BIO Lab Practical
Order by
37 terms
Terms | Definitions |
|---|---|
 acid | substance that increases the concentration of H+ ions |
| base | substance that decreases the concentration of H+ ions (increases OH- ions) |
| buffer | a substance that resists change in pH |
| monosaccharide | monomer of carbohydrates |
| nucleotide | monomer of nucleic acids |
| glycogen | storage carbohydrate found in animals |
| amino acid | monomer of proteins |
| phospholipid | glycerol + fatty acids + phosphate group |
| steroid | four ring lipid |
| benedict's test | tests for monosaccharides (changes blue to red) |
| iodine test for starch | tests for complex carbohydrates (organge to black) |
| biuret test | identifies materials with at least four peptide bonds (lavender shade) |
| sudan III solubility test | tests for lipids (mix = lipids b/c nonpolar) |
| dische diphenylamine test | test for deoxyribose (turns blue) |
| isotonic | equilibrium |
| hypertonic | higher concentration of solutes outside of cell |
| hypotonic | lower concentration of solutes outside of cell |
| brownian movement | random motion causes net movement of molecules from an area where they are in higher concentration to an area where they are in lower concentration |
| plasmolysis | cell shrinks due to hypertonic solution |
| nucleus | control center, contains genetic information |
| nucleolus | synthesis of rRNA and ribosomes |
| nuclear pore | small molecules diffuse |
| chromatin | regulate gene expression |
| rough ER | transports proteins synthesized by ribosomes |
| smooth ER | synthesizes lipids, carbs, and steroid hormones |
| ribosome | protein synthesis |
| golgi apparatus | packages protein for export from the cell |
| secretory vesicles | stores and transports materials |
| lysosome | digest worn-out organelles and cell debris; digest material taken up by endocytosis |
| glyoxysome | microbody with enzymes that convert fats into carbohydrates |
| peroxisome | microbody that contains enzymes that catalyze the removal of electrons and associated H atoms |
| mitochondria | power plants of the cell |
| chloroplast | photosynthesis site |
| cell wall | protection; support |
| central vacuole | stores proteins, pigments, and waste materials. Regulates water balance. |
| centriole | divides and organizes spindle fibers during mitosis and meiosis |
| cytoskeleton | structural support, cell movement, movement of vesicles within cell |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.