Lactose metabolism - Study guides, Class notes & Summaries

Energy sources - Carbs and protein= 4 cal/gram; fat= 9 cal/gram; the brain uses glucose for energy, uses ketone bodies during starvation Tissue storage of glucose - Muscles and liver= store glycogen; adipose tissue= fat; cellular mass= protein stores Gluconeogenesis= conversion of non-carb sources into glucose by glycerol and amino acids Homeostasis - Keeps the internal environment/temp of the body at a state of equilibrium Cellular oxidation - Enzymes= proteins, organic catalysts tha...

BIO 1A03 TEST 2 QUESTIONS AND ANSWERS ALREADY PASSED The lacZand lacY genes are transcribed when a) lactose is absent and glucose levels are high. b)lactose is present and glucose levels are low. c)lactose is present, regardless of the level of glucose in the cell. d) glucose levels are low, regardless of the level of lactose in the cell. b) The CRP-cAMP complex binds the lactose operon when a) glucose levels and cAMP levels are low. b) glucose levels are high and cAMP levels are low. c)...

Honors Biology Final Exam 2024 with Verified Solutions What is the role of microtubules in cell division? Microtubules form the mitotic spindle, which helps separate chromosomes into daughter cells during cell division. How does the concept of endosymbiosis explain the origin of mitochondria and chloroplasts? Endosymbiosis suggests that mitochondria and chloroplasts originated from free-living prokaryotes that were engulfed by a host cell, establishing a mutualistic relationship...

ATI SOURCES OF NUTRITION CHAPTER 1 o Carbs: energy for the body  130g/day  45%-65% of calories  Monosaccharides: glucose (corn syrup), fructose (fruits), galactose (in milk)  Basic energy for cells  Disaccharides: sucrose (table syrup), lactose (milk sugar, maltose (malt sugar)  Energy  Polysaccharides: starches (grains, legumes, root veggies, fiber (whole grains, fruits, veggies)  Energy, storage/digestive aid: ATI NUTRITION INGESTION, DIGESTION, ABSORPTION, M...

What will be the effect on transcription when an inhibitor is in play? A. Allow transcription B. Prevent transcription - Answer-B Explanation: An inhibitor prevents activator from binding to DNA; activators are used in positive regulation (increasing transcription) - thus, the inhibitor prevents the activator from positive regulating (increasing) transcription. What will be the effect on transcription when an inducer is in play? A. Allow transcription B. Prevent transcription - Answer-A Ex...

What will be the effect on transcription when an inhibitor is in play? A. Allow transcription B. Prevent transcription - Answer-B Explanation: An inhibitor prevents activator from binding to DNA; activators are used in positive regulation (increasing transcription) - thus, the inhibitor prevents the activator from positive regulating (increasing) transcription. What will be the effect on transcription when an inducer is in play? A. Allow transcription B. Prevent transcription - Answer-A Ex...

iology 1000 – Principles of Biology ( BioS 115 Core II: Genetics) Exam Study Guide. Explain the concepts of penetrance and expressivity Penetrance is the percentage of cases in which a certain phenotype is expressed. There are two types: i. Complete Penetrance: when 100% is correlated to the genotype. So, all express the same thing. ii. Incomplete: this is when some are identical, and others are different. Penetrance= # with genotype showing phenotype x 100 # with the genotype Expressi...

Chinese Americans correct answers Language: Mandarin Largest subgroups in US in California, Hawaii, Texas, and New York Ideals based on teachings of Confucius and emphasize accountability, filial piety, industry, patriotism, tolerance, patience, thrift, courtesy, and tradition Many immigrated to US for gold mine rush in 1800s and transcontinental railroad Newer immigrants came for political asylum (communism) Atheism is state-sponsored religion Chinese Americans: Religion corre...

Chapter 4 Hole's Human Anatomy & Physiology 9th edition David Shier, Ricki Lewis, Jackie Butler,2024 Test Bank for chapter 4 Cellular Metabolism complete (multiple choice, true or false and case studies) ________________________________________ Cellular Metabolism Case Study: Lactose Intolerant Lactose Intolerance Case Presentation Pei, a twenty-six year old Asian graduate student in computer science, had been experiencing occasional discomfort after meals. The discomfort reached a ne...

TEST BANK FOR LUTZ'S NUTRITION AND DIET THERAPY 7TH EDITION BY MAZUR AND LITCH. The Role of Nutrients in the Human Body 1. Nutrition in Human Health 2. Carbohydrates 3. Fats 4. Protein 5. Energy Balance 6. Vitamins 7. Minerals 8. Water 9. Digestion, Absorption, Metabolism, and Excretion II. Family and Community Nutrition 10. Life Cycle Nutrition: Pregnancy and Lactation 11. Life Cycle Nutrition: Infancy, Childhood, and Adolescence Chapter 1. Nutrition in Human Health Multiple Choic...