1. The plants requiring two metallic compounds (minerals) for chlorophyll synthesis are
a) Fe and Ca
b) Fe and Mg
c) Cu and Ca
d) Ca and K
Explanation: Fe and Mg
2. Calcium can affect the
a) Permeability of plasma membrane
b) Hydration of colloids
c) Translocation of carbohydrates and amino acids
d) Development of root
Explanation: Calcium can affect the permeability of plasma membrane
3. Which of the following is not absorbed through soil?
a) Carbon
b) Nitrogen
c) Potassium
d) All of these
Explanation: Carbon is not absorbed through soil.
4. Which of the following is considered to be the elements between macronutrients and
micronutrients?
a) Iron
b) Nitrogen
c) Phosphorus
d) Manganese
Explanation: Iron is considered to be the elements between macronutrients and micronutrients.
5. The major role of phosphorus in plant metabolism is
a) To generate metabolic energy
b) To evolve oxygen during photosynthesis
c) To evolve carbon dioxide during respiration
d) To create anaerobic conditions
Explanation: The major role of phosphorus in plant metabolism is to generate metabolic energy.
6. Phosphorus is a structural element in
a) Fat
b) Starch
c) Nucleotide
d) Carbohydrate
Explanation: Phosphorus is a structural element in Nucleotide
7.The most abundent element present in the plants is
a) Manganese
b) Iron
c) Carbon
d) Nitrogen
Explanation: The most abundent element present in the plants is Carbon.
8. Photosynthetic photolysis of water takes place in the presence of
a) Mn
b) Cl
c) Both (a) and (b)
d) None of these
Explanation: Both (a) and (b)
9. Copper is the component of
a) Cytochrome oxidase
b) Plastocyanin
c) Both (a) and (b)
d) None of these
Explanation: Copper is the component of cytochrome oxidase and plastocyanin.
10. Which of the following element is a component of ferredoxin?
a) Cu
b) Mn
c) Zn
d) Fe
Explanation: Fe element is a component of ferredoxin.