Untitled Document

Question Bank No: 14

1. The wavelength of light most absorbed during photosynthesis is

a)		400nm
b)		500nm
c)		550nm
d)		660nm

2. Organelle associated with photorespiration is

a)		lysosome
b)		Peroxisome
c)		Glyoxisome
d)		mesosome

3. NADPH is generated through

a)		PS-I
b)		PS-II
c)		anaerobic respiration
d)		Glycolysis

4. Warbug effect is decreased rate of photosynthesis at

a)		Low concentration of ${CO}_{2}$
b)		High concentration of ${CO}_{2}$
c)		Higher concentration of $O_{2}$
d)		None.

5. Photosynthetic evolution of $O_{2}$ requires

a)		Co-enzyme
b)		Fe- enzyme
c)		Mn-enzyme
d)		Zn-enzyme

6. The first product of photorespiration

a)		Glycolic acid
b)		Serine
c)		Phosphoglycolate
d)		Glycine

7. $C_{4}$ plants have photosynthetic rate because

a)		They have no photorespiration
b)		They have krantz anatomy
c)		They have PEP as ${CO}_{2}$ acceptor
d)		They can photosynthesis at low light intensity.

8. Which element is essential for photosynthesis of water?

a)		N
b)		Cl
c)		C
d)		O

9. In $C_{4}$ Plants, initial ${CO}_{2}$ fixation takes place in Chloroplasts of

a)		Guard Cells
b)		Spongy Mesophyll
c)		Palisade tissue
d)		Bundle sheath cells

10. The assimilatory powers produced during photosynthesis are..

a)		$H_{2} O$ and $O_{2}$
b)		RuBP & RuMP
c)		$C_{6}$ $H_{12} O_{6}$ & PGAL
d)		ATP & ${NADH}_{2}$

11. Which of the following is present at 3 carbon atom of IInd Pyrrole ring of 'Chl.a" molecule?

a)		-CHO group
b)		-COOH Group
c)		- ${CH}_{3}$ group
d)		Mg

12. The wave length most active during Photosynthesis

a)		400-500nm
b)		400-700nm
c)		200-450nm
d)		516-600nm

13. Chlorophyll is soluble only in

a)		water
b)		organic solvents
c)		Water and organic solvents
d)		any solvent

14. Which of the following is a photosynthetic free-living $N_{2}$ fixer (aerobic)?

a)		Anabaena
b)		Rhizobium
c)		Azospirillum
d)		Azotobacter

15. The process of photosynthesis takes places in

a)		in the cells of leaves
b)		in the chloroplast
c)		the leaves
d)		The entire plant

16. Hill reaction in photosynthesis refers to

a)		Absorption of ${CO}_{2}$
b)		${CO}_{2}$ fixation
c)		Photoreduction
d)		Splitting of water

17. Iron deficiency causes

a)		Necrosis In old leaves
b)		Dwarfness
c)		Defoliation
d)		Interveinal Chlorosis

