Answer:
Carrier proteins are involved in facilitated diffusion and active transport of substances out of or into the cell (e.g. diffusion of sugars, amino acids and nucleosides, uptake of glucose, transportation of salts, glucose, amino acids, etc.).
Explanation:
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Answer:
Oxidized.
Explanation:
The complete sentence will be -
When a compound donates electrons, that compound becomes oxidized. Such a compound is often referred to as an electron donor.
The process of being a compound oxidized is termed as oxidation. In this process the oxidation state of the molecule, compound or atom is increased. It always occur in pair with the reduction and these two reactions are collectively termed as redox reactions. These redox reactions are the main source of energy in biological systems.
Answer:
Stem cells.
Explanation:
they differ from other kinds of cells within the body, all stem cells, regardless of their source, have three general properties: they are capable of dividing and renewing themselves for long periods; they are unspecialized; and they can give rise to specialized cell types.