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- 1. Multiple ChoiceWhich of the following is not a macromolecule?proteincarbohydratefatty acidlipid
- 2. Multiple ChoiceWhich macromolecule is made of simple and complex sugars?lipidsproteinscarbohydratesnucleic acids
- 3. Multiple ChoiceDNA and RNA are examples of...proteinsnucleic acidscarbohydrateslipids
- 4. Multiple ChoiceWhich macromolecule stores energy, insulates us, and makes up the cell membrane?lipidsproteinscarbohydratesnucleic acids
- 5. Multiple ChoiceWhat is the monomer of proteins?amino acidspolypeptidesnucleotidesmonosaccharides
- 6. Multiple ChoiceAll polymers are made up of...monosaccharidesmonomersproteinsNone of these
- 7. Multiple ChoiceAnother name for fats and oilsproteinssugarlipidsnucleic acids
- 8. Multiple ChoicePhospholipids are used in what biological structure?RNADNACell membraneCell wall
- 9. Multiple ChoiceWhat is the monomer of nucleic acids?GlycerolMonosaccharidesAmino AcidsNucleotides
- 10. Multiple Choice
Which macromolecule is this?carbohydratelipidproteinnucleic acid - 11. Multiple ChoiceMost enzymes:speed up the chemical reactionhave no effect on the rate of the chemical reactionslow the rate of the chemical reactionkeep the rate of the chemical reaction the same
- 12. Multiple ChoiceWhich of the following is NOT a function of proteins?form parts of tissues such as bone and muscleserve as catalysts that control the rate of chemical reactions in the cellmake up antibodiesstore genetic information
- 13. Multiple ChoiceA monosaccharide is a:nucleic acidlipidcarbohydrateprotein
- 14. Multiple ChoiceWhat suffix is used in the names of most enzymes?- ase- gen- yme-nic
- 15. Multiple ChoiceWhat is true about enzymes?Their overall shape can change without affecting their functionThey are unaffected by changes in pHThey are unaffected by changes in temperatureThey catalyze one specific type of reaction
- 16. Multiple ChoiceEnzymes are usually which of the following---carbohydrateslipidsproteinsnucleic acids
- 17. Multiple ChoiceAn enzyme acts as a catalyst to a chemical reaction bylowering the activation energy needed to get the reaction started.making one of the substrates needed for the reaction.regulating the temperature at which the reaction takes place.regulating the pH at which the reaction takes place.
- 18. Multiple ChoiceThe graph shows the effect of temperature on enzyme action. What characteristic do enzymes E1, E2, and E3 share?Their activity increases between 20°C and 30°C.Their activity is greatest between 5°C and 10°C.Their activity is at a low level between 15°C and 25°C.Their activity is at a high level between 30°C and 40°C.
- 19. Multiple ChoiceA lock and key is sometimes used as a model to promote understanding of enzymes. Which characteristic of enzymes or their action is best illustrated by this model?The sensitivity of enzymes to changes in pHThe change in activation energy the enzymes causeThe specificity of fit between an enzyme and a substrateThe increase in reaction rate due to the action of the enzyme
- 20. Multiple Choice
which one of the following is NOT the property of enzymes?
enzyme actions are specific
enzymes can be reused
enzymes are affected by pH
Optimum temperature of all enzymes is 98.7 degrees F
- 21. Multiple Choice
Which macromolecule is shown?
carbohydrate
lipid
protein
nucleic acid
- 22. Multiple Choice
Which macromolecule is shown?
carbohydrate
lipid
protein
nucleic acid
- 23. Multiple Choice
Which macromolecule is shown?
carbohydrate
lipid
protein
nucleic acid
- 24. Multiple Choice
Which macromolecule is shown?
carbohydrate
lipid
protein
nucleic acid
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