MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Function of enterogastrone is: |
| A. | regulation of flow of bile |
| B. | inhibition of gastric secretion |
| C. | stimulation of gastric secretion |
| D. | stimulation of flow of pancreatic juice |
| Answer» C. stimulation of gastric secretion | |
| 2. |
The juice containing sodium glycocholate is- released under the influence of: (EAMCET 2006) |
| A. | seeretin |
| B. | enterokinin |
| C. | cholecystokinin |
| D. | enterogastrone |
| Answer» D. enterogastrone | |
| 3. |
Secretin and cholecystokinin are digestive hormones. They are secreted in: (JIPMER 2007; Manipal 2007) |
| A. | ileum |
| B. | duodenum |
| C. | oesophagus |
| D. | pyloric stomach |
| Answer» C. oesophagus | |
| 4. |
Pancreatic secretion and gall bladder contractions are stimulated by: (DPMT 2006) |
| A. | gastrin |
| B. | enterocrinin |
| C. | enterogastrone |
| D. | cholecystokinin |
| Answer» E. | |
| 5. |
Secretion and cholecystokinin are two hormones involved in digestion. They are secreted by: |
| A. | ileum |
| B. | stomach |
| C. | duodenum |
| D. | oesophagus |
| Answer» D. oesophagus | |
| 6. |
The hormone cholecystokinin, released from intestinal epithelium stimulates: |
| A. | secretion of pancreatic juice |
| B. | release of bile from gall bladder |
| C. | conversion of fats into glycerol |
| D. | conversion of protein to peptones |
| Answer» C. conversion of fats into glycerol | |
| 7. |
Secretion of gastric juice is controlled by: (RPMT2005; VMMC-Safdarjung 2007; WB-JEE 2010) |
| A. | gastrin |
| B. | enterogastrin |
| C. | cholecystokinin |
| D. | none of these |
| Answer» B. enterogastrin | |
| 8. |
'Thylakoid' name was given by [RPMT 1995] |
| A. | Arnon |
| B. | Park and Biggins |
| C. | Park and Fortan |
| D. | Manke |
| Answer» E. | |
| 9. |
?Photosynthesis is the conversion of light energy within a plant' was first stated by [EAMCET 1980] |
| A. | Willstatter and Stoll |
| B. | Mayor and Anderson |
| C. | Benson and Calvin |
| D. | Robert Mayer |
| Answer» E. | |
| 10. |
Most of the plants contain a green colouring pigment which is responsible for photosynthesis. This pigment was named chlorophyll by |
| A. | Melvin Calvin |
| B. | Jean Senebier |
| C. | Julius Robert Mayer |
| D. | Pelletier Caventou |
| Answer» E. | |
| 11. |
The plants growing in sea water derive\[C{{O}_{2}}\]from |
| A. | Air |
| B. | Derive form sea water |
| C. | Use\[C{{O}_{2}}\]which is produced during their respiration only |
| D. | Do not require\[C{{O}_{2}}\]at all |
| Answer» C. Use\[C{{O}_{2}}\]which is produced during their respiration only | |
| 12. |
Which of the following technique was used by Calvin in determining carbon pathway [MP PMT 1992] |
| A. | Chromatography |
| B. | Electrophorosis |
| C. | Spectrophotometery |
| D. | Histochemistry |
| Answer» B. Electrophorosis | |
| 13. |
The scientist, who proved that bacteria use\[{{H}_{2}}S\]gas and\[C{{O}_{2}}\]to synthesize carbohydrate, is |
| A. | Van Niel |
| B. | Ruben |
| C. | Jean Senebier |
| D. | Julius Robert Mayer |
| Answer» B. Ruben | |
| 14. |
Two pigment system theory of photosynthesis was proposed by or Concept of evidence for existence of two photosystems in photosynthesis was given by [DPMT 1986; MP PMT 1989; CBSE PMT 1994] |
| A. | Hill |
| B. | Blackman |
| C. | Emerson |
| D. | Arnon |
| Answer» D. Arnon | |
| 15. |
Who proposed the CAM pathway of \[C{{O}_{2}}\]fixation |
| A. | Benson and associates |
| B. | Rouhani and associates |
| C. | Hatch and associates |
| D. | Arnon and associates |
| Answer» C. Hatch and associates | |
| 16. |
