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177 Cards in this Set
- Front
- Back
- 3rd side (hint)
anabolism |
metabolic building up of simple compounds into more complex substnces. |
uses ATP |
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anatomic position |
standard position of the body for anatomic studies; upright face front, arms at side w/ palms forward & feet parallel |
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anatomy |
study of body structure |
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catabolism |
metabolic breakdown of substances into simper substances |
creates ATP |
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cell |
basic unit of life |
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disease |
illness; abnormal stte in which part or all of the body does not function properly |
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extracellular fluid |
fluid that is outside the cell |
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homeostasis |
state of balance w/in the body; maintenance of body conditions w/in set limits |
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intracellular fluid |
fluid within a cell |
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metabolism |
all the physical and chemical processes by which an organism is maintained |
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negative feedback |
self-regulation system in which the result of an action revereses that action; a method for keeping body conditions w/in a normal range and maintaining homeostasis |
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organ |
body part containing two or more tissues functioning together for specific purpose |
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pathology |
study of disease |
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physiology |
study of the function of living organisms |
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system |
group of organs functioning together for the same general purpose |
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tissue |
group of similar cells that perfoms a specialized function |
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dis- |
apart, away from |
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-ology |
study of |
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path/o |
disease |
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physi/o |
nature, physical |
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-tomy |
cutting, incision of |
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ana- |
upward, again, back |
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cata- |
down |
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extra- |
outside of, beyond |
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home/o |
same |
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intra- |
within |
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stat, stasis |
stand, stoppage, constancy |
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Levels of Body Organization |
chemicals, cell, tissue, organ, organ system, organism |
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What systems Protect, support and provide movement? |
Integumentary system, skeletal system, muscular system |
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integumentary system |
skin, hair, nails, sweat glands and oil glands |
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skeletal system |
bones, 206 bones and the joints between them |
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muscular system |
muscles, produces movement, structure, protects organs and maintains posture |
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What body systems provide communication and control? |
Nervous system and endocrine system |
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Nervous system |
brain, spinal cord, and nerves. Sense organs (eyes, ears, taste buds, and organs of smell) receptors for senses like pain and touch. |
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Endocrine system |
glands that produce hormones that regulate growth, nutrient utilization, and reproduciton. Ex. thyroid, pituitary, adrenal. |
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What body systems provide circulation and immunity? |
Cardiovascular system and lymphatic system |
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Cardiovascular system |
heart, blood vessels. Pumps blood throughout body carrying nutrients and oxygen to al body tissue and carries waste away |
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lymphatic system |
lymphatic vessels, returns fluid from the tissue to the blood and absorbs fats. Ex. tonsils, thymus, and spleen |
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What body systems provide energy supply and fluid balance? |
Respiratory system; digestive system; urinary system; reproductive system |
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repiratory system |
lungs and passages to and from the lungs. Gas exchange takes place here....oxygen to body and CO2 out of body |
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digestive system |
mouth, esophagus, stomach, small and large intestine, liver, gall bladder and pancreas. Takes in food, converts to energy for cells to use, absorbs into circulation |
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urinary system |
kidneys, bladder, ureters, urethra. Rids the body of waste products and excess water. |
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reproductive system |
all external and internal sex organs that produce offspring |
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acid |
substance that can release a hydrogen ion when dissolved in water |
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amino acid |
building block of protein |
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anion |
negatively charged particle (ion) |
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aqueous |
pertaining to water; an aqueous solution is one in which water is the solvent |
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atom |
smallest subunit of a chemical element |
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base |
a lower portion or foundation. Substnce that can accept a hydrogenb ion; substance that releases a hydroxide ion when dissolved in water; an alkali |
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buffer |
substance that prevents sharp changes in a solutions pH |
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carbohydrate |
simple sugar or compound made from simple sugars linked together, such as starch or glycogen |
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catalyst |
substance that speeds the rate of a chemical reaction |
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cation |
positively charged particle (ion) |
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chemistry |
study of the composition and properties of matter |
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colloid |
mixture in which suspended particles do not dissolve but remain distributed in the solvent because of their small size |
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compound |
substance composed of 2 or more chemical elements |
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denaturation |
change in structure of a protein, such as an enzyme, so that it can no longer function |
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electrolyte |
compound that separates into ions in solution; substance that conducts an electric current in solution |
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electron |
negatively charged particle in an energy level outside an atom's nucleus |
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element |
one of the substances from which all matter is made; substance that cannot be decomposed into a simpler substance |
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enzyme |
a protein that aceperates a specific chemical reaction |
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glucose |
simple sugar; main energy source for the cells; dextrose |
