24 terms

Biology - Cell Cycle

Cell cycle, endo & exocytosis, cell organization.
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endocytosis
the process by which a cell membrane surrounds a particle and encloses the particle in a vesicle to bring the particle into the cell
exocytosis
process by which vesicles release their contents outside the cell
hypertonic solution
a solution in which the concentration of solutes is greater than that of the cell that resides in the solution
anaphase
the third phase of mitosis, during which the chromosome pairs separate and move toward opposite poles
cell cycle
the regular sequence of growth and division that cells undergo.
centriole
in animal cells, a cytoplasmic organelle that organizes the mitotic spindle fibers during cell reproductions
centromere
a specialized condensed region of each chromosome that appears during mitosis where the chromatids are held together to form an X shape
chromatin
the readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins
chromosome
threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next
cytokenesis
the division of the cytoplasm during the proceses of cell division
interphase
a period between two mitotic or meiotic divisions during which the cell grows, copies its DNA, and synthesizes proteins
metaphase
second phase of mitosis, during which the chromosomes line up across the center of the cell
mitosis
cell division in which the nucleus divides into nuclei containing the same number of chromosomes
organ
group of tissues that work together to perform closely related functions
organ system
A group of organs that work together in performing vital body functions.
prophase
first and longest phase of mitosis, during which the chromosomes become visible and the centrioles separate and take up positions on the opposite sides of the nucleus
sister chromotid
Sister chromatids are two identical copies of a single chromosome that are connected by a centromere.
spindle
(biology) tiny fibers that are seen in cell division
telophase
the final stage of mitosis or meiosis, during which a nuclear membrane forms around each set of new chromosomes
tissue
group of similar cells that perform a particular function
cancer
any malignant growth or tumor caused by abnormal and uncontrolled cell division
gene
sequence of DNA that codes for a protein and thus determines a trait
hypotonic solution
(of a solution) having a lower osmotic pressure than a comparison solution
isotonic solution
(used of solutions) having the same or equal osmotic pressure