Q.1
Assertion: Deficiency of sulphur causes chlorosis in plants Reason: Sulphur is constituent of chlorophyll, proteins and nucleic acid ... .... [ AIIMS 2004]
  • a) If both the assertion and reason are true and reason explains the assertion.
  • b) If both the assertion and reason are true but reason does not explain the assertion
  • c) If assertion is true but reason is false
  • d) If assertion is false but reason is true.
Q.2
Which of the following is macronutrient ... ... [ Har PMT 2007]
  • a) Ca
  • b) Mo
  • c) Mn
  • d) Zn
Q.3
Free living bacteria that can fix N2 in soil are ... ... [ Odisha 2012]
  • a) Azotobacter
  • b) Beijerinckia
  • c) Clostridium
  • d) All the above
Q.4
Die back shoots is due to ... ... [ kerala 2000 ]
  • a) Mn
  • b) Mo
  • c) B
  • d) Cu
Q.5
Which one is essential for root growth? ... ... [ BHU 2004]
  • a) Zn
  • b) Ca
  • c) Mo
  • d) S
Q.6
Exanthema is a result of deficiency of .... ... { AMU 1997]
  • a) Cu
  • b) Na
  • c) P
  • d) Ca
Q.7
A primary deficiency is caused by insufficient absorption of .... .....
  • a) Magnesium
  • b) Manganese
  • c) Calcium
  • d) Potassium
Q.8
Chlorosis is caused by deficiency of ... .... [ MPPMT 1995]
  • a) Iron
  • b) Calcium
  • c) Copper
  • d) Boron
Q.9
Assume that an actively respiring cell has 3X number of K+ in its cytoplasm and 2X number of K+ outside. After some time X number of K+ enter the cell. What is the process by which K+ transport has taken place ... ... [ EAMCET 2009]
  • a) Primary active transport
  • b) Secondary active transport
  • c) Passive transport
  • d) Diffusion
Q.10
A crop plant which can grow in nitrogen deficient soils without external supply of it is ... .... [ CPMT 1990]
  • a) Allium sativum
  • b) Gossypium herbaceum
  • c) Cajanus cajan
  • d) Helianthus annuus
Q.11
Azolla has a symbiotic relationship with ... ... [ CBSE 2004]
  • a) Chlorella
  • b) Anabaena
  • c) Nostoc
  • d) Tolypothrix
Q.12
Sulphur is an important nutrient for optimum growth and productivity in .... .... [ CBSE 2006]
  • a) Oilseed crops
  • b) Pulse crops
  • c) Cereals
  • d) Fibre crops
Q.13
One mineral activates enzyme catalase and other is constituent of chlorophyll. They are respectively .... ...[ kerala 2012]
  • a) Iron and Magnesium
  • b) Iron and Manganese
  • c) Magnesium and Manganese
  • d) Calcium and Magnesium
Q.14
Non-symbiotic nitrogen fixing prokaryote is ... .... [ DPMT 2009]
  • a) Rhizobium
  • b) Nostoc
  • c) Frankia
  • d) Azobacter
Q.15
Soil nitrate is more likely to leach than ammonium due to its .... ......
  • a) Small size
  • b) Negative charge
  • c) Being useless to soil flora
  • d) Abundance
Q.16
Magnesium is an important component of ... ... [ CBSE 2000 ]
  • a) Haemoglobin
  • b) Florigen
  • c) Enzymes
  • d) Chlorophyll
Q.17
Which is incorrect about ion channels ... .... [ WB2008]
  • a) They are proteins
  • b) All ions pass through same channel
  • c) Movement through them is simple diffusion
  • d) Movement through them is from high to low concentration
Q.18
Element which is a component of proteinaceous materials and protoplasm is ... ....[ AMU 1996]
  • a) Potassium
  • b) Nitrogen
  • c) Magnesium
  • d) Oxygen
Q.19
Micronutrients/trace elements are those that ... ....
  • a) Can be removed from the plant without any effect on it
  • b) Play a minor role in plant nutrition
  • c) Form very small molecules in plants
  • d) Are present/required in small quantities in plants
Q.20
Nitrogen fixing enzyme found in root nodules is ... .... [ CBSE 2001]
  • a) Nitrogen esterase
  • b) Nitrogenase
  • c) Nitrase
  • d) Nitrosomonas
Q.21
Boron assists in ... .. [ CBSE 2003]
  • a) Activation of enzymes
  • b) Photosynthesis
  • c) Sugar transport
  • d) Acting as enzyme cofactor
Q.22
Which of the following is a macronutrient .... .... [ RPMT 2000 ]
  • a) Mo
  • b) Mg
  • c) Mn
  • d) Zn
Q.23
An immobile element in plants is ... ... [ CBSE 2011]
  • a) Calcium
  • b) Potassium
  • c) Phosphorus
  • d) Nitrogen
Q.24
Which combination of micro and macronutrients is correct ... ... [ Odisha 2000 ]
  • a) Cu, Fe, K, P, ; B, Zn, Mo, N
  • b) Cu, K, P, B ; Fe, N, Mo, Ca
  • c) Cu, Zn, B, Mo; N, P, K, S
  • d) B, Fe, K, Zn ; P, K, Mn and Mo
Q.25
Micronutrients are .... .... [ AMU 2012]
  • a) Mn, Ni, Zn
  • b) Mg, Mn, Mo
  • c) Cu, B, O
  • d) Ca, S, Fe
Q.26
Bidirectional translocation of minerals takes place through ... .... [ CBSE 1997]
  • a) parenchyma
  • b) Cambium
  • c) Xylem
  • d) Phloem
Q.27
Which is not caused by deficiency of mineral .... .... [ MPPMT 2007]
  • a) Chlorosis
  • b) Etiolation
  • c) Necrosis
  • d) Shortening of internodes
Q.28
Culturing of plants in water/soil-less medium is ... ..... [ AIIMS 2000 ]
  • a) Hydroponics
  • b) Sand culture
  • c) Aeroponics
  • d) Soil-less culture
Q.29
Internal cork of Apple/browning of Cauliflower is deficiency symptom of ... ... [ BHU 1997]
  • a) Mo
  • b) B
  • c) Cu
  • d) Zn
Q.30
NPK denotes .... ... [ MPPMT 1990]
  • a) Nitrogen, protein and kinetin
  • b) Nitrogen, protein and potassium
  • c) Nitrogen, potassium and kinetin
  • d) Nitrogen, phosphorus and potassium
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