HBY-BIO-U2-TEST BIOCHEMISTRY-SY 20-21 Which statement BEST explains why enzymes bind to specific substrates? O Anenryme can be inibted se ds active site is altered An enzyme faids ditterently in the presence of diferent substrates O Diferert amino acd seguences cause variations in the shapes of an enzymes active sites O Enzymesubstrate binding is based on sze so ony large enrymes can bind to large ubstrates
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- AM Fri May 21 Take Quiz Coenzymes function to O denature the enzyme, stopping the chemical reaction from occurring. interact directly with enzymes, either enabling the reaction to occur or making the substrate-enzyme interaction more efficient. O change the shape of enzymes, allowing different additional substrates to bind. O dilate blood vessels, allowing more blood to flow, allowing more substrate to reach enzymes. O absorb excess hydrogen and hydroxide ions, keeping the pH relatively stable, so that reactions can occur most efficiently. Question 11 1 In the digestive system, which major organ starts the breakdown of proteins? O Mouth O Large intestines O Small intestines O Stomach O Esophagus Question 12 energy is energy found in the bonds of ingested nutrients.Which of the following is not true about enzymes They increase ?G of reactions They are usually made of amino acids They lower the activation energy of chemical reactions Each one is specific to the particular substrate(s) to which it hinds.Explain the advantage of using Fluorescence Recovery After Photobleaching (FRAP) in determining protein localisation I notes = Notes Comments MAY 7.
- 23 Which statement describes a disease state caused by altered protein structure? A silent mutation in hyaluronidase disnupts mucosal function OA slent mutation in arachidonic acid disrupts eicosanoid production O A missense mutation in heokinase disrupts glycolysis OA ronsense mation in ATP disrupts energy metabolsmBSC1010C Enzymes & Cellular Regulation Dr. Harris 4. Compare the rate of the pepsin-catalyzed reaction at pH = 1.5 with the rate of the lipase- catalyzed reaction at pH = 1.5. 5. Compare the rate of the pepsin-catalyzed reaction at pH = 8.0 with the rate of the lipase- catalyzed reaction at pH = 8.0. 6. Based on your understanding of protein structure, explain in detail the effect of exposing an enzyme to a pH outside its optimal range. Include a discussion of the effect on both the structure and function of the enzyme. 7. At what pH values is lipase likely to be denatured? Explain your answer.A Classwork for BTMF_Itani_ Biolo x A S'ERRA STANLEY -protein-synth X O 8 period light reaction - Google S x google.com/document/d/1plhyciPrM-AMsQKmaUHZSZU44EJL85jDuCyDxE01E60/edit - protein-synthesis-worksheet_practice-converted O sert Format Tools Add-ons Help TUR Last edit was 10 minutes ago 0% Normal text Noto Sans BIUA 川。 三E▼=、三三 13 + 田回▼ 1 3 4. 5 8. DNA → TAC AGA CGG CAA CTC TGG GTG CTT TGT TCT CTT CTC AGT ATC mRNA → protein > Son out Co 4. 6. 8. 9.
- light reaction - Google: Jod. google.com/document/d/1plhyciPrM-AMsQKmaUHZSZU44EJL85jDuCyDxE01E60/edit NLEY-protein-synthesis-worksheet_practice-converted @ w Insert Format Tools Add-ons Help Last edit was 7 minutes ago 100% - Normal text Noto Sans . BIUA 12 川, 三三▼ 3 5 Y 6. 7 I 3. DNA → TAC CTT GGG GAA TAT ACA CGC TGG CTT CGA TGA ATC CGT ACG GTA CTC GCC ATC MRNA → protein → 4. DNA → TAA ACT CGG TAC CTA GCT TAG ATC TAA TTA CCC ATC mRNA → protein → 5. DNA - CTA TTA CGA TAC TAG AGC GAA TAG AAA CTT ATC ATC MRNA → protein → Sign out 围 Ce & 6. 8. 3. de 5MULTIPLE CHOICE - Please answer properly QUESTION : Enzymes can be regulated in a many different ways. Covalent modification is one way. Here, the functional groups are attached to or removed from the enzyme. A phosphate group is an example of a functional group that can be added to an enzyme. Depending on the enzyme, addition of a phosphate group can either increase or decrease an enzyme's activity. Evaluate the following names and identify the general name of an enzyme that functions to add phosphate groups to its substrate? A. isomerase B. phosphatase C. kinase D. ligaselete this portion until 9.22, if so- just submit the first page of this worksheet ) Refer to the figure shown. Suppose that three critical amino acids in the active site of a specific enzyme are lysine, histidine, and arginine. HYDROPHOBIC AMINO ACIDS HYDROPHILIC AMINO ACIDS *H,N- CH -CO "H,N-CH- COO H,N-CH-COO Polar Which of the following characteristics would you predict the substrate to possess in order CH, CH "H,N-CH-COO H,N- CH - C0 CH, HC CH, CH, CH, CH Alanine (Ala. A) CH Valine (Val, V) CH THN C-NH, Leucine (Leu, L) Asparagine (Asn, N) Glutamine (Gin, Q) to bind the active site of this "H,N- CH -COO "H,N-CH-COO "H,N-CH-COO CH "H,N-CH-COO "H,N-CH-CO enzyme? CH CH- CH CH2 H C- CH, CH OH OH S-CH A. hydrophilic, with a positive charge Serine Threonine Isoleucine (le, I) Methianine (Met, M) Phenylalanine (Phe, F) (Ser, S) (Thr, T) Basic "H,N-CH-coO* "H,N-CH-COO "H,N- CH-COO "H,N- CH-- C00 "H,N-CH–COO CH CH CH, CH, CH, B. hydrophilic, but uncharged CH CH, NH NH CH, "H;N CH, H -N-)-…
- An allosteric inhibitor does which of the following? Binds to an enzyme away from the active site and changes the conformation of the active site, increasing its affinity for substrate binding Binds to the active site and blocks it from binding substrate Binds to an enzyme away from the active site and changes the conformation of the active site, decreasing its affinity for the substrate Binds directly to the active site and mimics the substrate.42/quizzes/36067 TEST 1 Supply the missing enzymes/product that is labelled with color yellow box and number. ALL ANSWER MUST BE ON LOWERCASE FORM E.i (fructose-1,6-biphosphate or glyceraldehyde-3-phosphate) HOH ADP HOH HOH CO ATP ADP HOH ATP HOH O, HC-OHO Phonphohurts esse HO 1. Glyceraldehyde 3phospnate Glucose Gucose-6-phosphate Fructose-16-biphosphate NADP NADH H ATP ADP o. 0 H,0 ATP ADP CHO OH Ase Phosphoenopynuvate (PEP) 2Phosphoglycerate 1,3-BisphonptoglycerateDrag the labels onto the diagram to identify the anatomical terminology describing body orientation and direction (human a Posterior (caudal) Distal Superior (dorsal) Proximal Inferior (caudal) Anterior (ventral) Posterior (dorsal) Pearson arch