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Biology NEET - XI: Chapter 12- Mineral Nutrition Part 3

Biology25 CardsCreated about 2 months ago

This flashcard deck covers key concepts from Chapter 12 of the Biology NEET curriculum, focusing on mineral nutrition and related deficiencies, absorption processes, and nitrogen fixation.

Heart rot of sugarbeet is caused due to the deficiency of

B
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Key Terms

Term
Definition
Heart rot of sugarbeet is caused due to the deficiency of
B
Hollow stem of cauliflower is caused due to the deficiency of
B
Loosening of inflorescence of cauliflower is caused due to the deficiency of
Mo
Whiptail of cauliflower is caused due to the deficiency of
B
Bronze colour of leaves is caused due to the deficiency of
Cl
Abscission of flowers is caused due to the deficiency of which elements?
Cl, N, S, Mo

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TermDefinition
Heart rot of sugarbeet is caused due to the deficiency of
B
Hollow stem of cauliflower is caused due to the deficiency of
B
Loosening of inflorescence of cauliflower is caused due to the deficiency of
Mo
Whiptail of cauliflower is caused due to the deficiency of
B
Bronze colour of leaves is caused due to the deficiency of
Cl
Abscission of flowers is caused due to the deficiency of which elements?
Cl, N, S, Mo
Deficiency of N, K and Mg are first seen in which parts of the plant?
Olderleaves
Inhibition of cell division occurs due to the deficiency of which elements?
N, K, S, Mo
Toxic concentration is that concentration of mineral element in plants which reduces the weight of the tissues by
10%
The appearance of brown spots surrounded chlorotic veins in plants signifies
Mn toxicity
Excess of Mn may induce the deficiency of
Mg and Ca
How are elements absorbed in plants in the first phase?
Passively
How are elements absorbed in the second phase in plants?
Actively
Which element is called the most critical element in plants?
Nitrogen
What is diazotrophy?
Biological nitrogen fixation
Does Rhodospirillum fix nitrogen aerobically or anaerobically?
Anaerobically
Does Bacillus fix nitrogen aerobically or anaerobically?
Anaerobically
Does azotobacter fix nitrogen aerobically or anaerobically?
Aerobically
Does beijernickia fix nitrogen aerobically or anaerobically?
Aerobically
Which symbiotic bacteria is found in the roots of Alnus?
Frankia
Which bacteria help in ammonification of atmospheric nitrogen?
Bacillus
Nitrites are formed by which bacteria?
Nitrococcus, nitrosomonas
Nitrates are formed by which bacteria?
Nitrocysits and nitrobacter
Which bacteria cause denitrification?
Thiobacillus and Pseudomonas
What is the role of nitrate reductase?
Conversion of nitrates into ammonia