Molecules Toolbox:Glucose H₂OOutside of cellNa+ 0₂NaClInside of cell1) Passive diffusionAmino AcidCO₂ K+ H+Be sure to label all molecules you useand label any additionalmolecules/proteins2) Facilitated diffusionwwwwww!!!Use 2 of these terms to describe the various processesAG+ExergonicAG-3) Generation of a GradientEndergonicOutside of cell!!!!!!!Inside of cell

Passive transport -Against the concentration gradient( low concentration→high concentration)ATP(…

Molecules Toolbox: Glucose H₂O Outside of cell Na+ www 0₂ NaCl 1) Passive diffusion Amino Acid CO₂ K+ H+ RRRRRRRIITTIRRRRRÅÎÏÏÏÅÅÅÅR 2) Facilitated diffusion Be sure to label all molecules you use and label any additional molecules/proteins Use 2 of these terms to describe the various processes RRRRRRTTTTIRRRR w wy AG+ Exergonic 3) Generation of a Gradient AG- Endergonic Outside of cell PRRRRRR Inside of cell

Molecules Toolbox: Glucose H₂O Outside of cell Na+ www 0₂ NaCl 1) Passive diffusion Amino Acid CO₂ K+ H+ RRRRRRRIITTIRRRRRÅÎÏÏÏÅÅÅÅR 2) Facilitated diffusion Be sure to label all molecules you use and label any additional molecules/proteins Use 2 of these terms to describe the various processes RRRRRRTTTTIRRRR w wy AG+ Exergonic 3) Generation of a Gradient AG- Endergonic Outside of cell PRRRRRR Inside of cell

Anatomy & Physiology

1st Edition

ISBN:9781938168130

Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Publisher:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Chapter3: The Cellular Level Of Organization

Section: Chapter Questions

Problem 1ILQ: Visit this link (http://openstaxcollege.org/l/diffusion) to see diffusion and how it is propelled by...

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Vesicle transport occurs between the ER and the Golgi in bothdirections. Let’s suppose a researcher added a drug to cells thatinhibited vesicle transport from the Golgi to the ER but did not affectvesicle transport from the ER to the Golgi. If you observed cellsmicroscopically after the drug was added, what would you expect to seehappen over the course of 1 hour?a. The ER would get smaller, and the Golgi would get larger.b. The ER would get larger, and the Golgi would get smaller.c. The ER and Golgi would stay the same size.d. Both the ER and Golgi would get larger.e. Both the ER and Golgi would get smaller
When fluorescein-dyed human proteins were first mixed with rhodamine-dyed mouse proteins (in mouse/human hybrid cell fusions carried out in the 1970s), these proteins appeared to exhibit: restricted movement, based on confinement by diffusion barriers restricted movement, based on tethering to extracellular molecules unrestricted movement, similar to membrane phospholipids restricted movement, based on anchoring to intracellular proteins restricted movement, based on attachment to other cells
When rhodamine-dyed mouse proteins were first mixed with fluorescein-dyed human proteins (in mouse/human hybrid cell fusions), these proteins appeared to exhibit: restricted movement, based on confinement by diffusion barriers restricted movement, based on tethering to extracellular molecules unrestricted movement, similar to membrane phospholipids restricted movement, based on anchoring to intracellular proteins restricted movement, based on attachment to other cells
Visit this link (http://openstaxcollege.org/l/diffusion) to see diffusion and how it is propelled by the kinetic energy of molecules in solution. How does temperature affect diffusion rate, and why?
A scientist compares the plasma membrane composition of an animal from the Mediterranean coast with one from the Mojave Desert. Which hypothesis is most likely to be correct? The cells from the Mediterranean coast animal will have more fluid plasma membranes The cells from the Mojave Desert animal will have a higher cholesterol concentration in the plasma membranes The cells’ plasma membranes will be indistinguishable The cells from the Mediterranean coast animal will have a higher glycoprotein content, while the cells from the Mojave Desert animal will have a higher lipoprotein content.
Gated transport occurs in which of the following pathways? A: from the cytosol to ______? Endoplasmic reticulum or mitochondria or cell nucleus etc?
Below are listed molecules with different chemical characteristics. Knowing that all molecules will eventually diffuse across a phospholipid bilayer, select the list that most accurately predicts the relative rates of diffusion of these molecules (fastest to slowest) across a biological membrane. alanine, propanol, sodium, estrogen sodium, propanol, alanine, estrogen estrogen, propanol, sodium, alanine estrogen, propanol, alanine, sodium
A young man in his 20s has a heart attack and is rushed to the hospital. Blood is drawn, and his cholesterol level is tested and found to be very high. The doctor tells him that he has a genetic condition in which he is unable to effectively remove LDL particles containing cholesterol from his blood and into his cells. Which cellular process is not functioning normally? a. channel-mediated facilitated diffusion b. receptor-mediated endocytosis c. exocytosis d. simple diffusion?
What we know about diffusion states that the concentration of ions inside and outside a cell should be thesame, but in a neuron, the concentrations of sodium and potassium ions are quite different. How does the cell go against the forces of diffusion?
Simple and facilitated diffusion differ because _____________. simple diffusion requires the presence of a transport protein within the plasma membrane, while facilitated diffusion does not ions being transported by simple diffusion move against their electrochemical gradients, while ions being transported by facilitated diffusion move along their electrochemical gradients 3.facilitated diffusion requires the presence of a transport protein within the plasma membrane, while simple diffusion does not 4. ions being transported by simple diffusion move along their electrochemical gradients, while ions being transported by facilitated diffusion move against their electrochemical gradients
The experiment described in Figure 11-16 was performed at 37 °C. If the experiment were carried out at 10 °C, what effect would you expect on the rate of diffusion? Why?
1) You are studying a transport protein. It appears to bind temporarily to the molecule to be transported. During normal transport, no energy is expended. The addition of a particular molecule that closely resembles the normally transported molecule inhibits transport. An increase in the concentration of the normally transported molecule in the presence of a constant concentration of the inhibitor increases the rate of transport. What kind of transport is described? 2) What are peripheral membrane proteins?