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17 Cards in this Set

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  • Back
Cell membrane
All cells have a cell membrane. In some cells it is located just inside the cell wall, but in others it forms the outside boundary.
cell wall
A cell wall is a rigid layer of nonliving material that surrounds the cells of animals and other organisms. A plant`s cell wall helps wall to protect and support the cell.
Nuclear envelope
A nuclear envelobe is a specific membrane that protects the nucleus. It protects the nucleus.
A nucleous is a small objest, which floats around the nucleus. In a nucleolus ribosoms are produced. Ribosoms produce proteins, which are important chemicals for proteins.
Chromatin are thin strands ahead of the nucleus. Chromatin contains genetic material.Chromatin knows how the nucleus directs the cell. Ex. The instructions in the chromatin ensure that leaf cells grow and divide to form more leaf cells.
Mitochondria are rod-shaped organelles. They are also known as powerhousesof the cell because they convert energy in food molecules to energy the cell can use to carry out its functions.
Endoplasmic Reticulum
In the cytoplasm you find the endopl., which look like passageways. the passageways carry the proteins and other materials from one part of the cell to another.
Attached to the surface of the endopl. are small grainlike bodies, which are the ribosomes. Other ribosomes also float in the cytoplam. Ribosomes function as factories to make proteins.
Inside a cell there is (nucleus) a big, oval structure. The nucleus acts as a brain of the cell or a control center, where it directs all of the cell's activities.
Golgi Bodies
The golgi body looks like flattend tubes and sacs. it is used simialar to a post office. It receives proteins and other materials from the endopl. packages them and distribute them to other parts of the cell.
Chloroplasts are green structures,which are floating in the cytoplasm. Only cells of plants an some other organisms have these green organelles. Chloroplast captures the energy from sunlight and uses it to produce food for the cell. It also makes leaves green.
A vacuole is a water-filled sac floating in the cytoplasm. it stores for the cell.
Lysosomes are near the vacuole. They are small,round structures cointaining chemicals that break down certain materials in the cell. It helps break down old cells to so they can be used again.
Inside a cell the different organelles have a different fuction, just like the lungs, the heart, etc. do by humans.
A tissue is a group of simialar cells that work together to perform a specific function.
Bacterial cells
Bacterial cells are usually much smaller than plant or animal cells. It looks like a thick, tangeled string. It has no membrane or cell wall.
The cytoplasm includes a gel-like fluid in which many different organelles are found.