Who received the Nobel Prize for working out the early carbon pathway of photosynthesis [BHU 1990; MP PMT 1989; AIEEE 2003] |
| A. | Calvin |
| B. | Krebs |
| C. | Khorana |
| D. | Watson |
| Answer» B. Krebs | |
| 17. |
The process of photophosphorylation was discovered by [RPMT 1985; Pb. PMT 1999, 2000] |
| A. | Calvin |
| B. | Arnon |
| C. | Priestley |
| D. | Warburg |
| Answer» C. Priestley | |
| 18. |
Crop plants need various fertilizers for their growth. Their yield is limited by that fertilizer which is present in relatively minimum. The principle contained in this statement was enunciated by |
| A. | Bose |
| B. | Blackman |
| C. | Leibig |
| D. | Calvin |
| Answer» D. Calvin | |
| 19. |
The law of limiting factor in photosynthesis was criticised by |
| A. | James and Harder |
| B. | Mayer and Anderson |
| C. | Willstatter and Stoll |
| D. | Hill and Scarisbrick |
| Answer» B. Mayer and Anderson | |
| 20. |
Who proposed the 'law of limiting factor' as the 'law of minimum' |
| A. | Blackman |
| B. | Hill |
| C. | Leibig |
| D. | Priestley |
| Answer» D. Priestley | |
| 21. |
Who proposed the cycle of events leading to the fixation of\[C{{O}_{2}}\]in mesophyll and its reduction in bundle sheath |
| A. | Emerson |
| B. | Melvin Calvin |
| C. | Hatch and Slack |
| D. | Hill and Bendall |
| Answer» D. Hill and Bendall | |
| 22. |
Early studies on the pathway of\[C{{O}_{2}}\]fixation in plants were made during 1940s in |
| A. | Unicellular green algae by Calvin |
| B. | Isolated chloroplast of spinach by Hill |
| C. | Mesophyll cells of variegated leaves by Arnon |
| D. | Bundle sheath cells of maize by Hatch and Slack |
| Answer» B. Isolated chloroplast of spinach by Hill | |
| 23. |
"The amount of\[C{{O}_{2}}\]absorbed and\[{{O}_{2}}\]released during photosynthesis are in equal volumes" was proved by |
| A. | Englemann |
| B. | Robert Mayer |
| C. | Priestley |
| D. | Bousingault |
| Answer» E. | |
| 24. |
The first important biological investigation which led to the conclusion that plant makes its substance from water and not from soil was carried out by [AFMC 1984] |
| A. | Lamarck |
| B. | De Vries |
| C. | Von Helmont |
| D. | Darwin |
| Answer» D. Darwin | |
| 25. |
The significance of light and chlorophyll in photosynthesis was discovered by [DPMT 1985; NCRT 1977; Bihar 1995] |
| A. | Priestley |
| B. | Ingenhousz |
| C. | Englemann |
| D. | Blackman |
| Answer» C. Englemann | |
| 26. |
The law of limiting factor for photosynthesis was enunciated by [BHU 1984; CMC Vellore 1994; CPMT 1982, 2001; CBSE PMT 1996; KCET 2004; Manipal 2005] |
| A. | Blackman |
| B. | Hill |
| C. | Ruben |
| D. | Kalmen |
| Answer» B. Hill | |
| 27. |
In gymnosperms pollination is exclusively by [CBSE PMT 1993; RPMT 1999] |
| A. | Animals |
| B. | Wind |
| C. | Water |
| D. | Insects |
| Answer» C. Water | |
| 28. |
Gymnosperms do not have [CPMT 1991] |
| A. | Trees |
| B. | Shrubs |
| C. | Lianas |
| D. | Herbs |
| Answer» E. | |
| 29. |
Most of the gymnosperms have [CPMT 1983, 91] |
| A. | Only antheridia |
| B. | Both antheridia and archegonia |
| C. | Archegonia but no antheridia |
| D. | Both absent |
| Answer» D. Both absent | |
| 30. |
In which of the following groups would you place a plant which produces seeds but lacks flower and fruits [AIIMS 1985; CPMT 1996; AMU 2005] |
| A. | Fungi |
| B. | Bryophytes |
| C. | Pteridophytes |
| D. | Gymnosperms |
| Answer» E. | |
| 31. |
Which one of the following is not a cryptogam |
| A. | Algae |
| B. | Bryophyta |
| C. | Pteridophyta |
| D. | Gymnosperms |
| Answer» E. | |
| 32. |
