CONNECT ACCESS FOR BIOL 01204 <C>
12th Edition
ISBN: 9781264443123
Author: Raven
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 9, Problem 2A
The ion Ca2+ can act as a second messenger because it is
a. produced by the enzyme calcium synthase.
b. normally at a high level in the cytoplasm.
c. normally at a low level in the cytoplasm.
d. stored in the cytoplasm.
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The Na/K pump in epithelium cells that line the gut is an example of ______ transport and helps __
Select one:
a.
active, prevent the movement of Cl- outside the cell
b.
active, prevent the movement of Cl- inside the cell
c.
active, prevent the movement of Na+ outside the cell
d.
passive, prevent the movement of Cl- outside the cell
e.
passive, prevent the movement of Cl- inside the cell
Which of these statements about ion movement through the plasmamembrane is true?a. Movement of Na+ out of the cell requires energy (ATP).b. When Ca2+binds to proteins in ion channels, the diffusion of Na+into the cell is inhibited.c. Specific ion channels regulate the diffusion of Na+ through theplasma membrane.d. All of these are true
Which of the following statements about "leak channels" in the plasma mem-
brane is correct?
A. Proteins that form these channels bind to solutes to allow them to pass into
the cell.
B. They are passageways formed by proteins to allow water and ions to move
passively through the membrane.
C. They allow small ions and molecules to move between adjacent cells.
D. They are formed by glycoprotein and proteoglycans to allow hormones to
enter cells.
Chapter 9 Solutions
CONNECT ACCESS FOR BIOL 01204 <C>
Ch. 9.1 - Prob. 1LOCh. 9.1 - Prob. 2LOCh. 9.2 - Prob. 1LOCh. 9.3 - Prob. 1LOCh. 9.3 - Prob. 2LOCh. 9.4 - Prob. 1LOCh. 9.4 - Describe how information crosses the membrane in...Ch. 9.4 - Prob. 3LOCh. 9.4 - Prob. 4LOCh. 9.5 - Prob. 1LO
Ch. 9.5 - Prob. 2LOCh. 9 - Paracrine signaling is characterized by ligands...Ch. 9 - Signal transduction pathways a. are necessary for...Ch. 9 - The function of a ____is to add phosphates to...Ch. 9 - Which of the following receptor types is NOT a...Ch. 9 - How does the function of an intracellular receptor...Ch. 9 - Signaling through receptor tyrosine kinases often...Ch. 9 - Prob. 7UCh. 9 - Which of the following best describes the...Ch. 9 - Prob. 1ACh. 9 - The ion Ca2+ can act as a second messenger because...Ch. 9 - Different receptors can have the same effect on a...Ch. 9 - In comparing small G proteins like Ras and GPCR...Ch. 9 - Prob. 5ACh. 9 - The receptors for steroid hormones and peptide...Ch. 9 - Describe the common features found in all examples...Ch. 9 - The sheet of cells that form the gut epithelium...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Molecule X binds to a receptor that works as an ion channel. Which of the following must betrue of this receptor?A. It allows passage of only one type of ion.B. It is found in the cytosol of the cell.C. It is voltage dependent.D. It is slow to produce a response in the cell.arrow_forwardThe resting membrane potential of a cell is the consequence of which of the following concentrations of ions? A. High K* and Cl- outside the cell and high Na* and large anions inside the cell. B. High K* and Na* outside the cell and high Cl- and large anions inside the cell. C. High Cl- and Nat outside the cell and high K* and large cations inside the cell. D. High Ca2+ and Nat outside the cell and high K* and large cations inside the cell.arrow_forwardchoose one: a. Steroids are hormones processed by their target cells at the plasma membrane b. Steroids are hormones which are able to be dissolved in water c. Steroids are made from cholesterol a type of fat d. Steroids do not use nuclear receptorsarrow_forward
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