- Study guides, Class notes & Summaries
Looking for the best study guides, study notes and summaries about ? On this page you'll find 59 study documents about .
Exam (elaborations)
DHN 311 Final Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!!
DHN 311 Final Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!! 1. Plasma lipoproteins are composed of __ and ___ - ANSWER proteins lipids and 2. What are the four categories of spherical macromolecular complexes? - ANSWER 1. chylomicron 2. very low density lipoproteins 3. low density lipoproteins 4. high density lipoproteins 3. Hhow do the 4 spherical macromolecular complexes differ? - ANSWER in lipid and protein compo...
EWLindy
Exam (elaborations)
DHN 311 Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!!
DHN 311 Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!! 1. Glucagon is released from __1__ cells in the __2__ in response to __3__ blood glucose. Also increases __4__ that favor __5__ - ANSWER 1. alpha 2. pancreas 3. low 4. subtrate levels 5. gluconeogenesis 2. 3 mechanisms used by GLUCAGON to regulate gluconeohenesis - ANSWER 1. changes in allosteric effectors (increase substrates that favor gluconeogenesis) 2. covalent modi...
EWLindy
Exam (elaborations)
DHN 311 Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!!
DHN 311 Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!! 1. The steroid hormones included.... - ANSWER 2. mineralocorticoids 3. sex hormones 1. glucocorticoids 2. _____ is the precursor for all of these steroid hormones. - ANSWER cholesterol 3. An example of a glucocorticoid is ____. - ANSWER 4. An example of a mineralocorticoid is _____. - ANSWER cortisol 5. Examples of sex hormones are ____ and ____. - ANSWE...
EWLindy
Exam (elaborations)
DHN311 Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!!
DHN311 Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!! 1. In a catabolic reaction, the substrate tends to be ______ (oxidized or reduced),which means the coenzyme tends to be reduced. The reducing equivalents, NADH/FADH2, are used to generate energy and tend to be generated during catabolic reactions. Catabolic reactions also generate ______, which is a usable form of chemical energy. - ANSWER -ATP -oxidize 2. During an anabolic reaction, N...
EWLindy
Exam (elaborations)
DHN 311 Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!!
DHN 311 Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!! 1. Where does the pentose phosphate pathway occur? - ANSWER 2. Where is the pentose phosphate pathway most active? - ANSWER liver, mammary glands, adrenal cortex, and rapidly dividing tissue cytosol 3. What are important intermediates of the pentose phosphate pathway? - ANSWER ribose-5 phosphate, used for nucleic acids and metabolite that can enter glycolysis if neede...
EWLindy
Exam (elaborations)
DHN311 Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!!
DHN311 Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!! 1. Name 3 factors that influence the reaction velocity of enzyme driven reactions. - ANSWER temperature pH substrate concentration 2. (Before or After) ______ Vmax is reached there is free enzyme available for the substrate to bind. - ANSWER Before 3. When substrate concentration is ______ (low or high) there is plenty of free enzyme available. Which means that when enzyme...
EWLindy
Exam (elaborations)
DHN 311 Exam 120 + Questions Reviewed And Revised With Correct Answers Already Passed!! DHN 311 Exam 120 + Questions Reviewed And Revised With Correct Answers Already Passed!!
DHN 311 Exam 120 + Questions Reviewed And Revised With Correct Answers Already Passed!! 1. Acetylation addition of acetyl group relaxes DNA, increase access 2. De-acetylation removes acetyl contracts 3. Methylation add methyl contracts 4. Gene amplification increases number of copies of specific gene 5. Direct transcriptional regulation ligand binds to intracellular receptors creates transcription factor binds to DNA to restrict or amplify 6. Indirect trans...
EWLindy
Exam (elaborations)
DHN 311 Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!!
DHN 311 Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!! 1. The major anabolic hormone that impacts glucose, lipid, and amino acid synthesis and storage - ANSWER insulin 2. Insulin? - ANSWER - storage hormone - released in response to carbs/nutrients after eating - promote/increase glucose intake into certain cells (stores excess glucose as glycogen) - tells body to make protein and fat - turns off pathways that break down stored energ...
EWLindy
Exam (elaborations)
DHN 311 Final Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!!
DHN 311 Final Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!! 1. What is a SNP? - ANSWER - Single nucleotide polymorphism - Most common type of genetic variation/polymorphism - Each SNP represents a difference in a single DNA nucleotide 2. What is RNA splicing? - ANSWER - Splicing is when introns are taken out and exons are joined together to form mature RNA 3. Describe the role of each type of RNA - ANSWER - Transfer RNA (tRNA) - tr...
EWLindy
Exam (elaborations)
DHN 311 Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!!
DHN 311 Exam Tested Questions Reviewed And Revised With Correct Answers Already Passed!! 1. What are the two classes of enzyme inhibitors? - ANSWER 2. irreversible 2. What are the four types of enzyme inhibition? - ANSWER 2. non-competitive 3. uncompetitive 4. suicide 3. Competitive inhibition occurs when the inhibitor.... - ANSWER reversibly to the same site that the substrate would normally bind 4. A competitive inhibitor ____ the Km - ANSWER ...
