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- 1. Multiple Choice
The area that the substrate fits into on the enzyme is called the:Active SiteAllosteric SiteDiSulphide Bridgeβ-Pleated Sheet - 2. Multiple ChoiceEnzymes catalyze reactions by ___________ Activation Energy.IncreasingDecreasing
- 3. Multiple ChoiceAt high temperatures enzyme activity declines because of:DenaturationDecreased Kinetic MotionIncreased H-BondingDissociation of Ionic Compounds
- 4. Multiple ChoiceMost enzymes have the ending:-ase-ose-ic acid-ate
- 5. Multiple ChoiceThe graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?Enzymes increase the energy of the reactants.Enzymes decrease the energy level of the products.Enzyme decrease the activation energy of the reaction.Enzymes reverse the direction of the reaction.
- 6. Multiple ChoiceBased on the graph, what is the optimal temperature for this enzyme?15oC40oC30oC35oC
- 7. Multiple ChoiceEnzymes are...nucleic acidsproteinslipidscarbohydrates
- 8. Multiple ChoiceLetter D...active siteenzymesubstrateproducts
- 9. Multiple ChoiceLetter B...active siteenzymesubstrateproducts
- 10. Multiple ChoiceLetter C...active siteenzymessubstrateproducts
- 11. Multiple ChoiceLetter E...active siteenzymesubstrateproducts
- 12. Multiple ChoiceWhich of the following conclusions can be drawn from this graph?The optimum pH of the enzyme is 6.6.The optimum pH of the enzyme is 5.8The enzyme’s activity increases as pH increases 5.0 to 9.0The enzyme’s activity is greater around pH of 8.0 .
- 13. Multiple ChoiceWhich factor denatures a enzyme?Excessive heatNothing canExposure to lightExposure to bacteria
- 14. Multiple ChoiceThe "lock and key hypothesis" attempts to explain the mechanism of?Vacuole formationPinocytosisSharing of electronsEnzyme are specific to a substrate
- 15. Multiple Choice
A student is conducting a lab experiment where he attempts to identify biomolecules using various foods.
He knows the inside of a corn seed holds a large amount of starch used to feed the growing plant.
What biomolecule would he expect to find during his investigation?
carbohydrate
lipid
protein
nucleic acid
- 16. Multiple Choice
Looking at the image of the cheesburger, what biomolecules are present?
carbohydrates
lipids
protein
nucleotides - but there they do not provide any energy
nucleotides - but they are the only source of energy
- 17. Multiple Choice
What are the parts of a nucleotide?
phosphate
5 carbon sugar
nitrogen base
enzyme
fatty acid
- 18. Multiple Choice
Glucose is the most common monosaccharide. It is used by cells to synthesize larger polysaccharides like Starch or Glycogen. What biomolecule is glucose?
carbohydrate
lipid
protein
nucleic acid
- 19. Multiple Choice
Which monomer below is the building block of polypeptides (aka proteins)?
- 20. Multiple Choice
At 9 kcal/gram this biomolecule has the most energy per gram.
carbohydrates
lipids
proteins
nucleic acids
- 21. Multiple Choice
The area that the substrate fits into on the enzyme is called the:
Active Site
Allosteric Site
DiSulphide Bridge
β-Pleated Sheet
- Answer choicesTagsAnswer choicesTags