vitamina A

vitamina A

A member of a chemically heterogeneous class of organic compounds that are essential, in small quantities, for life.

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Vārdšķira: noun
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Nozare/domēns: Archaeology
Category: Evolution
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vitamina

Meat products; Poultry

una sustancia necesaria de grasa o soluble en agua, en cantidades muy pequeñas, para el crecimiento normal y el mantenimiento de la vida. Solución añadida al agua de aves de ...

vitaminas

Fitness; Diet

These organic nutrients are essential to health and no healthy diet should disregard them.

vitaminas

Biology; Cell biology

A diverse group of organic molecules that are required for metabolic reactions and generally cannot be synthesized in the body.

vitaminas

Dairy products; Ice cream

Vitamins are organic compounds that are nutritionally necessary in small amounts to control metabolic processes and cannot be synthesized by the body. Vitamins are typically ...

hongos

Archaeology; Evolution

A group of organisms comprising the kingdom Fungi, which includes molds and mushrooms. They can exist either as single cells or make up a multicellular body called a mycelium. ...

ley

Archaeology; Evolution

A description of how a natural phenomenon will occur under certain circumstances.

pirimidina

Archaeology; Evolution

A kind of base. In DNA, cytosine (C) and thymine (T) are pyrimidines. In RNA, cytosine (C) and uracil (U) are pyrimidines.

ecosistema

Archaeology; Evolution

A community of organisms interacting with a particular environment.

célula fotorreceptora

Archaeology; Evolution

A cell, functionally part of the nervous system, that reacts to the presence of light. It usually contains a pigment that undergoes a chemical change when light is absorbed. This ...

mitocondria

Archaeology; Evolution

A kind of organelle in eukaryotic cells. Mitochondria produce enzymes to convert food to energy. They contain DNA coding for some mitochondrial proteins.