Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 24, Problem 33CTQ
Insulin is released when food is ingested and stimulates the uptake of glucose into the cell. Discuss tine mechanism cells employ to create a concentration gradient to ensure continual uptake of glucose from the bloodstream.
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Chapter 24 Solutions
Anatomy & Physiology
Ch. 24 - A monosaccharide is formed from a polysaccharide...Ch. 24 - If anabolic reactions exceed catabolic reactions,...Ch. 24 - When NAD becomes NADH, the coenzyme has been...Ch. 24 - Anabolic reactions use energy by ________. turning...Ch. 24 - Glycolysis results in the production of two...Ch. 24 - The Krebs cycle converts ________ through a cycle...Ch. 24 - Which pathway produces the most ATP molecules?...Ch. 24 - Aerobic cellular respiration results in the...Ch. 24 - When NAD+ becomes NADH, the coenzyme has been...Ch. 24 - Lipids in the diet can be ________. broken down...
Ch. 24 - The gallbladder provides ________ that aid(s) in...Ch. 24 - Triglycerides are transported by chylomicrons...Ch. 24 - Which molecule produces the most ATP?...Ch. 24 - Which molecules can enter the Krebs cycle?...Ch. 24 - Acetyl CoA can be converted to all of the...Ch. 24 - Digestion of proteins begins in the ________ where...Ch. 24 - Amino acids are needed to ________. build new...Ch. 24 - If an amino acid is not used to create new...Ch. 24 - During the absorptive state, glucose levels are...Ch. 24 - Staivation sets in after 3 to 4 days without food....Ch. 24 - The postabsorptive state relies on stores of...Ch. 24 - The bodys temperature is controlled by the...Ch. 24 - Fever increases the body temperature and can...Ch. 24 - The heat you feel on your chair when you stand up...Ch. 24 - A crowded room warms up through the mechanism of...Ch. 24 - A deficiency in vitamin A can result in ________....Ch. 24 - Rickets results in improper bone development in...Ch. 24 - Consuming which type of food will help the most...Ch. 24 - Which of the following is stored in the body?...Ch. 24 - Describe how metabolism can be altered.Ch. 24 - Describe how Addisons disease can be treated.Ch. 24 - Explain how glucose is metabolized to yield ATP.Ch. 24 - Insulin is released when food is ingested and...Ch. 24 - Discuss how carbohydrates can be stored as fat.Ch. 24 - If a diabetics breath smeLls like alcohol, what...Ch. 24 - Amino acids are not stored in the body. Describe...Ch. 24 - Release of trypsin and chymotrypsin in their...Ch. 24 - In type II diabetes, insulin is produced but is...Ch. 24 - Ketone bodies are used as an alternative source of...Ch. 24 - How does vasoconstriction help increase the core...Ch. 24 - How can the ingestion of food increase the body...Ch. 24 - Weight loss and weight gain are complex processes....Ch. 24 - Some low-fat or non-fat foods contain a large...
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- Normally, when blood glucose level increases (e.g. after a meal), the islet cells in the pancreas secrete insulin. When insulin molecules bind to insulin receptors on the surface of a muscle cell, the receptors become activated, initiating a signaling pathway which eventually results in the increase in the number of passive glucose transporter on the muscle cell surface thus increases the uptake of glucose into the cell and decrease blood glucose level. Indicate whether the following conditions/practice will likely lead to diabetes (mark Yes or No). [Select] degeneration of islet cells [Select] [Select] [Select] a mutation in the insulin receptor that increases its kinase activity ✓ exercise a mutation in the insulin receptor that prevents dimerizationarrow_forwardJohn was repeating George Palade's pulse and chase experiment to trace insulin secretion pathway within cells. When he observed his samples under the electron microscope, he saw the ³H]-leucine labelling all over the cells, which indicates that he made some mistakes in carrying out the experiment. Which of the following is a correct suggestion to improve his result? O Use liver sample after the pulse-chase injection O Inject [13C]-leucine instead of [³H]-leucine Inject non-labeled leucine earlier than what he did O Use phase contrast light microscope instead of electron microscope O Observe the sample two days after pulse-chase injectionarrow_forwardWhich of the following statements best describes the absorption of glucose? Absorption of glucose requires digestion by aminopeptidases on absorptive epithelial microvilli before absorption of the carbohydrate smaller units such as glucose. Absorption of glucose requires an electrochemical gradient of high extracellular K+ set up by primary active transport. Absorption of glucose occurs at villi and crypts mainly in the duodenum where amylases break down carbohydrates into glucose. Absorption of glucose occurs at the transporting epithelia in the small intestine and is a secondary active transport that requires a Na+gradientarrow_forward
- Diabetes often results in the production of reduced levels of insulin. Researchers claim that a drug that binds to and blocks the active site of GSK3 might mimic the role of insulin in the pathway shown in Figure 2. Provide reasoning to justify the researchers' claim.arrow_forwardSuppose you are an intern working in a small rural emergency room in Bumblescum, SC. Your hospital is short on nurses and you have to prepare IV fluids for all of your patients. One of your patients is suffering from an insulin overdose and you are trying to regulate her blood sugar back to normal. You decide to administer an intravenous drip of 5% dextrose over an extended period with monitoring. Normally IV bags containing 5% dextrose are available, but due the current healthcare crisis the hospital administrators have decided to order standard bags of 0.9% NaCl. This means you will need to remove a calculated volume of the 0.9% NaCl from the bag and add back the calculated volume of dextrose. A container of 50% dextrose is available in the ER stockroom. How much of the 50% dextrose should be added to the bag if the total IV bag volume will be 1000 mL and a 5% solution is desired?arrow_forwardIn skeletal muscle glucose uptake is by the facilitated diffusion A transporter with is found intracellularly, but localizes to the cell surface upon stimulation by GLUT4 In the liver glucose uptake is by the transporter which move glucose by insulin insulin. A A/ Use the word bank below to fill in the blanks. Selected the best answer and copy exactly to facilitate electronic grading. Word Bank: calcium, epinephrine, facilitated diffusion, glucagon, GLUT1, GLUT2, GLUT4, GLUT5, insulin, primary active transport, secondary active transport, SGLT, simple diffusionarrow_forward
- During stressful situations, some cells in the body convertglycogen to glucose. What effect does this conversion haveon cellular osmotic balance? Explain how cells handle thissituation.arrow_forwardIf a mutation in a sodium channel in an Intestinal epithelial cell caused a marked decrease In the concentration gradient of sodium across the plasma membrane, which of the following would you expect to observe? a decrease in Na/K ATPase activity. an increase in the movement of glucose across the basolateral membrane to the extracellular space an increase in sodium/glucose co-transport into the cell across the apical membrane a decrease in cytoplasmic glucose concentrationarrow_forwardIn order to normalize blood sugar levels after a meal, mammalian systems release insulin and rely on a different enzyme to phosphorylate glucose after it enters liver cells. Explain the mechanisms by which these two systems decreases blood sugar to safe levels.arrow_forward
- what type of glucose transport protein is found in pancreatic beta cells? SGLUT-1 GLUT-2 GLUT-3 GLUT-4 GLUT-5arrow_forwardName three metabolic processes in the cell that are enhanced and two that are inhibited in response to the hormone insulin.arrow_forwardPassive Carrier Transport: For our patient John with diabetes type II, he can make insulin but his body cells can be resistant to this insulin. Note: activated insulin receptors will activate glucose receptors. How does this resistance to insulin affect glucose receptors and lead to increased glucose blood levels? Use the figure below to help explain why.arrow_forward
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