CHAPTER 12 THE CELL CYCLE

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CHAPTER 12 THE CELL CYCLE
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Reproduction
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Growth and Development
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Tissue renewal
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Identical chromatids

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Brown eyes
Blue eyes
Tongue roller
Tongue roller
Loci-place where a certain gene is located
Unattached
Attached
Nontasterr
Taster
Homologous chromatids
Identical chromatids
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Identical chromatids
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INTERPHASE G2
Centrioles
Cell membrane Nuclear membrane
Nucleolus
Chromatin
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PROPHASE
Polar fibers
Centrosome clear area
Astral fibers
aster
Chromatids
Centromere
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PROMETAPHASE
Kinetochore
Polar fiber

Kinetochore fiber
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METAPHASE

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METAPHASE

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ANAPHASE
Metaphase plate
Actin and myosin microfilaments

Chromosome
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TELOPHASE
Chromatin
Polar fibers being broken down and pulled together
Nuclear membrane reforming
Cleavage furrow
Nucleolus
Centrioles have already duplicated
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Cell wall
Plasma membrane
Vesicles w/pectin Golgi Body
New cell membrane
Cell plate Middle lamella
New primary cell walls
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Binary fission-cell division in prokaryotes
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Binary fission-cell division in prokaryotes
mesosomes
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Binary fission-cell division in prokaryotes
mesosomes
mesosomes
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Cyclin-allosteric activator for Cdk-cyclin
dependent protein kinases MPF-cyclin-Cdk complex
that phosphorylates several enzymes that start
mitosis. MPF also activates enzymes that degrade
cyclins.
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PDGF-platelet-derived growth factor is a growth
factor that binds to tyrosine-kinase receptors
and triggers a signal-transduction pathway that
stimulates cell division
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transformation-evasion of destruction? tumor-mass
of abnormal cells in normal tissue? benign
tumor-cells remain at original site? malignant
tumor-becomes invasive enough to impair function
of neighboring organs? metastasis-the spread of
cancer cells away from their site of origin
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