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36 Cards in this Set
- Front
- Back
Carbohydrates are stored in the liver in the form of ___________.
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Glycogen
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The carbon 2 fragment that enters the TCA cycle merges with what compound in Step One?
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Oxaloacetate
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A triglyceride has three fatty acids, each containing a single double bond. it could be best described as -
a) saturated b) super saturated c) poly unsaturated d) unsaturated e) dry |
Unsaturated
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An enzyme that catalyses the removal of a group of atoms from one molecule, and then joining that group to another molecule is called -
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Lyase
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The disaccharide Sucrose consists of -
a) a locked b-D-Galactose ring and a locked a-D-Glucose ring b) a fructose unit and a b-D-galactose ring c) a locked b-D-fructose ring and a locked a-D-glucose ring d) a ribose unit and a glucose ring e) a maltose unit, a fructose unit and a glucose unit |
c) a locked b-D-fructose ring and a locked a-D-Glucose ring
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What are lipases?
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Digestive enzymes
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What does a competitive inhibitor do?
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Binds to the active site of the enzyme
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A mixture of an equal amount of enantiomers is called -
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A racemic mixture
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What is a sphingomyelin best described as?
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Sphingolipid
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What type of linkages does the carbohydrate Amylopectin havedistributed throughout the structure?
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both a-(1-4) and a(1-6) linkages
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Monosaccharides have the chemical properties of:
a) sweetness b) solubility c) optical activity d) all of the above e) none of the above |
d) all of the above
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The outer membranes of the mitochondria are:
a) totally impermeable b) permeable to small molecules and ions c) called the matrix d) called the cristae e) permeable to ions but not to small molecules |
b) permeable to small molecules and ions
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What word describes the water attractive properties of lipids?
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Hydrophilic
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Why is a molecule of GTP different from a molecule of ATP?
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The nucleic base is Guanine rather than Adenine
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What type of structure is the sequence of amino acids in a protein?
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Primary
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A hydrophobic interaction is an example of a protein _____________ structure.
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Tertiary
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Where does the oxygen come from in the overall reaction of the oxidative phosphorylation reaction.
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The air we breathe in.
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In a cell mRNA is found in:
a) cytosol b) lysosomes c) nucleus d) outer cell membrane e) both a & c are correct |
e) both a & c are correct
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Which of these is ketone body?
a) fumerate b) malate c) succinate d) acetoacetate e) L-Arginine |
d) acetoacetate
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What is the metabolic pathway in which glucose is eventually converted to lactate?
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Glycolysis
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The end product of glycolysis is pyruvate. Pyruvate does not accumulate because it is:
a) converted to acetyl CoA b) reduced to lactate c) reduced to ethanol and carbon dioxide d) all of the above e) non of the above are chemically possible |
d) all of the above
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What is a complex lipid made up of glycerol, fatty acids, a phosphate group and another alcohol (such as choline, serine or ethanolamine) called?
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Glycerophospholipid
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What is the most abundant extra-cellular fluid called/
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Interstitial fluid
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What is catabolised in the urea cycle?
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Amino acids
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The compound UTP is used in biosynthetic processes. What does the U stand for?
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Uridine
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What are the receptors on cell membrane surfaces mostly composed of?
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Proteins
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Which element does protein contain that most lipids and carbohydrates lack?
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Nitrogen
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GTP is produced at what step in the Citric Acid Cycle?
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Step 5
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In RNA, bases align into combinations of three, called triplets or codons. What does each codon translate into.
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A single amino acid
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Ketogenic amino acids can be converted to acetoacetyl CoA. Amino acid that can do this are:
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Lysine and Leucine
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What type of process is glycogenesis>
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Anabolic
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The production of Ketone bodies arises from the catabolism of what?
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Protein
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What does the symbol PPi stand for?
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Inorganic phosphate
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What class of vitamins are part of the structures of FAD and NAD+?
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B Vitamins
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Why was the b Oxidation process so named?
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It produces carbon 2 fragments.
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What happens to the carbon dioxide that is produced by the body?
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Most of it is exhaled but some of it is used in a number of biosynthetic processes.
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