Study guide part 2 (Vocab) Flashcards
is a very large molecule consisting of repeated linked units
macromolecules
the building blocks of a polymer
monomers
storage of glucose in plants; storage of glucose in animals
starch; glucose
monomer is amino acids
proteins
monomer is a nucleotide
Nucleic acids
Monomer is composed of a glycerol and 3 fatty acids
lipids
monomer is a monosaccharide
carbohydrate
Function is stored energy; insulation; Examples: phospholipids, and cholesterol.
lipids
Function is quick energy; Examples: glucose, ribose, sucrose, and cellulose.
carbohydrates
Function is protection, movement, catalyst; Examples: lactase.
Proteins
Function is pass on inheritable traits; Examples: DNA, RNA
amino acids
Are cells that contain a true nucleus
eukaryotic
Are cells that do not contain a nucleus
prokaryotic
List three reasons viruses are considered non-living
not made of cells; no cell membrane; doesn’t move.
List the two parts of a virus.
Nucleic acids, and capsid.
control center of a eukaryotic cell
nucleus
fluid surrounding the organelles in all cells (cell gel)
cytoplasm
sites where proteins are assmebled
ribosomes
Produces ATP energy from the chemical fuel of glusose
glycolysis
Site of photosynthesis; converts energy from the sun to glucose
chloroplasts
Boundary found in all cells; determines what can enter and leave
cell membrane
The cell membrane allows certain substances to pass in and out because it is
semipermeable
a type of transport across the membrane that requires no energy
passive
a type of transport across the membrane that requires energy
active
what would happen if a freshwater fish is placed in saltwater
hypertonic
the main component of the cell membrane
lipids
name the two parts of a lipid
glycerol and fatty acids
random movement molecules; w/ gradient
simple diffusion; passive transport
large molecules move in and out of the cell with the help of proteins
facilitated diffusion; passive transport
movement of water through a selectively permeable membrane
osmosis; active transport
transport in which a cell expels substances
exocytosis; active transport
transport where substances are brought into the cell by c. m. folding in
endocytosis; active transport
concentration of solutes is the same inside and outside the cell
Isotonic
solutions have a lower solute concentration than the cell; cell may lysis
hypotonic
solute has a higher solute concentration than the cell; cell may crenate
hypertonic
protein that does not span the membrane; used for cell communication
peripheral protein
proteins that span the membrane; used for cell transport
transmembrane protein
found only in animal cell membranes; provide more stability
cholesterol
part of the cell membrane that serves as ID tags for the cell
carbohydrates
hydrophilic; polar
phosphate head
hydrophobic; nonpolar
lipid tail
biomolecule that serves as a catalyst in living things
enzyme protein
the substance that binds to an enzyme
substrate
the region where the enzyme and the substrate bind together
active site
list three things that can denature an enzyme
pH, temperature, and amount of substrate
enzymes work by lowering the (blank) required to start a chemical reaction
activation energy
list the components of ATP
adenine, ribose, 3 phosphates
the molecule that provides useable energy to the cell
ATP
the energy stored in the molecule above is stored in the
bonds
equation for photosynthesis
6CO2 + 6H2O + light -> C6H12O6 +6CO2
light-absorbing molecules are called
pigments
the 1st step of photosynthesis is called the
light dependant reaction
this reaction takes place in the (blank) of the (blank)
thylakoids; chloroplast
List the two main reactants and the waste product produced in this 1st step.
ATP; NADPH; O2
The 2nd step of photosynthesis is called
Calvin cycle/light-independent reaction
The reaction takes place in the (blank) of the chloroplast
stroma
List the main reactant and the product produced in the 2nd step
CO2; C6H12O6
equation for cellular respiration
C6H12O6 + 6O2 -> 6H2O + 6CO2 + ATP
Name the energy pathway that is aerobic
cellular respiration
name the energy pathway that is anaerobic
fermentation
the 1st step in the breakdown of glucose
glycolysis
the process of glycolysis takes place in the
cytoplasm
list the end products of glycolysis
ATP; NADPH; Pyruvate
the next step in the breakdown of glucose is
krebs cycle
This process takes place in the (blank) of mitochondria
matrix
the waste product from this reaction is
CO2
what is made in this cycle that is transported to the electron transport chain
NADH; FADH
what is the last step in the breakdown of glucose
electron transport chain
this process takes place in the (blank) of the mitochondria
inner membrane
what has to be present at the end, what does it form
oxygen; water
which step of cellular respiration are the most ATP’s made
electron transport chain
what is the range of total ATPs made in cellular respiration
34-38 ATP
name the two types of fermentation
alcoholic, and lactic acid
name the type that occurs in human muscle cells (and bacteria, etc.)
lactic acid
what are the two phases of cell division
Interphase; mitotic division
during which part of thus interphase does the cell’s DNA make a copy of itself
S phase
the division of the cytoplasm that occurs at the end of mitosis
cytokinesis
asexual cell division in eukaryotes; division in the nucleus
mitosis
cells are limited in size due to the following 3 reasons
nutrients need to move in and out; wastes need to get in and out; DNA can only do so much for the cell
the process by which bacteria reproduce asexually
binary fission
sister chromatids are pulled apart; the spindle fibers shorten
anaphase
chromosomes are on opposite ends of the cell; spindles begin to break apart; nuclear env. reforms
telophase
Shortest phase in which chromosomes line up across the center of the cell
metaphase
Chromosomes become tick and visible, nucleolus disappear, nuclear env. breaks down
prophase
G1, S, and G2 are all phases of
Interphase
Threads that pull chromatids apart
spindle fibers
the organelle that contains genetic material/DNA
Nucleus
formed during DNA replication
DNA
uncondensed, spaghetti-like structure within the nucleus containing the genetic information
chromatin
monomers of DNA
nucleotides
list the three parts of nucleotides
phosphate; deoxyribose, base
the scientist did Xray diffraction of DNA
Rosalind Franklin
Scientists discovered the shape of the DNA molecule
James Watson and Francis Crick
The scientist that found the same proportions of adenine and thymine, cytosine, and guanine in a DNA molecule
Chargaff
Write the complementary DNA strand TATGCCGAA
ATACGGCTT
the process where DNA is copied
replication
the type of bond that holds DNA nucleotides together
hydrogen bonds
the enzyme used to break the bonds to unzip the DNA
helicase
strand of DNA that is continuously replicated
leading strand
strand of DNA that is replicated in fragments
lagging strand
these fragments get glued together by the enzyme
ligase
Add DNA nucleotides and proofreads the replicated DNA
DNA polymerase
Two exact copies of DNA are made
DNA replication
is single-stranded
RNA
is double-stranded
DNA
contains thymine
DNA
contains uracil
RNA
contains deoxyribose
DNA
contains ribose
RNA
leaves nucleus
RNA
stays in the nucleus
DNA
the process where part of the nucleotide sequence in DNA is copied into RNA
transcription
a tRNA carrying an amino acid binds to the A site
translation
takes place in the nucleus
transcription
adds RNA nucleotides
RNA polymerase
What are the 8 functions of proteins
speed up reactions; immune system; storage; transport; hormones; receptors; movement; structure
a change in shape leads to a change in
function