17984087
Description
Flashcards by Savannah Reynolds, updated more than 1 year ago
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Created by Savannah Reynolds
almost 5 years ago
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| Question | Answer |
| Homeostasis | The tendency toward a relatively stable equilibrium. |
| Cell Discovery | In 1665, Robert Hooke, a monk, was the first to observe cells. Discovered plant cells - cork tree Coined "cells" because they looked like cells of a monastery |
| Cell Theory | All living organisms are composed of cells. They may be unicellular or multicellular The cell is the basic unit of life. Cells arise from pre-existing cells. |
| Cell Types | Prokaryotic and Eukaryotic |
| Prokaryotic | Archaebacteria and Eubacteria No Nucleus No membrane bound organelles Less complex Uni cellular DNA - single stranded circular |
| Eukaryotic | Plant, animals, fungi, protist Nucleus Membrane bound organelles More complex Can be uni or multi cellular DNA - double stranded, linear |
| Nucleus | Eukaryotic Control Center Contains genetic material Located in center of the cell |
| Nucleolus | Eukaryotic Assembles ribosomes Located in the nucleus |
| Nuclear Membrane/Envelope | Eukaryotic Lipid Bilayer Allows material in and out of the nucleus Located between nucleus and cytoplasm |
| Nucleoid | Prokaryotic Region that contains genetic information located in the center of prokaryotic |
| Centriole | Animal Create spindle fibers that assist in cell division Located in pairs near the nucleus |
| Cytoplasm | Eukaryotic and Prokaryotic Jelly like fluid supports internal structures maintains shapes and consistancy located in the space between the cell membrane and nucleus/nucleoid |
| Mitochondria | Eukaryotic Powerhouse where respiration occurs and energy is produced Located in large numbers throughout the cytoplasm |
| Chloroplasts | Plants Where photosynthesis occurs Responsible for capturing sunlight and converting it into chemical energy Located throughout the cytoplasm of plant cells |
| Ribosomes | Eukaryotic and Prokaryotic Syhthesize proteins Located in extremely large numbers throughout cytoplasm and on rough endoplasmic reticulum |
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Rough Endoplasmic Reticulum
Image:
Er (binary/octet-stream)
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Eukaryotic Contain ribosomes Synthesize proteins for secretion Located in cytoplasm close to nucleus and golgi body |
| Smooth Endoplasmic Reticulum | Eukaryotic Production and metabolism of steroids and hormones Aids in detoxification Located near rough endoplasmic reticulum |
| Golgi Body | Eukaryotic Receives proteins from rough endoplasmic reticulum Packages and sorts proteins Located near rough endoplasmic reticulum |
| Lysosome | Eukaryotic Contains enzymes responsible for breaking down waste Located throughout cytoplasm |
| Vacuole | Eukaryotic Storage and waste disposal Structural support in plants Much larger in plant cells |
| Cell Membrane | Eukaryotic and Prokaryotic Barrier between inside cell and outside Controls what enters and exits cell Located around the outside |
| Cell Wall | Plant cell and Prokaryotic Structural Support Protection and Barrier Located outside the cell membrane |
| Capsule | Prokaryotic Protection Located on the outside of prokaryotic cells |
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Flagellum
Image:
Ecoli (binary/octet-stream)
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Animal cells and prokaryotic Whip like appendage Provides movement Located on outside of cell |
| Cilia | Animal and prokaryotic Microscopic hair like structures Move substances past surface of cell Located on outside of cell |
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