CELL STRUCTURECELL STRUCTUREDannye DiNizoDannye DiNizo

Lillian CherryLillian Cherry

Will GranberryWill Granberry

http://training.seer.cancer.gov/module_anatomy/unit2_1_cell_functions_1.html

Cell StructureCell Structure

NucleusNucleus

The positively The positively charged, center of an charged, center of an atom. The nucleus atom. The nucleus contains the DNA and contains the DNA and RNA of the cell. It’s RNA of the cell. It’s responsible for growth responsible for growth and reproduction. The and reproduction. The nucleus contains the nucleus contains the nuclear membrane, nuclear membrane, chromatin, and the chromatin, and the nucleolisnucleolis

http://www.uga.edu/caur/temimage.htm

CentrioleCentriole

Nine triplets of Nine triplets of microtubules form microtubules form one centriole. Two one centriole. Two centrioles form one centrioles form one centrosome. The centrosome. The centriole forms centriole forms spindle fibers to spindle fibers to separate separate chromosomes chromosomes during cell division.during cell division.

http://online-media.uni-marburg.de/histologie/introhis/HIS/txt/tacsem/tac06_sem.htm

LysosomeLysosome

A sac-like organelle A sac-like organelle of a cell that of a cell that contains enzymes contains enzymes for breaking down for breaking down waste waste

http://www.healthvalue.net/audeladesproteines.html

PeroxisomePeroxisome

A cell organelle A cell organelle that contains that contains enzymes that start enzymes that start the production and the production and breakdown of breakdown of hydrogen peroxide hydrogen peroxide

http://www.peroxisome.org/Scientist/scientist.html

Plasma MembranePlasma Membrane

It’s composed of It’s composed of proteins and lipids (fat proteins and lipids (fat molecules). It is the molecules). It is the outer membrane of a outer membrane of a cell. The membrane cell. The membrane acts as a boundary to acts as a boundary to contain the cytoplasm. contain the cytoplasm. It is also selectively It is also selectively permeable, to choose permeable, to choose which chemicals enter which chemicals enter and leave the cell.and leave the cell.

http://sst.nsu.edu/bio110/exams/Plasma_Membrane_Quiz.jpg

MitochondrionMitochondrion

An organelle An organelle located in the located in the cytoplasm cytoplasm containing genetic containing genetic material and material and enzymes important enzymes important for cell metabolism for cell metabolism

http://tidepool.st.usm.edu/crswr/110respiration.html

VacuoleVacuole

A single layer of A single layer of unit membrane unit membrane enclosing fluid in a enclosing fluid in a sac. It stores water sac. It stores water and various and various chemicals. chemicals.

http://sun.menloschool.org/~cweaver/cells/c/vacuole/

ChromatinChromatin

It is composed of It is composed of long thin strands of long thin strands of DNA. The DNA. The chromatin contains chromatin contains instructions that instructions that control cell control cell metabolism and metabolism and heredity. heredity.

http://www.uni-mainz.de/FB/Medizin/Anatomie/workshop/EM/EMKern.html

NucleolusNucleolus

Within the nucleus Within the nucleus is the nucleolus. is the nucleolus. The nucleolus is The nucleolus is like a “knot” of like a “knot” of chromatin. The chromatin. The nucleolus is where nucleolus is where ribosomes are ribosomes are manufactures. manufactures.

http://www.rockefeller.edu/rucal/journey/journey.html

Nuclear MembraneNuclear Membrane

Two unit Two unit membranes with a membranes with a fluid-filled space. It fluid-filled space. It is electively is electively permeable to permeable to control movement control movement in and out of the in and out of the nucleus. nucleus.

http://www.uni-mainz.de/FB/Medizin/Anatomie/workshop/EM/EMZelle.html

Smooth Endoplasmic Smooth Endoplasmic ReticulumReticulum

Sheets of the unit Sheets of the unit membrane with membrane with ribosomes on the ribosomes on the outside (rough). It outside (rough). It forms a tubular forms a tubular network throughout the network throughout the cell. It transports cell. It transports chemicals between and chemicals between and within cells. It Provides within cells. It Provides a large surface area for a large surface area for the organization of the organization of chemical reactions and chemical reactions and synthesis synthesis

http://www.kcl.ac.uk/kis/schools/life_sciences/biomed/bscb/softcell/er.html

Rough Endoplasmic Rough Endoplasmic ReticulumReticulumThe rough ER The rough ER specializes in protein specializes in protein synthesis, production synthesis, production of steroids, the of steroids, the storage and storage and production of production of glycogen, and the glycogen, and the insertion of insertion of membrane proteins.membrane proteins.

http://trc.ucdavis.edu/mjguinan/apc100/modules/TermsCells&Tissues/structures/ER.html

Ribosomes Ribosomes

Small cellular Small cellular components components composed of composed of specialized specialized ribosomal RNA and ribosomal RNA and protein. It is the protein. It is the site of protein site of protein synthesis. synthesis.

http://www.rockefeller.edu/rucal/journey/journey.html

Golgi ApparatusGolgi Apparatus

A group of A group of combined combined membranous membranous vesicles present in vesicles present in animal cells that animal cells that work for the work for the formation of formation of secretions within secretions within the cell. the cell.

http://web.mit.edu/esgbio/www/cb/org/organelles.html

Microtubules (Cytoskeleton)Microtubules (Cytoskeleton)

http://www.noble.org/Press_Release/PlantBio/BlancaflorNASA/

Tubular structures Tubular structures that provide that provide structural support structural support to the cellto the cell

CytosolCytosol

The cytosol is a The cytosol is a semi-fluid semi-fluid component of the component of the cell’s cytoplasm. cell’s cytoplasm. The cytosol is also The cytosol is also where most of the where most of the cell’s metabolism cell’s metabolism takes place. takes place. http://www014.upp.so-net.ne.jp/cytosol/

MicrovilliMicrovilli

Microvilli are hair-Microvilli are hair-like pieces of like pieces of microfilaments that microfilaments that out pouch from the out pouch from the nuclear membrane nuclear membrane in extra cellular in extra cellular space. They are space. They are often used to help often used to help move the cell. move the cell.

http://www.cytochemistry.net/Cell-biology/actin_filaments.htm

Microfilament Microfilament (Cytoskeleton)(Cytoskeleton)• A transport system A transport system

for the cell, but it for the cell, but it also makes lipids, also makes lipids, processes processes carbohydrates, and carbohydrates, and detoxifies detoxifies substances, such substances, such as poisons and as poisons and alcohol.alcohol.

http://www.bi.umist.ac.uk/users/mjfssjm4/2MCD/default.htm