semester test Flashcards
what is the monomers of nucleic acid
nucleotide
what are complex structures made of monomers
polymers
what are the macromolecules used for quick energy
carbs
what are the macromolecules that are composed of fatty acids
lipids
what are the macromolecules that are composed of fatty acids
lipids
what are the abundant macromolecule of a cell
protein
an example of sugars and starches is ?
carbs
what is the macromolecules used for muscle contraction are ?
proteins
a chain of multiple polymers are called
monomers
what macromolecules are used during dna replication?
nucleic acid
1-sciences advances what?
2-technology advances what?
1 knowledge
2 society
the goal of technology in the science world is?
use science to solve problems and answer questions
problem identifcation clearly defines what?
the problem
determing if you solved a problem/ met all cpnstrains is a form of ?
evaliation
what are the common requirments within a solution design stages
time and materials
what do scientific investigators identify
a problem
what does scientific investigation and technology design and analyze
results
what does technological design and evaluates process or products to answer if it met what
the criteria
what results are supported or rejected
scientific investigation
what paraticle moves around the nucleus of an atom
electrons
the atomic number of a carbon atom is 6. so how many nuetrons does the isotope carbon-12 have
6
what do the three isotopes of carbon have thats the same number of chemica properties but dont have the same ?
atomic mass
what is a chemical compound that consists of 2 or more —— combined in a definite proportion
elements
vander wall forces are the result of what what —— sharing electrons
unequal
what happens when a covalant bond forms electric bonds are —– between atoms
shared
when isotopes are created by a change in the number of ———- in atoms
nuetrons
atoms are made up of ?
protons/nuetrons.electrons
what are the 2 main types of bonds?
covalent and ionic
elements or that are produced by a chemical reactions are known as what?
products
what dp chemical reactopms always involve a charge in ?
energy
what is the energy that is needed to get a reaction started is called what?
activation energy
all enzymes are what?
catalyst
after a reaction the enzymes are what——- and ready to accecpt molecules
unchanged
what speeds up a reactions that take place in cells
enzymes
what happens if reacrions dont have enough energy they will be what —— after the collusion
unchanged
enzymes that affect the reactions are called?
reactants
what is a substance that acclerates the rate of chemical reactions callled
catlyst
enzymes affect the reaction of living cells by changing —— of a reaction
speed
electron microscopes are caple of revealing more details than light microscopes because wavelengths are ——- than light
shorter
who was the first person who used dthe term cell
robert hooke
one way that prokaryotes differ from eukaryotes is that theu do not have a membrane aroind its what?
dna gentic material
what is bacteria an example of ?
prokaryotes