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glycogen |
compound built from glucose molecules that is stored for energy in the liver and muscles |
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ion |
atom or molecule w/ an electrical charge; anion or cation |
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isotope |
form of an element that has the same atomic # as another form of that element but a different atomic weight; isotopes differ in their #'s of neutrons |
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lipid |
type of organic compound, one example of which is fat |
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molecule |
particle formed by covalent bonding of two or more atoms; smallest subunit of a compound |
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nucleotide |
building block of DNA and RNA; one is also a component of ATP |
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neutron |
noncharged particle in an atom's nucleus |
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pH |
symbol indicating hydrogen ion (H+) concentration; lower #'s indicate a higher H+ concentration and higher acidity |
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protein |
organic compound made of amino acids; found as structural materials and metabolically active compounds such as enzymes, some hormones, pigments, antibodies, and others. |
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proton |
positively charged particles in an atom's nucleus |
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radioactive |
pertaining to isotopes that fall apart easily, giving off radiation |
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salt |
compound formed by reaction between an acid and base (NaCl) Sodium Chloride |
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Solute |
substance that is dissolved in another substance |
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solution |
homogeneous mixture of one substance dissolved in another; the components in a mixture are evenly distributed and cannot be distinguished from each other |
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solvent |
substance in which another substance is dissolved |
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steroid |
category of lipids that includes the hormones of the sex glands and the adrenal cortex |
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substrate |
substance on which an anzyme works |
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suspension |
heterogeneous mixture that will separate unless shaken |
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valence |
combining power of an atom; # of electrons lost, gained, or shared by atoms of an element in chemical reactions |
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co- |
together |
covalent |
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aqu/e |
water |
aqueous |
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heter/o |
different |
heterogeneous |
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hom/o |
same |
homogeneous |
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hydr/o |
water |
dehydration |
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phil |
to like |
hydrophilic |
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phobia |
fear |
hydrophobic |
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-ase |
suffix used in naming enzymes |
lipase |
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de- |
remove |
denaturation |
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di |
twice, double |
disaccharide |
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glyc/o |
sugar, glucose, sweet |
glycogen |
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mon/o |
one |
monosaccharide |
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poly |
many |
polysaccharide |
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sacchar/o |
sugar |
monosaccharide |
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tri |
three |
triglycerides |
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What is an element, give examples. |
buidlibng blocks of all matter, Over 100 on the periodic table. Smallest unit of an element is an atom. Examples are oxygen, hydrogen or helium |
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What elements are contained in table salt? |
NaCl (Sodium Chloride) Sodium and Chlorine |
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Which element makes up the greatest % of body weight? |
oxygen w/ 65% |
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Molecules VS. Compounds |
molecules are atoms that chemically bond with each other covalently Compounds are molecules w/ 2 or more different kinds of atoms. Compounds can be ionic or covalent. |
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What is an atom and its' parts? |
An atom is the smallest unit of an element. Protons (positive charge) and neutrons (neutral charge) are in the nucleus. Electrons (negative charge) are in the outer rings called valence levels |
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What does the atomic # and the atomic mass represent? |
atomic # is the # of protons in the nucleus atomic mass is the sum of the weight of protons and neutrons |
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What is a mixture and what types are there? |
A mixture is 2 or more substances not chemically bonded. Examples.....solute, solvent, soution, aqueous solution, homogeneous, suspension, colloid |
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suspension mixture |
heterogeneous, non uniform, uneven distribution |
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colloid |
heterogeneous, evenly suspended or dispersed |
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what is an ionic bond? |
transfer of electron between 2 atoms. One atom gives and the other takes |
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What is a covalent bond? |
when two or more atoms share electrons |
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what is the difference between a covalent polar bond and a covalent non polar bond? |
nonpolar- electrons are shared evenly polar-electrons are not shared evenly |
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explain the pH scale and what the numbers represent. |
pH scale measure the relative concentrations of hydrogen and hydroxide ions in a solution. (0=most acidic; 14= base; 7=neutral) body pH range = 7.35-7.45 |
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Explain what an organic compound is and give examples. |
a compound that contains molecules with carbon-hydrogen bonds and found in all living things. Examples are carbohydrates; protein; nucleic acids; lipids |
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Explain carbohydrates |
also know as a saccharide or sugar. They form as monosaccharides, disaccharides, polysaccharides. Mono is the simplest sugar like glucose or fructose, Di- has two sugars like sucrose or lactose, and finally poly has more than two sugars like starch or glycogen |
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Explain proteins |
most complex organic compound. They help with structure, enzymatic catalyst and regulation. Polymers composed of monomers call aminoacids. 4 levels of structure. |
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Explain lipids |
fats, triglycerides, phospholipids, steroids. Triglyceride is a simple fat, and 3 fatty acid tails, insultates body, protects organs, stores energy. Main component of cell membranes. Steriods contain rings of carbon atoms, and they help regulate body function. |
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nucleotides |
use ATP. Link together by covalent bonds. Adenine, guanine, cytosine, thymine |
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What are enzymes and their function? |
enzymes are proteins that help accelerate a specific chemical reaction. . Only certain enzymes can bind with specific receptors to allow certain chemical reactions to occur. |
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active transport |
