CUSTOM BIOLOGY
19th Edition
ISBN: 9781323945490
Author: Urry
Publisher: Pearson Custom Publishing
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Textbook Question
Chapter 45, Problem 11TYU
Level 3: Synthesis/Evaluation
11. WRITE ABOUT A THEME: INTERACTIONS In a Short essay (100-150 words), discuss the role of hormones in an animal's responses to changes in its environment. Use specific examples.
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Hormones move through the circulatory system and come in contact with
all tissues in the body. Whether a group of cells is targeted by a particular
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Positive feedback loops are used in chemical messaging in the body. Below is a list of steps that describe how a positive feedback system works in chemical messaging. The list is out of order. Placed the list in the proper order.
1. A sensor in a persons finger senses a change in the bloodstream.
2. The chemical messenger triggers the production of a specialized protein in the finger in response to the original signal.
3. A chemical messenger is released from the brain and travels to the finger.
4. As the specialized protein is made in the finger, it triggers the production of even more specialized protein.
5. The brain determines that conditions are no longer in homeostasis.
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Chapter 45 Solutions
CUSTOM BIOLOGY
Ch. 45.1 - How do response mechanisms in target cells differ...Ch. 45.1 - What type of gland would you expect to secrete...Ch. 45.1 - WHAT IF? Predict what would happen if you...Ch. 45.2 - What are the roles of oxytocin and prolactin in...Ch. 45.2 - How do the two fused glands of the pituitary gland...Ch. 45.2 - WHAT IF? 2192 Propose an explanation for why...Ch. 45.2 - what if? Lab tests of two patients, each...Ch. 45.3 - If a hormone pathway produces a transient response...Ch. 45.3 - Prob. 2CCCh. 45.3 - Prob. 3CC
Ch. 45 - MAKE CONNECTIONS What forms of signaling activate...Ch. 45 - Which major endocrine organs described in Figure...Ch. 45 - Prob. 45.3CRCh. 45 - Prob. 1TYUCh. 45 - Prob. 2TYUCh. 45 - Growth factors are local regulators that (A) are...Ch. 45 - Prob. 4TYUCh. 45 - Prob. 5TYUCh. 45 - Which of the following is the most likely...Ch. 45 - The relationship between the insect hormones...Ch. 45 - DRAW IT In mammals, milk production by mammary...Ch. 45 - Prob. 9TYUCh. 45 - Prob. 10TYUCh. 45 - Level 3: Synthesis/Evaluation 11. WRITE ABOUT A...Ch. 45 - Prob. 12TYU
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- Define homeostasis. What happens when homeostasis fails? List the three basic components of a control system and give an example. Describe the components of a reflex pathway. Contrast the response loop and the feedback loop. Explain the relationship between a regulated physiological variable and its setpoint. Is the physiological variable exactly at its setpoint? Compare and contrast negative and positive feedback. Give a biological example of each. Is the setpoint constant or can it change over time? If setpoints can change over time, what is this called? Chapter 2:arrow_forwardIn 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 cytoplasmarrow_forwardPain control system :-a- is activated whenever a painful stimulus is applied to body tissuesb- is never activated naturallyc- is activated only by administration of opiate drugsd- is activated naturally under conditions associated with strong emotional excitementarrow_forward
- Which of the following statements is truc a. Neurotransmitters must bind to a receptor to exert an action on a cell but hormones do not have to bind to a receptor to exert an action b. The nervous system effects are longer lasting than the endocrine system c. The nervous system effects are faster to respond than the endocrine system d. The nervous system releases neurotransmitters into the bloodstream similar to how the endocrine system releases hormones into the bloodstreamarrow_forwardMatch the methods of functionality for the nervous system and endrocrine system. uses an electrical signal to trigger a respnse 1. nervous uses a chemical messager to trigger a response 2. endrocrinearrow_forwardLabel feedback loop of body fluid homeostasis: kidney anatomy (stimulus, sensor, response, set point)arrow_forward
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