Cell wall: outer layer, rigid, strong, stiff, made of cellulose, support, protection, allow H2O, O2, CO2 to
pass into and out of the cell.
cell membrane: inside cell wall, selectively permeable, support, protection, controls movement of
materials in and out of the cell, barrier between cell and its environment, maintains
homeostasis
nucleus: large, oval, controls cell activities
nuclear membrane: surrounds nucleus, selectively permeable, controls movement of materials in and
out of nucleus
cytoplasm: clear, thick, jellylike material and organelles found inside cell membrane, supports/protects
cell organelles
endoplasmic reticulum: network of tubes/membranes, carries materials through cells
ribosome: small bodies free or attached to endoplasmic reticulum, produces proteins
mitochondrion: bean-shaped with inner membranes, breaks down sugar molecules into energy
vacuole: fluid-filled sacs, store food, water and waste, help maintain the shape of the cell.
lysosome: small, round, with a membrane, breaks down larger food molecules into smaller molecules,
digests old cell part
chloroplast: green, oval, uses energy from sun to make food for plant.
amyloplast: an organelle in some plant cells that stores starch.
It maintains a delicate equilibrium.
Source: 1. http://www.enchantedlearning.com/subjects/plants/cell/
2. http://www.usoe.k12.ut.us/CURR/science/sciber00/7th/cells/sciber/orgtable.htm
