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Test Your Knowledge
PLANT PHYSIOLOGY
1. Water potential and osmotic potential of pure water are:
a) 100 & zero
b) Zero & 100
c) 100 & 100
d) Zero & Zero
S.K. TRIVEDI
14. C4 plants _________ cell organelles:
a) One
b) Two
c) Three
2. Loss of water from specific nodes on the margin of leaf is
called:
a) Transpiration
b) Bleeding
c) Evaporation
d) Guttation
3. Water moves in plants from:
a) Less negative to more negative gradient
b) During equal gradients
c) More negative to Less negative gradient
d) Zero gradient
4. Plants synthesize auxins using mineral/minerals:
a) Cu
b) Zn
c) Both
d) Mo
d) Four
15. Photorespiration begins with:
a) Glycine
c) Phosphoglycolate
b) Glycerate
d) Phophoglycerate
16. EMP pathway is also called:
a) Glycolysis
c) Anaerobic respiration
b) Photorespiration
d) Krebs’ cycle
17. Citrates are also known as:
a) Tricarboxylic Acid
c) Aconitate
b) Glycerates
d) All of the above
18. TCA cycle was proposed by:
a) Melvin Calvin
c) Hatch & Slack
b) Hans Kreb
d) Von Neil
5. Boron helps in plant physiology in:
a) Photosynthesis
b) Activation of enzyme
c) Sugar transport
d) Co-factor of enzymes
19. The final acceptor of electron in ETS is:
a) CO2
b) O2
c) H 2O
6. Death of tissues of leaf is called:
a) Chlorosis
b) Neurosis
c) Die-back
d) Vein cleaning
20. Proteins/fats are used up in metabolism through:
a) EMP pathway
b) ETS pathway
c) Amphibiotic pathway
d) None of the above
7. The first reaction of photosynthesis is:
a) Excitation of electrons
b) Photolysis
c) Formation of ATP
d) CO2 fixation
21. The overall ATP formed during respiration is:
a) 36 ATP
b) 40 ATP
c) 88 ATP
d) 2 ATP
8. Chemical that converts light energy to chemical energy is:
a) Xanthophyll
b) Chlorophyll a
c) Chlorophyll b
d) Chlorophyll c
22. Hormone responsible for plant senescence is:
a) G A
b) 1AA
c) ABA
d) Cytokine
9. Photo-oxidation reaction is:
a) Photolysis
c) Light SO2 induced breakdown
23. Coconut milk is a source of
a) 1AA
c) 2-4-d
b) Photorespiration
d) All of the above
b) Cytokine
d) Ethylene
24. Which is known as fruit ripening hormone?
a) 1BA
b) Ethylene
c) ABA
d) Cytokine
10. Calvin cycle is mainly:
a) Oxidative Carboxylation
b) Reductive Carboxylation
c) Photophosphorylation
d) Oxidative Phosphorylation
25. Which process promotes early flaring by low temperature
treatment?
a) Photoperiodic
b) Photo-phosphorylation
c) Oxidative Phosphorylation
d) Vernalisation
11. The first stable product of C4 cycle is:
a) 3PGA
b) Malate
c) Citrate
d) 2-Phosphocitrate
12. RUBISCO catalyzes oxygenation during:
a) Light reaction
b) Photolysis
c) Photorespiration
d) Calvin cycle
ANSWERS:
9. d
10. b
11. b
12. c
13. O2 evolved during photosynthesis is generated during:
a) Oxidative phosphophorylation
b) Oxidative carboxylation
c) Photolysis
d) Photorespiration
17. a
25. d
18. b
19. b
20. c
SCIENCE REPORTER, JANUARY 2011
d) Citric acid
1. d
2. d
3. a
4. b
5. c
6. b
7. a
8. b
13. c
14. c
15. c
16. a
21. b
22. c 23.b
24. b
Contributed by Dr S.K. Trivedi, HOD (Bio), Academic IIC Patna Central
School, S. Vihar, New-Bye-Pass, Patna-800027
40
Test Your Knowledge
AZIZ AHMED HASHMI
PHYSICS
12. The macrostate rapidly and successively changes to be
in a gigantic number of different:
a) Thermodynamic frequency
b) Thermodynamic states
c) Microstates
d) Frequency states
1. The energy spent in doing work stored in the wire is
known as:
a) Kinetic energy
b) Potential energy
c) Stain energy
d) None
2. The property by virtue of which a liquid opposes relative
motion between its different layers is called:
a) Viscosity
a) Elasticity
b) Relativity
c) Malleability
13. It is the science that discusses the relation of heat to
mechanical work:
a) Thermodynamics
b) Thermochemistry
c) Dynamics
d) None
3. Callender and Griffith Bridge apparatus is used in finding
the:
a) Voltage
b) Heat
c) Current
d) Resistance
14. The boiling point of a liquid is raised by increase of:
a) Mass
b) Pressure
c) Temperature
d) Volumes
4. Demagnetisation thermometers are used for
measurement below the temperature:
b) -2720 C
a) -10 C
d) -2620 C
c) -500 C
15. The production of E.M.F by a thermocouple when one of
the junctions is heated keeping the other cold is known
as:
a) Thomson effect
b) Peltier effect
c) Raman effect
d) Seebeck effect
5. Jaly’s steam calorimeter is used for determining specific
heat of:
a) Solid
b) Suspension
c) Gas
d) Liquid
16. Helium was liquefied by K. Onnes in:
a) 1900
b) 1808
c) 1908
d) 1800
6. Quantum laws are applicable to:
a) Energy
b) Work
c) Power
d) Force
7. All gases are composed of:
a) Particles
c) Atom
17. A perfect body that absorbs totally all the radiations of
any wavelength falling on it is called:
a) Blackbody
b) White body
c) Radiator body
d) Absorb body
b) Molecules
d) Element
18. A non-contacting device that intercepts and measures
thermal radiation to determine the temperature of an
object’s surface is called:
8. PV=RT is:
a) Boyle’s law
b) Dalton’s Law
c) Charles’s Law
d) Avogadro’s Law
a) Lactometer
c) Hydrometer
b) Pyrometer
d) Voltmeter
19. The sun consists of a central hot core terminating in the:
a) Lithosphere
b) Atmosphere
c) Photosphere
d) None
9. The phenomenon of viscosity is due to the transport of:
a) Work
b) Energy
c) Force
d) Momentum
20. Which is used for the determination of the velocity of light:
a) Kerr Cell
b) Michelson Method
c) Prison cell
d) Pease Cell
10. The gaseous and liquid states may be regarded as
distinct stages of a series of __________continuous
changes:
a) Physical
b) Chemical
c) Thermal
d) None
ANSWERS:
1. c
2. a
9. d 10. a
17. a 18. b
11. In classical statistics each compartment wise distribution
of a system of particles is known as:
a) Solid state
b) Macrostate
c) Liquid state
d) None
3. d
11. b
19. c
4. b
12. c
20. a
5. c
13. a
6. a
14. b
7. b
15. d
8. c
16. c
Contributed by Shri Aziz Ahmed Hashmi, Behind Seema Building, Roushan
Khan Corner, Parbhani-431401 (M.S.)
41
SCIENCE REPORTER, JANUARY 2011