Terms in this set (...)
Cells that do not contain organelles, nuclear membrane, or cytoskeleton
Inhabit extreme environments
Cells that reproduce by fission and contain plasmids
Allows cells to change shape and perform mitosis
specialized structures that carry out specific cell functions
Kingdom composed of eukaryotes that are not classified as plants, animals, or fungi
the eukaryotic supergroup that contains the dinoflagellates, ciliates, the brown algae, diatoms, and water molds
foraminiferans and radiolarians
red algae, green algae, land plants
Euglenozoa and Euglenoids (aquatic)
Cells lack cell walls. When portions of the cell extend outward to move the cell, they form large lobes.
include animals, fungi, and several groups of protists
period of the cell cycle between cell divisions where DNA is replicated
Chromosomes become visible and spindle forms
The second stage of mitosis, in which the nuclear envelope fragments and the spindle microtubules attach to the kinetochores of the chromosomes.
phase of mitosis in which the chromosomes line up across the center of the cell
Phase of mitosis in which the chromosomes separate and move to opposite ends of the cell
After the chromosome seperates, the cell seals off, Final Phase of Mitosis.
division of the cytoplasm
Prophase I (Meiosis)
homologous chromosomes pair up and form tetrads, crossing over occurs
Metaphase I (Meiosis)
Tetrads are lined up, Spindle fibers attach
Anaphase I (Meiosis)
Homologous chromosomes separate
Telophase I (Meiosis)
2 nuclei form and cytokinesis occurs
Chromosomes still consist of two chromatids.
similar to interphase. it is a resting stop for cells
The duplicated chromosomes and spindle fibers reappear in each new cell.
Chromosomes line up at the equator.
sister chromatids separate
Nuclear membrane reforms, cytoplasm divides, 4 daughter cells formed
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