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Bio 120 Exam 1
N/A
48
Biology
Undergraduate 1
02/14/2012

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Term
ionic bond
Definition
chemical bond forms when ions of opposite charge attract
Term
covalent bond
Definition
chemical bond when atoms share outer shell electrons
Term
polar
Definition
electrons are shared unequally creating slight negative and positive charges
Term
non-polar
Definition
electrons shared equally
Term
amphipathic
Definition
molecule that is polar and non polar
Term
neutrons
Definition
spacers in nucleus of an atom and determine stability
Term
radioactivity
Definition
neutrons dont = protons
Term
how does an atom become charged
Definition
gains or loses electrons
Term
simple sugar
Definition
monomer of carb
Term
fatty acid
Definition
monomer of lipid
Term
hydrophobic
Definition
water fearing
Term
hydrophilic
Definition
water loving
Term
saturated fat
Definition
found in animals and type of lipid
Term
unsaturated fat
Definition
found in fish also lipid
Term
trans fat
Definition
lipid made by hydrogenation
Term
why are phospholipids good for building cell membranes
Definition
good barrier not likely to change, hard to pass through
Term
denature a protein
Definition
change in ph, temp, uv radiation
Term
dna double helix strands run _____
Definition
anti- parallel
Term
polymer of lipid
Definition
phospholipids, triglycerides, steroids
Term
functions of carbs
Definition
cell to cell comm, quick energy
Term
viruses are ______
Definition
non-living
Term
ribosome
Definition
structure for protein synthesis
Term
rough er
Definition
er covered in ribosoms
Term
smooth er
Definition
er responsible for lipid synthesis
Term
golgi
Definition
modifies and sorts proteins and lipids
Term
lysosome
Definition
digestive enzymes break down macromolecules
Term
Isotonic
Definition
same water is exchanged
Term
hypotonic
Definition
water enters a cell
Term
hypertonic
Definition
water leave a cell
Term
photosynthesis
Definition
energy from sun with co2 and water make sugar and oxygen
Term
dna replication
Definition
making a copy before cell divides
Term
transcription
Definition
making copy of dna in form of rna
Term
translation
Definition
amino acids are linked together
Term
before rna can leave nucleus
Definition
introns cut out, exons put together, and cap and tail
Term
codon
Definition
3 bases on rna that code for amino acids
Term
diploid
Definition
2 copies of each chromosome, 2n
Term
haploid
Definition
1 copie of each chromosome, 1n
Term
apoptosis
Definition
programmed cell death
Term
sister chromotids
Definition
23 sets all in same location
Term
gap 2_
cytokinesis_
dna sythesis_
mitosis_
gap 1_
Definition
3
5
2
4
1
Term
cell that use mitosis
Definition
all body cells
Term
cell that use meiosis
Definition
sex cells
Term
loss of control in cell cycle
Definition
cancer
Term
trait controlled by more than one gene
Definition
polygenic
Term
affects more than one trait
Definition
polytrophic
Term
codominance
Definition
both alleles shown in phenotype
Term
incomplete dominance
Definition
combination of two
Term
epistasis
Definition
two genes, one masks other
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