Search Colleges, Exams, Schools & more
Login
Mineral Toxicity MCQ - Practice Questions with Answers
Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET
Quick Facts
-
5 Questions around this concept.
Solve by difficulty
EASYWhich one of the following symptoms is not due to manganese toxicity in plants?
Concepts Covered - 0
Mineral Toxicity
- The following graph demonstrates how deficiency of any macroelement or microelement reduces growth.
- As the mineral availability is increased, growth increases.
- As the mineral content continues to be increased there is not much further increase in growth, but other qualities of the plant may be continuing to increase.
- This zone is called the luxury consumption zone.
- However, continuing to increase the mineral concentration ultimately reaches toxic levels and growth is diminished.
- The mineral ion concentration at which the dry weight of tissue is reduced by 10% is called its toxic concentration.
- Toxic concentration is different for different micronutrients. It varies from plant to plant.
- Manganese is toxic beyond 600 microgram/gram for soybean but for sunflower, it is toxic beyond 5300 microgram/gram.
- Toxicity of one mineral may induce a deficiency of other minerals. For example, deficiency of Mn causes deficiency of Fe, Mg and Ca.
- The prominent symptom of Mn toxicity is brown spots surrounded by chlorotic veins.
- Due to the toxicity of Mn following effects are seen
- Reduction in the uptake of Mg and Fe
- Prevention of binding of Mg with enzymes
- Inhibition of Ca translocation to shoot apex
"Stay in the loop. Receive exam news, study resources, and expert advice!"
Get Answer to all your questions
Begin a career in Medical and Allied Sciences. Admissions Open for
Get Job Ready in Healthcare | Employability-Focused Programs
MAHE Manipal BSc Nursing 2026
ApplyLast Date to Apply: 26th April | NAAC A++ Accredited | NIRF Rank #3
Virohan Allied & Healthcare Programs
ApplyAllied & Healthcare programs | 20+ Partner Universities & Institutes | 98% placement record
Amity University Noida | Allied Health Sciences Admissions
ApplyRanked as India’s #1 Not for profit pvt. University by India Today
SCSVMV Deemed to be University | AHA Admissions 2026
ApplyAlied Health Sciences at SCSVMV | NAAC 'A' Grade | AICTE & UGC Aproved | 100% Placement Support | Merit-based Scholarships
RV University Allied & Healthcare Admissions 2026
ApplyIndustry-Relevant Programmes with Clinical Excellence. Merit-based scholarships available