11. Deficiency of which element kills terminal buds leaving a rosette effect on the plant ?
12. Deficiency of which element shows stunted growth ?
13. State importance of iron ?
A. Required for activation of Carboxyalase enzyme.
B. Required for the structure of Ferodoxin.
C. Required for the photolysis of H2O during photosynthesis
D. Required for the absorption and metabolism of Ca.
Answer : Option B
14. Which element is required for absorption and utilization of calcium ?
15. State deficiency of Cl.
A. Wilting of stubby roots
B. brown spoted fruits
C. accumalation of purple pigment
D. premature leaf fall
Answer : Option A
16. Due to which element deficiency bark of tree becomes rough and gets split and exudes gum-like secretion ?
17. Which element deficiency shows bronzing leaves ?
18. equillibrium is achieved at which surface ?
A. Cell wall
B. Nuclear membrance
C. plasma membrance
D. Vascular membrace
Answer : Option D
19. What is the function of Zn ?
A. Synthesis of Carboxyalase enzyme
B. Formation of Indol Acetic acid (IAA)
C. required for absprption and utilization of Ca.
D. required for maintenance of ribosomal constituent.
Answer : Option B
20. One plant is given Urea fertilizer, but it has deficiency of phosphorous, this plant will show which symptom ?
A. Cambium activity reduces
B. fruit size deminishes
C. Grey spots on leaves
D. seed dormancy increases.
Answer : Option D