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CHEM 210 EXAM MODULE 5 20 24 /2025 LATEST
EXAM ACCURATE SPRING SUMMER SESSION
Triacylglycerols are made from: A glycerol backbone Three fatty acids Amide linkages between fatty acids A glycerol backbone and three fatty acids All of the above Glycerol contains how many alcohol functional groups? 1 2 3 4 None of the above 3 Which of the following are derived from or made from fatty acids? Cholesterol Carotenoids Phosphoglycerides Both A and B Both A and C PHOSPHOGLYCERIDES
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3 / 3 pts
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3 / 3 pts
QUIZ@# 1
3 / 3 pts
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3 / 3 pts A GLYCEROL BACKBONE AND THREE FATTY ACIDS
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3 / 3 pts Lipid Membrane Sphingolipid OIL Integral protein Channel protein Transport protein Identify the lipid class given by the structural formula: Phosphoglyceride Sphingolipid Cholesterol Triacylglycerol None of these PHOSPHOGLYCERIDE are a class of membrane proteins that are firmly associated with the membrane bilayer. Peripheral protein
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0 / 3 pts
B. Carotenoid molecules C. Vitamin K D. Both A and C E. All of the above E. ALL OF THE ABOVE Which notation is for a fatty acid with two double bonds? A) 18:1( Δ Δ9,13) B) 18:2(Δ9,13)
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3 / 3 pts
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3 / 3 pts Inner transmembrane protein INTEGRAL PROTEIN Isoprene units are used to make. A. Cholesterol C) 14:1(Δ9,13)
Ceramide Glucose Sphingolipid Glycerol Phosphoglycerol GLYCEROL An ether linkage An alcohol linkage A peptide linkage Alkyl linkage Which types of membrane lipids determine the blood type of humans? Triacylglycerols Phosphoglycerides Cholesterol Fatty acids Sphingolipids SPHINGOLIPIDS Sphingolipids are found in high concentrations in the membranes of. organelles myelin sheaths all cells heart cells Vitamin K lipids MYELIN SHEATHS In a sphingolipid, the fatty acids are attached at carbon- 2 by this type of linkage? Amide linkage
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Are sometimes peripheral Are sometimes integral Assist in the transport of molecules Can get nutrients in and the waste molecule out of the cell All are correct ALL ARE CORRECT Peripheral membrane proteins Go all the way through the membrane and are firmly attached to the membrane
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3 / 3 pts QUIZ@# 16
3 / 3 pts
AMIDE LINKAGE Membrane proteins: Are firmly attached to the membrane Are lipids that can be either on the top of the cell or bottom of the cell Are associated with the inside or outside surface of the membrane None of the above
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3 / 3 pts Vitamin A Vitamin B Vitamin C Vitamin D Vitamin K VITAMIN K What molecule has four fused rings in its structure? is not found in membrane bilayers. Cholesterol Sphingolipid Triacylglycerol Phosphoglycerides All of these TRIACYLGLYCEROL What molecule that protects against UV rays is found both in bacteria and in the eyes? Sphingolipids Carotenoid Cholesterol Water CAROTENOID
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3 / 3 pts
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Sphingolipid Carotenoid Triacylglycerol Cholesterol Water CHOLESTEROL Is water soluble A MOLECULE THAT DISSOLVES IN A NON-POLAR SOLVENT In triacylglycerols, fatty acids are attached to glycerol via a/an linkage.
- O-CO-
- NH-
- O-NH-
- COO-
- C=C-
- O-CO- A lipid is. A fat An oil A molecule that dissolves in a non-polar solvent Is made from isoprene units
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3 / 3 pts
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3 / 3 pts
QUIZ@# 30
5 / 5 pts (short answer) What is the fluid mosaic model and what feature of the cells does it help us understand? The fluid mosaic model helps us understand biological membranes. It describes the fluid, complex nature of the membrane bilayer. Membranes have lipids and proteins in a rich mixture to help the cell survive.
