Cells

What’s Inside a Cell?All cells consist of a ___cell membrane that is filled with organelles. Inside the cells of most organisms is a major structure called the nucleus. In addition, plant cells have a cell wall and chloroplasts.

The Cell MembraneThe cell membrane is a thin, flexible, outer ________that controls the movement of materials in and out of the cell.

It also hold the cell together and gives the cell its __________.shape

“skin”

The NucleusThe nucleus is the COMMAND CENTER or BRAIN for the cell. It is usually found near the center and is the “boss.” The nucleus controls all of a cell’s activities.

The CytoplasmCytoplasm is the name for all of a cell’s living material except the nucleus. It is 70-80% water and somewhat like ___________. It is crowded with different ___________ (a small part of the cell).

Jell-O

organelles

MitochondriaThey are compared to A POWER HOUSE. They release energy by using oxygen to burn the fuel that comes from food.

VacuolesThese are the cell’s ____________ organelles. They store water and nutrients until the cell is ready to use them. They also store waste until it is ready to get rid of it.

storage

Endoplasmic ReticulumA network of passages that help make and _____________ proteins. Proteins are needed for _________, repair, and replacement of cells. They also contain ribosomes which make proteins.*Like an intracellular highway”

transport

growth

Surrounds the Nucleus

Golgi BodiesA stack of flat, pancake-shaped discs that modify, sort, package, and store _______________ and proteins until they are needed. They also make lysosomes.

carbohydrates

LysosomesRound organelles that ___________ cell nutrients. They are the ___________ collectors of the cell.

Digest

garbage