Apedia

Absorbed Meristematic Acids Fe Enzymes Cu Nitrogen Amino

Nitrogen is absorbed as nitrate, nitrite, or ammonium and is vital for meristematic tissues, amino acids, nucleic acids, vitamins, and hormones. Phosphorus, absorbed as phosphate ions, is crucial for cell membranes, proteins, nucleic acids, and ATP. Potassium (K+) aids in cation-anion balance, protein synthesis, stomatal movement, enzyme activation, and turgor. Calcium (Ca2+) is needed for meristematic and dividing tissues, cell wall synthesis, and mitotic spindle formation. Magnesium (Mg+) activates enzymes for respiration and photosynthesis, is involved in DNA/RNA synthesis, and is a component of chlorophyll. Sulfur (SO42-) is present in amino acids like cysteine and methionine and in coenzymes and vitamins. Iron (Fe3+) is essential for electron transfer (ferredoxin, cytochromes), activates catalase, and is important for chlorophyll formation. Manganese (Mn2+) activates enzymes for photosynthesis, respiration, and nitrogen metabolism, and splits water. Zinc (Zn+) activates enzymes, especially carboxylases, and is involved in auxin synthesis. Copper (Cu2+) is involved in redox reactions and enzyme systems.

Nitrogen is absorbed as nitrate, nitrite, or ammonium and is vital for meristematic tissues, amino acids, nucleic acids, vitamins, and hormones. Phosphorus, absorbed as phosphate ions, is crucial for cell membranes, proteins, nucleic acids, and ATP. Potassium (K+) aids in cation-anion balance, protein synthesis, stomatal movement, enzyme activation, and turgor. Calcium (Ca2+) is needed for meristematic and dividing tissues, cell wall synthesis, and mitotic spindle formation. Magnesium (Mg+) activates enzymes for respiration and photosynthesis, is involved in DNA/RNA synthesis, and is a component of chlorophyll. Sulfur (SO42-) is present in amino acids like cysteine and methionine and in coenzymes and vitamins. Iron (Fe3+) is essential for electron transfer (ferredoxin, cytochromes), activates catalase, and is important for chlorophyll formation. Manganese (Mn2+) activates enzymes for photosynthesis, respiration, and nitrogen metabolism, and splits water. Zinc (Zn+) activates enzymes, especially carboxylases, and is involved in auxin synthesis. Copper (Cu2+) is involved in redox reactions and enzyme systems.

Subject essential nutrients
Q1 Nitrogen
Q1 Answer absorbed as: NO3-, NO2- , NH4+.
required by meristematic tissue and metabolically active cells
main constituent of amino acids, nucleic acids, vitamins, hormones
Q2 Phosphorus
Q2 Answer absorbed as: H2PO4- or HPO42-
-cell membranes, proteins, all nucleic acids, nucleotides, phosphorylation (ATP)
Q3 Potassium
Q3 Answer absorbed as: K+ 
-anion-cation balance, protein synthesis, stomata movement, activation of enzymes, turgidity maintenance
-found in meristematic tissues, buds, leaves, root tips
Q4 Calcium
Q4 Answer absorbed as: Ca2+ 
-required by meristematic and dividing tissue. cell wall synthesis: calcium pectate and middle lamella. 
-mitotic spindle formation, accumulates in older leaves
-involved in metabolism
Q5 Magnesium
Q5 Answer absorbed as: Mg+
-respiration, photosynthesis enzyme activation
-DNA RNA synthesis
-ring structure of chlorophyll
-maintains ribosome structure
-Mg2+ is an activtor for RuBisCO and PEPCase
Q6 Sulphur
Q6 Answer absorbed as: SO42- 
present in amino acids cysteine and methionine
coenzymes, vitamins (thiamine, biotin, CoA enzyme, ferredoxin
Q7 Iron
Q7 Answer absorbed as: Fe3+
-required in larger amts in micronutrients, important protein constituent, transfer of electrons like ferredoxin and cytochromes
-reversibly oxidised from Fe2+ to Fe3+ during ETC.
-activates catalase enzyme
-important for chlorophyll formation
Q8 Manganese
Q8 Answer absorbed as:Mn2+
activates enzymes for photosynthesis, respiration, nitrogen metabolism
-splits water to liberate oxygen 
Q9 Zinc
Q9 Answer absorbed as: Zn+ 
activates enzymes (esp. carboxylases)
-auxin synthesis 
Zn 2+ is an activator of alcohol dehydrogenase 
Q10 Copper
Q10 Answer absorbed as: Cu2+ 
metabolism, associated with enzymes in redox reactions. oxidises from Cuto Cu2+

Learn with these flashcards. Click next, previous, or up to navigate to more flashcards for this subject.

Next card: Kingdom classification r.h whittaker five

Previous card: Micronutrients fe mn cu mo zn b cl

Up to card list: NEET Biology ug