Question | Answer |
What are cells? | living structural and functional units enclosed by a membrane |
what are the 3 main parts to a cell? | 1. Plasma Membrane, 2. Cytoplasm, 3. Nucleus |
What is cell division? | Where one cell divides into two identical cells |
Anything ending in "OMA" means | Tumor of |
The phases of Mitosis are: | Prophase, Metaphase, Anaphase, Telophase |
"Verrucae"is: | A wart. If it's on the foot, it is called "Plantaris". If it's on the hand, it is called "Palmaris". |
Mitochondria is what? | Power house of the cell. |
tRNA (Transfer RNA) | Binds to an amino acid and holds it in place on a ribosome until it is incorporated into a protein during translation. One end of the tRNA carries a specific amino acid, and the opposite end consists of a triplet of nucleotides called an anticodon. |
rRNA (Ribosomal RNA) | Joins with ribosomal proteins to make ribosomes |
mRNA (Messenger RNA) | Directs the synthesis of a protein |
Organelles | Specialized structures with the cell that have characteristic shapes; they perform specific functions in cellular growth, maintenance, and reproduction. |
Mitosis | The distribution of two sets of chromosomes into two separate nuclei. The process results in the exact partitioning of genetic information. |
Carsinoma | Malignant tumors that arise from epithelial cells. |
Translation | The nucleotide sequence in an mRNA molecule specifies the amino acid sequence of a protein. Ribosomes in the cytoplasm carry out translation. |
Transcription | Copy information into a complementary sequence of codons. |
Endocytosis | The cell will invaginate and take in what is trying to get in |
Exocytosis | A substance trying to get out of a cell |
Transcytosis | When something travel across the cell |
Ligand | to tie |
Phagocyte | White blood cell |
Red blood cell | No nucleus |
Kinase | Phosphorylation |
Amphipathic | molecules that have both polar and non-polar parts |
Genes | Hereditary units that control most aspects of cellular structure and function |
plasma membrane | A flexible yet sturdy barrier that surrounds and contains the cytoplasm of a cell. |
Lipid bilayer | two back-to-back layers made up of three types of lipid molecules: phospholipids, cholesterol, and glycolipids. |
Phospholipids | Contain phosphorus and take up 75% of the membrane lipids |
Cholesterol | a steroid with an attached -OH (hydroxyl) group |
Glycolipids | lipids with attached carbohydrate groups |
Integral proteins | Extend into or through the lipid bilayer among the fatty acid tails and are firmly embedded in it |
Transmembrane proteins | Span the entire lipid bilayer and protrude into both the cytosol and Extracellular fluid |
Peripheral proteins | They are not firmly embedded into the membrane. they associate more loosely with the polar heads of membrane lipids. |
Glycoproteins | Proteins with carbohydrate groups attached to the ends that protrude into the extracellular fluid. |
Osteoma | cancer of a bone |
Apotosis | dropping of something |
Telomeres | tips of chromosomes |
Gliaoma | Cancer of the brain |
Astrocytoma's | Tumor of the brain |
Geneome | total number of genes in your body (approx. 30K) |
Proteome | Total number of proteins in your body (approx. 1 million) |
codon | 3 (triplets) |
Osmosis | A type of diffusion in which there is net movement of a solvent through a selectively permeable membrane |
Lysosome functions | Fuses with and digests contents of endosomes, pinocytic vesicles, and phagosomes. Transports final products of digestion into cytosol; digests worn-out organelles, entire cells, and extracellular materials. |
Golgi Apparatus (complex) | Consists of 3-20 flattened membranous sacs called cisternae; structurally and functionally divided into entry face, medial cisternae, and exit face |
Pharmacology | science that deals with the effects and uses of drugs in the treatment of disease |
Osteogenic Sarcoma | The most frequent type of childhood cancer, destroys the bone tissue |
Metastasis | The spread of cancerous cells to other parts of the body |
Mutations | Permanent changes in the DNA base sequence of a gene |
Oncology | The study of tumors |
Autolysis | responsible for tissue deterioration after death |
Mythymine | AUG. Always the first one in Amino Acids |
Ligand | A specific molecule that binds to a receptor |
Electrochemical gradient | The combined influence of the concentration gradient and the electrical gradient on movement of a particular ion |
Histones | eight yellow protein balls together. help organize the coiling and folding of DNA |
A, B, C, D | Asymetrical, Border irregulary, coloration, diatmeter |
Apotosis | an orderly, genetically programmed death |
Telomeres | DNA sequence found only at the tips of each chromosome |
Nucleosome | Made up of DNA |
Nuclei | Made up of DNA, RNA, and proteins |
Werner Syndrome | A rare, inherited disease that causes a rapid acceleration of aging, usually while a person is in their 20's. Symptoms are wrinkling of the skin, graying of the hair and baldness, cataracts, and muscular atrophy. Most afflicted people die before 50. |
Progeria | A disease characterized by normal development in the first year of life followed by rapid aging. It is cause by a genetic defect in which telomers are considerably shorter than normal. Symptoms include dry/wrinkled skin, baldness. dies around age 13. |
Tumor Markers | A substance introduced into circulation by tumor cells that indicates the presence of a tumor, as well as the specific type. |
Metaplasia | The transformation of one type of cell into another |
Hypertrophy | Increase in the size of cells without cell division |
Hyperplasia | Increase in the number of cells of a tissue due to an increase in the frequency of cell division |
Dysplasia | Alteration in the size, shape, and organization of cells due to chronic irritation or inflammation; may progress to neoplasia or revert to normal if the irritation is removed |
Atrophy | A decrease in the size of cells, with a subsequent decrease in the size of the affected tissue or organ; wasting away. |
Anaplasia | The loss of tissue differentation and function that is characteristic of most malignancies. |
Epidemiology | The science that deals with why, when, and where diseases occur and how they are transmitted in a human community |
Oncogenes | when inappropriately activated, it has the ability to transform a normal cell into a cancerous cell. |
Carcinogen | A chemical agent or radiation that produces cancer |
Osteoma | Cancer of a bone |
Benign Tumor | A neoplasm that does not metastasize |
Lymphoma | A malignant disease of lymphatic tissue |
Leukemia | Cancer of blood-forming organs characterized by rapid growth of abnormal leukocytes (white blood cells) |
Sarcoma | A general term for any cancer arising from muscle cells or connective tissue |
Melanomas | Cancerous growths of melanocytes, skin epithelial cells that produce the pigment melanin. |
Membrane potential | when a difference in electrical charges between two regions constitutes an electrical gradient, occurring across the plasma membrane. |