Briefly discuss target cell activation by hormone-receptor interaction.
What will be an ideal response?
The first step is hormone-receptor binding to target cells, but interaction depends on blood levels of the hormone, relative number of receptors for that hormone on or in the target cells, and the strength of the union between the hormone and the receptor.
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Each of the following is a function of proteins except one. Identify the exception.
A) storage of genetic information B) catalyst C) transport D) support and structure E) carrying of messages
Bones are covered and lined by a protective tissue called periosteum. The inner (osteogenic) layer consists primarily of ________.
cartilage and compact bone marrow and osteons chondrocytes and osteocytes osteoblasts and osteoclasts
The ____ gland stimulates the release of calcium and phosphate ions into the blood when calcium levels become too low
a. thyroid b. pineal c. parathyroid d. pituitary
Which organ system includes blood vessels and the heart?
A) lymphatic system B) cardiovascular system C) respiratory system D) endocrine system