*Question*
Answer the following question given this paragraph: plants. Saturated triglycerides are those containing a higher proportion of saturated fatty acid chains (fewer carbon-to-carbon double bonds); unsaturated triglyceridescontain a higher proportion of unsaturated fatty acid chains. Saponification is the hydrolysis of a triglyceride in a basic solution to form glycerol and three carboxylate anions or soap molecules. Other important reactions are the hydrogenation and oxidation of double bonds in unsaturated fats and oils. Phospholipids are lipids containing phosphorus. In phosphoglycerides, the phosphorus is joined to an amino alcohol unit. Some phosphoglycerides, like lecithins, are used to stabilize an emulsiona dispersion of two liquids that do not normally mix, such as oil and water. Sphingolipids are lipids for which the precursor is the amino alcohol sphingosine, rather than glycerol. A glycolipidhas a sugar substituted at one of the OH groups of either glycerol or sphingosine. All are highly polar lipids found in cell membranes. Polar lipids have dual characteristics: one part of the molecule is ionic and dissolves in water; the rest has a hydrocarbon structure and dissolves in nonpolar substances. Often, the ionic part is referred to as hydrophilic (literally, "water loving") and the nonpolar part as hydrophobic ("water fearing"). When placed in water, polar lipids disperse into any one of three arrangements: micelles,monolayers, and bilayers. Micelles are aggregations of molecules in which the hydrocarbon tails of the lipids, being hydrophobic, are directed inward (away from the surrounding water), and the hydrophilic heads that are directed outward into the water. Bilayers are double layers arranged so that the hydrophobic tails are sandwiched between the two layers of hydrophilic heads, which remain in contact with the water. Every living cell is enclosed by a cell membrane composed of a lipid bilayer. In animal cells, the bilayer consists mainly of phospholipids, glycolipids, and the steroid cholesterol. Embedded in the bilayer are integral... Q: What are the lipids containing phosphorus? Choices: - eukaryotes - hemoglobin - alkaloids - phospholipids A:
**Answer**
phospholipids

*Question*
Answer the following question given this paragraph: In rheumatoid arthritis, the immune system attacks joints. This causes joint damage and pain. Q: Which type of arthritis causes the immune system to attack joints? Choices: - Osteoarthritis - Gout - Spondylarthropathies - rheumatoid A:
**Answer**
rheumatoid

*Question*
Answer the following question given this paragraph: ingest their food and usually develop into motile creatures with a fixed body plan. Most members of the animal kingdom have differentiated tissues of four main classesnervous, muscular, connective, and epithelialthat are specialized to perform different functions. Most animals reproduce sexually, leading to a developmental sequence that is relatively similar across the animal kingdom. Organisms in the animal kingdom are classified based on their body morphology and development. True animals are divided into those with radial versus bilateral symmetry. Animals with three germ layers, called triploblasts, are further characterized by the presence or absence of an internal body cavity called a coelom. Animals with a body cavity may be either coelomates or pseudocoelomates, depending on which tissue gives rise to the coelom. Coelomates are further divided into two groups called protostomes and deuterostomes, based on a number of developmental characteristics. Q: Most members of the animal kingdom have differentiated tissues of four main classesnervous, muscular, connective, and this? Choices: - neural - crystalline - digestive - epithelial A:
**Answer**
epithelial

*Question*
Answer the following question given this paragraph: Q: What creates charged regions in a water molecule? Choices: - nonpolar bonds - ionic bonds - noncovalent bonds - polar covalent bonds A:
**Answer**
polar covalent bonds