Formation of enterocytes - Study guides, Class notes & Summaries

Exam 3 NFS4230 Fall (20% of final grade) Please indicate the one best response 1. Which level of organization determines the final form of the protein molecule called an oligomer? a. primary b. secondary c. tertiary d. quaternary 2. Zwitterions are amino acids that have no net electrical charge because a. their side chains are not charged. b. they migrate to a neutral place in an electrical field. c. they are essential/indispensable. d. they have an amino group in their side chain. 3....

Male newborn delivered at 28 weeks, neonatal respiratory distress syndrome, ABG shows decreased pH, decreased Po2 increased PCO2. A deficiency in which of the following most likely caused the disorder? A. Diacylglycerol B. Dipalmitoylphosphatidylcholine C. Phosphatidylserine D. Sphingomyelin E. Surfactant protein D - ANSWER-B. Dipalmitoylphosphatidylcholine Most important lecithin in pulmonary surfactant! so deficiency in it would lead to neonatal respiratory distress syndrome with gro...

BIO Exam 4 Practice Test 174 Questions with Verified Answers The term polycistronic mRNA means: A.There is more than one mRNA strand produced during each round of transcription. B.There are multiple promotors to initiate transcription of this RNA. C.There are multiple operators for transcription of this RNA. D. There are multiple open reading frames in the mRNA produced. - CORRECT ANSWER D Please choose the true statement: A. During replication, the DNA leading strand is polymerized i...

Nutrition Science that studies food and how it nourished the body and influences health Inorganic vs. Organic Organic - Vitamins Inorganic - Minerals Fat Soluble Vitamins Vitamins A, D, E, K Water Soluble Vitamins Vitamins C, B Energy Yielding Units: Carbs, Lipids, Proteins, Alcohol Carbohydrates - 4 kcal/g Lipids - 9 kcal/g Proteins - 4 kcal/g Alcohol - 7 kcal/g DRI (Dietary Reference Intakes) as set of nutritional reference values for the US and Can...

Recall that the macronutrients carbohy- drates, fats, and proteins provide energy; thus, we need to consume them in relatively large amounts. In contrast, the micronutrients, vitamins and minerals, are needed in very small amounts. They are nev- ertheless essential to our survival, assisting critical body functions such as energy metabolism and the formation and maintenance of healthy cells and tissues. Much of our knowledge of vitamins and minerals comes from accidental observations of...

NTR 343 Final Exam Quiz Bank 2022 1. All of the following B vitamins are involved in oxidative decarboxylation of pyruvate except: c. Folate 2. Explain in scientific detail how certain foods can inhibit the absorption of thiamin. List four food examples. Some foods contain thiaminases which break the weak methylene bridge between the two rings in the thiamin structure. Example foods are raw fish, tea, shrimp, mussels, clams, fish paste, betel nuts, ferns 3. Which of the following is not a...

ASPEN Adult Nutrition Support Core Curriculum - Chapter Questions and correct answerswhich of the following nutrition interventions have been shown to improve clinical outcomes and quality of life in institutionalized older adults? A. diet modification and liberalization B. modification of dining environment C. provision of aides to improve functional status and increased independence at meals D. honoring food preference and providing snacks and fortified foods E. All of the above E. all...

Exam (elaborations) NR 511 Midterm Study Guide Worksheet ase Risk Subjective Finding Objective Findings Diagnostics Treatment Education GI DISORDERS Appendicitis -Most common between 10-30yrs; but can occur at any age; rare in infants and older adults -men more at risk - Diets low in fiber, high in fat, refined sugars, & other carbs at increased risk. - Obstruction of appendix is cause of majority of appendicitis - contributing factors: Intra-abdominal tumors, positi...

Which of the following is FALSE? Enterocytes mature out of gastric pits. Enterocytes can be sloughed off. Uptake doesn't guarantee absorption. Absorption is when a compound reaches circulation. - correct answer False Enterocytes mature FROM STEM CELLS IN THE CRYPTS OF LIEBERKUHN Which of the following are CORRECT? -In osmosis water moves from higher solute concentration to lower solute concentration. -In osmosis water moves from lower solute concentration to higher solute concentrati...

What is the maturation and life cycle of enterocytes (crypts, villi, sloughing etc.) - correct answer The crypts which located in the pits of villi contain stem cells that can differentiate to enterocytes, and the enterocytes mature as they migrate up. The life cycle of enterocytes is 72 hours. Once enterocytes have reached the top of villi, they are sloughed off, and are either digested or excreted in feces. Uptake - correct answer compounds being transported into enterocytes Absorption -...