Blackfox Posted April 6, 2007 Posted April 6, 2007 The hepatic portal vein is formed from the merger of which 3 main vessels?! Google/Wikipedia will help your quest, little nooblets.
Problematique Posted April 7, 2007 Posted April 7, 2007 Shit, my A level bilogy may fail me here, haha. Biochem was always my strong point tbh... Erm. Well. It carries blood from the intestines to the liver. From the liver the blood's carried away to the inferior vena cava (via the hepatic veins I believe). Can't tell you the other two, I'm not sure what the intestinal vessels are called.
Dan_Dare Posted April 7, 2007 Posted April 7, 2007 The hepatic portal vein is formed from the merger of which 3 main vessels?! Google/Wikipedia will help your quest, little nooblets. 'kn med students... :P
Supergrunch Posted April 7, 2007 Posted April 7, 2007 The hepatic portal vein is formed from the merger of which 3 main vessels?! Google/Wikipedia will help your quest, little nooblets. Off the top of my head, the gastric vein and the mesenteric vein. Wikipedia says splenic vein, superior mesenteric vein, and left and right gastric veins. Plus apparently the inferior mesenteric vein drains into the splenic vein.
Blackfox Posted April 7, 2007 Posted April 7, 2007 Off the top of my head, the gastric vein and the mesenteric vein. Wikipedia says splenic vein superior mesenteric vein, and left and right gastric veins. Plus apparently the inferior mesenteric vein drains into the splenic vein. Close enough. The Splenic vein and inferior mesenteric merge then they merge with the superior mesenteric vein = hepatic portal! I was drunk when I wrote that question
Supergrunch Posted April 7, 2007 Posted April 7, 2007 Righty ho, a biochem one. Name a process in the rough endoplasmic reticulum where ATP is converted to AMP.
spirited away Posted April 7, 2007 Posted April 7, 2007 Righty ho, a biochem one. Name a process in the rough endoplasmic reticulum where ATP is converted to AMP. 1010101010.
MoogleViper Posted April 7, 2007 Posted April 7, 2007 I thought this was supposed to be a friendly game?
Guest Stefkov Posted April 7, 2007 Posted April 7, 2007 I thought this was supposed to be a friendly game? Me too. Can't we make it easier, like Why did the chicken cross the road?
Supergrunch Posted April 7, 2007 Posted April 7, 2007 Hydrolysis/De-phosphorylation? Well, yeah, but the formation of what bond in particular?
Problematique Posted April 7, 2007 Posted April 7, 2007 Righty ho, a biochem one. Name a process in the rough endoplasmic reticulum where ATP is converted to AMP. Isn't it used in translation with the formation of peptide bonds between amino acids on the ribosomes embedded on the RER? That's the only one I can think of, it would make sense as the condensation is definitely not a spontaneous process. I'm thinking that you phosphorylate the carboxylate anion, nucleophilic attack by the amino group on the carbonyl...tetrahedral intermediate, kick out the best leaving group (PO4-) which leaves you with a peptide bond.
Blackfox Posted April 7, 2007 Posted April 7, 2007 Me too. Can't we make it easier, like Why did the chicken cross the road? 'Cos then it would just descend into a shitty spam thread - that's what the MPT is for! They only need a quick googling.
spirited away Posted April 7, 2007 Posted April 7, 2007 Is it problematique's go then or has no-one nailed it yet?
MoogleViper Posted April 7, 2007 Posted April 7, 2007 'Cos then it would just descend into a shitty spam thread - that's what the MPT is for! They only need a quick googling. I was thinking it was going to be more general knowledge. AKA What animal has the largest penis in relation to its body size?
spirited away Posted April 7, 2007 Posted April 7, 2007 I was thinking it was going to be more general knowledge. AKA What animal has the largest penis in relation to its body size? Platypus. Fact.
Supergrunch Posted April 7, 2007 Posted April 7, 2007 Isn't it used in translation with the formation of peptide bonds between amino acids on the ribosomes embedded on the RER? That's the only one I can think of, it would make sense as the condensation is definitely not a spontaneous process. I'm thinking that you phosphorylate the carboxylate anion, nucleophilic attack by the amino group on the carbonyl...tetrahedral intermediate, kick out the best leaving group (PO4-) which leaves you with a peptide bond. Correctamundo... your go.
Problematique Posted April 7, 2007 Posted April 7, 2007 Although I'm sure it's onlt ATP -> ADP rather than ATP -> AMP but there we go. I won't argue anymore. Hmm. By what action does cyanide kill mammals?
Supergrunch Posted April 7, 2007 Posted April 7, 2007 Although I'm sure it's onlt ATP -> ADP rather than ATP -> AMP but there we go. I won't argue anymore. Hmm. By what action does cyanide kill mammals? I'm pretty sure it's to AMP for that reaction. Anyway, cyanide kills mammals by acting as a non-reversible inhibitor to the cytochrome-oxidase complex on the inner membrane of mitochondria, thus arresting the electron transport chain and stopping aerobic respiration. This means that the body is unable to synthesise enough ATP for essential muscles such as the heart, the diaphragm and the intercostal muscles to contract, and so the mammal dies.
Problematique Posted April 7, 2007 Posted April 7, 2007 Bingo, cytochrome oxidase has an iron active site which the cyanide ion finds irresistable. Interstingly enough though it does not bind much to haemoglobin, instead preferring to go after cytochrome oxidase.
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