Plants That Are Efficient at Taking Iron Up from a Calcareous

question 41

Multiple Choice

Plants that are efficient at taking iron up from a calcareous soil are known to employ which of the following methods?

• A)lower pH of their rhizosphere
• B)produce reducing agents that reduce Fe³⁺ to Fe²⁺ in the rhizosphere.
• C)produce organic compounds that can form stable chelates with iron.
• D)all of the above
• E)none of the above

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Definitions:

Cerebrospinal Fluid

Cerebrospinal fluid is a clear, colorless body fluid found in the brain and spinal cord, which acts as a cushion and provides a vital function in cerebral autoregulation.

Lysosome

Membrane-bound organelles found in nearly all animal cells that use enzymes to break down waste materials and cellular debris.

Ependymal Cells

Glial cells that line the ventricles in the brain and the central canal of the spinal cord, playing a role in producing and circulating cerebrospinal fluid.

Cerebrospinal Fluid

A clear, colorless body fluid found in the brain and spinal cord, providing mechanical protection, nourishment, and waste removal for neural tissues.