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BIOL 235 Midterm 1B Guide Latest updated 2022
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BIOL 235 Midterm 1B Guide Latest updated 2022
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BIOLOGY 235MIDTERM 1- VERSION B
1. Know components of the lipid bi-layer
o The basic structural framework of the plasma membrane is the lipid bilayer, two
back-to-back layers made up of three types of lipid molecules—phospholipids,
cholesterol, and glycolipids
o The bilayer arrangement occurs because the lipids are amphipathic molecules, which
means that they have both polar and nonpolar parts.
2. Bonds between water molecules- what type of bond is it?
o Polar covalent/hydrogen bond
3. Facilitated diffusion and what role does carrier protein play
o Carrier proteins transport substances across membranes by changing shape
4. Know Transcytosis
o Active process of moving substances across a cell using vesicles, most often across
endothelial cells lining blood vessels
5. Is a synovial membrane considered an epithelial membrane?
o No, it is not
6. Know what role triglycerides and cholesterol plays in body
o Triglycerides: protection, insulation, energy storage
o Cholesterol: in bile salts, vit D and steroid hormones, important for steroid synthesis
7. Know location of the Nail Bed (hyponychium)
8. Which layer of the epithelium is not present in Thick skin?
o Lucidum is not in thin skin
o Thick does not have thin corneum
9. Properties of Enzymes
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, 10. What is not a common characteristic of epithelium?
o Epithelium are characterized by the arrangement of cells in layers and their shapes
o Characteristics: cellularity, polarity, attachment, vascularity and regeneration
11. Choose example of a positive feedback system
o Birth, ovulation, blood clotting, digestion
12. Wound healing- does it result in Fibrosis?
o Fibrosis is the formation of scar tissue at an injury but impairs original function
13. What lines the Medullary Cavity?
o endosteum
14. What organelle metabolizes ETOH in the liver?
o Smooth ER
15. Know which epithelium lines the heart, lymph vessels and arteries
o Simple squamous epithelium, endothelium
16. Understand Mitosis and the phase where chromosomes are visible under microscope
o prophase
17. Review epithelial tissues
o 2 types
Covering& lining epithelium for the outer cover of skin, some organs and the
inner lining of vessels, ducts and cavities
Glandular epithelium makes up the secreting portion of glands
18. Location of Foramen Magnum and which bone of the skull it is located in
o The foramen magnum is the inferior part of the occipital bone
This study source was downloaded by 100000839495789 from CourseHero.com on 06-09-2022 01:11:13 GMT -05:00
https://www.coursehero.com/file/62303190/BIOL-235-Midterm-1B-Guidedocx/
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