Calcium ions move out of the cell against a concentration gradient. What drives this active transport?...
Calcium ions move out of the cell against a concentration gradient. What drives this active transport?
a) vesicles fusing with the membrane
b) receptor-mediated exocytosis
c) diffusion
d) hydrolysis of ATP
Homework Answers
- Calcium ions move out of the cell against a concentration gradient. What derives this active transport?
Hydrolysis of ATP, this process requires energy. Calcium ions movement is mediated through calcium pump and Na+-K+ ion exchange mechanism to balance ion concentration.
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Calcium ions move out of the cell against a concentration
gradient. What drives this active transport?...
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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...
Magnesium ions move out of a cell through a transmembrane protein down (i.e. with) their concentration...
Magnesium ions move out of a cell through a transmembrane protein down (i.e. with) their concentration gradient. The energy harvested from this movement of magnesium ions is used to move sodium ions into the cell against their concentration gradient. This is an example of which type of transport? symport ABC transport antiport facilitated diffusion
33) Which of the following is most likely true of a protein that cotransports glucose and...
33) Which of the following is most likely true of a protein that cotransports glucose and sodium ions into the intestinal cells of an animal? A) Sodium and glucose bind to the same site on the cotransporter. B) Transport of glucose against its concentration gradient provides energy for uptake of sodium ions against the electrochemical gradient. C) Sodium ions can be transported whether or not glucose is present outside the cell, but glucose transport requires cotransport of sodium ions. D)...
Transporters move molecules against their concentration gradient by: A. Facilitating passive diffusion. B. Using the energy...
Transporters move molecules against their concentration gradient by: A. Facilitating passive diffusion. B. Using the energy of ATP hydrolysis. C. Coupling to the concentration gradient of another molecule. D. A and B E. B and C F. A and C G. None of the above. H. All of the above
Which of the following processes only moves substances into a cell? exocytosis active transport endocytosis facilitated...
Which of the following processes only moves substances into a cell? exocytosis active transport endocytosis facilitated diffusion What process do white blood cells use to engulf bacteria? pinocytosis phagocytosis receptor-mediated endocytosis exocytosis
Question 35 2 pts Energy is indirectly used to co-transport hydrogen ions and glucose sugar across...
Question 35 2 pts Energy is indirectly used to co-transport hydrogen ions and glucose sugar across the cell membrane, against the concentration gradient of the glucose. This scenario describes facilitated diffusion. secondary active transport. simple diffusion. primary active transport. - Previous Next →
Chapter 3 Cells and Their Functions ESCRIBE METHODS BY WHICH SUBSTANCES ENTER AND LEAVE CELLS THAT REQUIRE CELLULAR...
Chapter 3 Cells and Their Functions ESCRIBE METHODS BY WHICH SUBSTANCES ENTER AND LEAVE CELLS THAT REQUIRE CELLULAR ENERGY。 EXERCISE 3-7 Write the appropriate term in each blank from the list below exocytosis endocytosis active transport diffusion osmosis filtration pinocytosis 1. The process that utilizes a carrier to move materials across the plasma membrane against the concentration gradient using ATP 2. The movement of fluids through a membrane using a pressure gradient 3. The movement of water down its concentration...
ements. 3 Select the key choices that chancerize each of the followving sta Insert the appropriate...
ements. 3 Select the key choices that chancerize each of the followving sta Insert the appropriate answers in the answer blanks. Key Choices A Active transport B. Diffusion, C. Diffusion, osmosis F.Filtration G. Phagocytosis D. Exocytosis H. Pinocytosis simple E. Facilitated diffusion 1. Receptor-mediated endocytosis 1. Engulfment processes that require ATP 2. Driven by molecular enecgy 3. Driven by hydrostatic (lui) pressure (typically blood pressure in the body) 4. Moves dowh a concentration gradient 5. Moves up (agains) a concentration...
Chapter 3 Cells and Their Functions 6. DESCRIBE METHODS BY WHICH SUBSTANCES ENTER AND LEAVE CELLS...
