Test Bank for Advanced Nutrition and Human Metabolism 8e Sareen Gropper, Jack Smith, Timothy Carr (Answers At The End Of Each Chapter)

Test Bank for Advanced Nutrition and Human Metabolism 8e Sareen Gropper, Jack Smith, Timothy Carr (Answers At The End Of Each Chapter)-1. Membrane lipid bilayers consist primarily of . a. phospholipids b. cholesterol c. proteins d. saturated fatty acids e. enzymes 2. Which of the following is a common function of membrane proteins? a. receptors b. detoxifiers c. purifier d. neutron transporter e. storage proteins 3. What is the role of cholesterol in plasma membrane structure? a. to produce bile b. to regulate fluidity and permeability c. to reduce stability d. to produce hormones e. to catalyze chemical reactions 4. Which of the following is not a usual function of the cytoskeleton? a. locomotion b. generation of ATP c. structural support d. positioning of organelles e. transfer of DNA and RNA 5. Which cellular component enables signal transmission to various parts of the cell due to interconnections within the cytosol? a. glycoproteins b. microfilaments c. glycolipids d. integral proteins e. nucleic acids 6. How are the carbohydrate moieties of the plasma membrane glycoproteins and glycolipids oriented? a. outwardly, away from the cytoplasmic matrix b. inwardly, toward the lumen c. equally inwardly and outwardly to maintain symmetry Name: Class: Date: Chapter 01: The Cell: A Microcosm of Life d. between the bilayers of the membranes e. interlinked with each on both sides of the membrane 7. Which of the following describes proteins attached to the membrane through hydrophobic interactions and embedded in the membrane? a. peripheral proteins b. rough endoplasmic reticula c. integral proteins d. Golgi apparatus e. apoproteins 8. Which structure in the cell provides support and controls the movement of cell organelles? a. endoplasmic reticulum b. mitochondrion c. cytoskeleton d. cytosolic matrix e. nucleus 9. Cytochalasin is a fungal toxin that prevents the polymerization of actin. Which cellular structure is the target? a. nucleus b. cytoskeleton c. lysosomes d. mitochondria e. plasma membrane 10. Which of the following is not normally found in the cytoplasmic matrix of a typical cell? a. amino acids b. glucose-6-phosphate c. carbon dioxide d. urea e. lipids 11. Enzymes of which metabolic pathway can be found in the cytoplasmic matrix? a. beta-oxidation b. glycolysis c. ketone production d. the Kreb’s cycle e. cholesterolsynthesis 12. Which organelle is responsible for the production of most of the metabolic energy (ATP)? a. Golgi apparatus b. endoplasmic reticulum Name: Class: Date: Chapter 01: The Cell: A Microcosm of Life c. nucleus d. mitochondrion e. lysosome 13. Which of the following can freely diffuse across the inner mitochondrial membrane? a. glucose b. oxygen and carbon dioxide c. fatty acids d. NADH e. protons 14. Where are the majority of the components of the electron transport chain embedded? a. mitochondrial inner membrane b. mitochondrial outer membrane c. mitochondrial matrix d. cytoplasmic matrix e. plasma membrane 15. In which organelle do the TCA cycle and fatty acid oxidation occur? a. Golgi apparatus b. nucleus c. microsomes d. mitochondrion e. endoplasmic reticulum 16. What is the major route for ATP production in the cell? a. oxidative phosphorylation b. hydrolysis c. peroxidation d. transformation e. substrate-level phosphorylation 17. Which organelle is capable of performing both fission and fusion? a. Golgi apparatus b. mitochondria c. rough endoplasmic reticulum d. nucleus e. lysosome 18. What do the genes contained in the mitochondrial DNA code for? a. all proteins functioning within the mitochondrial matrix b. nonfunctional ancient proteins considered remnants of evolution