3 The Cellular Level of Organization The three main parts of the cell include all of the following EXCEPT a) the plasma membrane b) the cytoplasm c) the nucleus d) the cytosol Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization The three main parts of the cell include all of the following EXCEPT a) the plasma membrane b) the cytoplasm c) the nucleus d) the cytosol Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization The lipid bilayer of the plasma membrane permits passage of a) charged molecules into the cell only b) lipid soluble molecules out of the cell only c) charged molecules into and out of the cell d) lipid soluble molecules into and out of the cell Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization The lipid bilayer of the plasma membrane permits passage of a) charged molecules into the cell only b) lipid soluble molecules out of the cell only c) charged molecules into and out of the cell d) lipid soluble molecules into and out of the cell Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization Which of the following is NOT a function of membrane proteins? a) enzyme b) receptor c) hormone d) ion channel Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization Which of the following is NOT a function of membrane proteins? a) enzyme b) receptor c) hormone d) ion channel Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization Which of the following transport processes requires energy? a) carrier-mediated facilitated diffusion b) active transport c) simple diffusion d) osmosis Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization Which of the following transport processes requires energy? a) carrier-mediated facilitated diffusion b) active transport c) simple diffusion d) osmosis Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization The sodium-potassium pump moves a) three sodium into the cell and two potassium out of the cell b) two sodium out of the cell and three potassium into the cell c) three sodium out of the cell and two potassium into the cell d) two sodium into the cell and three potassium out of the cell Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization The sodium-potassium pump moves a) three sodium into the cell and two potassium out of the cell b) two sodium out of the cell and three potassium into the cell c) three sodium out of the cell and two potassium into the cell d) two sodium into the cell and three potassium out of the cell Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization Which of the following is NOT a component of the cellular cytoskeleton? a) microfilaments b) microtubules c) intermediate filaments d) microvilli Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization Which of the following is NOT a component of the cellular cytoskeleton? a) microfilaments b) microtubules c) intermediate filaments d) microvilli Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization The cellular organelles that synthesize proteins are the a) endoplasmic reticulum b) ribosomes c) lysosomes d) mitochondria Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization The cellular organelles that synthesize proteins are the a) endoplasmic reticulum b) ribosomes c) lysosomes d) mitochondria Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization Fatty acids and steroids are synthesized by the a) smooth endoplasmic reticulum b) Golgi complex c) rough endoplasmic reticulum d) mitochondria Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization Fatty acids and steroids are synthesized by the a) smooth endoplasmic reticulum b) Golgi complex c) rough endoplasmic reticulum d) mitochondria Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization The nuclear envelope is composed of ___ lipid bilayers. a) one b) two c) three d) none, it is not composed of lipid bilayers Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization The nuclear envelope is composed of ___ lipid bilayers. a) one b) two c) three d) none, it is not composed of lipid bilayers Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization The process of converting DNA into RNA is a) transcription b) translation c) coding d) recombination Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization The process of converting DNA into RNA is a) transcription b) translation c) coding d) recombination Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization Which stage of mitosis is illustrated in the figure? Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization a) prophase b) metaphase c) anaphase d) telophase Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization a) prophase b) metaphase c) anaphase d) telophase Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization This figure demonstrates what occurs during crossing over. In which phase of meiosis does crossing over occur? Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization a) prophase I b) prophase II c) metaphase I d) metaphase II Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization a) prophase I b) prophase II c) metaphase I d) metaphase II Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization In this figure, the indicated area is the Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization a) nucleus b) chromatin c) nuclear pore d) nucleolus Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization a) nucleus b) chromatin c) nuclear pore d) nucleolus Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization The area indicated in the mitochondrion is the Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization a) inner membrane b) cristae c) matrix d) ribosome Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization a) inner membrane b) cristae c) matrix d) ribosome Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization Joseph suffered a heart attack due to an occluded coronary artery depriving his cardiac muscle cells of O2. Which organelle’s function was most directly impacted? a) lysosomes b) endoplasmic Reticulum c) Golgi apparatus d) mitochondria e) All cellular organelles utilize O2. Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization Joseph suffered a heart attack due to an occluded coronary artery depriving his cardiac muscle cells of O2. Which organelle’s function was most directly impacted? a) lysosomes b) endoplasmic Reticulum c) Golgi apparatus d) mitochondria e) All cellular organelles utilize O2. Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization When CPR is performed, some O2-rich blood reaches Joseph’s cells. How can this accumulating extracellular O2 cross the plasma membrane, a selectively permeable barrier, so it can be used inside the cell? a) active transport b) passive transport c) simple diffusion d) carrier-mediated facilitated diffusion e) Two of these choices are O2 transporting mechanisms. Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization When CPR is performed, some O2-rich blood reaches Joseph’s cells. How can this accumulating extracellular O2 cross the plasma membrane, a selectively permeable barrier, so it can be used inside the cell? a) active transport b) passive transport c) simple diffusion d) carrier-mediated facilitated diffusion e) Two of these choices are O2 transporting mechanisms. Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization Despite cholesterol’s “bad reputation,” identify one vital cellular function of this lipid. a) It is a plasma membrane component essential in regulating membrane fluidity. b) It is a component of the electron transport chain needed for ATP production. c) It is secreted by exocytosis to serve as a signaling molecule. d) It is part of the SERCA pump that controls muscle contraction. e) It serves as a coenzyme for acid hydrolases stored in the lysosome. Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization Despite cholesterol’s “bad reputation,” identify one vital cellular function of this lipid. a) It is a plasma membrane component essential in regulating membrane fluidity. b) It is a component of the electron transport chain needed for ATP production. c) It is secreted by exocytosis to serve as a signaling molecule. d) It is part of the SERCA pump that controls muscle contraction. e) It serves as a coenzyme for acid hydrolases stored in the lysosome. Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization What is the connection between active transport and cellular O2 use? a) Depriving the nucleus of O2 prevents it from activating the genes needed to make active transport carriers. b) O2 is directly used as an energy source to power active transport. c) O2 is needed to make ATP, which is directly used to power primary active transport. d) As O2 levels decrease, cellular CO2 increases resulting in an elevated cytosolic pH, which denatures the enzymes needed to produce the ATP to drive active transport. e) Two of these choices connect active transport and cellular O2 use. Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization What is the connection between active transport and cellular O2 use? a) Depriving the nucleus of O2 prevents it from activating the genes needed to make active transport carriers. b) O2 is directly used as an energy source to power active transport. c) O2 is needed to make ATP, which is directly used to power primary active transport. d) As O2 levels decrease, cellular CO2 increases resulting in an elevated cytosolic pH, which denatures the enzymes needed to produce the ATP to drive active transport. e) Two of these choices connect active transport and cellular O2 use. Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization Identify a transport mechanism for moving glucose across the plasma membrane and into a cell. a) Glucose crosses the membrane by simple diffusion since it is a small, non-polar molecule. b) Glucose moves by osmosis with water molecules crossing the membrane. c) Because glucose is a macromolecule, it must undergo endocytosis in a clathrin-coated vesicle. d) Glucose utilizes secondary active transport via a calciumglucose antiporter. e) Glucose utilizes secondary active transport via a sodiumglucose symporter. Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization Identify a transport mechanism for moving glucose across the plasma membrane and into a cell. a) Glucose crosses the membrane by simple diffusion since it is a small, non-polar molecule. b) Glucose moves by osmosis with water molecules crossing the membrane. c) Because glucose is a macromolecule, it must undergo endocytosis in a clathrin-coated vesicle. d) Glucose utilizes secondary active transport via a calciumglucose antiporter. e) Glucose utilizes secondary active transport via a sodiumglucose symporter. Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization What key transport mechanism is normally responsible for maintaining crucial plasma membrane gradients? a) the sodium-glucose antiporter b) the sodium-hydrogen ion symporter c) the calcium ATPase d) the sodium-potassium pump e) the potassium-chloride antiporter Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization What key transport mechanism is normally responsible for maintaining crucial plasma membrane gradients? a) the sodium-glucose antiporter b) the sodium-hydrogen ion symporter c) the calcium ATPase d) the sodium-potassium pump e) the potassium-chloride antiporter Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization The cytosol will become ____ causing water to move ____ the cell by the process of ____. This results in cell ____. a) isotonic; inside of; osmosis; plasmolysis b) hypertonic; inside of; osmosis; lysis c) hypertonic; inside of; osmosis; crenation d) hypotonic; out of; diffusion; crenation e) hypotonic; out of; osmosis; lysis Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization The cytosol will become ____ causing water to move ____ the cell by the process of ____. This results in cell ____. a) isotonic; inside of; osmosis; plasmolysis b) hypertonic; inside of; osmosis; lysis c) hypertonic; inside of; osmosis; crenation d) hypotonic; out of; diffusion; crenation e) hypotonic; out of; osmosis; lysis Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization Following Joseph’s heart attack and subsequent inability to generate ATP, which of the following cellular processes will be directly impaired? a) protein synthesis b) ciliary movement c) vesicle transport d) hydrogen ion pumping into lysosomes to lower internal pH e) All of these functions would be directly impaired without available ATP. Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization Following Joseph’s heart attack and subsequent inability to generate ATP, which of the following cellular processes will be directly impaired? a) protein synthesis b) ciliary movement c) vesicle transport d) hydrogen ion pumping into lysosomes to lower internal pH e) All of these functions would be directly impaired without available ATP. Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization What is the function of the endoplasmic reticulum (ER)? a) The rough ER is involved in the production of secretory proteins. b) The rough ER is a site of fatty acid synthesis. c) The smooth ER serves as a calcium storage compartment. d) The smooth ER is crucial for detoxifying harmful substances. e) The ER is responsible for each of these cellular functions. Copyright © 2015 John Wiley & Sons, Inc. All rights reserved. 3 The Cellular Level of Organization What is the function of the endoplasmic reticulum (ER)? a) The rough ER is involved in the production of secretory proteins. b) The rough ER is a site of fatty acid synthesis. c) The smooth ER serves as a calcium storage compartment. d) The smooth ER is crucial for detoxifying harmful substances. e) The ER is responsible for each of these cellular functions. Copyright © 2015 John Wiley & Sons, Inc. All rights reserved.
