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Cellular structure.
Pg. 69-82
78
Biology
9th Grade
11/17/2015

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Term


Cytology

Definition
The study of cells.
Term
Cell
Definition
the smallest structural and functional unit of an organism.
Term
Protoplasm
Definition
All the living substances within a cell.
Term
Cell Theory
Definition
cell theory is a scientific theory which describes the properties of cells.
Term
Unicellular Organism.
Definition
An organism that consists of only one cell.
Term
Multicellular Organism
Definition
Multicellular organisms are organisms that consist of more than one cell. 
Term
Colonial Organism
Definition
colonial organism is an organism composed of multiple constituent organisms. that is a collection of similar cells that except for a few have a special reproductive cell.
Term
Tissue
Definition
A group of similar cells that work together to carry out a specific function.
Term
Organs
Definition
Composed of several types of tissues working together to perform a specific function.
Term
Organ System
Definition

an organ system is a group of organs that work together to perform one or more functions. 

 

Term
Cell Junction
Definition
cell junction (or intercellular bridge) is a type of structure that exists within the tissue of some multicellular organisms, such as animals but not plants.
Term
Plasmodesmata
Definition
Tiny passage ways that connect cytoplasm in plant cells.
Term
Eukaryotic
Definition
Cells that have a membrane bound nucleus and other specialized structures.
Term
Organelle
Definition
A cytoplasmic stucture that performs special functions in the cell.
Term
Prokaryotic
Definition
A group of cells that lack a membrane around the nucleus and contains only non-membrane bound organelles.
Term
Plasma Membrane
Definition
A microscopic membrane of lipids and proteins that forms the external boundary of the cytoplasm of a cell or encloses a vacuole, and that regulates the passage of molecules in and out of the cytoplasm.
Term
Fluid Mosaic Model
Definition
A model describing cellular membranes as being composed of a lipid bilayer with proteins scattered throughout the membrane.
Term
Cell Wall
Definition
Is the rigid or nearly rigid structure that is located on the outside of the plasma membrane.
Term
Capsule/Sheath
Definition
Protect the organsim because the material must first either dissolve the capsule or pass through before entering the organism.
Term
Cytoplasmic Matrix
Definition
The cytoplasmic matrix is defined as substances within this membrane, excluding the genetic material. In most prokaryotes, it appears to be relatively featureless by electron microscope, but that simply means that there are no large structures in the matrix.
Term
Mitochondria
Definition
The powerhouse of the cell. [where energy is produced.]
Term
 Cristae
Definition
A crista is a fold in the inner membrane of a mitochondrion. The name is from the Latin for crest or plume, and it gives the inner membrane its characteristic wrinkled shape, providing a large amount of surface area for chemical reactions to occur on.
Term
Ribosome
Definition
Is a non-membrane-bound organelle found in both prokaryotic and eukaryotic.
Term
Endoplasmic Reticulum
Definition
A system of interconnected folded membranes inside the cell.
Term
Lysosomes
Definition
are small ireegulary shaped membrane-bound organelles filled with digestive enzymes
Term
Golgi apparatus
Definition
A flattened curved membrane-covered sacs.
Term
Lysosomes
Definition
small irregularly shaped membrane-bound organelles filled with digestive enzymes.
Term
Cytoskeleton
Definition
Gives the cell its shape.
Term
Flagellum
Definition
a long tubular extension of the plasma membrane surrounding a special arrangement of microtubes
Term
Cilia
Definition
Provides locomotion for the cell
Term
Basal Body 
Definition
Function to control and coordinate movement of the cilia and flagella.
Term
Centrioles
Definition
An organelle composed of microtubules and located near the nucleus.
Term
Microtubles
Definition
hollow spiral assembly of protein molecules.
Term
intermediate filaments
Definition
cytoskeletal components found in the cells of many animal species. They are composed of a family of related proteins sharing common structural and sequence features.
Term
Microfilaments
Definition
the thinnest filaments of the cytoskeleton, a structure found in the cytoplasm of eukaryotic cells.
Term
Plastids
Definition
Plastids are the site of manufacture and storage of important chemical compounds used by the cell.
Term
Chloroplast
Definition
organelles found in plant cells and eukaryotic algae that conduct photosynthesis.
Term
Thylakoids
Definition
 membrane-bound compartment inside chloroplasts and cyanobacteria.
Term
grana
Definition
contain the green pigment chlorophyll
Term
Vaculoes
Definition
re storage bubbles found in cells. They are found in both animal and plant cells but are much larger in plant cells.
Term
Vesicles
Definition
are membrane bound organelles.
Term
nucleus
Definition
the control cenrer of the cell
Term
tugor pressure
Definition
the pressure of water which keeps a plant upright.
Term
nuclear envelope
Definition
a double membrane that completely surorunds the nucleus.
Term
nuclear pores
Definition
permits the passage of material between the cytoplasm and the proteins.
Term
chromatin material
Definition
all of hereditary information of the cell.
Term
chromatin material
Definition
all of hereditary information of the cell.
Term
nucleolus
Definition
the nuclear subdomain that assembles ribosomal subunits in eukaryotic cells. 
Term
Cytology
Definition

the study of cells

 

Term
Robert hooke
Definition
observed the first cork cells
Term
protoplasm
Definition
the entire substance of cells
Term
three principles of the cell theory are
Definition

the cell is the basic unit of all living things.

cell perform all funcitons of all living things

cells come from the reproduction of exsisting cells.

Term
ten cellular functions
Definition

digestion,reproduction,irritability,excretion,absorption

,movement,homostasism,secretion,egestion,synthesis.

Term
what determines a organisms size
Definition
the amount of cells it has
Term
single celled organisms are called
Definition
unicellular
Term
organisms made up of multiple cells are called
Definition
multicellular
Term
tissue
Definition
similar cells that work together for a specific function.
Term
organs
Definition
tissues grouped together to perform certain functions
Term
organ system
Definition
groups of organs working together.
Term
three basic parts of a cell
Definition
cytoplasam,nucleus,boundary
Term
the difference of prokaryotic and eucaryotic
Definition

eucaryotic cells have a membrane bound organelle.

prokaryotic cells have a non membrane bound orgaelle.

Term
the boundary of a cell
Definition
where the cell membrane, or plasma membrane.
Term
organelles
Definition
where are the interal membranes found.
Term
proteins and lipids
Definition
the two main componets of cellular membranes
Term
plant cells
Definition

 

have cell walls

Term
ribosomes
Definition
makes proteins
Term
endoplasmic reticulum
Definition
a channel for movement of substances
Term
mitochondria
Definition
the power house of the cell
Term
lysosomes
Definition
digestive enzymes..
Term
vacuole
Definition
provides storage for the cell
Term
flagella
Definition
a whip like tale that provides motion
Term
cillia
Definition
tiny hairs that provide motion
Term
nucleus
Definition
the brain of the cell
Term
optimal range
Definition
the range of which a cell functions best
Term
range of tolerance
Definition
the range that which a cell is not dead but not comfortable
Term
active transport
Definition
the moving of molecules across membranes
Term
passive transport
Definition
requires no energy from the cell
Term
3 examples of homostasis
Definition
sweating when your hot. shivering when you are cold. and your body regulating your blood sugar.
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