Create an account
Positively charged particles with the same mass as a neutron. Makes up the nucleus with the neutrons.
Neutrally charged particles with the same mass as a proton. Makes up the nucleus with the protons.
When a molecule (water) has an uneven distribution of electrons between the oxygen and hydrogen atoms. (positive and negative charged ends)
A weak chemical bond formed by the attraction of positively charged hydrogen atoms to other negatively charged atoms
Water's cohesion cause molecules on the surface of water to be drawn inward, which is why drops of water form beads on a smooth surface.
One of the forces that draw water out of the roots of a plant and up into its stems and leaves.
Weak acids or bases that can react with strong acids or bases to prevent sharp, sudden changes in pH.
Carbon atoms have four valence electrons. Each electron can join with an electron from another atom to for a strong covalent bond.
Compounds made up of carbon, hydrogen, and oxygen atoms with a ratio of 1:2:1. Used as the main source of energy and for structural purposes in living things. (Quick energy)
Made mostly from carbon and hydrogen atoms. Common categories are fats, oils, and waxes. Used to store energy, in important parts of biological membranes, and for waterproof coverings.
Made mostly of nitrogen as well as carbon, hydrogen, and oxygen. Used for structure and support, help to fight disease, carry out cell functions, and form bones and muscles.
Proteins that speed up (catalyze) chemical reactions that take place in cells and lower activation energy. Temperature and pH affect how well it works.
Made mostly of hydrogen, oxygen, nitrogen, carbon, and phosphorus. Used to store and transmit hereditary, or genetic, information.
Consist of three parts: a 5 - carbon sugar, a phosphate group, and a nitrogen base. Monomer of Nucleic Acids
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together