A hormone is a regulatory molecule that is secreted into the blood by an endocrine gland. What is wrong with this definition?

Question

A.  Endocrine glands are the target of these molecules, not the source.
B.  It does not apply to this type of molecule in plants.
C.  The molecules do not serve a regulatory role.
D.  The definition is completely correct as stated.

Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?

Gather Content
What do you already know about hormones? What other information is related to the question?

Choose Answer
Given what you now know, what information is most likely to produce the correct answer?

Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

Answer 1

B.  It does not apply to this type of molecule in plants.

Clarify Question
What is the key concept addressed by the question?
        · What is the definition of a hormone?
What type of thinking is required?
            o This is an analyze question because you have to take the common usage of the term hormone in human or other animal bodies and expand it to regulatory molecules in other organisms.

Gather Content
What do you already know about hormones? What other information is related to the question?
        · You already know that hormones are regulatory molecules that travel through our bloodstream. But are animals with blood the only organism that utilize hormones? No, plants do as well although this is not described in this chapter.

Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
        · Endocrine glands are the source of hormones, not the reverse, and yes, hormones serve a regulatory role. What is wrong with this definition is that it does not apply to hormones in plants which are not secreted by endocrine glands into blood.

Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
        o Answering this question correctly depended upon evaluating the validity of each option. If you selected the correct answer, great! If not, what happened? Did you think that the definition is completely correct as stated because you forgot that plants use hormones as well? Did you forget that hormones are produced by endocrine glands and not the target of them (although they can be)?