EXAM 1 review Flashcards
micro
small
macro
large
Hyper
More
Hypo
less
iso
same
poly
many
hemo
blood
lysis/lysos
breakdown
cyto
cell
pseudo
false
endo
inside
exo
outside
ase
enzyme
ose
sugar
what is the study of life
biology
types of organic molecules
carbohydrates, lipids, proteins, and nucleic acids
a proposed testable explanation of observations
hypothesis
atomic number
the number of protons in the nucleus of an atom
atomic weight
the number of protons plus the number of neutrons
valance shells
outermost shell of an atom
inert gases (noble gases)
Six elements that make up the last group in the periodic table of elements ( do not combine with other elements)
ion
an atom or group of atoms that has positive or negative charge
isomers
same molecular formula but different structures
Isotopes
atoms with the same atomic number but different mass numbers
Solute
A substance that is dissolved in a solution.
Solvent
the substance in which the solute dissolves
Tonicity
the ability of a solution to cause a cell to gain or lose water
Eukaryote
A cell that contains a nucleus and membrane bound organelles
Prokaryote
unicellular organism that lacks a nucleus
Nucleus (cell)
the central part of the cell where DNA is stored
nucleus (atom)
The center of an atom that contains the protons and neutrons
Mitochondrion
Cell organelle that converts the chemical energy stored in food into compounds that are more convenient for the cell to use
plasma membrane
A selectively-permeable phospholipid bilayer forming the boundary of the cells
cell wall
strong, supporting layer around the cell membrane in some cells
Golgi Complex/Apparatus
a cell organelle that helps make and package materials to be transported out of the cell
Ribosomes
Makes proteins
Endoplasmic Reticulum
A cell structure that forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another.
Lysosomes
An organelle containing digestive enzymes
Chloroplast
organelle found in cells of plants and some other organisms that captures the energy from sunlight and converts it into chemical energy
Enzymes
Proteins that speed up chemical reactions
active site
a region on an enzyme that binds to a protein or other substance during a reaction.