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| branch of biology concerned with the microscopic study of the structure of tissues |
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| branch of biology dealing with the formation and development of embryos |
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| carry out many functions vital to life such as absorption, assimilation, respiration, irritability, conductivity, growth, reproduction, and excretion |
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| function of intercellular substances |
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| provide cell with nutrition and take up waste products |
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| contains the genetic information in the cell |
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| carries the genetic information from the DNA to the cytoplasm |
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| nucleus is bound by the ________ |
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| opening in the nuclear envelope |
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| smooth endoplasmic reticulum |
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| rough endoplasmic reticulum |
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| has ribosomes on surface where protien production is initiated |
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| particles that translate genetic codes for protiens |
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| function is to sort, condense, package, and deliver proteins from the ER |
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| contain acid hydrolase and enzymes to break down substances |
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| major source of ATP, and a major site for metabolic reactions |
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| 3D system of support for the cell made up of microfilaments, microtubules, and intermediate filaments |
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| they are important in mitosis as force generating elements |
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| walls are composed of sets of microtubules, important in mitosis |
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| envelops the cell and is a selective barrier |
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| 1. chromatin thread thickens to become chromosomes 2. each chromosome splits in half, known as chromatids 3. each chromatin pair is attached to a centromere 4. each centriole pair duplicates and migrates to opposite poles 5. the nuclear membrane disappears |
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| 1. chromatids with the centromeres, line up on the equatorial plate 2. mitotic spindle forms 3. centrioles are at the opposite ends and attach themselves by the spindle |
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| centromeres divide and move the completed identical sets of chromatids to opposite poles |
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| 1. nucleus reappears 2. chromosomes elongate 3. cleavage furrow deepens until separation occurs |
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| mechanical attachments between cells or surfaces |
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| attachment plaque is located near the intercellular space |
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| junction between two cells |
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| attachment of a cell to an adjacent noncellular surface |
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| three periods of prenatal development |
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| 1. preimplantation 2. embryonic 3. fetal |
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| fertilized egg in uterine tube |
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| morula increases in size to form a ____ |
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| where blastocyst is implanted |
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| where the two cavities on either side of cell mass contact |
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| yolk sac is lined with ______ |
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| amniotic cavity is lined with ______ |
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| epidermis is derived from ______ |
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| dermis is derived from _________ |
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| the _________ gives rise to the neural plate |
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| 1. epithelium 2. connective tissue 3. muscle 4. nervous |
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