Cofactor - Study guides, Class notes & Summaries

Activation energy The activation energy required for a reaction is reduced by enzymes. Active site The area of the enzyme where the substrate fits. Can be denatured by pH and heat. Complementary to the substrate. Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen Brainpower Read More Active transport Movement of molecules against the concentration gradient (low to high) and requires energy. Adenine One of the 4 bases...

When water-soluble vitamins are consumed in excess of body needs, generally the excess is: a. excreted in the feces. b. stored in liver, bone, and adipose tissue. c. excreted in the urine. d. not absorbed. correct answers C A major function of B vitamins is to serve as: a. antibodies. b. a source of energy. c. a part of a coenzyme. d. electrolytes. correct answers C Most animals synthesize their own ascorbic acid from _____. a. glucose b. glutamine c. glycogen d. alanine correc...

NBME PHYSIOLOGY UPDATED EXAM WITH COMPLETE SOLUTIONS 2023/2024 Prostglandin - CORRECT ANSWER-From mast cells, macrophages, EC, and platelets Vasodilation, pain Rate controlling step in Insulin secretion - CORRECT ANSWER-Phosphorylation of glucose by glucokinase Glucokinase mutation - CORRECT ANSWER-Autosomal dominant form of early onset type 2 diabetes GLUT 2 - CORRECT ANSWER-low affinity high capacity glucose transporter. Uptake by beta cells Insulin release - CORRECT ANSWER-Bloo...

Excreted in the urine - ANSWER When water-soluble vitamins are consumed in excess of body needs, generally the excess is: A part of a coenyme - ANSWER A major function of B vitamins is to serve as: Glucose - ANSWER Most animals synthesize their own ascorbic acid from: Lost 2 electrons - ANSWER When ascrobic acid becomes dehydroascorbic acid it has: Collagen synthesis - ANSWER Vitamin C acts as a cofactor by maintaining iron in a reduced state in:

Vitamins + Minerals - play integral role in cell metabolism Recommendations for essential nutrient intake levels - are established to support optimal function and health The fat-soluble vitamins (soluble in oil) - A; D; E; K The water soluble nutrients - water-soluble B vitamins, thiamin, riboflavin, niacin, vitamin B6, vitamin B12, biotin, pantothenic acid, folate, choline, + water soluble vitamin C Vitamin A - functions in vision (including light and dark adaptation ...

water soluble vitamins correct answers Vitamins B and C -cooking and washing them with water can leach them out of food -body easily absorbs and excretes them -can't reach toxic levels by food -not stored for long (at most a month) vitamin C correct answers ascorbic acid/calcium ascorbate (buffered) -co-enzyme in the formation and maintenance of collagen and connective. tissue -cofactor in the production of carnitine; important in the transport of fatty acids -anti-oxida...

OCR Biology Exam Guide Questions and CORRECT Answers Cofactors - Ans A substance that has to be present to ensure that an enzyme catalysed reaction takes place at the appropriate rate. Cofactor - Ans Zinc being permanently bound to carbonic anahydrase is an example of what? A co-factor that together with a substrate forms then right shape to bind to the active site. - Ans What is a co-substrate?

ACS BIOCHEMISTRY 1 MID TERM EXAM QUESTIONS AND ANSWERS LATEST 2024 Biochemistry I What is the difference between an apo and holoprotein Apo = protein part of an enzyme without its characteristic prosthetic group (cofactor is not bound) Holo = apoprotein with its prosthetic group (cofactor bound) Many amino acids exist as what isomer? L Most alpha amino acids are _____, expect for glycine. All amino acids have ______ unique to itself. Chiral, R-group/4th substituent When naming an a...

davids super cool Davids This One UNE BioChem 1005 Final Exam Questions And Answers Carnitine palmitoyl transferase - ANS - transfers acyl groups from CoA to carnitine & vice versa - inhibited by malonyl-CoA ketone bodies - ANS - acetoacetate, β-hydroxybutyrate, acetone - oxidized as fuel source in extreme fasting d-3-hydroxybutyrate dehydrogenase - ANS interconversion of acetoacetate and 3-hydroxybutyrate acetone - ANS yielded by spontaneous decarboxylation of acet...

What is cellular metabolism? - a controlled set of biochemical reactions that occur in living organisms in order to maintain life What is an enzyme? - a protein, or group of proteins, that catalyze (speed up) chemical reactions What is unique about enzymes? - the enzyme is not consumed during the reaction and can be used repeatedly by the cell What is a cofactor? - a small chemical component, usually metal ions, that assist enzymes during the catalysis reactions Do cofactors serve as regu...