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- 1. Multiple ChoiceSteroid hormones are signal molecules that are derived from lipids. Which of the following would be INCORRECT regarding steroid hormones?They are non-polar.They are hydrocarbons made up of carbon, hydrogen, and oxygen.They are hydrophobicThey will be used for long term energy
- 2. Multiple ChoiceAll organic compounds contain the elementcarbon and hydrogennitrogen and oxygenphosphorus and nitrogensulfur and carbon
- 3. Multiple Choice
Which macromolecule is shown?lipidproteinnucleic acidcarbohydrate - 4. Multiple ChoiceAmino acids all have the same general structure except for the:Amino GroupCarboxyl Group'R' GroupCarbonyl Group
- 5. Multiple Choice
The diagram shows a bond forming between two amino acids. What term does this picture show?
Dehydration/Condensation
Hydrolysis
Pepysis
Oxidation
- 6. Multiple Choice___________ are some functions of lipids.storing energy and cell membrane structureproviding actin & providing myosincellulose structure and digestive assistancestoring & transferring genetic info
- 7. Multiple ChoiceThe monomer, building block, of proteinsAmino AcidFatty AcidNucleotidemonosaccharide
- 8. Multiple ChoiceThe monomer, building block, of carbohydrates; simple sugarAmino acidFatty AcidNucleotideMonosaccharide
- 9. Multiple ChoiceWhich of the structures shown is an impossible covalently bonded molecule?ABCD
- 10. Multiple ChoiceWhich functional group has the molecular formula of CH3?MethylAminoHydroxyCarbonyl
- 11. Multiple ChoiceA molecule with electrically charged areas is called a _______________.magnetpolar moleculesolutionelectrical molecule
- 12. Multiple ChoiceIf an element has an atomic number of 5 and an atomic mass of 10, how many neutrons are in this element?
A=P=E
M-A=N105052 - 13. Multiple ChoiceIf an atom has 10 electrons, how many protons does it have?01105
- 14. Multiple ChoiceHow many protons does an Aluminum atom have? (use the picture to help you)27131440
- 15. Multiple ChoiceIsotopes have different numbers ofprotonsneutronselectronproperties
- 16. Multiple ChoiceWhich of the following best summarizes the relationship between dehydration reactions and hydrolysis?Hydrolysis only occurs in the urinary system, and dehydration reactions only occur in the digestive tract.Hydrolysis creates monomers, and dehydration reactions break down polymers.Dehydration reactions can occur only after hydrolysis.Dehydration reactions assemble polymers, and hydrolysis breaks down polymers.
- 17. Multiple ChoiceWhat is the molecule illustrated in the figure below?a trans polyunsaturated triacylglyceridea steroid similar to cholesterola saturated fatty acidan unsaturated fatty acid
- 18. Multiple ChoiceAt which level of protein structure are interactions between the R groups most important?PrimarySecondaryTertiaryQuaternary
- 19. Multiple ChoiceThe 20 different amino acids found in polypeptides exhibit different chemical and physical properties because of differentamino groups attached to an alpha carbonasymmetric carbons.carboxyl groups attached to an alpha carbonside chains (R groups).
- 20. Multiple ChoiceHumans can digest starch but not cellulose becausehumans have enzymes that can hydrolyze the alpha glycosidic linkages of starch but not the beta glycosidic linkages of cellulose.the monomer of starch is glucose, while the monomer of cellulose is galactose.humans have enzymes that can hydrolyze the betathe monomer of starch is glucose, while the monomer of cellulose is maltose.
- 21. Multiple ChoiceHow many atoms can a Carbon atom potentially bind to?1234
- 22. Multiple ChoiceHow many structures or stages are there in proteins?1234
- 23. Multiple ChoiceWhich stage is it where all of the amino acids are in a straight line?1234
- 24. Multiple ChoiceThe tertiary structure folding in proteins is primary due to the interactions of....the 'R' groupsthe 'P' groupsthe 'A' groupsthe 'S'
- 25. Multiple ChoiceThe main bonding in the secondary structure of a protein is due to.....covalent bondingionic bondinghydrogen bondingpolar bonding
- 26. Multiple ChoiceAlpha helix and beta pleated sheets are part of what level of protein structure?primarysecondarytertiaryquaternary
- 27. Multiple ChoiceWhich level of protein structure detremines the function of a protein?primarysecondarytertiaryquarternary
- 28. Multiple ChoiceWhich statement is correct based on the structure of the macromolecule shown above?The long hydrocarbon chain makes it insoluble in water.The hydroxyl groups make it soluble in water.The carboxyl group makes it soluble in water.The solubility is determined by the addition of an “R” group.
- 29. Multiple ChoiceWhen glycogen is hydrolyzed, it formsCelluloseSucrosePolysaccharidesGlucose
- 30. Multiple ChoiceGalactose and glucose are both monosaccharides with the molecular formula C6H12O6. When these two molecules undergo dehydration synthesis, they form lactose, milk sugar. What is the structural formula of lactose?C11H22O12C12H24O12C12H23O11C12H22O11
- 31. Multiple ChoiceWhich of the following levels of protein structure is not interrupted during denaturation?PrimarySecondaryTertiaryQuaternary
- 32. Multiple ChoiceWhich statement is correct based on the structure of the molecule shown above?The molecule can be found in seeds.The molecule contributes to high LDL cholesterol.The molecule is solid at room temperature.The molecule is stored as glycogen in the body.
- 33. Multiple ChoiceChitin is a polysaccharide similar to cellulose, except that one hydroxyl group is replaced with a nitrogen group. In its natural state, chitin is strong but pliable. When paired with calcium carbonate, however, it becomes very strong and inflexible. Which of the following statements must also be true concerning chitin?It is composed of glucose.It is double stranded.It can be denatured at high temperatures.It is liquid at room temperature.
- 34. Multiple ChoiceStarch and glycogen are important polysaccharides. In what way are they different?Starch is soluble in water while glucose is not.Starch is composed of cellulose while glycogen is composed of glucose.Glycogen is found in animals while starch is found in plants.They both function as a source of energy.
- 35. Multiple ChoiceBirds are known to migrate long distances throughout the year. The Manx Shearwater, for example, migrates 8,700 miles between the northern breeding grounds and the southern ocean. During migrations, when food is not available, birds use what type of stores in their body to fuel their flight?Amino acidsPhospholipidsChitinTriglycerides
- 36. Multiple ChoiceWhich biomolecule is this a picture of?ProteinNucleic AcidLipidCarbohydrate
- 37. Multiple ChoiceWhich biomolecule is this a picture of?ProteinNucleic AcidLipidCarbohydrate
- 38. Multiple ChoiceWhich biomolecule is this a picture of?ProteinNucleic AcidLipidCarbohydrate
- 39. Multiple ChoiceWhich biomolecule is this a picture of?ProteinNucleic AcidLipidCarbohydrate
- 40. Multiple ChoiceWhich biomolecule is your main source of energy?Nucleic AcidProteinLipidCarbohydrate
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