The Endocrine System can be complex to learn; map out one of the "chains" of three hormones that you learned in the lecture. For example, Hormone 1 is released by X. This targets Y which releases Hormone B, which targets Z and causes Hormone C to be released. (Hint: most of these hormone chains will begin with a Hormone from the Hypothalamus).

Correctly order (from first to last) the steps involved in the Steroid mechanism of hormone action the harmone receptor complex is formed the steroid homorne diffuses into a cell's cytoplasm the hormone-receptor complex transloacates into the cell's nucleus transcription occurs followed by translation a newly formed protein initiates a cellular response the steroid harmone detaches from its protein carrier

Be able to describe the difference between a hormone whose release is controlled by hormonal factors and a hormone whose release is controlled by humoral factors.

In comparison to protein hormones, steroid hormones: (Select all that apply). O Have a longer half-life O Have a shorter half life O Are water-soluble O Are lipid-soluble O Can cross the cell membrane O Cannot cross the cell membrane Can interact with receptors on the cell surface O Can interact with receptors in the nucleus or cytoplasm

Be able describe peptide hormones in terms of their hydrophilicity or hydrophobicity, their ½ life, and the location of their receptors. (NOTE: TH does not fit into the general pattern).

A hormone is said to have a _______ effect when it's presence enhances the effect of another hormone: secondary antagonistic synergistic permissive

What does the feedback loop for Vincent look like? be sure to indicate all the hormones and glands involved in the feedback loop. indicate whether the hormone levels are increasing or decreasing. use arrows to indicate the direction of influence and label whether it is a negative or positive feedback.

Think of the Endocrine System. Hormones occur in which major different chemical categories? List two characteristics for each category and explain their generalized working.

Melatonin is a hormone made by the pineal gland, a small gland in the brain. Melatonin helps control your sleep and wake cycles. Evaluate each statement below and select the statement that best describes the pathway. Select one: a. Light on the retina stimulates the hypothalamus to send a signal to the pineal gland to stop producing melatonin, signalling the body to go to sleep. b. Light on the retina stimulates the hypothalamus to send a signal to the pineal gland to increase the production of melatonin, signalling the body to go to sleep. c. Light on the retina stimulates the hypothalamus to send a signal to the pineal gland to stop producing melatonin, signalling the body to wake up. d. Light on the retina stimulates the hypothalamus to send a signal to the pineal gland to increase the production of melatonin, signalling the body to wake up.

True or false please explain why