1. Fill out the following chart comparing different mechanisms of transport across a plasma membrane: Simple Facilitated Secondary Primary Active Diffusion Diffusion Active Transport Transport Types of molecules transported? (List size, polarity, charge) Requires a carrier or channel protein? (Yes/No) Requires an additional energy source? (Yes/No) Do any molecules travel against their concentration or electrochemical gradients? (Yes/No)

1. Fill out the following chart comparing different mechanisms of transport across a plasma membrane: Simple Facilitated Secondary Primary Active Diffusion Diffusion Active Transport Transport Types of molecules transported? (List size, polarity, charge) Requires a carrier or channel protein? (Yes/No) Requires an additional energy source? (Yes/No) Do any molecules travel against their concentration or electrochemical gradients? (Yes/No)

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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3. Fill in this summary table to compare and contrast types of transport. For secondary, first you need primary active transport to make the gradient. Is cellular energy required? (YES/NO) What powers this transport? (Diffusion/ATP) Is a membrane protein required? (YES/NO) Simple diffusion Facilitated Primary diffusion active transport Secondary active transport
Which of the following will decrease diffusion rate (a.k.a. rate of flux) of a particle across the plasma membrane? O Applying a polymer that makes the particle more hydrophobic. O Changing the diameter of the particle from 1uM to 10uM. O Both of these will decrease diffusion rate ONeither of these will decrease diffusion rate
Define and give examples of the processes: diffusion and active transport.
The cytoplasm of a certain cell is composed of a solution that is 98% water, 2% solutes. Consider the solution shown in the beaker in this picture: FOOE OOS Foor solution. [Select] Cytoplasm is 98% water, 2% solutes. The solution in the beaker would be considered when compared to [Select] The plasma membrane is impermeable to solutes. Beaker solution is 98% water, 2% solutes the cell. We would expect that the cell would [Select] if it was placed in the would account for whatever changes might occur to the volume of the cytoplasm of the cell when it is placed in the solution.
Type of Transport Direction Energy Movement Molecules Do molecules Does the cell| Does it move What type of move from use energy molecules molecules high to low to transport through the move concentration, molecules lipid bilayer through the or low to high this way? or through membrane in concentration? proteins? this way? Diffusion Passive Osmosis Transport Facilitated Diffusion Protein Pump Passive Exоcytosis Transport Endocytosis A. Match each of the following terms with their definitions. Write the letters only. A. The substance that dissolves other Solute substances (e.g. water). B. When the concentration of solute Solvent is higher on the side of the membrane in question than the other.
How does each of the following molecule pass through the plasma membrane in the described scenarios? A. Both simple diffusion and facilitated diffusion B. facilitated diffusion C. simple diffusion D. active transport 1. Molecular oxygen (O2) and carbon dioxide (CO2) traveling downtheir concentration gradient. 2. inorganic ions traveling down their concentration gradient 3. glucose traveling against its concentration gradient 4. water molecules (H2O) traveling down their concentration gradient
One of the following Is not a characteristic of the second Active transport: a- Using the hydrolysis of ATP directly. b- No need for carrier protein C- The movement of substance is with its concentration. d- All of the above
1. The specific molecule that pass through the cell membrane by osmosis . *2. What is one characteristic of a substances that can pass through the cell membrane by simple diffusion?3. A type of active transport that uses the energy stored in the movement of one molecule along its concentration gradient to move another substances against their own gradients.4. The source of energy for the conformational change of membrane proteins in primary active transport.
Diatomic oxygen (O2) exhibits which of the following membrane transport movements? A. it is not able to cross the membrane by passive transport, because it is big, polar, and inorganic it is not able to cross the membrane by active transport, because it is big, polar, and inorganic it is able to cross the membrane by facilitated diffusion, because it is small, polar, and organic it is able to cross the membrane by active transport, because it is big, nonpolar, and organic it is able cross the membrane by simple diffusion, because it is small, nonpolar, and inorganic
What type of cellular transport do Epithelial sodium channels (ENaC)s perform? Group of answer choices Simple diffusion Secondary active transport Facilitated diffusion Primary active transport
Can you create a diagram/flow chart of membrane transport? The diagram must contain both active and passive transport.
What transport mechanism is used when glucose moves in the proximal convoluted tubules of kidneys using sodium ions, ATP, electrochemical gradient, and carrier proteins? Group of answer choices primary active transport secondary active transport facilitated diffusion simple diffusion