Which of the following is true about vitamin D3 (cholecalciferol)? A. It is a sterol. B. It is a hormone precursor. C. Humans enzymatically synthesize their own Vitamin D3. D. It is converted into a biologically active form by UV light from sunlight.

Which of the following is true about vitamin D3 (cholecalciferol)? A. It is a sterol. B. It is a hormone precursor. C. Humans enzymatically synthesize their own Vitamin D3. D. It is converted into a biologically active form by UV light from sunlight.

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter1: Introduction To Physiology And Homeostasis

Section: Chapter Questions

Problem 3TAHL: The hormone insulin enhances the transport of glucose (sugar) from the blood into most body cells....

See similar textbooks

Related questions

Q: During Cytochrome P450-catalyzed monooxygenation... O... iron is being both reduced and oxidized,…

A: Cytochrome P450 is a heme protein (iron containing) with monooxygenase activity. The of general…

Q: In NOT MORE than 350 words, distinguish between the metabolic concepts presented by the terms: i.…

A: The human body and its systems are regulated with the help of Glucose homeostasis. Glucose…

Q: How to calculate the Km based on this data?

A: hghfjThe tricarboxylic acid (TCA) cycle, also known as the Krebs or citric acid cycle, is the main…

Q: Why is serum beta glucan testing used for diagnosing an invasive candidiasis?

A: Yeast a type of fungus. Candida is a genus of yeast. When any member of the genus Candida causes a…

Q: What would the tertiary structure of Pro-ala and Glycl-L-alanine be?

A: Proteins are polymers of amino acids linked by peptide/amide bonds between the carboxyl group of one…

Q: draw the structure of a lecithin containing oleic acid and palmitic acid as the fatty acid side…

A: Lecithin can be thought of as a combination of glycerol-based phospholipids.

Q: What is it? Leading chain Ligase procedure Replication fork T structure that may participate in…

A: DNA replication is the process by which the genomic DNA is copied in cells. In this process by which…

Q: do some research on a particular micronutrient (vitamin OR mineral) and discuss its role in the body…

A: Introduction: Vitamin C is a water-soluble vitamin that is also referred to as ascorbic acid. It is…

Q: "Chargaff's rules" about the composition of bases in DNA dictates that A. the sum of purine…

A: Chargaff's rules explain the structure and composition of DNA. Chargaff's rules include the…

Q: What are the advantages and disadvantages of using the Lieberman-Burchard Test for Lipids .Suggest…

A: Lipids are important in biochemical processes because they serve as an efficient source of energy…

Q: Given the active site and reaction mechanism below, what is the mechanism of irreversible inhibition…

A: Irreversible inhibition is a process in which inhibitors bind covalently or non-covalently to a…

Q: ANCESTOR CELL AT TAGC GAC CAGTATAT CCTACAATC CGTC TACTT CATTO AMOEBA ATTAG CGAC CAGTTTAT CCTACAAT CC…

A: Venn diagram: It is also called a set diagram or logic diagram. It is a diagram that depicts every…

Q: .Role of liver in carbohydrate and lipid metabolism

A: Liver is the most flexible metabolic organ in higher vertebrates. The diet we eat can vary in its…

Q: Calculate the volume of TAE buffer that you will need to prepare a 100ml solution of 1X strength…

A: TAE buffer stands for Tris-acetate-EDTA buffer. It is used in lab to do electrophoresis of nucleic…

Q: Which of the following is true regarding microbial tests that lead to color change in tubes used to…

A: Option 1 and 4 are correct. There are multiple tests involving color change for bacteria…

Q: ACTIVITY 7.3.1 Given a part of DNA undergoing replication. Copy and write the corresponding bases in…

A: Replication is the process of making new DNA strands from the parent DNA by using them as templates.…

Q: The key to biopolymer self-replication is: O Natural selection O Intramolecular complimentarity O…

A: Biomolecules are organic compounds produced by living organisms. They play important function as…

Q: Choose the correct properties for the given fatty acid: 0 can participate in esterification…

A: Fatty acids are important micromolecules which combine together to form lipids in plants, animals…

Q: What are the merits and demerits of aspirin over salicylic acid?

A: Aspirin has certain advantages over salicylic acid.

Q: Malonyl-CoA synthesized by the action of acetyl-CoA carboxylase II is primarily used: a. To…

A: Acetyl CoA is produced in mitochondria and cannot leave mitochondria so it combines with…

Q: Explain why vegetable oil and water don't dissolve in one another.

