NEET BIOLOGY

PLANT PHYSIOLOGY

TRANSPORT IN PLANT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Plants need magnesium for what?
A
make chlorophyll
B
make the stomata open
C
move sugar
D
energy
Explanation: 

Detailed explanation-1: -Magnesium (Mg) is needed by all crops to help capture the sun’s energy for growth and production through photosynthesis. Photosynthesis takes place in chlorophyll, the green pigment in plants, and magnesium is the central atom of the chlorophyll molecule, with each molecule containing 6.7% magnesium.

Detailed explanation-2: -Magnesium is the central core of the chlorophyll molecule in plant tissue. Thus, if Mg is deficient, the shortage of chlorophyll results in poor and stunted plant growth. Magnesium also helps to activate specific enzyme systems.

Detailed explanation-3: -Chlorophyll contains a Magnesium ion. Four nitrogen atoms surround and bind the Magnesium atom. Magnesium in chlorophyll molecule is located in centre of porphyrin head. This centre uniquely defines the structure as a Chlorophyll molecule.

Detailed explanation-4: -Sulfur is necessary for the formation of chlorophyll (the green pigment in plants that converts light to energy). It promotes healthy roots and lowers soil pH. Without enough sulfur, a plant’s new leaves may appear yellowed. Deficiencies are uncommon, however.

Detailed explanation-5: -Magnesium (Mg) is an essential nutrient for a wide array of fundamental physiological and biochemical processes in plants. It largely involves chlorophyll synthesis, production, transportation, and utilization of photoassimilates, enzyme activation, and protein synthesis.

There is 1 question to complete.