Question

hormone transportation
what type of hormone usually travels in the blood plasma bound to a protein?
hydrophobic hormones
neurotransmitters
hydrophilic hormones
free hormones

Explanation:

Hydrophobic hormones are non - polar. Blood plasma is a water - based (polar) environment. Since "like dissolves like", hydrophobic hormones need to bind to transport proteins (which can interact with both the non - polar hormone and the polar plasma) to be transported in the blood. Neurotransmitters act locally in the nervous system and are not typically transported in the blood in this bound form. Hydrophilic hormones are polar and can dissolve directly in the plasma without the need for a protein carrier. Free hormones are not bound to proteins.

Answer:

Hydrophobic hormones