WorksheetsOrganics Assessment Practice
Total questions: 28
Worksheet time: 19mins
Which of the following is NOT a correct statement explaining why carbon makes up so many large and complex molecules?
carbon's 4 valence electrons allow for multiple chemical bonds
carbon can bond to itself
carbon is the largest and most popular element
carbon can bond to other elements is various combinations
Which elements are NOT involved in forming organic molecules?
carbon
sulfur
uranium
helium
oxygen
Which other elements are also NOT involved in organic molecules?
hydrogen
phosporous
iron
nitrogen
Which organic molecules has the building blocks of amino acids?
carbohydrates
lipids
proteins
nucleic acids
Which organic molecules has the building blocks of nucleotides?
carbohydrates
lipids
proteins
nucleic acids
Which organic molecules has the building blocks of monosaccharides?
carbohydrates
lipds
proteins
nucleic acids
Which organic molecules has the building blocks of glycerol and fatty acids?
carbohydrates
poteins
lipids
nucleic acids
Which organic molecule is the main source of energy in living things and also serves structural purposes?
carbohydrates
proteins
lipids
nucleic acids
Which organic molecule group controls the rate of chemical reactions?
carbohydrates
proteins
lipids
nucleic acids
Which organic molecule stores energy for later use?
carbohydrates
proteins
lipids
nucleic acids
Which organic molecule carries genetic information from one generation to the next?
carbohydrates
proteins
lipids
nucleic acids
Which organic molecule is responsible for biological membranes?
carbohydrates
proteins
lipids
nucleic acids
Which organic molecule helps fight disease as antibodies?
carbohydrates
proteins
lipids
nucleic acids
Which organic molecule allows for transport of materials into and out of cells?
carbohydrates
proteins
lipids
nucleic acids
During HYDROLYSIS (a) is added to a polymer resulting in monomers.
During HYDROLYSIS polymers are (a) into monomers.
During HYDROLYSIS (a) is released from chemical bonds for the organism to use.
During DEHYDRATION SYNTHESIS (a) is removed from monomers in order to create polymers.
During DEHYDRATION SYNTHESIS (a) is stored in chemical bonds between monomers creating a polymer.
During DEHYDRATION SYNTHESIS polymers are (a) from monomers.
An enzyme...
is a protein
acts as a catalyst
speeds up certain chemical reactions
slows down certain chemical reactions
Identify the parts of an enzyme-substrate complex?
reactants
substrate(s)
an enzyme
product(s)
Building up macromolecules...
stores energy
releases energy
adds structure to an organism
removes structure from an organism
Breaking down macromolecules...
stores energy
releases energy
adds structure to an organism
removes structure from an organism
Enzyme-substrate complexes allow reactions to take place faster by
increasing the time for a reaction to take place
decreasing a reaction's activation energy
supplying constant activation energy
jumping ahead in line
Protons...
are positively charged
are found in the nucleus
determine the atomic number
have the same mass as a neutron
help in determining the atomic mass
Neutrons...
are neutral
are found in the nucleus
help determine the atomic mass
have the same mass as a proton
have the opposite charge of an electron
Electrons...
are found outside of the nucleus
are negatively charged
help in determining the atomic mass
have the same mass as a proton
are equal in number to protons in a neutrally charged atom
