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bio

chapter 4

QuestionAnswer
cell
cell theory
Cells are alive because they
larger cell
small cell
Prokaryotic Cells Small, simple, Lack a membrane-bound organelles such as a nucleus
Eukaryotic Cells Large, complex, membrane bound organelles such as a nucleus, reproduce sexually and asexually
Prokaryotic - B Cause diseases but are also environmentally important as decomposers.
Prokaryotic - A
The Structure of Prokaryotes
Cell envelope
Plasma membrane
Cell wall
Glycocalyx
phospholipid bilayer
embedded proteins
Cytoplasm
Nucleoid
Plasmids
Ribosomes
Flagella
Fimbriae
Conjugation pili
Spherical coccus
Rod-shaped bacillus
Spiral spirillum
spirochete
Compartmentalized with specialized organelles
Plasma membrane (like prokaryotes) is composed of a phospholipid bilayer with embedded proteins.
Endomembrane system. Organelles that communicate with one another.
Energy-related organelles. Mitochondria and chloroplasts.
vesicles move around using the cytoskeletal network which are protein fibers like railroad tracks.
Plant cells, fungi, and many protists have
Separated from cytoplasm nuclear envelope
Nuclear pores
Contains DNA in a relaxed/loose structure chromatin
The loose chromatin condenses/compacts to form chromosomes
Chromosomes are carriers of genetic information that is subdivided into genes
Dark region of chromatin nucleolus is where rRNA is produced.
Ribosomes not an organelle but an important structure
Endoplasmic Reticulum A system of membrane channels and saccules (flattened vesicles) continuous with the outer membrane of the nuclear envelope
Rough ER Studded with ribosomes on cytoplasmic side.
Smooth ER Smooth ER
Created by: Stanasia
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