举一反三
- A. Saturated fatty acids lower blood LDL cholesterol in comparison with unsaturated fatty acids</p></p><p><p>B. Many observational studies do not indicate that intake of saturated fat is positively linked to CHD</p></p>
- Below you will find some examples of study designs, please select the correct design for each example. The relation between total fiber intake and colon cancer was studied in 35492 male participants. Fiber intake was measured via food frequency questionnaires at the beginning of the study in 1988 and every two years thereafter prior to an endoscopic procedure to assess colon cancer. Between 1988 and 2006, 2099 colon cancer cases occurred. Occurrence of colon cancer was 39% higher in people with the lowest fiber intake as compared with people with the highest fiber intake. The study suggests that low intakes of fiber in men is associated with an increased risk of colon cancer. The study design is a:
- In food, the best ratio of saturated fatty acid, monounsaturated fatty acids, polyunsaturated fatty acid should be ( )
- 中国大学MOOC: Phospholipids with short or unsaturated fatty acyl chains
- What would be the consequences of inhibiting the carnitine shuttle which transports fatty acids into the mitochondria? A: accumulation of fat droplets in liver and muscle. B: Increase in blood glucose concentration. C: Increase in fatty acid synthesis in the liver. D: Low levels of long chain free fatty acids in the blood.
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The main fatty acids that elevated blood cholesterol levels are：
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The final products of digestion are ? A: fatty acids, starch, glucose B: protein, amino acids, glucose C: protein, fat, carbohydrate D: glucose, amino acids, fatty acids
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The average molecular weight of oil can be reflected by measuring ( ) A: Saponification value B: Peroxide value C: Free fatty acids D: Trans fatty acids
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The acetyl CoA required for the synthesis of fatty acids is derive from ( ). A: fat mobilization B: β-oxidation of fatty acids C: degradation of amino acids D: glycolysis E: degradation of glucoses
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已知$f(t) \Longleftrightarrow F(j\omega)$,则$f(4-3t) $的傅立叶变换为 A: $\frac{1}{3} F(-j \frac{\omega}{3}) e^{-j \frac{4}{3} \omega}$ B: $3F(-j3\omega) e^{-j \frac{3}{4} \omega}$ C: $\frac{1}{3} F(j \frac{\omega}{3}) e^{-j \frac{4}{3} \omega}$ D: $3F(j3\omega) e^{-j \frac{3}{4} \omega}$