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- 1. Multiple Choice
Chemicals that help chemical reactions occur at faster rates in living organisms are known as ___________
Biotic resources
Simple sugars
Oxygen molecules
Organic catalysts
- 2. Multiple Choice
Forming a chain of amino acids would produce a __________ molecule.
Carbohydrate
Protein
Nucleic Acid
Lipid
- 3. Multiple Choice
What are the monomer units of a protein?
Fatty Acid
Amino Acid
Nucleotide
Sugar
- 4. Multiple Choice
A sugar, a phosphate group and a nitrogen base make up the building blocks of which organic compound?
Carbohydrates
Lipids
Nucleic Acids
Proteins
- 5. Multiple Choice
Fructose, sucrose, and starch are all examples of ________.
Carbohydrates
Lipids
Nucleic Acids
Proteins
- 6. Multiple Choice
What are the repeating units that form a DNA molecule?
Fatty acids
Nucleotides
Amino Acids
Chromosomes
- 7. Multiple Choice
What are the monomer units of a lipid?
Fatty acid
Amino Acid
Nucleotide
Sugar
- 8. Multiple Choice
Most carbohydrates in the human body are .....
Used as building blocks for proteins
Used as a catalysts for reactions in cells
consumed as a source of energy
not easily absorbed into the bloodstream
- 9. Multiple Choice
A scientist removed the cell membranes from bacteria cells in a culture. She analyzed the cell membranes for specific molecules. Which of these was probably the most common type of molecule present in the bacteria cell membranes?
Lipid
Amino Acid
Nucleic Acid
Carbohydrate
- 10. Multiple Choice
Which statement describes the major role of lipids within a cell?
They cause DNA to replicate
They move RNA in the cytoplasm
They catalyze chemical reactions in the cell cytoplasm
They are the main structural components of membranes
- 11. Multiple Choice
A dog gets many nutrients from its food including amino acids. Which of these can be build directly using the amino acids?
Proteins
Carbohydrates
Lipids
Minerals
- 12. Multiple Choice
Cardinals are birds that spend the winter in Maryland. Many people feed them sunflower seeds during the winter months. What are the monomer units of a carbohydrate?
amino acid
sugar
fatty acid
nucleotide
- 13. Multiple Choice
According to the table, which of the molecules is a lipid?
1
2
3
4
- 14. Multiple Choice
Which group of organic compounds contains fatty acids?
Carbohydrates
Lipids
Nucleic Acids
Proteins
- 15. Multiple Choice
In order to enter cells and be useful to the body, starch must be....
absorbed through the skin
broken down into fats and water
digested into simple sugars
converted to carbon dioxide
- 16. Multiple Choice
The main function of proteins in the cell is....
providing the body with energy
structural components of the cell membrane
providing the instruction for synthesizing proteins
catalyzing chemical reactions in the cell
- 17. Multiple Choice
An organism has numerous amino acid monomers that need to be changed into a protein chain, which reaction will be used?
Dehydration
Hydroloysis
Photosynthesis
Respiration
- 18. Multiple Choice
According to the table which of the molecules represents a nucleic acid?
1
2
3
4
- 19. Multiple Choice
Viruses are made up of either DNA or RNA surrounded by a coating of protein. When the two main substances that make up a virus are broken into smaller fragments, the fragments are _______
fatty acids and amino acids
amino acids and simple sugars
amino acids and nucleotides
fatty acids and glycerol
- 20. Multiple Choice
RNA and DNA are which type of organic macromolecule?
Carbohydrate
Lipid
Protein
Nucleic Acid
- 21. Multiple Choice
Why is carbon able to be the building block of organic compounds?
able to make 4 bonds
light in atomic weight
large
non-reactive element
- 22. Multiple Choice
According to the table, which of the molecules in the table is a protein?
1
2
3
4
- 23. Multiple Choice
After eating a large plate of spaghetti, an organism must break down the starch into it smaller monomer sugars using which reaction?
dehydration
hydrolysis
rehydration
photosynthesis
- 24. Multiple Choice
The individual units that build can form a polymer are called...
singlets
monomers
unomere
- 25. Multiple Choice
What are the monomer units of a carbohydrate?
Starch
Sugar
Amino Acid
Nucleotide
- 26. Multiple Choice
According to the table shown, which of the molecules in the table is a carbohydrate?
1
2
3
4
- 27. Multiple Choice
What are the monomer units of a nucleic acid?
Sugar
Fatty Acid
Nucleotide
Amino Acid
- 28. Multiple Choice
Creating a chain of sugar monomers would result in a ___________ molecule.
Protein
Starch
Lipid
Nucleic Acid
- 29. Multiple ChoiceA substance that is dissolved in a liquid is called thesolventsolutionsolutepolar
- 30. Multiple ChoiceWhat property of water molecules causes surface tension and cohesion?Covalent bondsBent shapeAll non-metal atomsPolarity
- 31. Multiple ChoiceWhich statement describes the polarity of a water molecule?The oxygen end has slight positive charge and the hydrogen end has a slight negative chargeThe oxygen end has a slight negative charge and the hydrogen end has a slight positive chargeElectrons are shared evenly between the hydrogens and the oxygen.The charge on each end of the molecule is balanced.
- 32. Multiple ChoiceRefer to the picture; this is occurring because of:AdhesionCohesion
- 33. Multiple ChoiceRefer to the picture; this is occurring due to:AdhesionCohesion
- 34. Multiple ChoiceEnzymes are considered to beLipidsCarbohydrateProteinNucleic Acid
- 35. Multiple ChoiceWhat is the purpose of an enzyme?give permission for the reactionraise activation energyspeed up reactionscontrol how many reactions occur
- 36. Multiple ChoiceWhere do substrates bind on an enzyme?voltage-gated channelssurface receptorcalcium channelsactive site
- 37. Multiple ChoiceEnzymes are capable of increasing the rate of a chemical reaction within a living cell. Enzymes accomplish this through which of the following means?reducing the number of productsreducing the activation energyincreasing the temperature of the cellincreasing the concentration of reactants
- 38. Multiple ChoiceWhat is structure A?SubstrateActive siteEnzymeProducts
- 39. Multiple ChoiceWhat is structure D?SubstrateActive siteEnzymeProducts
- 40. Multiple ChoiceWhat is structure C?SubstrateActive siteEnzymeProducts
- 41. Multiple ChoiceWhat is structure E, F, G?SubstrateActive siteEnzymeProducts
- 42. Multiple ChoiceWhat is a substance called if it speeds up a chemical reaction?reusablecatalystspecificfragile
- 43. Multiple ChoiceEach enzyme only has 1 substrate that will fit its active site. What is this called?reusablecatalystspecificfragile
- 44. Multiple ChoiceOnce a new product leaves an enzyme, the enzyme is unchanged and ready for the next substrate. What is this called?reusablecatalystspecificfragile
- 45. Multiple ChoiceWhat 3 letters do enzymes typically end in?-ose-ase-ese-tic
- 46. 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 .
- 47. Multiple ChoiceWhich chemical is classified as an enzyme?GalactoseLipidProteaseManganese dioxide
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