What's the difference between pentadecane and saturated?
Pentadecane
Definition:
(n.) A hydrocarbon of the paraffin series, (C15H32) found in petroleum, tar oil, etc., and obtained as a colorless liquid; -- so called from the fifteen carbon atoms in the molecule.
Example Sentences:
(1) Recoveries of n-paraffins added to 55 g oyster at a level of 0.36 ppm ranged from 80% for normal pentadecane to 100% for n-paraffins over 18 carbon atoms.
(2) Exposure of these cells to the methyl ketone, pentadecan-2-one, results in a marked decrease in the primary alcohol content with the secondary alcohol, pentadadecan-2-ol, becoming the major alcohol present.
(3) The observation that the ethyl ketone, hexadecan-3-one, also inhibits cell growth but at higher concentrations than that observed with pentadecan-2-one and that pentadecan-2-o1 at similar concentrations has no effect on cell growth indicates that, for optimal effect, the keto function must be at the 2-position.
(4) The effect of inclusion of trace amounts of pentadecan-2-one in the incubation medium on the growth of HeLa Cells was evaluated by measuring viable cell counts (cells excluding trypan blue) and incorporation of [14C] leucine into acid precipitable protein.
(5) Cholesterol biosynthesis was stimulated by cell culture in lipid depleted medium and was inhibited by pentadecane-2-one which acts mainly at two post-HMG-CoA steps: lanosterol demethylation and lathosterol isomerisation to cholesterol.
(6) This change in lipid composition is associated with a significant decrease in growth rate that is proportional to the log of the pentadecan 2-one concentration of the incubation medium.
(7) Neutral lipid, phospholipid, and cell residue fatty acids were qualitatively and quantitatively determined for M. cerificans grown on nutrient broth, tetradecane (C(14)), pentadecane (C(15)), hexadecane (C(16)), and heptadecane (C(17)), respectively.
(8) This inhibition is relieved by simultaneously incubating the cells with a long chain primary alcohol, hexadecan-1- o1, but not with the secondary alcohol, pentadecan-2-o1.
(9) Pentadecan-2-one added to the culture medium apparently gains entrance to the cell since both pentadecan-2-one and pentadecan-2-ol were detected in the ketone-treated cells and their culture medium.
(10) Normal alkanes (e.g., n-pentadecane) are degraded, after terminal oxidation, by the beta-oxidation system operational in fatty acid catabolism.
(11) Simultaneous exposure of the bacteria to pentadecan-2-one and a mixture of primary alcohols results in a partial relief of the growth inhibition observed with the ketone alone.
(12) A parallel pentadecane-2-one inhibition of cell growth was also observed, even when cells were cultured in the presence of whole serum.
(13) Starting from pentadecane-1,15-diol and rac-glycerol-1,2-acetonide, a convergent synthesis of 1-O-[16'-2H3]hexadecyl and 1-O-[18'-2H3]octadecyl rac-glycero-3-phosphocholine and their acetyl derivatives is described.
(14) Inhibition of cell growth by pentadecan-2-one is not unique to HeLa cells, as suggested by the inhibitory effects of this lipid type on the growth of other malignant cell lines of human origin.
(15) These observations indicate that pentadecan-2-one inhibits the formation of primary alcohols that are important for normal growth of this bacterium.
(16) The hydrocarbon degradation rate could be doubled by the addition of sophorose lipids as biosurfactants in a model system containing 10% soil and a 1.35% hydrocarbon mixture of tetradecane, pentadecane, hexadecene, 1,2,4-trimethylcyclohexane, pristane (2,6,10,14-tetramethylpentadecane) phenyldecane and naphthalene suspended in mineral salts medium.
(17) In heart mitochondria the stress induced a decrease in the content of capric, lauric, myristic and pentadecanic acids.
(18) When these cells are incubated with pentadecan-2-ol alone, growth is unaffected.
(19) HeLa cells exposed to trace amounts of pentadecan-2-one showed changes in metabolism of 1(-14)C-palmitate.
