8.1 Metabolism
Quiz by Dr. Reza M
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- Q 1/10Score 0The first enzyme in the metabolic pathway that produces isoleucine is threonine deaminase. Which graph illustrates the relationship between threonine deaminase activity and threonine concentration?29ABDC
10 questions
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- Q1The first enzyme in the metabolic pathway that produces isoleucine is threonine deaminase. Which graph illustrates the relationship between threonine deaminase activity and threonine concentration?ABDC45s
- Q2The graph shows the effect of substrate concentration on the rate of an enzyme-catalysed reaction with and without an inhibitor. What do the curves J, K and L on the graph indicate?CDBA60s
- Q3Which is a reduction reaction?FAD changing to FADH2NADPH changing to NADPMaltose changing to glucoseATP changing to ADP45s
- Q4Metabolic pathways are dependent on enzyme-catalysed reactions. Which term corresponds with the description?DACB45s
- Q5Which structure found in eukaryotes has a single membrane?MitochondrionNucleusChloroplastLysosome30s
- Q6The graph shows the rate of an enzymatic reaction versus the substrate concentration, in the absence or presence of an enzyme inhibitor. Which condition is indicated by lines Y and Z?BDAC60s
- Q7The graph shows an example of an enzyme-catalysed reaction. What does the curve labelled X represent?No inhibitionCompetitive inhibitionReversible inhibitionNon-competitive inhibition60s
- Q8In one of the curves in the graph, the rate of an enzyme-catalysed reaction has been plotted against the substrate concentration in presence of a small quantity of a competitive inhibitor. Which curve represents competitive inhibition?DACB60s
- Q9Which describes the role of amino acids in the channels of membrane proteins used for facilitated diffusion?Non-polar amino acids create a channel through which hydrophobic molecules can pass.Polar amino acids create a channel through which hydrophilic molecules can pass.Non-polar amino acids create a channel through which hydrophilic molecules can pass.Polar amino acids create a channel through which hydrophobic molecules can pass.60s
- Q10What describes non-competitive inhibition?Inhibiting molecule does not resemble substrate and binds to active siteInhibiting molecule resembles substrate and binds to an area other than active siteInhibiting molecule resembles substrate and binds to active siteInhibiting molecule does not resemble substrate and binds to an area other than active site60s