movement of molecules into or out of a cell from an area where they are in lower concentration to an areaa where they are in higher concentration. Such movement, which is opposite to the direction of normal flow by diffusion, requires energy and transporters |
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cancer |
tumor that spreads to other tissues; a malignant neoplasm |
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carcinogen |
cancer-causing substance |
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chromosome |
dark-staining, thread-like body in a cell's nucleus; contain genes that determin hereditary traits |
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cytology |
study of cells |
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cytoplasm |
substance that fills the cell, consisting of a liquid cytosol and organelles |
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diffusion |
movement of solutes from a region where they are higher concentration to a region where they are in lower concentration |
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DNA |
deoxyribonucleic acid--genetic material of a cell; makes up chromosomes in the cell's nucleus |
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endocytosis |
movement of large amounts of material into a cell using vesicles (i.e. phagocytosis and pinocytosis) |
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exocytosis |
movement of large amounts of material out of the cell using vesicles. |
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filtration |
movement of material through semipermeable membrane down a pressure gradient |
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gene |
hereditary factor; portion of DNAon a chromosome encoding a specific protein |
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hemolysis |
rupture of red blood cells |
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hypertonic |
solution that is more concentrated than the fluid in the cell |
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hypotonic |
A solution that is less concentrated than the fluid in the cell |
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interphase |
stage of a cells life between one mitosis and the next when the cell is not dividing |
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isotonic |
solution that has the same concentration as the fluid in the cell |
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micrometer |
1/1000th of a millimeter; an instrument for measuring through a microscope |
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microscope |
magnifying instrument used to examine cells and other structures not visible with naked eye; examples....compound light microscope, transmission electron microscope (TEM), and scanning electron microscope (SEM) |
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mitochondria |
cellular organells that manufacture ATP |
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mitosis |
type of cell division that produces 2 daughter cells that are exact |
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mutation |
change in gene or a chromosome |
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nucleus |
largest cellular organelle, has DNA, directs all cell activities |
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organelle |
specialized subdivision within a cell |
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osmosis |
passage of water through a semipermeable membrane from the region of lower solute concentration to the region of higher solute concentration |
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phagocytosis |
engulfing of large particles through the plasma membrane |
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plasma membrane |
outer covering of a cell; regulates what enters and leaves the cell; cell membrane |
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ribosome |
small body in the cell cytoplasm that is a site of protein making |
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RNA |
ribonucleic acid--substance needed for protein making in the cell |
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cyt/o- |
cell |
cytology |
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micr/o |
small |
microscope |
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bi- |
two |
bilayer |
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chrom/o |
color |
chromosome |
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end/o |
in, within |
endoplasmic |
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lys/o |
loosening, dissolving, separating |
lysosomes eat or dissolve material |
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-some |
body |
ribosome |
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ex/o |
outside, out of, away |
exocytosis |
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hem/o |
blood |
hemolysis |
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hyper |
above, over |
hypertonic |
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hypo |
below, beneath |
hypotonic |
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iso |
same, equal |
isotonic |
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phag/o |
to eat, ingest |
phagocytosis |
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pin/o |
to drink |
pinocytosis |
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semi |
partial, half |
semipermeable |
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ana- |
upward, back, again |
anaphase |
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inter- |
between |
interphase |
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meta- |
change |
metaphase |
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pro- |
before, in front of |
prophase |
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tel/o- |
end |
telophase |
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carcin/o |
cancer, carcinoma |
carcinogen |
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-gen |
agent that produces or originates |
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What is the metric unit used in microscope measurement? |
micromillimeter (mcg) or 1/1000th of a millimeter |
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What is the permeability of the plasma membrane and how do substances move across it? |
It is a semipermeable membrane and substances move across by diffusion, osmosis, filtration and active transport. |
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What is a ligand? |
bulk material like lipoproteins that are brought into a cell through endocytosis |
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What is a double helix? |
formed by nucleotide pairings (A-T; G-C), makes up chromosomes, hereditary units that control cell activity; genes |
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Where is energy from nutrients converted into ATP? |
Mitochondria |
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Which cells must generate large amounts of ATP? |
Active cells such as muscle cells or sperm cells need lots of energy, so they contain alot of mitochondria. |
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What is an aquaporin and its function? |
Its the transmembrane channel protein that enables water movement across the plasma membrane |
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What are the types of RNA and their function? |
mRNA- messenger; transcribes DNA code in the nucleus rRNA- ribosomal; makes up ribosomes, site of protein synthesis tRNA- transfer; translates genetic code into protein with rRNA |
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What acronym is used for the stages of mitosis? |
PMAT-prophase, metaphase, anaphase and telophase prophase is where chromosomes condense metaphase is where they ine up across the center of the cell and attach to the spindle anaphase- centromeres spit and idential chromosome move to opposite centrioles telophase- pinching of membrane to for new identical cells |
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What are some risk factors for cancer? |
heredity; chemicals; radiation; diet; viruses |
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What cell populations would be considered a cancer? |
epithelial stem cells |
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