Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chapter 6 Vocab
Chapter 6 Key Terms
| Term | Definition |
|---|---|
| Element | substances that can't be broken down into into simpler chemical substances. |
| Atom | smallest particle of an element that has the characteristics of that element. |
| Nucleus | center of an atom. |
| Isotopes | atoms of the same element that have different numbers of neutrons. |
| Compound | a substance that is composed of atoms of two or more different elements that are. chemically combined. |
| Covalent bond | chemical bond formed when two atoms share electrons. |
| Molecule | group of atoms held together by covalent bonds. |
| Ion | a charged particle made of atoms. |
| Ionic bond | the attractive force between two ions of opposite charge. |
| Metabolism | all of the chemical reactions that occur within an organism. |
| Mixture | a combination of substances in which the individual components retain their own properties. |
| Solution | a mixture in which one or more substances are distributed evenly in another substance. |
| pH | a measure of how acidic or basic a solution is. |
| Acid | any substance that forms hydrogen ions in water. |
| Base | any substance that forms hydroxide ions in water. |
| Polar molecule | a molecule with an unequal distribution of charge. |
| Hydrogen bond | attraction of opposite charges between hydrogen and oxygen forms a weak bond. |
| Diffusion | net movement of particles from an area of higher concentration to an area of lower concentration. |
| Dynamic equilibrium | result of diffusion where there is continuous movement of particles but no overall change in concentration. |
| Isomers | compounds that have the same chemical formula but different three-dimensional structures. |
| Polymer | a large molecule formed when many smaller molecules bond together. |
| Carbohydrate | a bio-molecule composed of carbon, hydrogen, and oxygen with a ratio of about two hydrogen atoms and one oxygen atom for every carbon atom. |
| Lipids | large bio-molecules that are mostly of carbon and hydrogen with a small amount of oxygen. |
| Protein | a large, complex polymer composed of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. |
| Amino acids | basic building blocks of proteins. |
| Peptide bond | the covalent bond formed between the amino acids. |
| Enzyme | a protein that changes the rate of a chemical reaction. |
| Nucleic acid | a complex bio-molecule that stores cellular information in the form of a code. |
| Nucleotides | nucleic acids are polymers made of smaller substances called |
Created by:
smith_luke
Popular Biology sets