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The process by which molecules move from an area of higher concentration to an area of lower concentration.
A property of cell membranes that allows some substances to pass through, while others cannot.
Energy-rich organic compound, such as a sugar or a starch, that is made of the elements carbon, hydrogen, and oxygen.
Energy-rich organic compound, such as a fat, oil, or wax, that is made of carbon, hydrogen, and oxygen.
Very large organic molecule made of carbon, oxygen, hydrogen, nitrogen, and phosphorus, that contains the instructions cells need to carry out all the functions of life.
Deoxyribonucleic acid; the genetic material that carries information about an organism and is passed from parent to offspring.
The process by which cells break down simple food molecules to release the energy they contain.
The process by which cells break down molecules to release energy without using oxygen.
The stage of the cell cycle during which the cell's nucleus divides into two new nuclei and one copy of the DNA is distributed into each daughter cell.
The final stage of the cell cycle, in which the cell's cytoplasm divides, distributing the organelles into each of the two new cells.
A complex of nucleic acids and proteins, primarily histones, in the cell nucleus that stains readily with basic dyes and condenses to form chromosomes during cell division.
The system for naming organisms in which each organism is given a unique, two-part scientific name indicating its genus and species
A group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce
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