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