(20) When offered separately, the highest utilization of n-alkanes by the organism was obtained in the range of undecane to octadecane; n-pentadecane was poorly utilized.
Saturated
Definition:
(imp. & p. p.) of Saturate
(a.) Filled to repletion; holding by absorption, or in solution, all that is possible; as, saturated garments; a saturated solution of salt.
(a.) Having its affinity satisfied; combined with all it can hold; -- said of certain atoms, radicals, or compounds; thus, methane is a saturated compound. Contrasted with unsaturated.
Example Sentences:
(1) However, four of ten young adult outer arm (relatively sun-exposed) and one of ten young adult inner arm (relatively sun-protected) fibroblasts lines increased their saturation density in response to retinoic acid.
(2) Arterial oxyhaemoglobin saturation (SaO2) was monitored continuously during normal labour in 33 healthy parturients receiving pethidine and nitrous oxide for analgesia.
(3) The Cao-dependent Na+ efflux was half-maximally activated by [Ca2+]o = 2.0 mM in LiSW and 7.2 mM in Tris-SW; at saturating [Ca2+]o, [Ca2+]i, and [Na+]i the maximal (calculated) Cao-dependent Na+ efflux was approximately 75 pmol#cm2.s.
(4) With fields and fells already saturated after more than four times the average monthly rainfall falling within the first three weeks of December, there was nowhere left to absorb the rainfall which has cascaded from fields into streams and rivers.
(5) They retained the ability to make this discrimination when the coloured stimuli were placed against a background bright enough to saturate the rods.3.
(6) There were few significant differences between high polyunsaturated (safflower oil) and saturated fat (lard) diet groups.
(7) Saturated acyl residues predominated in lysolecithin and unsaturated ones in acids released by hydrolysis of egg lecithin.
(8) Furthermore, in induced Friend cells 100 microM Fe-SIH stimulated 2-14C-glycine incorporation into heme up to 3.6-fold as compared to the incorporation observed with saturating concentrations of Fe-Tf.
(9) The present results using approximately 12% hemoglobin concentration in 0.1 M Bistris buffer at pD 7 and 27 degrees C with and without organic phosphate show that there is no significant line broadening on oxygenation (from 0 to 50% saturation) to affect the determination of the intensities or areas of these resonances.
(10) In air-saturated solutions of DNA, yields of 8-hydroxypurines were not influenced greatly by DNA conformation.
(11) A fiberoptic flow-directed catheter inserted into the hepatic vein continuously measures hepatic venous oxygen hemoglobin saturation (ShvO2).
(12) Partially purified fatty acid synthetase produced saturated and unsaturated fatty acids with chain lengths of C10 to C18.
(13) A method using selective saturation pulses and gated spin-echo MRI automatically corrects for this motion and thus eliminates misregistration artifact from regional function analysis.
(14) All reported studies have documented small 5 to 10 mm Hg decrements of blood pressure with dietary supplementation with these fatty acids and conversion of the ratio of polyunsaturated to saturated fatty acids toward unity.
(15) The first step is the preparation of a globulin-enriched fraction by precipitation with ammonium sulfate at 50% saturation, or of an immune-complex-enriched fraction by precipitation with 5% polyethylene glycol 6000.
(16) GTP and its analogues decrease the requirement of the reaction for Ca2+ and also increase its activity at saturating Ca2+.
(17) At saturating levels of AMP (greater than or equal 2.0 mM) maximum activation is observed with 25 mM KCl, whereas at lower substrate concentrations (0.2 mM) approximately 50 mM KCl is needed for maximum activation.
(18) The kinetic pattern of changes in hemoglobin saturation, cyt.
(19) The current work utilizes an empirical relationship between HbO2 saturation measurements and reflected light oximetry, which is consistent with the two-flux theory of Kubelka and Munk (Z.
(20) Safety was assessed by clinical follow-up, continuous recording of arterial oxygen saturation during the procedure with a digital oximeter, and measuring FEV1, FEF25-75, and FVC just before and 5 min after bronchoscopy.