A correct distinction between facilitated diffusion and active transport of a substance across a biological membrane...
A correct distinction between facilitated diffusion and active transport of a substance across a biological membrane is that . . .
A. active transport requires conformational changes in the transport protein associated with the transport process, and facillitated diffusion does not.
B. active transport requires integral membrane protein to carry out the transport, and facillitated diffusion does not.
C. facilitated diffusion depends on an existing energy gradient acting on the transported substance, while active transport makes such a gradient.
D. facilitated diffusion requires a protein lined pore in the membrane, and active transport does not.
E. facilitated diffusion requires energy from ATP hyrdolysis, but active transport does not.
Homework Answers
The correct option is C. facilitated diffusion depends on an existing energy gradient acting on the transported substance, while active transport makes such a gradient.
Facilitated diffusion process depends on an existing energy gradient. This process does not directly involve energy in the form of ATP or GTP. Therefore, the molecules move along their concentration gradient.
Particles move against the concentration gradient in the process of active transport. Therefore, this process requires an input of energy in the form of ATP from the cell.
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A correct distinction between facilitated diffusion and active
transport of a substance across a biological membrane...
ane Transport - Facilitated Diffusion Side with higher concentration of molecules Transport protein Plasma membrane Facilitated...
ane Transport - Facilitated Diffusion Side with higher concentration of molecules Transport protein Plasma membrane Facilitated diffusion causes a net movement of molecules down their concentration gradient. mework : Membrane Transport - Active Transport Side with higher concentration of square molecules Transport protein Energy input from the cell Plasma membrane Side with lower concentration of square molecules
How does facilitated diffusion differ from simple diffusion? Facilitated diffusion requires ATP Facilitated diffusion requires a...
How does facilitated diffusion differ from simple diffusion? Facilitated diffusion requires ATP Facilitated diffusion requires a solute-specific protein carrier Facilitated diffusion transports solute against its’ concentration gradient Which of the following is TRUE about primary active cell membrane transport? It is a form of transport that requires a protein “pump” It is a form of transport that transports ions and/or solute against their concentration gradient It is a transport mechanism that requires energy released from the splitting of ATP by...
For a substance crossing a cell membrane, the chemical driving force Select one: a. depends only...
For a substance crossing a cell membrane, the chemical driving force Select one: a. depends only on the concentration gradient if the substance is uncharged, but also depends on the electrical force if the substance is an ion. b. is the force that pushes molecules across the membrane, but only if the substance is actively transported. c. depends only on the concentration gradient, regardless of whether or not the substance is an ion d. is the total driving force on...
Please summarize this chapter typed clearly. Diffusion Is a passive process of transport. A single substance...
Please summarize this chapter
typed clearly.
Diffusion Is a passive process of transport. A single substance tends to move from an area of high concentration to an area of low concentration until the concentration is equal across a space. Facilitated transport Facilitated diffusion is the process of spontaneous passive transport of molecules or ions across a biological membrane via specific transmembrane integral proteins. Channels The integral proteins involved in facilitated transport are collectively referred to as transport proteins, and they...
Classify the phrases based on whether they describe or give an example of facilitated diffusion, active...
Classify the phrases based on whether they describe or give an example of facilitated diffusion, active transport, or both. Facilitated diffusion Active transport Both Answer Bank movement to area of lower concentration movement across a membrane movement assisted by proteins glucose transport into muscle cell sodium ion transport out of cell requires energy
Which one of the following is NOT common between active transport and facilitated diffusion? chemical specificity...
Which one of the following is NOT common between active transport and facilitated diffusion? chemical specificity use of energy use of protein carrier
NH HO HO Man Protein HO HO- Man or What type of membrane protein is shown...
NH HO HO Man Protein HO HO- Man or What type of membrane protein is shown below? Glycoprotein Man HO- HNo HO OR OH OM o0 wtracedular cell membrane eytesel Integral membrane protein GPI-anchored protein Peripheral membrane protein membrane proteins are bound primarily by electrostatic and hydrogen-bond interactions with the head groups of lipids. Peripheral membrane protein O Integral membrane protein GPI-anchored protein An antiporter and a symporter are examples of: passive diffusion Osecondary active transport O primary active transporters...
Facilitated diffusion: A) transports solute up its concentration gradient. B) transports solute down its concentration gradient. C) does not require a transport protein. D) requires ATP hydrolysis for...
Facilitated diffusion: A) transports solute up its concentration gradient. B) transports solute down its concentration gradient. C) does not require a transport protein. D) requires ATP hydrolysis for transport to occur.
Facilitated diffusion: A) transports solute up its concentration gradient. B) transports solute down its concentration gradient....
Facilitated diffusion: A) transports solute up its concentration gradient. B) transports solute down its concentration gradient. C) does not require a transport protein. D) requires ATP hydrolysis for transport to occur.
cell biology Which of the following is an active transport mechanism? a Facilitated diffusion of potassium...
cell biology Which of the following is an active transport mechanism? a Facilitated diffusion of potassium ions across the membrane through an open potassium channel b Movement of water into a cell c Sodium ions moving out of an animal cell bathed in physiological saline d Movement of CO2 out of a cell e None of the above
ane Transport - Facilitated Diffusion Side with higher concentration of molecules Transport protein Plasma membrane Facilitated diffusion causes a net movement of molecules down their concentration gradient. mework : Membrane Transport - Active Transport Side with higher concentration of square molecules Transport protein Energy input from the cell Plasma membrane Side with lower concentration of square molecules
Please summarize this chapter
typed clearly.
Diffusion Is a passive process of transport. A single substance tends to move from an area of high concentration to an area of low concentration until the concentration is equal across a space. Facilitated transport Facilitated diffusion is the process of spontaneous passive transport of molecules or ions across a biological membrane via specific transmembrane integral proteins. Channels The integral proteins involved in facilitated transport are collectively referred to as transport proteins, and they...
Classify the phrases based on whether they describe or give an example of facilitated diffusion, active transport, or both. Facilitated diffusion Active transport Both Answer Bank movement to area of lower concentration movement across a membrane movement assisted by proteins glucose transport into muscle cell sodium ion transport out of cell requires energy
Which one of the following is NOT common between active transport and facilitated diffusion? chemical specificity use of energy use of protein carrier
NH HO HO Man Protein HO HO- Man or What type of membrane protein is shown below? Glycoprotein Man HO- HNo HO OR OH OM o0 wtracedular cell membrane eytesel Integral membrane protein GPI-anchored protein Peripheral membrane protein membrane proteins are bound primarily by electrostatic and hydrogen-bond interactions with the head groups of lipids. Peripheral membrane protein O Integral membrane protein GPI-anchored protein An antiporter and a symporter are examples of: passive diffusion Osecondary active transport O primary active transporters...
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