Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 7, Problem 20TYK
In response to low blood pressure, the adrenal glands release aldosterone (a small steroid hormone). By which transport mechanism will aldosterone enter body cells?
- a. endocytosis
- b. simple diffusion
- c. facilitated diffusion
- d. active transport using a cotransport protein
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Which is a passive transport process?
a. Receptor-mediated endocytosis
b. Ion pump
c. Pinocytosis
d. Phagocytosis
e. Osmosis
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
The diffusion of water across a selectively permeable membrane is called?
A. Active transport
B. Facilitated diffusion
C. Osmosis
D. Cell membrane
Chapter 7 Solutions
Study Guide for Campbell Biology
Ch. 7 - Label the components in the following diagram of a...Ch. 7 - a. Cite some experimental evidence that indicates...Ch. 7 - List the six major functions that membrane...Ch. 7 - What types of molecules have difficulty crossing...Ch. 7 - A solution of 1 M glucose is separated by a...Ch. 7 - a. What osmotic problems does the freshwater...Ch. 7 - Prob. 7IQCh. 7 - Prob. 8IQCh. 7 - a. How is cholesterol transported into human...Ch. 7 - Create a concept map to illustrate your...
Ch. 7 - The following diagram illustrates passive and...Ch. 7 - If a single layer of phospholipids coats the water...Ch. 7 - Glycoproteins and glycolipids are important for a....Ch. 7 - Prob. 3TYKCh. 7 - Prob. 4TYKCh. 7 - Prob. 5TYKCh. 7 - Use the following U-tube setup to answer questions...Ch. 7 - Use the following U-tube setup to answer questions...Ch. 7 - Use the following U-tube setup to answer questions...Ch. 7 - How much work is expended in diffusion? a. an...Ch. 7 - Prob. 10TYKCh. 7 - Prob. 11TYKCh. 7 - Water passes quickly through cell membranes...Ch. 7 - Facilitated diffusion of ions across a cellular...Ch. 7 - Prob. 14TYKCh. 7 - Which of the following describes cotransport? a....Ch. 7 - Prob. 16TYKCh. 7 - An animal cell moves potassium against its...Ch. 7 - Prob. 18TYKCh. 7 - Prob. 19TYKCh. 7 - In response to low blood pressure, the adrenal...
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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.arrow_forwardWhich process uses special proteins on the surface of the membraneto identify specific molecules for transport into the cell?a. phagocytosisb. pinocytosisc. receptor-mediated endocytosisd. exocytosisarrow_forwardIn which situation would passive transport not use a transport protein for entry into a cell? a. water flowing into a hypertonic environment b. glucose being absorbed from the blood c. an ion flowing into a nerve cell to create an electrical potential d. oxygen moving into a cell after oxygen deprivationarrow_forward
- 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.arrow_forwardWhich observation would suggest that active transport, rather than passive diffusion, is responsible for moving a particular substance from the outside of a cell into a cell? a. a higher concentration of the substance outside the cell than inside the cell. b. a higher concentration of the substance inside the cell than outside the cell. c. a positive correlation between ATP breakdown and the amount of substance taken in. d. b and c are both correct.arrow_forwardWhat controls the direction of movement of ions across the membrane? A. Peripheral proteins B. Channel proteins C. Plasmodesmata D. Carrier proteinsarrow_forward
- Proteins like albumin in the blood maintain water inside the blood vessels using A. Osmotic pressure B. Active diffusion C. Active transport D. Diffusionarrow_forwardWhat determines which way materials move during diffusion and osmosis? a. concentration gradient b. polarity c. crenation d. particle sizearrow_forwardExplain the process and give an example of each form of cellular transport. a. Passive Diffusion b. Active Transport c. Facilitated Diffusionarrow_forward
- Why does the plasma membrane of a cell present a barrier to the movement of electrolytes through it? A. There are no channels in the membrane for the passage of electrolytes. B. Electrolytes are not soluble in the lipid of the membrane. C. Electrolytes are too large to pass through membrane channels. D. Membrane proteins electrically repel charged particles.arrow_forwardWhat is the function of tight junctions? a. To allow cells to move b. To keep cells from moving c. To seal neighboring cells together and prevent leakage of d. extracellular molecules† e. To keep cancer cells together, forming a tumorarrow_forwardWhich is not a function of plasma membrane proteins? a. Recieving signals from outside the cell or from the environment b. Binding to other cells c. Acting as enzymes in glycolytic reactions d. Transporting materials into the cell e. Providing a channel for transmembrane passage of lipophobic charged ions such as Na+ or Cl-arrow_forward
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