Cell structure and fucntion pt 1(vocab)

Centrioles

Found near the nucleus of animal cells and helps organize cell division

Chromatin

Granular material in the nucleus that consists of DNA, produces RNA

Consumers

Organisms that eat other organisms or organic matter for energy

Cytology

Study of cells

Cytoskeleton

Network of protein filaments that helps the cell to maintain its shape, is involved with movement

Endosymbiosis theory

An idea that the mitochondria and chloroplasts may have evolved from independent microorganisms

Eukaryotes

Cells that contain a nucleus in which their genetic material is separated form the rest of the cell

Microfilaments

Threadlike structures of protein(actin)

Microtubules

Hallow structures of protein(tubulin)

Organelles

“Little organs” specialized structure that performs important functions within the eukaryotic cell

Producers

Organisms that create their own food

Prokaryotes

Cells that have their genetic material that is not contained in a nucleus

Radiant energy

Energy form electromagnetic waves that travel to cells

Robert Hooke

Looked at a thin slice of cork and saw a bunch of small empty chambers called cells

Anton von Leeuwenhoek

Saw tiny living organisms called “animalcules”, observe pond water

Matthias Schleiden

Concluded planet are composed of cells

Theodor Schwann

Concluded animals are composed of cells

Rudolf Virchow

Saw cells divide in half

Lynn Margulis

Proposed the idea that certain organelles were once free-living cells