Section 6&7 Flashcards
A barrier that separates a cell from its surroundings
Cell membrane
Molecules in a cell that contain genetic information
DNA
Simple cells that do not have a nucleus; this type of cell is found in bacteria
Prokaryotic cells
Cells that have a true nucleus and make up all other organisms other than bacteria
Eukaryotic cells
Long, hairlike filaments that some single-cel led organisms use to propel them forward
Flagella
Short, hairlike projection that some cells use for movement
Cilia
Cellulose structure that surrounds plant cells and gives them support and protection
Cell wall
A type of carbohydrate that is unique to plants; found in the cell walls of plants and is also called “fiber”
Cellulose
A large organelle in most plant cells that is filled mostly with water and helps to give the cell structural support
Vacuole
Organelles that are unique to plant cells (and some types of algae); used in photosynthesis
Chloroplasts
A process used by plants that convert light energy, carbon dioxide, and water into glucose (sugar) and oxygen
Photosynthesis
The smallest unit of life
Cell
Process that creates different types of specialized cells
Cellular differentiation
A group of cells that work together to perform of function
Tissue
Different types of tissue that work together to perform a function
Organ
Different organs that work together to carry out a function
Organ system
The process of keeping the internal conditions in an organism stable
Homeostasis
The movement of materials into and out of cells
Cellular transport
The membrane that surrounds the contents of a cell and allows only certain things into and out of the cell only
Cell membrane
A property of cell membranes that allows certain things to cross but not to others
Selectively permeable
The smallest unit of life
Cell
