Question

Hormones can be differentiated from neurotransmitters on the basis of the fact that

• A. Hormones modify cellular activity
• B. Hormones are secreted into the bloodstream
• C. Hormones produce a change in animal behavior
• D. Hormones attach to receptors on the cell surface
• E. Hormones are released in response to external stimuli

Answer 1

The correct option is B Hormones are secreted into the bloodstream

Neurotransmitters are the chemical messenger that is released from an axon terminal of a neuron in response to an action potential. Whereas a hormone is a long distance chemical mediator that is secreted by an endocrine gland into the blood which is transported to target cells. Thus, the correct answer is option B.