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55 Cards in this Set

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Cell Theory
The cell theory states that all living things come from cells and that cells come from other cells
Cytoplasm
Semifluid solution surrounded by the plasma membrane. The interior of both prokaryotic & eukaryotic cells.
Plasma Membrane
Is a phospholipid bilayer with embedded protiens. It is the outer cell surface that regulates the entrance and exit of molecules.
Organelle
Small membranous bodies each with a specific structure and function.
Only present in eukaryotic cells.
Fimbriae
airlike bristles that allow adhesion to surfaces
Cell Theory
The cell theory states that all living things come from cells and that cells come from other cells
Cytoplasm
Semifluid solution surrounded by the plasma membrane. The interior of both prokaryotic & eukaryotic cells.
Plasma Membrane
Is a phospholipid bilayer with embedded protiens. It is the outer cell surface that regulates the entrance and exit of molecules.
Cell Theory
The cell theory states that all livibg things come from cells and that cells come from other cells
Organelle
Small membranous bodies each with a specific structure and function.
Only present in eukaryotic cells.
Cytoplasm
Semifluid solution surrounded by the plasma membrane. The interior of both prokaryotic & eukaryotic cells.
Plasma Membrane
Is a phospholipid bilayer with embedded protiens. It is the outer cell surface that regulates the entrance and exit of molecules.
Fimbriae
hairlike bristles that allow adhesion to surfaces
Organelle
Small membranous bodies each with a specific structure and function.
Only present in eukaryotic cells.
Fimbriae
hairlike bristles that allow adhesion to surfaces
Sex Pilus
Elongated hollow appendage used to transfer dna to other cells.
Flagellum
Rotating fillament that propels the cell
Capsule
Gel like coating outside the cell wall
Sex Pilus
Elongated hollow appendage used to transfer dna to other cells.
Nuecloid
Location of the bacterial chromosone
Flagellum
Rotating fillament that propels the cell
Ribosome
composed of protien and RNA in two subunits. It is the site of protien synthesis.
Capsule
Gel like coating outside the cell wall
Sex Pilus
Elongated hollow appendage used to transfer dna to other cells.
Nuecloid
Location of the bacterial chromosone
Flagellum
Rotating fillament that propels the cell
Ribosome
composed of protien and RNA in two subunits. It is the site of protien synthesis.
Capsule
Gel like coating outside the cell wall
Nuecloid
Location of the bacterial chromosone
Ribosome
composed of protien and RNA in two subunits. It is the site of protien synthesis.
Cell well
The cell wall is composed of cellulose fibrils. The function is to provide support and protection
Nuclues
The nucleus is enclosed in the nucleur envelope; contains chromatin (threads of DNA and protien) and nucleus( produces ribosomes). Its function is to store genetic information synthesis of DNA & RNA
Nuecleolus
Concentrated area of chromatin, RNA, and protiens. Function: Produces subunits of ribosomes.
Endoplasmic Reticulum (ER)
Membranous flattened channels and tubular canals
function is synthesis and/or modification of protiens and other substances; transport by vesicle formation.
Rough ER
Studded with ribosomes. Function is protien synthesis
Smooth ER
Lacks ribsomes. Function is synthesis of lipids.
Golgi Apparatus
Stack of membranous saccules. Function; processes packages, and distributes protiens and lipids.
Vacuole and Vesicle
Membrane-bounded sac for storage of substances
Lysosme
Vesicle containing hydrolic enzymes. Digest macromolecules and cell parts
Perixisome
Vesicle containing specific enzymes; Breaks down fatty acids and converts resulting hydrogen peroxide to water; varios other functions.
Mitochondrin
Membranous thylakoids bounded by an outer membrane; carries out cellular resperation, producing ATP molecules.
Chloroplast
Membranous cristae bounded by two membranes; carries out photosynthesis, producing sugars.
Only found in plant cells
Cytoskeleton
Microtubles, intermediate filaments, actin fillaments.
Maintains cell shape and assist movement of cell parts.
Cilia and flagella
Function is movement of cell.
Centrioles
Unknown function.
Only in animal cell
Diffusion
Is the movement of molecules from a higher to a lower concentration until equilibrium is achieved and the molecules are distributed equally.
Tonicity
is the relative concentration of solute(particles), and also a solvent(water), outside the cell compared with inside the cell.
Isotinic solution
has the same concentration of soluteas the cell. Animal cells prefer. Plant cells become flaccid.
Hypertonic solution
Has a higher solute(lower water) concentration than the cell. Both animal and plants cells shrivel.
Hypotonic solution
Has a lower solute(higher water) concentration than the cell. Animal cells- Lysed (burst) and plant cells become turgid (normal).
Turgor pressure
When plant cells are placed in a hypotonic solution, the large centrole vacule gains water and exerts pressure.
Plastmosis
When plant cells are placed in a hypertonic solution solution, the centrole vacuole loses water and the cytoplasm, including chloroplast, pulls away from the cell wall.
PH Scale
We use the PH Scale to describe how acidic or basic a solution is. PH stands for potential of hydrogen.
Range from 0 (acidic) to 14 (basic).
Buffer
Substances that minimize the changes in PH.
A system of chemicals that takes us excess hydroger or hydroxide ions, as appropriate.
Chapter
2