A: Lipids are non-polar biomolecules composed of fatty acids and an alcohol. Some of the lipids have…

Q: Which vitamin is needed for FADH formation? Group of answer choices Niacin Riboflavin Vitamin C…

A: A number of significant metabolic reactions require the redox cofactor FAD. It exists in the redox…

Q: What is bio chemistry

A: The word biochemistry is the combination of two words biology and chemistry. In simple terms…

Q: Catalase, when in contact, only create bubble with hydrogen peroxide and not with water. This would…

A: The Electron Transport Chain (ETC) carries electrons to the final electron acceptor , O2. Generally…

Q: escribe using two named examples how recombinant genes have been used to produce commercially…

A: Introduction: Recombinant DNA technology is a molecular biology methodology involving DNA production…

Q: The hydrolysis of nucleoside triphosphates A. is required for them to act as regulatory molecules.…

A: Hydrolysis of Nucleoside Triphosphate involves cleaving of beta- gamma Phospho diester bond in the…

Q: 9. Cholesterol is not readily broken down by cells and does not serve as a source of fuel. It can…

A: Cholesterol is a lipid with amphipathic properties. Along with phospholipids, they can be located on…

Q: DNA A= 5' GGG GCT AGC CCC 3' DNA B=3' ATA TAT ATA CCC 5' DNA C= 5' TAC GTT ACG TCG 3' DNA D= 3' ATC…

A: A hairpin loop has a stem that contains complementary bases and a circular structure that does not…

Q: Given the active site diagram and reaction mechanism, indicate the mechanism of irreversible…

A: Irreversible inhibition is a process in which inhibitors bind covalently or non-covalently to a…

Q: What are the advantages and disadvantages of using the Ehlrich test for proteins Suggest how the…

A: Introduction: Ehlrich test is a biochemical test that is performed to detect a particular amino…

Q: Calculate the energy(Kcal.) produced from full oxidation of (3) mole of glucose (glucose --> CO2+…

A: The removal of electrons is called oxidation, and the gain of electrons is called reduction. In the…

Q: I. Identify the D,L convention of the following monosaccharides CHOV HOSIT H -OH H- -OH HOH -OH 196…

A: a: L-Altrose b: D-Allose c: D-Mannose For identifying the convention of D and L, the structure…

Q: Statement Analysis: Statement 1: Malate is oxidized to form oxaloacetate which is catalyzed by…

A: We will check both the statements and determine if they are true or flase.

Q: Give a precise definition of the porphyrin ring, explain how it relates to ions and molecules, and…

A: Porphyrins are a class of heterocyclic macrocycle organic compounds made up of four modified pyrrole…

Q: On the diagram above, draw a line across each peptide bond in oligopeptide 3a. Write the…

A: Since you have asked multiple questions, we will solve the first three question for you. If you want…

Q: Conjugated proteins which are a combination of amino acids and carbohydrates O A. nucleoproteins OB.…

A: Based on the composition, proteins are of two types, simple and conjugated proteins. The simple…

Q: Nitrogenous wastes are produced as result of the metabolic breakdown of O carbohydrates lipids…

A: Nitrogenous waste is produced in the form of urea in mammals, ammonia in fishes, and uric acid in…

Q: The steps of glycolysis between glyceraldehyde 3-phosphate and 3-phosphoglycerate involve all of the…

A: Glycolysis is a catabolic pathway where glucose is broken down into pyruvate molecules that enter…

Q: Given the active site diagram below, which of the indicated components is/are necessary for proton…

Q: A chemical reaction is more likely to occur spontaneously if A. the products of the reaction are…

A: For a reaction to occur spontaneously, the free energy change i.e delta G should be negative meaning…

Q: The following has the lowest energy per gram when oxidized Carbohydrate protein O ethanol O Lipids O

A: Nutrients are the compounds that provide us energy when they are oxidised. These nutrients like…

Q: i submitted this question twice and i got different answers

A: Enzymes are biocatalysts which increase the rate of biochemical reactions. And the activity of…

Q: Question 6 of 13 ONA A 5000 GCT AGC CCC ONA B-3 ATA TAT ATA CCCS ONA C-S TAC GTT ACG TOG ONA D3 ATC…

A: Since there are multiple questions and which question is to be solved has not been specified, as per…

Q: Using the information provided, calculate the delta G knot prime and the Keq value at 298K for the…

A: Glutamate dehydrogenase is an enzyme that catalyzes the oxidative breakdown of glutamate to furnish…

Q: Statement Analysis: Statement 1: Lipids in the form of TAGS are oxidized into CO2 and H20 to form…

A: Carbohydrates and lipids are the energy giving nutrients that differ in the amount of energy they…

Q: What chemical group is found at the 5' end of a *?polynucleotide chain

A: Polynucleotide: The Linear polymer composed of- the many nucleotide units.

