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EXAM 1
HUMAN A&P
132
Biology
Undergraduate 2
09/10/2012

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Term
ACID
Definition
Molecule that is a proton donor; any substance that relases hydrogen ions (H+)
Term
ACTIVE TRANSPORT
Definition
Carrier-mediated process that requires ATP and can move substances against a concentration gradient
Term
ADIPOSE
Definition
Fat
Term
AMINO ACID
Definition
Class of organic acids that constitute the building blocks for protein
Term
anabolism
Definition
All of the synthesis reactions that occur within the body; requires energy
Term
anatomy
Definition
terms to describe body positions, body regions, specific body areas, and landmarks
Term
anterior
Definition
the front of the body (Ventral) face chest or abdomen
Term
apocrine
Definition
secretions retained in cell, released when portions of the cell are sloughed off
Term
base
Definition
Molecule that is a proton acceptor; any substance that binds to hydrogen ions.Lower part or bottom of a structure
Term
basement membrane
Definition
Specialized extracellular material located at the base of epithelial cells and separating them from the underlying connective tissues
Term
Carbohydrates
Definition
Monosaccharide (simple sugar) or the organic molecules composed of monosaccharides bound together by chemical bonds
Term
cardiac muscle
Definition
related to heart
Term
catabolism
Definition
All of the decomposition reactions that occur in the body; releases energy
Term
chromosome
Definition
Colored body in the nucleus, composed of DNA and proteins and containing the primary genetic information of the cell; 23 pairs in humans
Term
collagen
Definition
Rope-like protein of the extracellular matrix
Term
columnar
Definition
shaped like a column
Term
covalent bond
Definition
chemical bond characterized by the sharing of electrons
Term
cuboidal
Definition
resembling a cube
Term
cytology
Definition
study of anatomy, physiology, pathology, and chemistry of the cell
Term
cytoplasm
Definition
protoplasm of the cell surrounding the nucleus
Term
deoxyribose
Definition
what makes DNA different from RNA
Term
Deoxyribonucleic acid
Definition
DNA type of nucleic acid found principally in the nuclei of cells; constitutes the genetic material of cells
Term
Desmosome
Definition
point of adhesion between cells. each contains a dense plate at the point of adhesion and a cementing extracellular material between the cells
Term
diffusion
Definition
tendency for solute molecules to move from an area of high concentration in solution; the product of the constant random motion of all atoms,molecules, or ions in a solution
Term
disaccharides
Definition
condensation product of two monosaccharides by the elimination of water
Term
distal
Definition
farther from the middle of the body, or farther from an attached end
Term
dorsal
Definition
(posterior) on or toward the back
Term
electron
Definition
negatively charged subatomic particle in an atom
Term
element
Definition
substance composed of atoms of only one kind
Term
endocrine
Definition
ductless gland that secretes a hormone internally, usually into the circulation
Term
endocytosis
Definition
bulk uptake of material through the cell membrane
Term
endoplasmic reticulum
Definition
double-walled membranous network inside the cytoplasm; rough has ribosomes attached to the surface; smooth does not have ribosomes attached
Term
enzyme
Definition
protein that acts as a catalyst
Term
exocrine gland
Definition
gland that secretes to a surface or outward through a duct
Term
exocytosis
Definition
elimination of material from a cell through the formation of vacuoles
Term
extracellular fluid
Definition
outside the cell
Term
facilitated diffusion
Definition
PASSIVE diffusion of solute across a membrane, with help of transport proteins
Term
fibroblasts
Definition
spindle-shaped or stellate cells that form connective tissue
Term
flagella
Definition
whiplike locomotory organelle of constant structural arrangement consisting of double peripheral microtubules and two single central microtubules
Term
gap junctions
Definition
small channel between cells that allows the passage of ions and small molecules between cells
Term
gland
Definition
secretory organ from which secretions may be released into  the blood, into a cavity, or onto a surface
Term
golgi apparatus
Definition
Named for camillo golgi, Italian histologist and Nobel laureate. specialized endoplasmic reticulum that concentrates and packages materials for secretion from the cells
Term
histiology
Definition
study of tissues
Term
apical surface
Definition

exposed

Term
attachment protein
Definition
bind the plasma membrane to the network of protein filaments within the cytoplasm called the cytoskeleton
Term
cells
Definition
bind the plasma membrane to the network of protein filaments within the cytoplasm called the cytoskeleton
Term
centrioles
Definition
a cylindrically-shaped cell structure found in most eukaryotic cells, though it is absent in higher plants and most fungi
Term
Cilia
Definition
A tiny hairlike projection on the surface of some cells ; moves secretion or fluids across surface of a cell
Term
concentration gradient
Definition
a gradual change in the concentration of solutes in a solution as a function of distance through a solution.
Term
Cytoskeleton
Definition

The lattice or internal framework of a cell composed of protein filaments and microtubules in the cytoplasm, and has a role in controlling cell shape, maintaining intracellular organization, and in cell movement.

 

Term
cytosol
Definition
The liquid component of the cytoplasm surrounding the organelles and other insoluble cytoplasmic structures in an intact cell where a wide variety of cell processes take place.
Term
decomposition reaction
Definition

(chemistry) separation of a substance into two or more substances that may differ from each other and from the original substance.

