Chapter 3 Part 3 Flashcards
Cell growth between divisions -DNA and organelles replicate
Interphase
Cell divides
Mitotic phase
Separates 46 double stranded chromatids among 2 cells
Mitosis
Nuclear envelopes disappears
Prophase
Double stranded chromatids line up at middle of cel
Metaphase
Each chromatid strand moves away to opposite poles of cel
Anaphase
Nuclear envelope reforms
Telophase
Divides cytoplasm into 2 identical cells
Cytokinesis
Produces genetically non identical sex cells (gametes) by meiosis - each sex cell contains 23 chromosomes
Reproduction cel division
Cancer causing agents that produce permanent DNA change known as mutations
Carcinogens
A group of cells that divide without control
Tumor (neoplasm)
Tumors have the ability to metastasize (spread) to other body parts
Cancerous (malignant)
Tumors do not metastasize
Benign (non malignant)
Provides pain relief reduces swelling by increasing lymph flow decrease depression and anxiety
Massage
Radiation,surgery,chemotherapy
Cancer treatments
Involves the progressive alternation of body’s homeostatic responses
Aging
Causes include the formation of free radicals and ireversible cross links between cel membrane proteins
Aging
Vitamin C,E and selenium decrease free radical formations
Antioxidants
Normal genetically programmed cell death
Apoptosis
A pathological cell death resulting from disease
Necrosis
Produces genetically identical body cells by mitosis
Somatic cell division