What's the difference between absorb and uptake?

Absorb


Definition:

  • (v. t.) To swallow up; to engulf; to overwhelm; to cause to disappear as if by swallowing up; to use up; to include.
  • (v. t.) To suck up; to drink in; to imbibe; as a sponge or as the lacteals of the body.
  • (v. t.) To engross or engage wholly; to occupy fully; as, absorbed in study or the pursuit of wealth.
  • (v. t.) To take up by cohesive, chemical, or any molecular action, as when charcoal absorbs gases. So heat, light, and electricity are absorbed or taken up in the substances into which they pass.

Example Sentences:

  • (1) 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.
  • (2) Photoreactions induced in that proper sensitizer molecules absorb UV-light or visible light.
  • (3) The use of an absorbable material may alleviate potential late complications associated with implantation of nonabsorbable materials.
  • (4) Absorbance or fluorescence measurements may be used for detection.
  • (5) Data are shown for both mutagenesis and carcinogenesis, indicating that, in this respect, even the smallest average organ absorbed dose can be effective, particularly for high-LET radiation.
  • (6) It is the absorbed dose in joules per gram that is biologically significant and the data shows that the mean absorbed dose to death within either sex shows no significant difference with respect to age or weight, but that the difference between the sexes are significant, particularly among the aged ex-breeders.
  • (7) Since iron from fortified formulas is well absorbed during the first three months of life, even if it is not immediately used for hemoglobin formation, an inccrease in the iron stores will occur...
  • (8) The drug-picrate chromophores maximally absorb within the first minute of reaction (21 s for phenacemide, 45 s for cephalothin), after which the absorbances decrease.
  • (9) This implies that these proteins are quantitatively absorbed from the peritoneum without undergoing modifications.
  • (10) The resulting cortexolone-Sepharose absorbed easily the cytosolic chick thymus glucocorticoid receptor.
  • (11) The activity of this autoantibody was absorbed by histidine and glutaminic acid.
  • (12) In these animals, propionate was the major VFA taken up by the liver and approximately 50% of absorbed acetate was also removed by the liver.
  • (13) On the other hand, ultraviolet (320-nm) light, absorbed by 3-hydroxy-pyridinium cross-links which were rapidly photolyzed, partially dissociated polymeric collagen aggregates from bovine Achilles tendon after subsequent heating.
  • (14) Perplexed, from being absorbed into some undateable future world governed by an advanced technology whose capacities have to be learned as one reads.
  • (15) This differential absorbance is linear with increasing concentrations of Na2MoO4 and was used to calculate the molar extinction coefficient of molybdochelin at 425 nm (epsilon similar to 6,200).
  • (16) Although differences were noted between species, the absolute rates of absorption measured indicate that the phthalate esters are slowly absorbed through both human and rat skin.
  • (17) By determining the solubility of CaTPA, the concentration of TPA that would be required to achieve urinary saturation was calculated, and a conservative estimate of the amount of TPA or DMT that would have to be absorbed in order to induce calculi was derived.
  • (18) All recombinants were found to be photochemically active, in that optical bleaching produced a temperature- and lipid chain-length-dependent mixture of species absorbing at 480 and 380 nm.
  • (19) Carotenoids are absorbed and then partially converted to retinol in the enterocytes.
  • (20) The filler did not absorb water, so the effect of the filler content on the diffusion coefficients of the water sorption was to be associated with of the law of mixture.

Uptake


Definition:

  • (v. t.) To take into the hand; to take up; to help.
  • (n.) The pipe leading upward from the smoke box of a steam boiler to the chimney, or smokestack; a flue leading upward.
  • (n.) Understanding; apprehension.

Example Sentences:

  • (1) In contrast, arteries which were exposed to CO showed a higher uptake of cholesterol as compared to their corresponding control.
  • (2) 5-HT thus appears to be the preferred substrate for uptake into platelets and for movement from cytoplasm to vesicles.
  • (3) The Na+ ionophore, gramicidin, had a small but significant inhibitory effect on Na(+)-dependent KG uptake, demonstrating that KG uptake was not the result of an intravesicular positive Na+ diffusion potential.
  • (4) Omission of K(+), Ca(++) or Mg(++) had no effect on uptake.
  • (5) Because cystine in medium was converted rapidly to cysteine and cysteinyl-NAC in the presence of NAC and given that cysteine has a higher affinity for uptake by EC than cystine, we conclude that the enhanced uptake of radioactivity was in the form of cysteine and at least part of the stimulatory effect of NAC on EC glutathione was due to a formation of cysteine by a mixed disulfide reaction of NAC with cystine similar to that previously reported for Chinese hamster ovarian cells (R. D. Issels et al.
  • (6) Manometric studies with resting cells obtained by growth on each of these sulfur sources yielded net oxygen uptake for all substrates except sulfite and dithionate.
  • (7) The PSB dioxygenase system displayed a narrow substrate range: none of 18 sulphonated or non-sulphonated analogues of PSB showed significant substrate-dependent O2 uptake.
  • (8) Mannose receptor mediated uptake by the reticuloendothelial system has been suggested as an explanation for the rapid removal of ricin A chain antibody conjugates from the circulation after their administration.
  • (9) In schizophrenic patients the density of dopamine uptake sites in the basal ganglia was slightly reduced, mainly in the middle third of putamen.
  • (10) During recovery glucose uptake was reduced and citrate release was unaffected.
  • (11) Spermine clearly activated 45Ca uptake by coupled mitochondria, but had no effect on Ca2+ egress from mitochondria previously loaded with 45Ca.
  • (12) If tracer is introduced into the carotid artery after osmotic treatment, brain uptake is increased by a net factor of 50 (a factor of 70 due to elevation of PA, multiplied by 7 due to infusion by the carotid route) as compared to uptake by normal, untreated brain with infusion into a peripheral vein.
  • (13) Prolonged immobilization was accompanied by a decrease in Ca-concentration dependence of Ca2+ uptake.
  • (14) Inhibition of thymidine uptake is attributed to an observed decrease in thymidine kinase activity caused by growth in 1 mM dibutyryl cyclic AMP, and possibly to a simultaneous alteration in membrane permeability.
  • (15) Uptake could be supported either by substrate oxidation or by adenosine 5'-triphosphate (ATP), and was inhibited in the former case by antimycin or cyanide, in the latter case by oligomycin, and in both cases by 2,4-dinitrophenol.
  • (16) Previous studies in this laboratory with particulate Mn3O4 have shown that preweanling rats have substantially higher tissue Mn concentrations than similarly treated adults, indicating possible differences in uptake or elimination or both.
  • (17) In contrast with oligodendrocytes, [Cl-]i in astrocytes is significantly increased (from 20 to 40 mM) above the equilibrium distribution owing to the activity of an inward directed Cl- pump; this suggests a different mechanism of K+ uptake in these cells.
  • (18) When labelled long-chain fatty acids or glycerol were infused into the lactating goat, there was extensive transfer of radioactivity into milk in spite of the absence of net uptake of substrate by the mammary gland.
  • (19) The telencephalon of teleost fish shows high affinity uptake for D-[3H]aspartate, intermediate levels of GABAergic markers and low levels of cholinergic enzymes.
  • (20) There was a highly significant relationship between the two tests, r = 0.88, P less than 0.001, although the uptake method gave consistently higher results than those obtained from plasma disappearance.