Bio Lab Exam 1
44 flashcards
- Benedict's reagent
- detects presence of reducing sugar (remove oxygen or add hydrogen) blue because of copper ions colorful precipitate forms in presence of reducing sugars - scales green to brick red
- iodine reagent
- distinguishes starch from carbohydrates and becomes bluish black color from yellowish brown
- Biuret reagent
- detects presence of peptide bonds, going from blue-green to violet
- Glycosidic bonds
- bonds between monosaccharides
- Peptide Bonds
- Bonds between amino acids
- Saturated fatty acids
- have the maximum number of hydrogen atoms possible and no double bonds
- Unsaturated Fatty Acids
- Fatty acids with one or more double bonds.
- hydrophilic
- water loving
- Hydrophobic
- Water fearing
- oxidation-reduction
- Also known as redox; a chemical reaction in which the oxidizing agent is reduced (by losing oxygen) and the reducing agent is oxidized (by gaining oxygen).
- goldfish breaths
- decrease in cold water
- hypothesis
- -testable -falsifiable -replicable
- solute
- A substance that is dissolved in a solution.
- Solution
- A mixture that forms when one substance dissolves another.
- Solvent
- A liquid substance capable of dissolving other substances
- pH
- power of hydrogen, logarithmic
- proteins
- most complex and numerous molecules in living organisms
- Phenolpthalien
- Colourless in acid, pink in alkali
- Cell Theory
- idea that all living things are composed of cells, cells are the basic units of structure and function in living things, and new cells are produced from existing cells
- Prokaryotic Cells
- do not have a nucleus or other membrane-bound organelles
- Eukaryotic cells
- Contain a nucleus and other organelles that are bound by membranes.
- tissues
- Groups of cells with a common structure and function.
- Volvox
- Oscillatoria
- prokaryotic cyanobacteria
- Anabaena
- prokaryotic cyanobacteria, visible nucleus
- Amoeba proteus
- a single-celled protist that constantly changes its body shape
- Stentor
- protist
- Paramecium
- protist
- Euglena
- protist
- Allium
- onion
- Pinus
- conifer
- Cheek epithelial
- cheek
- Areoler connective tissue
- tissue
- multipolar neuron
- many dendrites
- Cyanobacteria
- Bacteria that can carry out photosynthesis
- Archaebacteria
- Ancient bacteria living in extreme environments.
- Eubacteria
- true bacteria
- collenchyma cells
- provide flexible and mechanical support; found in stems and leaves
- Epidermal cells
- outer layer of cells that cover the plant body
- Receptor Theory
- receptor protein undergoes 3D shape change when a chemical is bound to it
- Vasodilation
- widening of blood vessels, lazy river
- Vasoconstriction
- narrowing of blood vessels, jet stream
- epinephrine
- adrenaline & primarily a vasoconstrictor but can also dilate
- Phenylephrine
- vasoconstrictor used primarily as a nasal decongestant