EWLindy
Exam (elaborations)
DHN 311 EXAM 1 2024/2025 LATEST UPDATE| 138 QUESTIONS WITH COMPLETE SOLUTIONS
List the major steps of the "central dogma" of molecular biology. What are the products of each step? - CORRECT ANSWER Replication --> DNA Transcription --> RNA Translation --> protein Once the DNA strands unwind and separate, DNA polymerases copy the DNA. What are they copying? What characteristics of DNA necessitates the need for leading and lagging strands to copy the DNA? - CORRECT ANSWER They are copying ____. DNA is antiparallel so the mode of synthesis ...
ACELEARNERS
Exam (elaborations)
DHN 311 exam 1 Questions with Complete Solutions
DHN 311 exam 1 Questions with Complete Solutions
Classroom
Exam (elaborations)
DHN 311 Nutritional Biochemistry Exam 2 Material Questions with Complete Solutions
Anabolic Processes Correct Answer-Synthesize large molecules from smaller ones. Usually require REDUCING AGENTS and energy. Catabolic Processes Correct Answer-Break molecules down from larger to smaller components. Its usually OXIDATIVE in nature and energy releasing. Majority of energy released is captured as ATP. Biologic effects of insulin INCREASE: Correct Answer--Glucose Uptake -Glycogen Synthesis -Protein Synthesis -Fat Synthesis Biologic effects of insulin DECREASE: Correct...
cracker
Exam (elaborations)
DHN 311 Final Exam Questions with Complete Solutions
Fed or fasted: Gluconeogenesis Correct Answer-- Fasted state - Activated by glucagon in the liver Fed or fasted: Glycolysis in non-liver tissues Correct Answer-- Fed state -Activated by insulin in all cells Fed or fasted: Glycolysis in the liver Correct Answer-- Fed state - Activated by insulin Fed or fasted: Beta-oxidation Correct Answer-- Fasted state - Activated by glucagon - Occurs in the liver and muscle Fed or fasted: Fatty acid synthesis Correct Answer-- Fed state - Acti...
cracker
Exam (elaborations)
DHN 311 exam 2 Questions with Complete Solutions
Oxioreductases Correct Answer-· catalyze simultaneously an oxidation and a reduction. Substrate undergoes either oxidation or reduction while enzyme does opposite, but substrate eventually returns to normal. o Dehydrogenases, reductases, oxidases, peroxidases... transferases Correct Answer-· catalyze the transfer of a group from molecule to another. NOT REDOX. o Transketolase, transaldolase, transmethylase, and transaminases. hydrolases Correct Answer-· catalyze the cleavage of a bond...
cracker
Exam (elaborations)
DHN 311 Final Exam Questions with complete solutions
Fasting, Gluconeogenesis makes glucose from non-carbohydrate precursors when glucose levels are low in the liver. (Supplies energy to other tissues when energy levels are low) Correct Answer-Under what conditions does gluconeogenesis occur? (fasting or fed) Fasting, When blood glucose is low in non-liver tissues glycolysis is turned on to generate ATP (energy). Correct Answer-Under what conditions does glycolysis (non-liver tissues) occur? (fasting or fed) Fed, The liver controls the w...
cracker
Exam (elaborations)
DHN 311 Exam 1 Question with Complete Solutions
Covalent Bond Correct Answer-Form between non-metals and share electrons Nonpolar covalent bond Correct Answer-Has no net charge and share electron equally between atom Polar covalent bond Correct Answer-One atom is slightly more positive than the other and unequally share electrons Electronegativity Correct Answer-The net ability of an atom to attract an electron from another atom. An atom with high electronegatvity is an electron Correct Answer-Acceptor An atom with low electron...
cracker
Exam (elaborations)
DHN 311 Questions with Complete Solutions
When more enzyme is added to a reaction involving a regular enzyme, the Vmax ________ in the presence of available substrate. (Inhibitors are not a factor in this situation) Correct Answer-Decrease An increase in Km indicates that ____ substrate is required for an enzyme to bind substrate. Correct Answer-More The folding of the tertiary structure is due to Correct Answer-Hydrogen, hydrophobic, and disulfide bonding among distant amino acids The ______ structure of the secondary level of...
cracker
Exam (elaborations)
DHN 311 exam 1 Questions with Complete Solutions
List the major steps of the "central dogma" of molecular biology. What are the products of each step? Correct Answer-Replication --> DNA Transcription --> RNA Translation --> protein Once the DNA strands unwind and separate, DNA polymerases copy the DNA. What are they copying? What characteristics of DNA necessitates the need for leading and lagging strands to copy the DNA? Correct Answer-They are copying ____. DNA is antiparallel so the mode of synthesis occurs in 2 different ...
cracker