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Biology Exam 1

2nd review

QuestionAnswer
Ectoderm Skin, hair, lining of nose and mouth, nervous system
Mesoderm Muscles, skeleton, circulatory and respiratory system
Endoderm Lining of digestive and respiratory tracts, liver and pancreas
How many chromosomes do we have? 46, 2 are sex chromosomes
Vesicles Containers tha store, transport and recycle materials
Cell receptors Glycoproteins that receive signals, allowin gthem to change the activity of a cell
Golgi Body Like FEDEX, processes and packages proteins and lipids
Stages of early development mnemonic Zebras Make Bugs Garbled
Zygote Fertilized egg
Morula Solid ball of cells
Blastocyst Hollow ball of cells
Gastrula 3-layered ball of cells
Seminiferous Tubules Where spermatozoa/sperm is made.
Spermatogonia Made in the seminiferous tubules, makes spermatocytes.
Sertoli Cells In seminiferous tubules, nourish developing sperm cells. S for seminiferous, toli-nourish.
Seminal Vesicles Secretes semen, connected to the vas deferens to exit the ejaculatory duct.
Interstitial Cells Produces testosterone and is in the seminiferous tubules.
Epididymis Sperm E-exits the testes.
Acrosome Lysosome in the sperm head that will cause the sperm to open and release its DNA.
Allantois In the placenta, stores waste. French, like Bidet.
Amniotes Includes humans, birds, and mammals
Amniotic Egg In birds and reptiles, encloses the embryo in a watery environment.
Chorion Lines the outermost layer of the embryo in mammals, birds, and reptiles. Protects the embryo, nurtures and forms the placenta.
Amnion In birds, it contains nourishment, in humans, it forms the umbilical cord which also technically plays a role in nourishment. Amnion-nourishment.
Follicular Phase Days 1-13, menstruation, rebuilding endometrium, oocyte maturation
What does LH do to females? Triggers ovulation, and progesterone production
What does LH do to males? Acts on interstitial cells, producing testosterone
What does FSH do to females? Stimulates ovarian follicular growth, helps eggs mature and estrogen production
What does FSH do to males? With testosterone, acts on Sertoli Cells, which then work to produce sperm
Created by: AKDakd
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