BIOL 2114L Lecture 8: Exploring Amylase Substrate Specificity BIOL 2114 Lab - PhysioEx Exercise 8 Activity 2

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cpflora

24 Dec 2022

School

WGTC

Department

Biology

Course

BIOL 2114L

Professor

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Document Summary

Exercise 8: chemical and physical processes of digestion. You scored 100% by answering 5 out of 5 questions correctly. You correctly answered: enzymes are speci c about the substrates they can act upon. You correctly answered: both glucose and maltose . You correctly answered: polymers of glucose and polysaccharides. Proteins and peptides are formed by joining amino acids with a special type of covalent bond called a peptide bond. The benedict"s assay tests for the presence of. You included tube 2 (amylase, glucose, ph 7. 0 bu er) to. You correctly answered: see what a positive benedict"s test should look like. https://media. pearsoncmg. com/bc/bc_0media_ap/physioex/10/ex8/act2/ You scored 100% by answering 4 out of 4 questions correctly. The results of tube 5 (peptidase, starch, ph 7. 0 bu er) demonstrated that. You correctly answered: peptidase does not digest starch. You correctly answered: the bacterial suspension contained the enzyme cellulase, which digested the cellulose. You correctly answered: tube 5 (peptidase, starch, ph 7. 0 bu er).

Related Questions

Enzyme Activity

1. Briefly explain the principle of spectrophotometry.

2. Which of the following statements is true about enzymes?(check all correct answers)

		__ enzymes act on (are specific for) one or just a fewsubstrates
		__ enzymes can be denatured (loose their tertiary/quaternarystructure and activity) by extreme conditions such as heat, high orlow pH,or presence of organic solvents
		__most enzymes are DNA
		__ enzymes are protein
		__enzymes perform best at specific conditions of temperature, pHand salt concentration 5. Which enzymes break the following macromolecules? Match the following with their correponding answers: ___ Nucleic acids A. proteases or proteinases such as pepsin ___ Cellulose B. none ___ Triglycerides C. lipases ___ Proteins D. amylases ___ Starch E. nucleases 6.Match the following enzymes totheir products. Answers ___ pepsin, trypsin and other digestive proteases A.Nucleotides ___ salivary and pancreatic amylases and other enzymes B. AminoAcids ___ lipases C. Monosaccharides ___ nucleases D. fatty acids and glycerol 7. Based on experiments, what is the effect of extremeconditions of pH and temperature (boiling tube) on enzymeactivity? 8. ATP stores energy in the form of___ ___ Chemical energy ___ Kinetic energy ___ Thermal energy ___ Activation energy 9. An allosteric site in anenzyme is____ __ the site where reactions occur __ the site that binds aregulator __ the site that binds thesubstrate __ the site that binds the product 10. Enzymes increase the rate of reactions by making thetransition state less stable. __ True __ False 11. Enzymes increase the rate of reactions by placing reactingparts of the molecule in favorable positions. __ True __ False 12. Which of the followingis a mechanism for regulation of enzymes? __ covalent modification __ feedback inhibition __ allosteric regulation __ all of the above 13. Which of the following represents a correct order of eventsin an enzyme catalytic cycle? 1.enzyme changes shape 2.substrate binds to active site 3.substrate is converted to products 4. products are released from activesite __ 1>2>3>4 __ 2>1>3>4 __ 3>2>1>4 __ 2>4>3>1