  • Cytochrome
  • Sunlight
  • Oxygen
  • Carbondioxide
4. For anaerobic respiration, respiratory quotient is:  [IOM 1996]

[IOM 1996]

  • Less than 1
  • Equal to 1
  • Greater than 1
  • Infinity
5. Fermentation is an………process:  [IOM 1996]

[IOM 1996]

  • Endothermic
  • Exothermic
  • Both
  • None
6. The common phase between aerobic and anaerobic reaction is:  [BPKIHS 2004]

[BPKIHS 2004]

  • Glycolysis
  • Krebs cycle
  • Oxidative decarboxylation
  • Tricarboxylic acid cycle
7. The following is an example of competitive inhibition of enzyme:  [BPKIHS 2005]

[BPKIHS 2005]

  • Inhibition of cytochrome oxide by cyanide
  • Inhibition of hexokinase by Glucose-6-phosphate
  • Inhibition of succinic dehydrogenase by Malonic acid
  • Inhibition of carbonic anhydrase by CO_2
8. In aerobic respiration, respiratory quotient or respiratory ratio of 1 occurs with: [BPKIHS 2006]

[BPKIHS 2006]

  • Carbohydrate
  • Fats
  • Organic acid
  • Proteins
9. All of the following are features of glycolysis EXCEPT:  [BPKIHS 2006]

[BPKIHS 2006]

  • It takes place in the cytoplasm
  • It is linear pathway
  • It consumes 2 ATP molecules
  • It consists of eight steps
10. Kreb's cycle begins with:  [BPKIHS 2006]

[BPKIHS 2006]

  • Pyruvic acid
  • Glycogen
  • Glucose
  • Lysine
11. The end products of fermentation are:  [BPKIHS 2006]

[BPKIHS 2006]

  • Oxygen + ethyl alcohol
  • Oxygen + Acetaldehyde
  • CO_2  + C_2 H_5 OH 
  • CO_2  + Acetaldehyde
12. When the fats are the respiratory substrate the Respiratory Quotient (R.Q.) will be: [BPKIHS 2007]

[BPKIHS 2007]

  • Unity
  • Less than unity
  • More than unity
  • Zero
13. The end product of Kreb's cycle is:  [BPKIHS 2007]

[BPKIHS 2007]

  • Pyruvic acid
  • Citric acid
  • Lactic acid
  • CO_2  and H_2 O
14. Cyanide kill an organism by inhibiting: [BPKIHS 2007]

[BPKIHS 2007]

  • Hexokinase
  • Cytochrome oxidase
  • Succinate dehydrogenase
  • Histidine decarboxylase
15. The link between glycolysis and Kreb's cycle is: [MOE 2062]

[MOE 2062]

  • Citric acid
  • Acetyl CoA
  • Succinic acid
  • Fumaric acid
16. Number of ATP from complete oxidation of 1 molecule of pyruvic acid is: [MOE 2062]

[MOE 2062]

  • 12
  • 15
  • 24
  • 30
17. Which of the following leads to wastage of energy?  [MOE 2060]

[MOE 2060]

  • Kreb's reaction
  • Photosynthesis
  • Photorespiration
  • Glycolysis
18. Pyruvic acid is
  • CH_3 CH_2 COOH
  • CH_3 COCH_3
  • CH_3 COCOOH
  • CH_3 COCHO 
19. The process in which CO_2 is released is:  [MOE 2060]

[MOE 2060]

  • Respiration
  • Photosynthesis
  • Transpiration
  • Guttation
20. The process in which protoplasm is constructed and destructed: [MOE-2003]

[MOE-2003]

  • Catabolism
  • Anabolism
  • Metabolism
  • None
21. The end product of glycolysis is pyruvic acid having:  [MOE 2058]

[MOE 2058]

  • 1 molecule
  • 2 molecule
  • 3 molecule
  • 4 molecule
22. ATP is not released in:  [MOE 2056, 2055]

[MOE 2056, 2055]

  • Glycolysis
  • Kreb's cycle
  • ETS
  • EMP pathway
23. Aerobic respiration inside the cell occurs in: [MOE 2052]

[MOE 2052]

  • Mitochondria
  • Plastid
  • Golgi-body
  • ER
24. Respiratory opening of the plant is:  [MOE 2052]

[MOE 2052]

  • Tentacle
  • Hydathode
  • Velamen
  • Stomata
25. ADP differs from ATP in having
  • Fewer phosphate groups
  • More phosphate groups
  • Found in eukaryotes
  • All
26. The plant which performs Crassulacean Acid Metabolism is
  • Oak
  • Cactus
  • Fern
  • Maize
27. The production of ATP by oxidative phosphorylation is driven by energy from: [IE 2006]

[IE 2006]

  • Coenzyme-A
  • Isomerisation of cytochrome
  • Diffusion of protons from the inter membrane space to the matrix of the mitochondria
  • Formation of NADH
28. Photorespiration occurs in:  [IOM 2014]

[IOM 2014]

  • Lysosomes
  • Peroxisomes
  • Centrioles
  • Mesosomes
29. The electron transfer system is present in  [IOM 2014]

[IOM 2014]

  • Chloroplast
  • Mitochondria
  • Lysosomes
  • Cytoplasm
30. In prokaryotes the total number of ATP produced in aerobic respiration is  [IOM 2014]

[IOM 2014]

  • 36
  • 2
  • 38
  • 34
31. Alcohol fermentation takes place in the presence of:  [IOM 2013]

[IOM 2013]

  • Zymase
  • Invertase
  • Maltase
  • Amylase
32. Pyruvic acid is changed into CO_2  and H_2 O in  [IOM 2013]

[IOM 2013]

  • Kreb's cycle
  • Glycolysis
  • Fermentation
  • Calvin cycle
33. Glycolysis occurs in
  • Golgi complex
  • Cytoplasm
  • Mitochondria
  • ER
34. Kreb's cycle occurs in  [MOE 2013]

[MOE 2013]

  • Nucleus
  • Chloroplast
  • Mitochondria
  • Cytoplasm
35. Respiration is performed by all the living cells of the plant  [MOE 2068]

[MOE 2068]

  • At all times
  • During day
  • During night
  • In the morning
36. Glycolysis takes place in [MOE 2068]

[MOE 2068]

  • Cytoplasm
  • Chloroplast
  • Ribosome
  • Mitochondria
37. Kreb's cycle is involved in  [MOE 2010]

[MOE 2010]

  • Osmosis
  • Photosynthesis
  • Respiration
  • Transpiration
38. Oxidation of glucose takes place in [MOE 2010]

[MOE 2010]

  • Chloroplast
  • Mitochondria
  • Cytoplasm
  • Ribosome
39. In cyclic phosphorylation, main product is  [MOE 2010]

[MOE 2010]

  • NADP
  • NADPH2 and ATP
  • NADP, ATP and O2
  • ATP