Chapter 7 Flashcards
Meiosis
Production of gametes 46 chromosomes (diploid) in body cells 23 chromosomes (haploid) in sex cells
Stages of mitosis
Interphase Prophase Metaphase Anaphase Telophase
Interphase
“Before” or “start” phase
Nucleus and centrosomes are separate
Prophase
Chromatids coil up
Chromosomes move away from each other toward the parent cell
Metaphase
“Middle” phase
Chromosomes are lined through the centre of the cell
Each chromatid attaches to a spindle fiber
Anaphase
“Apart phase”
Chromosomes are pulled to each side of the cell
Telophase
“End phase”
Cell begins to split into 2
Hypertrophy
Increase in cell size
Atrophy
Decrease in cell size
Hyperphasia
When a cell responds to changes in internal environment by increasing reproduction
Neoplasm
Mass of cells
Benign
Harmless growths of the neoplasm
Malignant Tumour
Cells break away and travel through blood or lymphatic vessels
Anaplasia
Cells fail to differentiate into a specialized type of cell
Dysplasia
Abnormal change in shape, size, or organization of cells in a tissue