(n.) Any large macrurous crustacean used as food, esp. those of the genus Homarus; as the American lobster (H. Americanus), and the European lobster (H. vulgaris). The Norwegian lobster (Nephrops Norvegicus) is similar in form. All these have a pair of large unequal claws. The spiny lobsters of more southern waters, belonging to Palinurus, Panulirus, and allied genera, have no large claws. The fresh-water crayfishes are sometimes called lobsters.
Example Sentences:
(1) Quantitative measurements for 5-HT in lobster larvae were performed using high pressure liquid chromatography (HPLC) with dual electrochemical detection and for proctolin using radioimmunoassay.
(2) However, the 'essential' cysteine residue 165 is replaced by threonine, as it is in the L-lactate dehydrogenase of lobster.
(3) The responses of a population of 30 olfactory receptor cells from spiny lobsters to 8 behaviorally relevant complex types of stimuli at 0.005, 0.05 and 0.5 mM were analyzed using multidimensional scaling to evaluate their potential for coding quality and intensity.
(4) Using a spectrophotometric method, the kinetics of the crustacean muscle enzyme was compared to the acetylcholinesterase (AChE) on mammalian red blood cells and in the lobster ventral nerve cord.
(5) In crustacean nerve 12-14% of the phospholipids was in the form of alkyl ether phospholipids, which in the lobster were approximately half choline-containing and half ethanolamine-containing.
(6) Extracellular responses to complex biologically relevant stimuli were recorded from 30 primary olfactory cells from excised antennules of spiny lobsters.
(7) Analogues of arginine inhibit the exchange reaction of the lobster enzyme but enhance that of the Holothuria enzyme.
(8) Earlier studies identified purinergic chemoreceptors in the olfactory organ of the spiny lobster, Panulirus argus.
(9) The last in a line of fishermen, his 87-year-old grandfather is still catching lobsters.
(10) In view of the small molecular size and high lipid solubility of methyl mercury and the lipophilic properties of the chitin-protein exoskeleton of the lobster, it is likely that significant uptake directly from the water as well as storage of absorbed methyl mercury occurred in the tail region.
(11) The strongest extension response was produced at 2 Hz which falls within the normal range of swimmeret beating in intact lobsters.
(12) Feathered hair sensilla fringe both rami of the lobster (Homarus americanus) swimmeret.
(13) Of the other alkali-metal ions tested, only Rb+ activated phosphofructokinase from lobster abdominal muscle and rat heart muscle.
(14) This type of innervation was compared between a small and a large lobster where a two-fold difference in mean quantal content of synaptic transmission was found.
(15) The in vitro rates of incorporation of precursors into protein and RNA and the concentration of RNA were measured in tissues of intermolt and premolt lobsters acclimated to 5 degrees C and 20 degrees C. Midgut gland, abdominal muscle and gill of intermolt lobsters respond to temperature acclimation by a compensatory translation of the rate-temperature (R-T) curves with respect to the rates of incorporation of 3H-leucine and 3H-uridine into the acid-insoluble fraction.
(16) The role of histidyls in lobster arginine kinase (EC 2.7.3.3) has been studied by 1H-NMR spectroscopy of the enzyme and its complexes with substrates or their analogues and 31P-NMR spectroscopy of complexes with ADP.
(17) When the monocarboxymethylated enzyme was briefly treated with small amounts of iodine, iodination could be confined almost entirely to tyrosine-46 in the lobster enzyme; tyrosine-39 or tyrosine-42, or both, were also beginning to react.
(18) You’d be hard pushed to find half a dozen fresh oysters at this great price.” Frozen food giant Iceland sparked lobster wars last month with what it claimed was the cheapest cooked crustacean in Britain.
(19) Estrone, 17 beta-estradiol, or 17 alpha-estradiol was formed by central neural tissues of all species, with the exception of the opossum, hagfish, and lobster.
(20) Two metallothionein (low-molecular-weight, metal-binding proteins) preparations, MT-1 and MT-2, have been isolated from the digestive gland of American lobster (Homarus americanus) contaminated with Cd.
Prawn
Definition:
(n.) Any one of numerous species of large shrimplike Crustacea having slender legs and long antennae. They mostly belong to the genera Pandalus, Palaemon, Palaemonetes, and Peneus, and are much used as food. The common English prawn is Palaemon serratus.
