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SCN1111 Endocrine Questions Exam And Correct Answers
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SCN1111 Endocrine Questions ExamAnd Correct Answers
How is hormonal secretion usually controlled?
Endocrine reflex
Positive feedback loop
Negative feedback loop
Endocrine feedback loop - Answer Negative feedback loop
In the endocrine system, which type of cells are signaled by hormones sent by secreting
cells?
Neurons
Basal cells
Target cells
Effector cells - Answer Target cells
What can all glands in the body can be classified as?
Exocrine or holocrine
Exocrine or endocrine
Endocrine or apocrine
Endocrine or holocrine - Answer Exocrine or endocrine
What is the role of the endocrine system?
Secretion of hormones
Integration of information
Defense against harmful agents
Maintenance of a constant fluid balance - Answer Secretion of hormones
What is an appropriate way to classify hormones?
Steroid or cortisol
Steroid or nonsteroid
, Protein or nonprotein
Cortisol or glycoprotein - Answer Steroid or nonsteroid
What is the action that takes place between hormones when one hormone produces the
opposite effect of another hormone?
Synergism
Antagonism
Opposability
Permissiveness - Answer Antagonism
If synthesis of new receptors occurs faster than degradation of old receptors, the target
cell will have more receptors and thus be more sensitive to the hormone. What is this
phenomenon called?
Upregulation
Downregulation
First messenger model
Second messenger model - Answer Upregulation
Which endocrine glands are located within the cranial cavity? (more than 1)
Thymus
Pineal gland
Pituitary gland
Hypothalamus
Parathyroid gland - Answer Pineal gland
Pituitary gland
Hypothalamus
Which property enables steroid hormones to attach to soluble plasma proteins while
travelling in the blood plasma?
Lipid-solubility
Water-solubility
Presence of receptors inside the cell
Presence of receptors on the surface of the plasma membrane - Answer Lipid-solubility
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