I. Metabolism is the elimination of metabolic wastes including nitrogenous wastes produced from the breakdown of proteins. II. Diffusion is the movement of water from a region of higher osmolarity to a region of lower osmolarity across a selectively permeable membrane. A. If the two statements are both correct B. If the first statement is correct while the second one is not C. If the second statement is correct while the first one is not D. If the two statements are both incorrect I. The functional units of the kidney where urine is formed. II. Kidneys serve as specialized organs for osmoregulation and excretion A. If the two statements are both correct B. If the first statement is correct while the second one is not C. If the second statement is correct while the first one is not D. If the two statements are both incorrect

I. Metabolism is the elimination of metabolic wastes including nitrogenous wastes produced from the breakdown of proteins. II. Diffusion is the movement of water from a region of higher osmolarity to a region of lower osmolarity across a selectively permeable membrane. A. If the two statements are both correct B. If the first statement is correct while the second one is not C. If the second statement is correct while the first one is not D. If the two statements are both incorrect I. The functional units of the kidney where urine is formed. II. Kidneys serve as specialized organs for osmoregulation and excretion A. If the two statements are both correct B. If the first statement is correct while the second one is not C. If the second statement is correct while the first one is not D. If the two statements are both incorrect

Body Structures & Functions Updated

13th Edition

ISBN:9780357191606

Author:Scott

Publisher:Scott

Chapter17: Respiratory System

Section: Chapter Questions

Problem 2RQ

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The image illustrates passive and active transport across the cell membrane. (Use the diagram to answer questions A-C) A. 1. Which section shows active transport?2. Explain why or how can you tell?3. Does the cell expend energy in this transport?4. Why or why not? B. 1. Which section shows diffusion?2. What type of solute molecules may be moved by this type of transport? C. Which of these sections are considered passive transport? Explain.
The image illustrates passive and active transport across the cell membrane. (Use the diagram to answer questions A-D) A. 1. Which section represents facilitated diffusion?2. Explain why or how can you tell?3. Does the cell expend energy in this transport?4. Why or why not?5. What type of solute molecules may be moved by this type of transport? B. 1. Which section shows active transport?2. Explain why or how can you tell?3. Does the cell expend energy in this transport?4. Why or why not? C. 1. Which section shows diffusion?2. What type of solute molecules may be moved by this type of transport? D. Which of these sections are considered passive transport? Explain.
Osmosis is the flow of solution from higher concentration to a solution of lower concentration through a semi permeable membrane. What is incorrect in this statement? A. Exact concentration of solution is not given B. Character of semi permeable membrane is not given C. The flow of solution is not possible through semi permeable membrane D. All are incorrect
Which of these processes are membrane-crossing mechanisms that require no energy input? Select all that apply. A. Osmosis B. Facilitated diffusion C. Sodium-potassium pump
Which process—diffusion, osmosis, or filtration—is utilized in the following situations? a. Injection of a drug that is hypertonic to the tissues stimulates pain. b. The urea concentration in the dialyzing fluid of an artificial kidney is decreased.
Na+ moves from high to low concentration, across the plasma membrane, through a protein channel that is permenantly open. Which statement is true about this process? a. It does not require ATP b. It is a form of active transport c. Movement is against the concentration gradient of Na+ d. The channel probably allows many different molecules and ions to cross
Select the letter of the choice that best completes the statement. Oxygen moves from an area of higher concentration through a process calleda. active transport.b. osmosis.c. diffusion.d. filtration.
The process of “active transport" through a membrane may be described by which of the following? A. the movement of ions and small molecules away from regions where they are in high concentration. B. the use of energy from ATP to move ions and small molecules into regions where they are in lower concentration. C. the plasma membrane engulfs the substance and moves it through the membrane. D. the use of energy from ATP to move ions and small molecules against their concentration gradient.
What of the following would cause a cell to shrink? A. Increased activity of the sodium-potassium pump B. Increased heart rate OC. Increased water absorption by the kidneys OD. Increased Intracellular osmolarity S BURDEN
Match the definition with the term. a. to shrink or shrivel b. water moving through selectively permeable membrane c. substance dissolved in a solution d. to burst a red blood cell e. difference between solute concentrations across a membrane f. same solute concentration on both sides of membrane g. lower concentration of solutes outside the cell than in cytosol of cell h. a fluid that contains dissolved substances i. higher concentration of solutes outside the cell than in cytosol of cell j. random movement of particles from their greater concentration to their lesser concentration ____ 1. concentration gradient ____ 2. crenate ____ 3. diffusion ____ 4. hemolysis ____ 5. hypertonic solution ____ 6. hypotonic solution ____ 7. isotonic solution ____ 8. osmosis ____ 9. solute ____ 10. solvent
Choose the best answer When a cell is placed in a hypertonic solution,a. solute exits the cell to equalize the concentration on both sides ofthe membrane.b. water exits the cell toward the area of lower solute concentration.c. water exits the cell toward the area of higher soluteconcentration.d. there is no net movement of water or solute.
Explain in 2-3 sentencesDescription:Examples in the body: a. Diffusion b. Osmosis c. Facilitated Diffusion