Organic molecules composed of only carbon, oxygen, and hydrogen.
Compounds with an amino group at one end and a carboxyl group at the other.
Organic molecules that do not dissolve, or break apart, in water.
Large, complex molecules made up of carbon, hydrogen, oxygen, nitrogen, and phosphorous.
Individual units of nucleic acid that are made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base.
Basic building blocks of all living things.
Specialized structures that carry out the functions of cells.
Control center of the cell that contains the cell's DNA.
A thin layer that surrounds the cell.
Some substances can pass through easily whereas others cannot.
The jellylike material inside the cell that is located between the cell membrane and the nucleus.
Places where proteins are made in the cell.
A system of membranes and sacs that acts like a highway along which molecules can move from one part of the cell to another.
Organelle that modifies and refines the proteins depending on where they are being sent.
Sites of chemical reactions that transfer energy from organic compounds into a substance called adenosine triphosphate (ATP).
Small, spherical organelles that act as the cell's digestive system.
The outer layer that surrounds the cell membrane and makes the cell rigid and protects it from harm.
A fluid-filled organelle that stores enzymes and wastes.
Surrounded by a double membrane and contain pigments and genetic material.
Contain the green pigment responsible for giving plants their green color and for absorbing sunlight so that plants can make food.
Organisims whose cells have a membrane-bound nucleus and organelles.
Organisms in which the genetic information is not contained in a membrane-bound nucleus and do not contain membrane-bound organelles.
Made up of more than one cell.
Groups of similar cells
Group of related tissues.
Groups of related tissues that work together to perform a set of related tasks.