GLOSSARY

Use this space for vocabulary terms and definitions.

__Section 2.3__ Cell Cycle- The life cycle of a cell

Chromosomes- What the DNA is organized into

Binary Fission- When cells split into 2 parts

Homologous- the pairs of similar chromosomes

Chromatids- The two copies of a chromosome

Centermere- Where chromatids are held together

Mitosis- The complicated process of chromosome seperation

__** Section 2.1 Exchange with the Evironment﻿ **__ Diffusion- The movement of particles from an area where their concentration is high to an area where their concentration is low.

Osmosis- The diffusion of water through the cell membrane.

Passive Transport- The diffusion of particles through the protiens.

Active Transport- The movement of particles through proteins againt the normal direction of diffusion.

Endocytosis- The cell membrane surrounds a particle and encloses it in a vesicle.

Exocytosis- Vesicles are formeed at the endoplasmic reticulum or Golgi complex and carry the particles to the cell membrane.

__Section 2.2 Cell Energy__ Photosynthesis- The process by which plants capture light energy from the sun andcovert it into sugar.

Cellular Respiration- The process of producing ATP in the cell from oxygen and glucose; releases carbon dioxide and water.

Fermentation- The breakdown of sugars to make ATPin the absence of oxygen.