Activators make active sites better fit a substrate causing the reaction rate to increase. In Part 3, the materials used were 10 mL of 1. The enzyme in this lab is catalase, which produced by living organisms to prevent the accumulation of toxic hydrogen peroxide. Some of the factors that affect enzyme reactions are salt concentration, pH, temperature, substrate and product concentration, and activators and inhibitors.
The optimum pH for an enzyme-catalyzed reaction is neutral 7 on the pH scale. Both of these conditions denature the enzyme and cause its active site to change shape. Hypothesis The enzyme catalase, under optimum conditions, effectively speeds the decomposition of hydrogen peroxide.
The active site is the only part of the enzyme that reacts with the substrate.
After mixing well, a 5 mL sample was removed and placed over a white sheet of paper. Each sample was assayed separately by placing each over a white sheet of paper. Each active site on the enzyme is unique to the substrate it will bind with causing each to have an individual three-dimensional structure.
Each of the cups were swirled. To start the actual lab, 1 mL of catalase was added to each of the cups, while simultaneously, the timer was started. A 5-mL syringe was used to add KMnO4, 1 drop at a time until a persistent brown or pink color was obtained.
The Baseline Assay 10 mL of 1. The percent of the spontaneously decomposed H2O2 was calculated.
Salt concentration must be in an intermediate concentration. In Part 2, the materials used were 5 mL of catalase, a boiling water bath, 1 test tube, a test tube rack, 10 mL of 1.
For substrate and product concentrations, enzymes follow the law of mass action, which says that the direction of a reaction is directly dependent on the concentration. The solution was swirled after every drop, and the results were observed and recorded.
Enzymes require a very specific environment to be affective. The reaction was observed and recorded.
At 10 seconds, 10 mL of H2SO4 were added to stop the reaction. Likewise, if the salt concentration is too high, the enzyme reaction is blocked by the salt ions.
In Part 3, 10mL of 1. Afterwards, a five 5 mL sample of each of the larger cups were moved to the corresponding labeled smaller cups. If the salt concentration is too low, the enzyme side chains will attract each other and form an inactive precipitate.Activity 3: Film: “Deadly Ascent” Introduction The organs of the respiratory system include the nose, nasal cavity, sinuses, pharynx, larynx, trachea, respiratory tree, and lungs.
Prepare the computer for data collection by opening the Experiment 26 folder from the Biology with Computers folder of Logger Pro. Then open the. The cut (or threshold) scores for Levels 1, 2, 3, and 4, within the scale score range, were initially developed by the Smarter Balanced Assessment Consortium, with input from thousands of educators and community members.
BIOLOGY SBA (LAB) 1. MY BIOLOGY S.B.A 2. Lab #1 Topic: Classification Aim: To classify organisms into groups Apparatus: Method: A list of 10 organisms in. AssessmentFrameworkAssessment Framework HKDSE Biology & Combined Science (Biology part) &HKDSESBAR i t & HKDSE SBA Requirements BIOLOGY COMBINEDSCIENCECOMBINED SCIENCE (Biology Part) 20%ofbj kf subject mark 10%ofbj kf subject mark Minimum no.
of assessment: Minimum no. of. Aug 11, · 👇相關影片： Bio SBA 播放清單 billsimas.com?v=_xzazVWpyi4&list=PLxiFGBxgb0n7wBDUPUf5ANLMVBcNRxFvv Vitamin C billsimas.com With this momentum there's no stopping us. The next SBA meeting is scheduled for in sunny Brisbane, Australia.
Stay tuned for udpates. If you can't wait, get your fix of Syn Bio and Genome editing on 26 November for the Sc extravaganza in Sydney.
Stay tuned for details.Download