SEELEY'S ANATOMY+PHYSIOLOGY
12th Edition
ISBN: 9781260172195
Author: VanPutte
Publisher: RENT MCG
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Chapter 17.4, Problem 27AYP
Summary Introduction
To analyze:
The function of G protein in altering the permeability and the synthesis of cAMP along with examples.
Introduction:
A signal transduction pathway is a group of proteins and polysaccharides that carry the signals generated by the binding of the signaling molecule. The signals carried, leading to conformational changes in the proteins that further trigger a cascade of reactions leading to a cellular response.
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List four intracellular mediators affected by G proteins.
Describe the THREE classes of plasma membrane receptors.
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Chapter 17 Solutions
SEELEY'S ANATOMY+PHYSIOLOGY
Ch. 17.1 - How does an endocrine gland differ from an...Ch. 17.1 - Prob. 2AYPCh. 17.1 - In what ways does the nervous system differ from...Ch. 17.1 - Name and describe the four classes of chemical...Ch. 17.2 - Prob. 5AYPCh. 17.2 - Prob. 6AYPCh. 17.2 - Prob. 7AYPCh. 17.2 - What effect does a bound hormone have on the...Ch. 17.2 - What are the two chemical categories of hormones?...Ch. 17.2 - Describe how the chemical nature of a hormone...
Ch. 17.2 - Prob. 11AYPCh. 17.2 - Why do organs regulated by protein hormones have...Ch. 17.2 - Prob. 13AYPCh. 17.2 - Describe chronic, acute, and episodic patterns of...Ch. 17.3 - Describe and give examples of the three major ways...Ch. 17.3 - Prob. 16AYPCh. 17.4 - What characteristics ofa hormone receptor make...Ch. 17.4 - What is down-regulation, and what may cause it to...Ch. 17.4 - Prob. 19AYPCh. 17.4 - What are the two classes of hormone receptors? How...Ch. 17.4 - Prob. 21AYPCh. 17.4 - Prob. 22AYPCh. 17.4 - Prob. 23AYPCh. 17.4 - What two ways can a membrane-bound receptor use to...Ch. 17.4 - Explain how the hormone-receptor complex can alter...Ch. 17.4 - List four intracellular mediators affected by G...Ch. 17.4 - Prob. 27AYPCh. 17.4 - Prob. 28AYPCh. 17.4 - Prob. 29AYPCh. 17.4 - Prob. 30AYPCh. 17 - Prob. 1RACCh. 17 - Prob. 2RACCh. 17 - Which of these can regulate the secretion of a...Ch. 17 - Prob. 4RACCh. 17 - Prob. 5RACCh. 17 - Concerning the half-lifeof hormones, a....Ch. 17 - Prob. 7RACCh. 17 - Prob. 8RACCh. 17 - Prob. 9RACCh. 17 - Prob. 10RACCh. 17 - Prob. 11RACCh. 17 - Which of these can limit a cell's response to a...Ch. 17 - Prob. 13RACCh. 17 - Prob. 14RACCh. 17 - When a hormone binds to a nuclear receptor a. DNA...Ch. 17 - Prob. 16RACCh. 17 - Prob. 1CTCh. 17 - Prob. 2CTCh. 17 - Prob. 3CTCh. 17 - Prob. 4CTCh. 17 - Prob. 5CTCh. 17 - Prob. 6CTCh. 17 - Thyroid hormones are important in regulating the...Ch. 17 - Prob. 8CTCh. 17 - Prob. 9CT
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- What limits the activity of intracellular mediators, such ascGMP, and phosphorylated proteins?arrow_forwardGap junctions and tunneling nanotubes are two distinct types of direct intracellular communication. In comparing and contrasting gap junctions and tunneling nanotubes, which of the following statements is true? gap junctions provide a portal for small molecules, proteins and small organelles to move from cell to cell, tunneling nanotubes only permit small molecules to pass between cells typically, there are only two gap junctions that exist between adjacent cells that are communicating via this mechanism; on the other hand, there are many tunneling nanotubes between communicating cells both gap junctions and tunneling nanotubes can pass small molecules between cells none of the above is truearrow_forwardExplain Extracellular signals can be delivered by diffusion or by cell-to-cell contact.arrow_forward
- Describe three ways in which the response of a cell to asignal can be terminated.arrow_forwardList four ways by which substances cross the cell membrane and explain the role of lysosomes and peroxisomes in digesting material taken into cells by phagocytosis.arrow_forwardBriefly explain how integral membrane proteins can participate in intracellular signaling.arrow_forward
- illustrate some of the major points concerning G proteins, plasma membrane effector proteins, second messengers, and protein kinasesarrow_forwardProteins in the plasma membrane are often the target of medicines.Discuss why you think this is the case. How would you determineexperimentally that a specific membrane protein was the target of adrug?arrow_forwardA cell signaling molecule that triggers an effect only in the vicinity of the cell secreting is is an example of ?arrow_forward
- Second-messenger systems ultimately bring about the desired cell response by inducing a change in the shape and function of particular designated intracellular proteins. (True or false?)arrow_forwardOutline the three general means by which binding of a water soluble extracellular chemical messenger to its matching surface membrane receptor brings about the desired intracellular response.arrow_forwardWhich of the following happens if the concentration of potassium in the extracellular fluid increases too much?A) Potassium would be taken up by the oligodendrocytes, so no net change in signaaaling would result. B) No signaling could occur. C) The Neuron would become hyperexcitable D) The sodium pumps would immediately fix the situation, so no net change in signaling would result.arrow_forward
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