Term
dense connective tissue
Definition
A type of connective tissue that contains collagen fibers, and functions by providing strong connection between different tissues.
Term
development
Definition
The act of developing or disclosing that which is unknown; a gradual unfolding process by which anything is developed, as a plan or method
Term
differentiation
Definition
(developmental biology) The normal process by which a less specialized cell develops or matures to become more distinct in form and function.
Term
effector
Definition
responds to stimulus
Term
Elastic
Definition
capable of recovering size and shape after deformation
Term
epithelial tissue
Definition
covers the whole surface of the body. It is made up of cells closely packed and ranged in one or more layers
Term
ground substance
Definition
non-cellular components of extracellular matrix which contain the fibers
Term
growth
Definition
differentiation (specialized cells) form/function
Term
holocrine gland
Definition
secretions accumulate in cell released when cell ruptures and dies (whole cell is lose)
Term
homeostasis
Definition
state of equilibrium in the body with respect to functions and composition of fluids and tissues
Term
hydrophilic
Definition
denoting the property of attracting or associating with water molecules, possessed by polar molecules and ions
Term
hydrophobic
Definition
lacking an attraction to water; possessed by non-polar molecules
Term
hypertonic
Definition
solution that causes cells to shrink
Term
hypotonic
Definition
solution that causes cells to swell
Term
inferior
Definition
toward the feet of below
Term
control center
Definition
analyzes input and determines response
Term
positive feedback
Definition
responses generate stimulus, exaggerate original stimulus
Term
negative feedback
Definition
response dresses or reduces the stimulus
Term
organ 
Definition
one or more tissues functioning together
Term
organism
Definition
any living thing
Term
metabolism
Definition

all chemical reactions

 

Term
receptor
Definition
sensor that monitors the environment, detects stimulus
Term
proximal
Definition
closer to the point of attachment to the body
Term
superior
Definition
toward the head, higher
Term
posteror
Definition
the back of the body
Term
medial
Definition
nearer the midline
Term
supine
Definition
a position of the body: lying down with the face up
Term
prone
Definition
which is face down, sometimes with the hands behind the head or neck
Term
tissue
Definition
group of similar cells and the materials surrounding them
Term
physiology
Definition
study of the function of the body's machinery
Term
matter
Definition
anything that occupies space and has mass
Term
protons
Definition
(+)
Term
neutron
Definition
NEUTRAL
Term
ionic bond
Definition
transfer of electrons
Term
nonpolar covalent bond
Definition
equal sharing of electrons
Term
polar covalent bond
Definition
unequal sharing of electrons
Term
synthesis
Definition
(antobolic) reaction building
Term
pH
Definition
a. measure of the concentration of H+ in a solution b. scale is logarithmic c. pH of 7 is neutral
Term
monosaccharides
Definition
simple sugars ex. glucose
Term
polysaccharides
Definition
 complex carbohydrates
Term
lipids
Definition
structural components of cells (fuel)
Term
lateral
Definition
nearer the midline
Term
neutral fats
Definition
triglycerides, nonpolar molecule (dont interact with water very weill
Term
phospholipid
Definition
hydrophilic heads and hydrophobic tails, one fatty acid tails is replaced by a phosphate group
Term
steriod
Definition
 molecules that have the same basic structure, composed of 4 interlocking rings
Term
protein
Definition
 catalyst: speed up reaction; structural: make up part of the cell; carriers: move things from point A to point B; movement: proteins interact and cause tissues to move; identifiers: self cell, healthy cell
Term
nucleic acids
Definition
polymers of nucleotides; functions provide information for making proteins
Term
ribonucleic acid
Definition
RNA ribose sugar
Term
plasma membrane
Definition
cell membrane, LEMMA
Term
nucleus
Definition
control center of the cell (contains DNA) determines the type of protein produced by the cell
Term
nuclear pore
Definition
passage ways into and out of the nucleus
Term
nucleolus
Definition
dark stained area inside the nucleus, composed primarily of RNA and proteins
Term
nucleoplasm
Definition
material inside the nuclear envelope
Term
ribosome
Definition
composed of proteins and RNA; workbench of protein synthesis; types of ribosomes: free vs attached
Term
lysosome
Definition
vesicle filled with digestive enzymes
Term
peroxisome
Definition
vesicle filled with enzymes that detoxify
Term
mitochondria
Definition
power house of the cell; site of ATP production; double membrane with two internal compartments: intermembrane space and matrix
Term
microvilli
Definition
short extensions of cell; increase surface area for absorption
Term
integral proteins
Definition
parts of the plasma membranes
Term
peripheral proteins
Definition
are attached to the inner or outer surface of the plasma membrane
Term
selectively permeable
Definition
permits the free passage of some substances and restricts the passage of others
Term
osmosis
Definition
diffusion of water (water follows salt)
Term
isotonic
Definition
same solute concentration
Term
phagocytosis
Definition
"cell eating"endocytosis of solid particles
Term
pinocytosis
Definition
"cell drinking" endocytosis of fluid droplets
Term
organelles
Definition
cytoskeleton, nucleus, ribosome, endoplasmic reticulum, golgi apparatus,lysosome, peroxisome, mitochondrion, centriole, cilia, flagellum, microvilli
Term
simple
Definition
single layer of cells; found in areas of absorption
Term
stratified
Definition
more than one layer of cells
Term
pseudostratified
Definition
all cells attached to basement membrane but not all cells extend to apical surface (false ONE LAYER)
Term
squamous
Definition
thin, irregular shaped (exchange)
Term
tight junctions
Definition
block water and solutes; complex arrangements of proteins connecting it to its neighbors (like welding)
Term
merocrine
Definition
secretions are packed in vesicles and leave via exocytosis ex. sweat glands
Term
ventral
Definition
the front of the body
Term
transport protein
Definition
serves the function of moving other materials within an organism
Term
matrix
Definition
material (or tissue) between animal or plant cells
Term
mast
Definition
tissue cell of the immune system of vertebrate animals
Term
microphage
Definition
a neutrophil that ingests small things (as bacteria)
Term
organ system
Definition
work together as one unit
Term
peptic bond
Definition
promoting digestion
Term
melanocyte
Definition
are melanin-producing cells located in the bottom layer 
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