Cell Theory
Scientist coined the term "cell" by looking at cork cells underneath a microscope
Hooke
see things in 3D, only magnifies 10X , 30X, at most 60X
stereoscope
type of bonding where electrons are shared
covalent bond
what is the atomic number
the # of protons
PROTEIN that acts as biological catalyst, speeding up chemical reactions by lowering activation energy
enzyme
discovered that cells came from preexisting cells
Virchow
microscope using objective lens in combination with ocular lens (eyepiece); view objects in 2D and color
Compound light microscope
when electrons are transferred from one atom to another (NaCl); forms ions
ionic
what is the mass number
# of protons + # of neutrons inside the nucleus
enzyme that breaks down hydrogen peroxide into water and oxygen
catalase
scientist that discovered all animals are made up of cells
Schwann
can see detailed internal structure of specimens in 2D at great magnifications using beam of electrons
TEM
peptide bond is
type of covalent bond between amino acids
What is an isotope ?
has the same atomic # (same # of protons) but a different atomic mass due to a different number of neutrons
enzyme that pumps hydrogen ions across a membrane and results in: ADP + Pi🡪 ATP
ATP synthase
scientists that discovered all plants are made up of cells
Schleiden
can see surface features of specimens in 3D using beam of electrons
SEM
weak bond between atoms or molecules (between water molecules
hydrogen bonds
What are the most common elements in living things
CHNOPS
What is dehydration synthesis?
a reaction in which small molecules (monomers) join to form a large molecule (polymer), removing water in the process.
EX: Glucose + fructose = sucrose
Name the three parts of the cell theory
All living things are made up of cells, cells are the basic unit of structure and function, all cells come from preexisting cells
What are the limitations of light microscopes? Limitations of electron microscopes?
Light - resolution (can see detail to a certain magnification but then resolution gets lost)
Electron - dead specimen because specimen must be imaged in a vacuum.
Identify the parts of an atom, their mass and charge.
Protons - (+), atomic mass of 1
Neutrons - (no charge) atomic mass of 1
electrons - (-) very light
How can you determine whether something is organic or inorganic?
Organic must have Carbon and Hydrogen
What is Hydrolysis
catabolic reaction that splits apart polymers into monomers by the addition of water.