Q: Define Lacto-ovo vegetarian. Polysaccharides. Tee Eer Osteopenia Osteomalacia.…

A: Introduction: A healthy diet should contain three important components which are: carbohydrates…

Q: Which of the following are important chemical considerations defining the structure and function of…

A: Polynucleotide means a nucleotide is composed of multiple bases attached together via phosphodiester…

Q: From the active site diagram below, please indicate the cofactor from the indicated components. HO 4…

A: Cofactors are the non protein molecules that help the enzyme to carry out catalysis. Enzymes without…

Q: Which of the following best describes this type of mutation? Original – CCU-GAU-GAG-UCA…

A: Ans. B -non sense mutation Non sense mutation is substitution of single base pair which lead to…

Concept explainers

Eating behaviors

The term "eating behaviors" is an umbrella term that encompasses aspects such as food selection and motivations, feeding habits, dieting, and eating behavior-related concerns such as obesity and eating disorders. Eating behavior is influenced by various psychological, sociological, cultural, environmental, and economic elements.

Question

Which of the following is true about vitamin D₃ (cholecalciferol)?

A. It is a sterol.

B. It is a hormone precursor.

C. Humans enzymatically synthesize their own Vitamin D₃.

D. It is converted into a biologically active form by UV light from sunlight.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Lipids

VIEW

Answer

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biochemistry and related others by exploring similar questions and additional content below.

Similar questions

Which of the following statements concerning glycogen in different tissues is TRUE? a. Liver glycogen serves as a fuel reserve for ATP synthesis during muscle contraction. b. Brain glycogen serves as a source of blood glucose. c. Red blood cells use glycogen as a source of blood glucose. d. Muscle glycogen serves as a fuel reserve for ATP synthesis during muscle contraction. e. Muscle glycogen serves as a source of blood glucose.
The hormone insulin enhances the transport of glucose (sugar) from the blood into most body cells. Its secretion is controlled by a negative-feedback system between the concentration of glucose in the blood and the insulin-secreting cells. Therefore, which of the following statements is correct? A decrease in blood glucose concentration stimulates insulin secretion, which in turn further towers blood glucose concentration. An increase in blood glucose concentration stimulates insulin secretion, which in turn lowers blood glucose concentration. A decrease in blood glucose concentration stimulates insulin secretion, which in turn increases blood glucose concentration. An increase in blood glucose concentration stimulates insulin secretion, which in turn further increases blood glucose concentration. None of the preceding is correct.
Which of the following would be the most likely consequence of the addition of small amounts of selenium to the diets many species of vertebrate animals especially livestock. a. It would increase the requirement for Vitamin E b. It would increase the rate of beta oxidation of fatty acids c. It would result in selenium toxicity d. It would decrease the requirement for vitamin B12 e. It would reduce the requirement for Vitamin E
What do glucocorticoids and glucagon hav in common? They signal for? a. glycogen synthesis b. catabolism of expendable proteins c. production of cholesterol and steriods
In the glyoxylate cycle, isocitrate is converted directly to what substance? a.fumarate b.succinate c.malate d.oxaloacetate
When there is no enough CTP that binds with aspartate transcarboxylase, the mechanism that takes place is; c. Positive feedback mechanism d. Negative feedback mechanism a. Homeostasis b. Glycolysis
Which of the following is true?a. Triglycerides have the least energy content per gram of the three majorenergy sources in the body.b. Fat catabolism generates new triglycerides for storage in adipose tissue.c. By mass, the total-body content of carbohydrates exceeds that of total triglycerides.d. Catabolism of fatty acids occurs in two-carbon steps.e. Triglycerides are the major lipids found in plasma membranes
Which of the following is NOT involved in the activation of glucose for glycogen synthesis? A. Phosphorylation of glucose by hexokinase to glucose-6-phosphate. B. Isomerization of glucose-6-phosphate to fructose-6-phosphate by phosphohexose isomerase. C. Two-step phosphoryl group transfer by phosphoglucomutase. D. Attachment of glucose-1-phosphate to UDP.
Trace the pathway of the production of insulin, starting from the stimulation by glucose. And highlight the following. a.cellular pathways b.receptors c.mechanism of enzyme production. Please help me. Thank you
A deficiency in which of the following enzymes leads to hyperphenylalaninemia and decreased synthesis of catecholamine and serotonin? a. Dihydropteridine hydrolase b. Dihydropteridine reductase c. Dihydropteridine oxidase
Glucagon increases blood glucose very quickly by activating phosphorylase. This is very efficient because phosphorylase: A.is a G-protein. B.reduces cyclic-AMP. C.has phosphodiesterase activity. D.cleave the 1-6 branches. E. acts at multiple 1-4 endings.
Which of the following concerning glucagon is TRUE? a. It is a hormonal protein that uptakes glucose and amino acids from blood. b. Its activity is up-regulated when blood glucose increases. c. It is a hormonal protein that up-regulates glycogenolysis. d. It decreases gluconeogenesis.