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TEAS 6 Science
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Terms in this set (102)
a standard position in which the body is facing forward, the feet are parallel to each other, and the arms are at the sides with the palms facing forward
divides the body vertically into front and back (anterior and posterior) sections.
divides the patients body into imaginary upper (superior) and lower(inferior/caudal ) halves
divides body into right and left sections.
nearer the midline.
ex. little finger is medial to thumb
further form midline.
ex. thumb is lateral to little finger
structures closer to the body.
ex. hip is proximal to the knee
structures further away from the center of the body.
ex. knee is distal to the hip
structures in front
adverb meaning towards the head.
adverb meaning towards the tail or posterior
above or closer to the head
below, or closer to the feet.
small structure that contains chromosomes, and regulates DNA.
defining structure of Eukaryotes.
passes on genetic traits
highly condensed, thread like rods of DNA
dna and protein that make up chromosomes
continued within nucleus,
made of protein
doesn't have membrane
involved in protein synthesis, and synthesizes and store RNA
enclose structures of nucleus.
consists of inner and outer membranes made of lipids
exchange of material between nucleus and cytoplasm
liquid within the nucleus, similar to cytoplasm
semi permeable membrane,
made of lipids and proteins
isolates cell from outer environment but allows cell to still communicate.
phospholipid bilayer made up of hydrophilic ends facing out
cholesterol-stiff/flex, glycoproteins-recognition, proteins-shape
synthesize proteins from amino acids
25% of cell
some are mobile and some are fixed (E.R)
manufacturing and packaging plant
synthesizes materials such as proteins, that are transported out of cell
sacs used for storage, digestion, and waste removal
small organelle within a cell that stores and transports substances through out the cell
made of microtubules that help support cells. shape
part of cytoskeleton, made of protein. support
liquid material in cell.
mostly water but also contains floating molecules
general term that refers to cytosol and the substructures found within the plasma membrane, but not the nucleus
tubular network that comprises the transport system of a cell.
fused to nuclear membrane and extends through cytoplasm to the cell membrane
production of ATP
cell cycle and growth regulation
contains own dna that is separate from nucleus
inner membrane mitochondria
encloses matrix (contains dna and ribosomes)
Infoldings of the inner membrane of a mitochondrion that houses the electon transport chain and the enzyme catalyzing the synthesis of ATP.
pair of centrioles located at right angles to each other and surrounded by protein .
involved in mitosis
cylinder shaped structures near the nucleus that are involved in cellular division.
each cylinder had 9 groups of 3 microtubules.
centrioles occur in pairs
digests proteins, lipids, carbs, and transports undigested substances to cell membrane so they can be removed,
shape depends on the material being transmitted.
appendages extending from the surface of the cell, the movement of which causes the cell to move,
tail like that uses whiplike movements to help the cell moe
hierarchy of organisms
atoms< simple molecules< macromolecules< membranes< organelles < cells< tissues< organs <organ systems <most complex animal
"Compound containing carbon, hydrogen, and oxygen in the approximate ratio of C:2H:O (e.g., sugars, starches, and cellulose)"
Main energy source
Broken down by glycolysis
composed of chains of amino acids
A group of organic compounds composed mostly of carbon and hydrogen including a proportionately smaller amount of oxygen; are insoluble in water, serve as a source of stored energy, and are a component of cell membranes.
made up of nucleotides
building blocks of DNA and RNA
difference between dna genes, chromosomes and
Genes contain DNA (deoxyribonucleic acid). DNA is the chemical basis of heredity. Think of it this way: DNA is in genes, genes are on chromosomes.
A complex molecule containing the genetic information that makes up the chromosomes.
A threadlike, gene-carrying structure found in the nucleus. Each chromosome consists of one very long DNA molecule and associated proteins.
base pairing for nucleotides dna
adenine & guanine= purines-2 carbon nitrogen ring base
thymine & cytosine=pyrimidines-one carbon nitrogen ring
base pairing RNA
A segment of DNA on a chromosome that codes for a specific trait
An organism's genetic makeup, or allele combinations.
An organism's physical appearance, or visible traits.
Alternative forms of a gene for each variation of a trait of an organism.
A cross between individuals that involves one pair of contrasting traits
Cross or mating between organisms involving two pairs of contrasting traits
Situation in which both alleles of a gene contribute to the phenotype of the organism
A pattern of inheritance in which two alleles, inherited from the parents, are neither dominant nor recessive. The resulting offspring have a phenotype that is a blending of the parental traits.
Occurs when multiple genes determine the phenotype of a trait
Three or more alleles of the same gene
# of protons in an atom
# of protons and neutrons in an atom
how to find number of neutrons
atomic mass - atomic # (protons)
# of electrons
electrons are equal to protons
atoms that share electrons
non-polar bond- electrons shared equally
polar- electrons shared unequally
when an atom gains or loses electrons, it becomes negatively or positively charged.
relationship between two oppositely charged ions.
when an atom loses one or more electrons
when an atom gains one or more electrons
V- assumes volume and shape of container
Molecular motion- very free motion
V-volume remains constant but it assumes shape of container
MM-move past each other freely
V-definite shape and volume
MM-vibrates around fixed position
liquid -gaseous form at a temp below its boiling point
opposite of evaporation and vaporization
solid - liquid
balancing chemical equations
the number of atoms of each element on the reactant side must equal the number of atoms of each element of the product side
includes date that might help clarify the text for the reader but would have disrupted main flow in main text.
ex: references, tables, reports, background research and sources.
words arranged alphabetically and their definitions
normally found in nonfiction
to help find info about specific topics
tells corresponding pages that have the info you are looking for
table of contents
beginning of book
lists different subjects or chapter titles with page #
emphasize important, words, phrases and sentences
when being discussed AS a word, defined or described. lan or large books, mags
communicates meaning, emphasizes, importance. key terms
text listed at the bottom of page which lists where facts and figures with in the document page were obtained
listed at end of paragraph and chapters instead of bottom of each document
figure, symbol shows meaning
order from earliest---> latest (date, time)
fixed order or pattern
how blood flows through heart
body-inferior/superior vena cava-right atrium-right ventricle-pulmonary artery-lungs-pulmonary vein- left atrium-left ventricle-aorta-body
A reaction in which two or more substances combine to form a new compound. A + B --> C
A reaction in which a single compound breaks down to form two or more simpler substances. AB --> A + B
single replacement reaction
double displacement reaction
a chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light
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