Biology Lab

Front 1

Cell Theory

Back 1

The cell theory states that all living things come from cells and that cells come from other cells

Front 2

Cytoplasm

Back 2

Semifluid solution surrounded by the plasma membrane. The interior of both prokaryotic & eukaryotic cells.

Front 3

Plasma Membrane

Back 3

Is a phospholipid bilayer with embedded protiens. It is the outer cell surface that regulates the entrance and exit of molecules.

Front 4

Organelle

Back 4

Small membranous bodies each with a specific structure and function.
Only present in eukaryotic cells.

Front 5

Fimbriae

Back 5

airlike bristles that allow adhesion to surfaces

Front 6

Cell Theory

Back 6

The cell theory states that all living things come from cells and that cells come from other cells

Front 7

Cytoplasm

Back 7

Semifluid solution surrounded by the plasma membrane. The interior of both prokaryotic & eukaryotic cells.

Front 8

Plasma Membrane

Back 8

Is a phospholipid bilayer with embedded protiens. It is the outer cell surface that regulates the entrance and exit of molecules.

Front 9

Cell Theory

Back 9

The cell theory states that all livibg things come from cells and that cells come from other cells

Front 10

Organelle

Back 10

Small membranous bodies each with a specific structure and function.
Only present in eukaryotic cells.

Front 11

Cytoplasm

Back 11

Semifluid solution surrounded by the plasma membrane. The interior of both prokaryotic & eukaryotic cells.

Front 12

Plasma Membrane

Back 12

Is a phospholipid bilayer with embedded protiens. It is the outer cell surface that regulates the entrance and exit of molecules.

Front 13

Fimbriae

Back 13

hairlike bristles that allow adhesion to surfaces

Front 14

Organelle

Back 14

Small membranous bodies each with a specific structure and function.
Only present in eukaryotic cells.

Front 15

Fimbriae

Back 15

hairlike bristles that allow adhesion to surfaces

Front 16

Sex Pilus

Back 16

Elongated hollow appendage used to transfer dna to other cells.

Front 17

Flagellum

Back 17

Rotating fillament that propels the cell

Front 18

Capsule

Back 18

Gel like coating outside the cell wall

Front 19

Sex Pilus

Back 19

Elongated hollow appendage used to transfer dna to other cells.

Front 20

Nuecloid

Back 20

Location of the bacterial chromosone

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Flagellum

Back 21

Rotating fillament that propels the cell

Front 22

Ribosome

Back 22

composed of protien and RNA in two subunits. It is the site of protien synthesis.

Front 23

Capsule

Back 23

Gel like coating outside the cell wall

Front 24

Sex Pilus

Back 24

Elongated hollow appendage used to transfer dna to other cells.

Front 25

Nuecloid

Back 25

Location of the bacterial chromosone

Front 26

Flagellum

Back 26

Rotating fillament that propels the cell

Front 27

Ribosome

Back 27

composed of protien and RNA in two subunits. It is the site of protien synthesis.

Front 28

Capsule

Back 28

Gel like coating outside the cell wall

Front 29

Nuecloid

Back 29

Location of the bacterial chromosone

Front 30

Ribosome

Back 30

composed of protien and RNA in two subunits. It is the site of protien synthesis.

Front 31

Cell well

Back 31

The cell wall is composed of cellulose fibrils. The function is to provide support and protection

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Nuclues

Back 32

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

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Nuecleolus

Back 33

Concentrated area of chromatin, RNA, and protiens. Function: Produces subunits of ribosomes.

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Endoplasmic Reticulum (ER)

Back 34

Membranous flattened channels and tubular canals
function is synthesis and/or modification of protiens and other substances; transport by vesicle formation.

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Rough ER

Back 35

Studded with ribosomes. Function is protien synthesis

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Smooth ER

Back 36

Lacks ribsomes. Function is synthesis of lipids.

Front 37

Golgi Apparatus

Back 37

Stack of membranous saccules. Function; processes packages, and distributes protiens and lipids.

Front 38

Vacuole and Vesicle

Back 38

Membrane-bounded sac for storage of substances

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Lysosme

Back 39

Vesicle containing hydrolic enzymes. Digest macromolecules and cell parts

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Perixisome

Back 40

Vesicle containing specific enzymes; Breaks down fatty acids and converts resulting hydrogen peroxide to water; varios other functions.

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Mitochondrin

Back 41

Membranous thylakoids bounded by an outer membrane; carries out cellular resperation, producing ATP molecules.

Front 42

Chloroplast

Back 42

Membranous cristae bounded by two membranes; carries out photosynthesis, producing sugars.
Only found in plant cells

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Cytoskeleton

Back 43

Microtubles, intermediate filaments, actin fillaments.
Maintains cell shape and assist movement of cell parts.

Front 44

Cilia and flagella

Back 44

Function is movement of cell.

Front 45

Centrioles

Back 45

Unknown function.
Only in animal cell

Front 46

Diffusion

Back 46

Is the movement of molecules from a higher to a lower concentration until equilibrium is achieved and the molecules are distributed equally.

Front 47

Tonicity

Back 47

is the relative concentration of solute(particles), and also a solvent(water), outside the cell compared with inside the cell.

Front 48

Isotinic solution

Back 48

has the same concentration of soluteas the cell. Animal cells prefer. Plant cells become flaccid.

Front 49

Hypertonic solution

Back 49

Has a higher solute(lower water) concentration than the cell. Both animal and plants cells shrivel.

Front 50

Hypotonic solution

Back 50

Has a lower solute(higher water) concentration than the cell. Animal cells- Lysed (burst) and plant cells become turgid (normal).

Front 51

Turgor pressure

Back 51

When plant cells are placed in a hypotonic solution, the large centrole vacule gains water and exerts pressure.

Front 52

Plastmosis

Back 52

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.

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PH Scale

Back 53

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).

Front 54

Buffer

Back 54

Substances that minimize the changes in PH.
A system of chemicals that takes us excess hydroger or hydroxide ions, as appropriate.

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Chapter

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