18. Cytochrome Oxidase contains

a)		Cu
b)		Fe
c)		Zn
d)		Mg

19. Who is credited with the formula of balanced solution of mineral elements for plant

a)		Went
b)		Knop
c)		Hill
d)		Emerson

20. A non essential element present in equisetum

a)		Au
b)		Ag
c)		Hg
d)		Zr

21. The framework elements of plants are

a)		Mg, Cu, Fe
b)		Cu, C, O
c)		Mn, Ca, N
d)		C, H, O

22. The mass flow hypothesis of mineral absorption was proposed by

a)		Lopushinky
b)		Munch
c)		Hylmo
d)		Emerson

23. The transport of ions in bacteria occurs through

a)		Volutin Granules
b)		Ionophores
c)		Proteins
d)		Plasmids

24. The enzyme needed for break down for ion- carrier complex, according to Bennet- Clark is

a)		lecithinase
b)		Choline esterase
c)		Kinase
d)		Choline acetylase

25. Heart rot of sugar beet is caused due to the deficiency of

a)		Mn
b)		Cu
c)		Zn
d)		B

26. Whiptail of cauliflower is caused due to the deficiency of

a)		Iron
b)		Molybdinum
c)		Chlorine
d)		Boron

27. Absence of Magnesium in Plants ultimately results in

a)		Chlorosis
b)		Necrosis
c)		Plasmolysis
d)		Wilting

28. Death of a stem and root tip occurs due to deficiency of

a)		Phosphorus
b)		Nitrogen
c)		Calcium
d)		Carbon

29. Soil water potential is measured with the help of a

a)		Porometer
b)		Tensiometer
c)		Potometer
d)		Paedometer

30. In guard cells sugar is converted into starch. The stomatal pore will

a)		open
b)		Close
c)		Open partially
d)		Remain unchanged

31. An antitranspirant is

a)		Phenyl mercuric Acetate
b)		$O_{2}$
c)		Methyl Mercuric acid
d)		All the above

32. Pulsation theory of ascent of sap was proposed by

a)		Dixon & Jolly
b)		J.C Bose
c)		Curtis and Clark
d)		None of the above

33. Presence of root pressure in plants is supported by demonstrating

a)		Bleeding
b)		Transpiration
c)		Anaerobic Respiration
d)		Endogenous rhythm

34. Epistomatic Leaves are found in

a)		Apple
b)		Potato
c)		Water Lilly
d)		Potamogeton

35. Which Photoreceptor controls opening and closing of stomata?

a)		Chlorophyll
b)		Chlorophyll b
c)		Phytochrome
d)		Carotene

36. The Hydathodes remain helpful in

a)		Transpiration
b)		Gutattion
c)		Photosynthesis
d)		Respiration

37. With the help of Potometer, we actually measure

a)		Transpiration directly
b)		Absorption of water
c)		Water utilization
d)		Suction due to transpiration

38. Clinostat is used to study

a)		Ceotropism
b)		Nastic Movements
c)		Growth
d)		Phototropism

39. PWP stands for

a)		Permanent Wilting point
b)		Permanent Wilting Percentage
c)		Passage wilting percentage
d)		Porespace wilting point

40. The correct relationship is

a)		$ψ_{w}$ = $ψ_{s}$ + $ψ_{p}$ + $ψ_{g}$
b)		$ψ_{w}$ = $ψ_{s}$ - ( $ψ_{p}$ + $ψ_{g}$ )
c)		$ψ_{w}$ = $ψ_{s}$ - $ψ_{p}$ - $ψ_{g}$
d)		$ψ_{w}$ = $ψ_{s}$ +( $ψ_{p}$ - $ψ_{g}$ )

41. Blackman used the term floating respiration when the respiratory substrates was

a)		Fats
b)		Carbohydrates
c)		Proteins
d)		Organic Acids

42. With which of the following 'Matric Potential' is associated?

a)		Osmosis
b)		Imbibition
c)		Plasmolysis
d)		Diffusion

43. The amide found in plant..

a)		Glutamic acid
b)		Aspartic acid
c)		Asparagine
d)		Glycine

44. Crocus flowers open due to the effect of

a)		Temperature
b)		Light
c)		Water
d)		Contact

45. Increased respiration during fruit ripening

a)		Anthesis
b)		Clamateric
c)		Protoplasmic Respiration
d)		Photorespiration

46. 'Nod' genes of plants are associated with

a)		Lipid Metabolism
b)		Nitrogen Metabolism
c)		Carbohydrate Metabolism
d)		None of the above

47. Oxidation of ammonia into nitrites by nitro-somonas is called..

a)		Nitrosification
b)		Nitrification
c)		Ammonification
d)		Denitrification

48. Hydroactive control of the stomatal movement is the control of stomata by water mediated through

a)		Abscisic acid
b)		Vernalin
c)		Auxins
d)		Phytochrome

49. Wilmotl's bubbler is a laboratory apparatus used to do the experiments related to..

a)		Transpiration
b)		Osmosis
c)		Photosynthesis
d)		Respiration

50. The ${CO}_{2}$ content in atmosphere is

a)		0.034%
b)		0.34%
c)		3.34%
d)		4%