Three generations one within the other are present in the seeds of |
| A. | Gymnosperms |
| B. | Dicots |
| C. | Monocots |
| D. | All the above |
| Answer» B. Dicots | |
| 33. |
A typical gymnospermous plant has 8 chromosomes in leaf cells. What will be number of chromosomes in the cells of its gametophyte [HP PMT 2005] |
| A. | 16 |
| B. | 8 |
| C. | 4 |
| D. | 24 |
| Answer» D. 24 | |
| 34. |
In gymnosperms how many male gametes are produced by each pollen grain [HP PMT 2005] |
| A. | 4 |
| B. | 3 |
| C. | 2 |
| D. | 1 |
| Answer» D. 1 | |
| 35. |
Which of the following is not the feature of gymnosperms [BHU 2005] |
| A. | Parallel venation |
| B. | Perennial plants |
| C. | Distinct branches (long and short branches) |
| D. | Xylem with vessels |
| Answer» E. | |
| 36. |
In gymnosperms, pollen drop is the [JIPMER 1983] |
| A. | Red drop |
| B. | Pollens droped by wind |
| C. | Secretion of nucellus |
| D. | Water drops |
| Answer» D. Water drops | |
| 37. |
The arrangement of megaspores in a tetrad in a gymnosperm is [CPMT 2000] |
| A. | Decussate |
| B. | Tetrahedral |
| C. | Linear |
| D. | Isobilateral |
| Answer» D. Isobilateral | |
| 38. |
Resin duct of a gymnospermous stem is an example of [BHU 1999; Pb. PMT 2004] |
| A. | Big vacuole |
| B. | Lysigenous cavity |
| C. | Intercellular space |
| D. | Schizogenous cavity |
| Answer» E. | |
| 39. |
Which of the following is living fossil [CBSE PMT 1996, 97; Orissa JEE 2005] |
| A. | Pinus |
| B. | Ginkgo |
| C. | Thuja |
| D. | Deodar |
| Answer» C. Thuja | |
| 40. |
What is the similarity between gymnosperms and angiosperms [CPMT 1996] |
| A. | Phloem of both have companian cells |
| B. | Endosperm is formed before fertilization in both |
| C. | Origin of ovule and seed is similar in both |
| D. | Both have leaves, stem and roots |
| Answer» E. | |
| 41. |
Primary development of male and female gametophytes takes place in the sporangia itself in |
| A. | Selaginella |
| B. | Fern |
| C. | Pinus |
| D. | Both (a) and (c) |
| Answer» E. | |
| 42. |
In which class of gymnosperms, fossils are present [CPMT 1995] |
| A. | Cycadophyta |
| B. | Coniferophyta |
| C. | Gnetopsida |
| D. | Both (a) and (b) |
| Answer» E. | |
| 43. |
Fruitless flowering plants are called [EAMCET 1995; BVP 2000] |
| A. | Sterile plants |
| B. | Angiosperms |
| C. | Primitive |
| D. | Gymnosperms |
| Answer» E. | |
| 44. |
Gymnosperms originated in |
| A. | Coenozoic |
| B. | Palaeozoic |
| C. | Pre?cambrian |
| D. | Mesozoic |
| Answer» C. Pre?cambrian | |
| 45. |
The lateral conduction in gymnospermic leaf is by [MHCET 2002] |
| A. | Veins |
| B. | Xylem parenchyma |
| C. | Transfusion tissue |
| D. | Medullary rays |
| Answer» D. Medullary rays | |
| 46. |
Canada balsam is an oleoresin obtained from |
| A. | Abies balsamea |
| B. | Impatiens balsamia |
| C. | Pinus sp. |
| D. | Helianthus annus |
| Answer» B. Impatiens balsamia | |
| 47. |
The roots of gymnosperms is |
| A. | Tap root |
| B. | Adventitious roots |
| C. | Rhizoid |
| D. | Rhizophores |
| Answer» B. Adventitious roots | |
| 48. |
Red wood tree is |
| A. | Cedrus |
| B. | Pinus |
| C. | Dalbergia |
| D. | Sequoia |
| Answer» E. | |
| 49. |
Which is the smallest gymnosperm among the following |
| A. | Cycas |
| B. | Pinus |
| C. | Zamia |
| D. | Gnetum |
| Answer» D. Gnetum | |
| 50. |
Fruits are not found in gymnosperms plants because [DPMT 1990; AFMC 1995] |
| A. | They are seedless plants |
| B. | They are not pollinated |
| C. | They have no ovary |
| D. | Process of fertilization does not take place in them |
| Answer» D. Process of fertilization does not take place in them | |