Vitamin A is required for the maintenance of normal vision. A deficiency in vitamin A can lead to visual disturbances. In the eyes, a form of vitamin A called retinal is combined with a protein called opsin to give rhodopsin, an essential light absorbing molecule needed for color vision and seeing in dim light.
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Vitamin A is required for the maintenance of normal vision. A deficiency in vitamin A can lead to visual disturbances. In the eyes, a form of vitamin A called retinal is combined with a protein called opsin to give rhodopsin, an essential light absorbing molecule needed for color vision and seeing in dim light.
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Ammonium iron(II) sulfate, or Mohr's salt, is the inorganic compound with the formula (NH₄)₂Fe(SO₄)₂(H₂O)₆. Containing two different cations, Fe²⁺ and NH₄⁺, it is classified as a double salt of ferrous sulfate and ammonium sulfate.Ammonium iron(II) sulfate, or Mohr's salt, is the inorganic compound with the formula (NH₄)₂Fe(SO₄)₂(H₂O)₆. Containing two different cations, Fe²⁺ and NH₄⁺, it is classified as a double salt of ferrous sulfate and ammonium sulfate.