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单选题 The fatty acids with chain lengths of ___ or fewer carbons enter mitochondria without the help of membrane transporters
学科：Biochemistry 《生物化学》一 专业基础课（全英教学）
时间：2025-06-08 16:07:31
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题目1单选题
Mitochondria convert long-chain fatty acids to the two-carbon fragment acetyl-CoA via ___________, which undergoes further oxidation to form CO2 in the citric acid cycleA. α oxidationB. β oxidationC. γ oxidationD. ω oxidation
题目2单选题
On average, _____ or more of the daily energy requirement of humans in highly industrialized countries is supplied by dietarytriacylglycerols, although most authoritative nutritional guidelines recommend no more than 30% of daily caloric intake from fatsA. 30%B. 40%C. 50%D. 60%
题目3单选题
Bile salts, such as taurocholic acid, which are synthesized from cholesterol in the ________, stored in the gallbladder, and released into the small intestine after ingestion of a fatty mealA. liverB. pancreasC. gallbladderD. stomach
题目4单选题
The diameter of chylomicrons ranges from about __________ nmA. 50 to 300B. 50 to 400C. 100 to 300D. 100 to 500
题目5单选题
Various combinations of lipid and protein produce particles of different densities, ranging from chylomicrons and very-low-density lipoproteins (VLDL) and low-density lipoprotein (LDL) to very-high-density lipoproteins (VHDL) and high-density lipoprotein (HDL), which can be separated by ______________A. affinity chromatographyB. ultracentrifugationC. ion exchange chromatographyD. size exclusion chromatography
题目6单选题
When the diet contains more fatty acids than are needed immediately for fuel or as precursors, the liver converts them to triacylglycerols, which are packaged with specific apolipoproteins into very-low-density lipoproteins (VLDLs). These VLDLs are secreted by hepatocytes and transported in the blood to ____________, where the triacylglycerols are removed and stored in lipid droplets within adipocytesA. musclesB. kidneysC. adipose tissuesD. liver
题目7单选题
The serum albumin makes up about half of the total serum proteins, noncovalently binds as many as ___ fatty acids per protein monomerA. 6B. 8C. 10D. 12
题目8单选题
The glycerol released from triacylglycerols by lipase action is phosphorylated by _______________, and the resulting glycerol 3-phosphate is oxidized to dihydroxyacetone phosphate. The glycolytic enzyme triose phosphate isomerase converts this compound to glyceraldehyde 3-phosphate, which is oxidized via glycolysisA. glycerol phosphorylaseB. glycerol kinaseC. glycerol phosphotaseD. glycerol hydrolase
题目9单选题
In 1948, the American biochemists Eugene P. Kennedy and Albert L. Lehninger found that the enzymes of fatty acid oxidation in animal cells are located in the ____________________A. inner mitochondrial membraneB. outer mitochondrial membraneC. mitochondrial matrixD. cytosol
题目10单选题
The fatty acids with chain lengths of ___ or fewer carbons enter mitochondria without the help of membrane transportersA. 8B. 10C. 12D. 14
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