Valencia's BSC1010 Lab Manual Flashcards
E2
What is the order of measurement prefix’s ?
Nano Micro Mili Centi Deci Standard unit Decka Hecto Kilo
E3
A _______ cannot be broken down into a simpler substance.
An Element
E3
When an atom gains an electron, it is said it becomes ______ charged and is called a(n)?
Negatively, cation
E3
The atomic weight (or mass) of an atom is comprised of.
The number of protons and neutrons.
E3
An atom with the same number of protons but different amount of neutrons is called a?
Isotope
E3
What kind of bond is formed when oppositely charged atom(s) donate to other atom(s)?
Ionic bonds
E3
What kind of bond is formed when two atoms share electrons with one another?
Covalent bond
E3
Draw the amino acid alanine (CH3CH/NH2/COOH)
H H H
| | |
H-C- C- N
| | |
H | H
O=C-O-HE3
pH is a measurement of _____ in a solution.
Hydrogen ions
E3
______ is used to detect small carbohydrate molecules, and turns the reagent from ________ when heated, if positive.
Benedict’s solution, blue to orange or red-brown.
E3
Lugol’s iodine, when mixed with a ________ will go from blue to black.
Starch
E4
What makes up a triglyceride?
A lipid is formed from three fatty acid chains attached to a glycerol macromolecule.
E4
What defining feature separates a saturated fat from an unsaturated fat?
Unsaturated fats have at least one carbon double bonding.
E4
________ is used to detect lipids and results positive the blotter being tested, moves, and becomes _______.
Sudan IV, red
E4
________ is used to test for the presence of peptide bonds. The reagent will turn ________.
Biuret, purple.
