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5 Written questions

5 Matching questions

  1. Cytokinesis
  2. Seminal Fluid
  3. Asexual Reproduction
  4. Gametes
  5. Monozygotic (identical) Twins
  1. a - essentially genetic carbon copies of parent cells
    - identical to parent cells except for random mutations
    - different types: binary fission, budding, regeneration, parthenogenesis
  2. b - result when a single zygote splits into two embryos
    - if splitting occurs at the two-cell stage of development, embryos will have separate chorions and separate placentas
    - if it occurs at blastula stage, embryos only have one chorionic sac and share a placenta (and probably amnion)
  3. c - mixed with sperm, aids in sperm transport by lubricating passageways
    - semen: sperm + seminal fluid
    - produced by:
    a) seminal vesicles: fructose-rich fluid, serves as energy source
    b) prostate gland: alkaline milky fluid to protect from acidic environment in female's reproductive tract
    c) bulbourethral glands: small amount of viscous fluid, function unknown
  4. d - sperm and egg
    - produced in gonads
  5. e - happens at the end of telophase
    - cytoplasm divides into two daughter cells
    - in animal cells, a cleavage furrow forms, cell membrane indents along the equator of the cell and cell split

5 Multiple choice questions

  1. - the first time a female gets her period
  2. - happened 12-24 hours after ovulation
    - occurs in the lateral, widest portion of the fallopian tube
    - sperm travels through vaginal canal, cervix, uterus, and into the fallopian tubes to reach the ovum
    - sperm penetrates corona radiata, then zona pellucida, contact with ovum cell membrane, become acrosomal process, fuse sperm with ovum
    - sperm nucleus enters ovum's cytoplasm and ovum completes meiosis II
  3. - production of female gametes
    - occurs in the ovarian follicles
    - one primary oocyte completes meiosis I per month after menarche
    - yields two secondary oocyte and a polar body
    - secondary oocyte is expelled from the follicle during ovulation
    - meiosis II doesn't occur till fertilization
  4. - immature ova
    - diploid cells that form by mitosis in the ovary
    - at birth, all of the primary oocyte that a female will produce during her lifetime are already in her ovaries
  5. - testes contain two functional components: seminiferous tubules and interstitial cells (cells of Leydig)
    - sperm are produced in seminiferous tubules, nourished by Sertoli cells
    - interstitial cells secrete testosterone and anderogens
    - testes have to be 2-4°C lower than body temperature

5 True/False questions

  1. Cervix- lower, narrow end of the uterus
    - connects with the vaginal canal

          

  2. The Cell Cycle- inner layer of the oocyte cell membrane

          

  3. Reproduction- the regrowth of a lost or injured body part
    - replacement of cells occurs by mitosis
    - ex: hydra and starfish
    - in higher animals, regeneration is usually limited to the healing of tissues
    - some internal organs (liver) can regenerate considerably as long as part of the organ remains viable

          

  4. Female Reproductive Anatomy- testes contain two functional components: seminiferous tubules and interstitial cells (cells of Leydig)
    - sperm are produced in seminiferous tubules, nourished by Sertoli cells
    - interstitial cells secrete testosterone and anderogens
    - testes have to be 2-4°C lower than body temperature

          

  5. Stages of MitosisPMAT:
    a) Prophase
    b) Metaphase
    c) Anaphase
    d) Telophase