Biochemistry Flashcards
Compounds
Composed of two or more different elements bounded together chemically
H+
Hydronium Ion
OH-
Hydroxide Ion
Low pH
More H+
High pH
More OH-
Neutralization Reaction
HCL (acid) + NaOH (base) –> NaCl (salt) + H2O (water)
Buffer
A solution that can resist an keep pH constant
Litmus Paper
acid = red
base = blue
neutral = stay the same
pH Paper
Shows exact pH
Phenolphthalein
Tests for bases only, turns bright pink
Bromothymol Blue
Tests for acids, turns yellow
Detect the presence of CO2; pH decreases, CO2 increases
Benedict’s (Fehling’s) Solution
Detect the presence of simple sugars (glucose),
blue = none
green = a little
orange red = average amount
brick red = a lot
Iodine (Lugol’s) Solution
Detect the presence of starch,
yellow/tan = none
blue black = contains starch
Organic compounds
Carbohydrates, Lipids, Proteins, Nucleic Acids
Inorganic compounds
Water, Salts, Acids and Bases
Carbohydrate: Elements
CHO
Carbohydrate: Ratio of CHO
1:2:1
Carbohydrate: Function
Short term energy
Carbohydrate: Building Block
Monosaccharides
Lipids: Elements
CHO