
Which one of the following helps in absorption of phosphorus from soil by plants?
A. Anabaena
B. Glomus
C. Rhizobium
D. Frankia
Answer
465.6k+ views
Hint: Phosphorus is absorbed in the form of phosphate ions from the soil. It is stored in developing fruits, seeds, storage organs, and young meristematic tissue. It is a constituent of cell membranes, certain proteins, nucleotides, nucleic acids (DNA and RNA), ATP, NADP, and nucleoproteins.
Complete answer:
Anabaena: It is a filamentous cyanobacterium. They are also known as blue-green algae. Cyanobacteria like Anabaena are associated with symbiotic relationships with almost every group of plants and have been used for reclaiming usar soils. They have nitrogen-fixing abilities and as they can live in a damp or aquatic habitat, they enrich the root environment in any wetland condition as in rice fields.
Glomus: It is a mycorrhizal fungus and participates in symbiotic relationships with plant roots. They benefit the plants in uptake of phosphorus from the soil, production of growth hormones, increase of proteins, lipids, and sugars. It plays a significant role in mobilizing phosphorus from the impenetrable layers of the soil and supplying it to the plant.
Rhizobium: It is gram-negative, motile, diazotrophic bacteria that fix nitrogen in a symbiotic relationship with the roots of a leguminous plant. To express nitrogen-fixing genes, it requires the association of a leguminous plant. It is present in the root nodule which usually appears pink in color due to the presence of leghemoglobin pigment which acts as an O2 scavenger.
Frankia: It is a nitrogen-fixing bacteria that participate in a symbiotic relationship with actinorhizal plants.
Therefore, the answer is (B) Glomus.
Note:
Phosphorus is required for all phosphorylation reactions. ATP contains energy-rich phosphate bonds. Its deficiency causes purple or red spots on leaves and delay in seed germination.
Complete answer:
Anabaena: It is a filamentous cyanobacterium. They are also known as blue-green algae. Cyanobacteria like Anabaena are associated with symbiotic relationships with almost every group of plants and have been used for reclaiming usar soils. They have nitrogen-fixing abilities and as they can live in a damp or aquatic habitat, they enrich the root environment in any wetland condition as in rice fields.
Glomus: It is a mycorrhizal fungus and participates in symbiotic relationships with plant roots. They benefit the plants in uptake of phosphorus from the soil, production of growth hormones, increase of proteins, lipids, and sugars. It plays a significant role in mobilizing phosphorus from the impenetrable layers of the soil and supplying it to the plant.
Rhizobium: It is gram-negative, motile, diazotrophic bacteria that fix nitrogen in a symbiotic relationship with the roots of a leguminous plant. To express nitrogen-fixing genes, it requires the association of a leguminous plant. It is present in the root nodule which usually appears pink in color due to the presence of leghemoglobin pigment which acts as an O2 scavenger.
Frankia: It is a nitrogen-fixing bacteria that participate in a symbiotic relationship with actinorhizal plants.
Therefore, the answer is (B) Glomus.
Note:
Phosphorus is required for all phosphorylation reactions. ATP contains energy-rich phosphate bonds. Its deficiency causes purple or red spots on leaves and delay in seed germination.
Recently Updated Pages
Glucose when reduced with HI and red Phosphorus gives class 11 chemistry CBSE

The highest possible oxidation states of Uranium and class 11 chemistry CBSE

Find the value of x if the mode of the following data class 11 maths CBSE

Which of the following can be used in the Friedel Crafts class 11 chemistry CBSE

A sphere of mass 40 kg is attracted by a second sphere class 11 physics CBSE

Statement I Reactivity of aluminium decreases when class 11 chemistry CBSE

Trending doubts
10 examples of friction in our daily life

One Metric ton is equal to kg A 10000 B 1000 C 100 class 11 physics CBSE

Difference Between Prokaryotic Cells and Eukaryotic Cells

State and prove Bernoullis theorem class 11 physics CBSE

What organs are located on the left side of your body class 11 biology CBSE

How many valence electrons does nitrogen have class 11 chemistry CBSE