Example Sentences:
(1) There was a certain amount of atmosphere too, thanks mostly to the West Ham fans keeping up a persistent din and celebrating the 15th anniversary of Roy Keane’s prawn sandwich remarks by noting the reserve of the home support.
(2) Wetlands also act as nursery grounds for juvenile fish and prawns.
(3) The small prawns found on the shore during the winter exhibited a much altered behaviour.
(4) The survival rate of the prawns reared under L0:D24 photoperiod was also higher than that of other groups.
(5) The portion of my sample prawn orzo was a modest but polished plate of food, the dense bisque and silky grains of pasta elegantly punctuated by small bursts of tart, sweet semi-dried tomato.
(6) In view of reports that the nerve fibers of the sea prawn conduct impulses more rapidly than other invertebrate nerves and look like myelinated vertebrate nerves in the light microscope, prawn nerve fibers were studied with the electron microscope.
(7) This summer’s shocking revelations about slavery in the Thai fishing industry , which supplies prawns to UK supermarkets, demonstrate that voluntary systems are failing to identify and eradicate these practices.
(8) In all the insecticide exposed prawn tissues, Ammonia levels were significantly increased and a shift in the nitrogen metabolism towards the synthesis of urea and glutamine was observed.
(9) This is what we imagined: the becalmed beauty of the Whitsunday Passage, that spectacular collection of islands protectively nestled inside the Great Barrier Reef, safe from prevailing winds; bright blue languid days gliding over turquoise waters, taking turns at the tiller in our togs; finding our own private cove as the sun goes down; diving into warm pristine waters; the tinkling of intimate laughter; the fizz of champagne and the sizzle of prawns on the barbie.
(10) Ridgeback prawns formed beta-D-glucosides in small quantities, preferring conjugation of p-nitrophenol and 4-nitro-m-cresol to form sulphates and unknown conjugates through a unique conjugation pathway.
(11) 0.2, 0.4, 0.6 and 0.8 for N-acetyl) of chitosan were prepared from prawn shell chitosan, and their susceptibility towards a lysozyme from hen egg-white, three microbial chitinases and a chitinase from potato skins was examined.
(12) At Maní, this quintessential Brazilian fruit comes in the form of a fuchsia-coloured cold soup with a prawn steamed in cachaça.
(13) Dab on a little water to help the cornflour stick to the prawns if necessary.
(14) Hepatopancreatic brush border membrane vesicles of the freshwater prawn, Macrobrachium rosenbergii and the marine lobster, Homarus americanus exhibited 22Na uptake which was Cl-independent, amiloride sensitive, and stimulated by a transmembrane H gradient (Hi greater than Ho).
(15) A prawn of 15 mm carapace length could not eliminate all snails.
(16) Changes in hepatopancreas, muscle and gill tissue nitrogen metabolic profiles were studied in a penaeid prawn, Penaeus indicus, following its exposure to sublethal concentrations of methylparathion, carbaryl and aldrin.
(17) Serves 2 1 lemon, very thinly sliced 1 tsp salt 1 tsp caster sugar For the garam masala 1 tsp black peppercorns 1 tsp cumin seeds 1 tsp coriander seeds 2 cardamom pods, seeds only ½ tsp ground cinnamon 1 whole clove For the prawns 2 small shallots, halved 10g ginger, finely grated 2 garlic cloves, finely grated ½ tsp chilli flakes 2 rosemary sprigs, leaves picked and finely chopped 125g tenderstem broccoli, sliced into thirds 200g large prawns, peeled 5g each of basil and coriander, leaves picked 1 Place the lemon slices in a bowl and sprinkle both sides with the salt and caster sugar.
(18) Enjoy tapas – grilled artichoke, skewers of chicken, grilled prawns, cheese or salty hot pork on warm bread – while standing at the marble bar, or raciones at a table round the back.
(19) Effects of phorbol ester (PE) (4 beta-phorbol-12,13-dibutyrate) on transmitter release were studied in the deep extensor neuromuscular system of the prawn, Macrobrachium rosenbergii.
(20) Population experiments demonstrated that a prawn of 25 mm carapace length could eliminate 95% of a population of 80 snails in a 20-1 aquarium within 20 days and all snails by day 40.