Glucose is transported across the cell membrane of intestinal cells. The cells lining the small intestine, however, rapidly move large quantities of glucose from the glucose-rich food into their glucose-poor cytoplasm. Using this information, which transport mechanism is most probably functioning in the intestinal cells? facilitated diffusion simple diffusion C osmosis concentration gradient

Glucose is transported across the cell membrane of intestinal cells. The cells lining the small intestine, however, rapidly move large quantities of glucose from the glucose-rich food into their glucose-poor cytoplasm. Using this information, which transport mechanism is most probably functioning in the intestinal cells? facilitated diffusion simple diffusion C osmosis concentration gradient

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,...

See similar textbooks

Similar questions

Which of the following statements are correct? Explain your answers. The plasma membrane is highly impermeable to all charged molecules. Channels have specific binding pockets for the solute molecules they allow to pass. Transporters allow solutes to cross a membrane at much faster rates than do channels. Certain H+ pumps are fueled by light energy. The plasma membrane of many animal cells contains open K+ channels, yet the K+ concentration in the cytosol is much higher than outside the cell. A symport would function as an antiport if its orientation in the membrane were reversed (i.e., if the portion of the molecule normally exposed to the cytosol faced the outside of the cell instead). The membrane potential of an axon temporarily becomes more negative when an action potential excites it.
Does sodium chloride dissociate before going through the membrane? I am wondering because in semipermeable membranes, sodium chloride should be able to pass through, but if it dissociates, then it would need a transport protein.
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.
Name the membrane transport mechanism that Ca2* would most likely use to diffuse across the membrane. O simple diffusion O active transport O facilitated diffusion O vesicular transport O more than one of the above
Which of the following characteristics may be used to describe Active Transport? Select all that apply. occurs without a transporter protein requires an energy source shows saturation kinetics (has a maximum rate) can occur against a concentration gradient (i.e. uphill)
Facilitated diffusion is a lipid-mediated process. true false
Cholesterol can be packaged into droplets using LDL (low density lipoprotein). Cells that need to take in cholesterol from the LDL droplets have a protein on their membrane called an LDL receptor.This protein binds to the LDL droplet and brings the cholesterol into the cell by forming a vesicle around it.Which method of membrane transport is involved in this process? 1.Diffusion2.Endocytosis3.Exocytosis4.Osmosis
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
Passive transport across the membrane mediated by a carrier— would not be saturated by increasing amount of substance to be transported. does not require energy (ATP). can be driven in reverse. moves the solute through the membrane in the “uphill” direction of their concentration gradient. is faster than transport mediated by channel proteins.
Compare and contrast the following methods of a passing cell membrane in terms of movement with respect to the concentration gradient, use of ATP, and the use of transporters with examples. (Simple) diffusion vs Facilitated diffusion
Can you explain ACTIVE transport - more specifically how transport is facilitated by proteins (carriers or pumps) OR bulk transport of molecules.
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