Questão 1
Questão
Anything that has mass and takes up space:
[blank_start]matter[blank_end]
Questão 2
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An explanation or representation of something that cannot be seen:
[blank_start]model[blank_end]
Questão 3
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A collection of atoms that all have the same number of protons:
[blank_start]element[blank_end]
Questão 4
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Chemicals that result from atoms linking together:
[blank_start]molecules[blank_end]
Questão 5
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A change that affects the appearance but not the chemical makeup of a substance:
[blank_start]physical[blank_end] change
Questão 6
Questão
A change that alters the makeup of the elements or molecules of a substance:
[blank_start]chemical[blank_end] change
Questão 7
Questão
One of three forms: solid liquid or gas - which every substance is capable of attaining:
[blank_start]phase[blank_end]
Questão 8
Questão
The random motion of molecules from an area of high concentration to an area of low concentration:
[blank_start]diffusion[blank_end]
Questão 9
Questão
A measurement of how much solute exists within a certain volume of solvent:
[blank_start]concentration[blank_end]
Questão 10
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A membrane that allows some molecules to pass through but does not allow other molecules to pass through:
[blank_start]semipermeable[blank_end] membrane
Questão 11
Questão
The tendency of a solvent to travel across a semipermeable membrane into areas of higher solute concentration:
[blank_start]osmosis[blank_end]
Questão 12
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A substance that alters the speed of a chemical reaction but is not used up in the process:
[blank_start]catalyst[blank_end]
Questão 13
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A molecule that contains only carbon and any of the following: hydrogen, oxygen, nitrogen, sulfur, and/or phosphorous:
[blank_start]organic[blank_end] molecule
Questão 14
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The process by which living organisms produce larger molecules from smaller ones:
[blank_start]biosynthesis[blank_end]
Questão 15
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Two different molecules that have the same chemical formula:
[blank_start]isomers[blank_end]
Questão 16
Questão
Simple carbohydrates that contain 3 to 10 carbon atoms:
[blank_start]monosaccharides[blank_end]
Questão 17
Questão
Carbohydrates that are made up of two monosaccharides:
[blank_start]disaccharides[blank_end]
Questão 18
Questão
Carbohydrates that are made up of more than two monosaccharides:
[blank_start]polysaccharides[blank_end]
Questão 19
Questão
A chemical reaction in which molecules combine by removing water:
[blank_start]dehydration[blank_end] reaction
Questão 20
Questão
Breaking down complex molecules by the chemical addition of water:
[blank_start]hydrolysis[blank_end]
Questão 21
Questão
Lacking any affinity to water:
[blank_start]hydrophobic[blank_end]
Questão 22
Questão
A lipid made from fatty acids that have no double bonds between carbon atoms:
[blank_start]saturated fat[blank_end]
Questão 23
Questão
A lipid made from fatty acids that have at least one double bond between carbon atoms:
[blank_start]unsaturated fat[blank_end]
Questão 24
Questão
A bond that links amino acids together in a protein:
[blank_start]peptide bond[blank_end]
Questão 25
Questão
A strong attraction between hydrogen atoms and certain other atoms (usually oxygen and nitrogen) in specific molecules:
[blank_start]hydrogen bond[blank_end]
Questão 26
Questão
A special class of proteins that are used as catalysts:
[blank_start]enzymes[blank_end]