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34 Cards in this Set

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neuron
nerve cell
dendrites
nerve cell end that is antenna to incoming messages
neuron nerve cell description
dendrite-cell body-down axon-axon branches (chemical outside and electrical inside)
neurostransmitters
chemicals that act as messengers that transmit the signal across the gap between neurons that fill hte synapse
reflex arc
response from sensory detectors to spinal cord then through neurons back to starting point
Prokaryotic
one or more compartments
Eukaryotic
?
diffusion
?
concentration gradient
diffusion from high concentrated area to low
hypothalamus
regulates physiological process of water, body temp, sleep
endocrine system
produces glands that produce and release chemical messages
pituitary gland
endocrine gland in brain that releases vasopressin (told to by the hypothalamus)that is reponse to dehydration
fermentation
alternate process for muscle shift without O2 that creates lactic acid which can cause muscle fatigue
ionic bonds
chemical bond occurs b/n loss or gain of electrons where ions change
covalent bond
sharing of electrons bond
gametes
reproductive cells
zygote
the product of the fusion of zygotes
gonads
male gamete producing organ
vulva
all external female reproductive organs
epididymus
long coile tubes that sperm is stored in
seminal vesicle
connects the ejaclatory duct and the urethra
prostate gland
produces fluid that is added to semen
cowpers gland
produces fluid to protect semen
FSH
Follicle Stimulating Hormone (hypothalamus tells pituitary to produce)
MALES: stimulates testes to produce sperm
LH
Luteinizing hormone
MALE: stimulates the major release of sex hormones
Independent assortment
?
meiosis
cell division that produces gametes in sexual reproducion
nondisjunction
when offspring cell gets neither chromosome results in error
imcomplete dominance
??
nucleotides
small molecules on DNA double helix strands (ATCG)
nucleotides
small molecules on DNA double helix strands (ATCG)
Nucleic Acids
long strand on nucleotides bonds together (DNA is an example of nucleix acid)
trascription
genetic code of mRNA into an amino acid sequence
ribosome
cell organelle constructed in nucleus consisting of 2 subunits and functioning as site or photosynthesis

made up of rRNA and protein that travel along mRNA to read codons and get proteins