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Biology CH10 Terms
Quiz Review
Question | Answer |
---|---|
Involves the fusion of two separate parent cells | sexual reproduction |
the process by which a cell divides into two new smaller, daughter cells | cell division |
involves the production of two genetically identical cells/offspring from a single parent | asexual reproduction |
cell cycle phase in which the cell grows and replicates DNA | interphase |
cell cycle phase in which sister chromatids pull apart and move to opposite sides of the cell | anaphase |
complex of a DNA molecule coiled around special proteins (histones) | chromatin |
condensed (supercoiled) packages of DNA that contain genetic info | chromosomes |
the two identical copies of the same chromosome formed by DNA replication | sister chromatids |
organelles that help with cell division in animal cells | centriole |
cell cycle phase in which the genetic material condenses (coils) making chromosomes become visible, moving to opposite poles | prophase |
structure that attaches or holds sister chromatids together | centromere |
cell cycle phase in which a nuclear envelope forms around chromosomes, spindle fibers disappear, and chromosomes decondense or uncoil to become invisible | telophase |
phase in the cell cycle in which the cytoplasm completely divides eventually creating two new identical daughter cells | cytokinesis |
cell cycle phase in which chromosomes line up across the middle of the cell | metaphase |
the overall division of a cell into two smaller, identical daughter cells (just the division phases) | mitosis |
proteins that stimulate the growth and division of cells | growth factors |
a mass of cells | tumor |
a disorder in which the body cells lose the ability to control cell division | cancer |
a protein that regulates the timing of the cell cycle | cyclins |
a process programmed cell death | apoptosis |
the developing stage of a multicellular organism | embryo |
cell that can develop into any body cell type EXCEPT tissue around the embryo | pluripotent |
adult stem cells that are usually LIMITED to only being able to form the tissue where they are found | multipotent |
cells that are able to form into any type of cell in the body | totipotent |
PROCESS in which cells become specialized | differentiation |
unspecialized cell that caan give rise to one or more types or specialized cells | stem cells |
a hollow ball of cells with a cluster of cells inside known as the inner mass | blastocyst |