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BIOLOGY 235 MIDTERM 1- VERSION B

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BIOLOGY 235 MIDTERM 1- VERSION B  Know directional terms  Know components of the lipid bi-layer o Phospholipids, Cholesterol, and Glycolipids  Bonds between water molecules- what type of ... bond is it? o Hydrogen Bond  Facilitated diffusion and what role does carrier protein play o Channel mediated or Carrier mediated. Moves solute down conc. grad. Undergoes shape change  Know Transcytosis o Endocytosis to enter, Exocytosis to exit  Is synovial membrane considered an epithelial membrane? o No, doesn’t have epithelium. Lines joints and connective tissue.  Know what role triglycerides and cholesterol plays in body o Triglycerides: Energy storage (twice efficient) o Cholesterol: synthesize steroids. Makes bilayer stronger, less fluid. Except at low temperature  Know location of the Nail Bed (hyponchium) o Underneath Nail Body o Hyponchium secures nail to fingertip o Eponychium (cuticle) is stratum corneum above and proximal to lunula  Which layer of the epithelium is not present in Thick skin? o Thin Skin doesn’t have lucidum. Thick skin has Basale, Spinosum, Granulosum, Lucidum, Corneum BSGLC  Properties of Enzymes o Lowering activation energy to speed up biochemical reactions  What is not a common characteristic of epithelium? o All epithelium is tightly packed in sheets by cell junctions and without BV except ones lined on BV. Function as barrier, secretion, protection. Types – covering/lining and glandular  Choose example of a positive feedback system o Birth, Blood loss  Wound healing- does it result in Fibrosis? o Near perfect if parenchymal cells. If stroma fibroblasts repair, collagen and ECM causes scar.  What lines the Medullary Cavity? o Endosteum  What organelle metabolises ETOH in the liver? o Peroxisomes  Know which epithelium lines the heart, lymph vessels and arteries o Simple Squamous Epithelium  Understand Mitosis and the phase where chromosomes are visible under microscope o Prophase  Review epithelial tissues  Location of Foramen Magnum and which bone of the skull it is located in (diagram question) o Occipital Bone  Formation of a Bony Callus o Fracture  Reactive Phase: Inflammation, Fracture hematoma is blood clot  Reparative Phase: BV grow into hematoma. Fibroblasts produce collagen fibers, chondroblasts produce fibrocartilage – fibrocartilaginous callus (soft) In healthy areas, osteoprogenitor cells become osteoblasts and produce spongy bone trabeculae. Joins living and dead bone cells – bony callus (hard)  Remodelling Phase: Osteoclasts resorption dead bone cells. Compact replaces spongy.  Hyoid bone- which bone formation do the ligaments attach to, to suspend the hyoid bone? o Styloid processes of temporal bones  Be able to label where Haversian Canal is (central canal) o Inside lamellae rings. Lacunae is gaps with osteocytes. Canaliculi is processes. This is in compact bone.  Label Apex of the Sacrum o Between S5-Co1  Scapular notch location o Superior to scapula. Holds suprascapular nerve  Olecranon Fossa o Humerus  Capitulum and Radial Fossa  Radius  Trochlea  Coronoid F [Show More]

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