Chapter 3 Cells and Their Functions 6. DESCRIBE METHODS BY WHICH SUBSTANCES ENTER AND LEAVE CELLS THAT REQUIRE CELLULAR ENERGY. EXERCISE 3-7 Write the appropriate term in each blank from the list below. exocytosis endocytosis active transport diffusion osmosis filtration pinocytosis 1. The process that utilizes a carrier to move materials across the plasma membrane against the concentration gradient using ATP 2. The movement of fluids through a membrane using a pressure gradient 3. The movement of water down its...
#13 Phosphorylation of PDH makes the complex ______________. a) Active b)Inactive #14 Ca++ has ____________ effect...
#13 Phosphorylation of PDH makes the complex ______________. a) Active b)Inactive #14 Ca++ has ____________ effect on activity of TCA cycle enzymes. a) Positive b) Negative #15 Electron transport chain occurs in a) Matrix of mitochondria b) Outer membrane of mitochondria c) Inner membrane of mitochondria d) cytoplasm #16 According to Chemiosmotic theory _________________ drives ATP production in electron transport chain. a) Gradient of Hydrogen ions b) Gradient to ATP c) Gradient of Oxaloacetate d) Oxygen #17 Proteins of electron...
Magnesium ions move out of a cell through a transmembrane protein down (i.e. with) their concentration gradient. The energy harvested from this movement of magnesium ions is used to move sodium ions into the cell against their concentration gradient. This is an example of which type of transport? symport ABC transport antiport facilitated diffusion
33) Which of the following is most likely true of a protein that cotransports glucose and sodium ions into the intestinal cells of an animal? A) Sodium and glucose bind to the same site on the cotransporter. B) Transport of glucose against its concentration gradient provides energy for uptake of sodium ions against the electrochemical gradient. C) Sodium ions can be transported whether or not glucose is present outside the cell, but glucose transport requires cotransport of sodium ions. D)...
Which of the following processes only moves substances into a cell? exocytosis active transport endocytosis facilitated diffusion What process do white blood cells use to engulf bacteria? pinocytosis phagocytosis receptor-mediated endocytosis exocytosis
Question 35 2 pts Energy is indirectly used to co-transport hydrogen ions and glucose sugar across the cell membrane, against the concentration gradient of the glucose. This scenario describes facilitated diffusion. secondary active transport. simple diffusion. primary active transport. - Previous Next →
Chapter 3 Cells and Their Functions ESCRIBE METHODS BY WHICH SUBSTANCES ENTER AND LEAVE CELLS THAT REQUIRE CELLULAR ENERGY。 EXERCISE 3-7 Write the appropriate term in each blank from the list below exocytosis endocytosis active transport diffusion osmosis filtration pinocytosis 1. The process that utilizes a carrier to move materials across the plasma membrane against the concentration gradient using ATP 2. The movement of fluids through a membrane using a pressure gradient 3. The movement of water down its concentration...
ements. 3 Select the key choices that chancerize each of the followving sta Insert the appropriate answers in the answer blanks. Key Choices A Active transport B. Diffusion, C. Diffusion, osmosis F.Filtration G. Phagocytosis D. Exocytosis H. Pinocytosis simple E. Facilitated diffusion 1. Receptor-mediated endocytosis 1. Engulfment processes that require ATP 2. Driven by molecular enecgy 3. Driven by hydrostatic (lui) pressure (typically blood pressure in the body) 4. Moves dowh a concentration gradient 5. Moves up (agains) a concentration...
Chapter 3 Cells and Their Functions 6. DESCRIBE METHODS BY WHICH SUBSTANCES ENTER AND LEAVE CELLS THAT REQUIRE CELLULAR ENERGY. EXERCISE 3-7 Write the appropriate term in each blank from the list below. exocytosis endocytosis active transport diffusion osmosis filtration pinocytosis 1. The process that utilizes a carrier to move materials across the plasma membrane against the concentration gradient using ATP 2. The movement of fluids through a membrane using a pressure gradient 3. The movement of water down its...
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