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BIOL 3070 - possible midterm 3 SA.docx - Possible BIOL 3070...

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Possible BIOL 3070 – Midterm Short AnswersGrowthBone Growth/Lengthening1.Chondrocytes on the outer edge of the plate next to the epiphysis will proliferate leadingto a temporary widening of the plate thus adding length to the bone2.New chondrocytes form at the edge while older chondrocytes progress towards diaphysis and undergo hypertrophy to increase cell size3.ECM surrounding the oldest cartilage becomes calcified by the deposition of calcium salts leading to the death of old chondrocytes4.Osteoclasts dissolve the dead chondrocytes and calcified matrix creating open cavities within the matrix5.Osteoblasts progress upwards from diaphysis and deposit bone over the remnants of thedisintegrating cartilageInsect Molting: Cuticle1.The intermolt stage is before the molt2.At the beginning of a molt, apolysis takes place such that the epidermis separates from the cuticle3.Molting fluid containing inactive enzymes is secreted by the epidermis into the

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Term
Winter
Professor
Mukai
Tags
ecdysis

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