In food, the best ratio of saturated fatty acid, monounsaturated fatty acids, polyunsaturated fatty acid should be ( )

The olfactory regions of the nose are yellow, richly moist, and _________. A: fully fatty substances B: full, fatty substances C: full of fatty substances D: fatty substances are full

From inside to outside the arranging order of renal envelop is(). A: fibrous capsule, fatty renal capsule and renal fascia B: fibrous capsule, renal fascia and fatty renal capsule C: renal fascia, fatty renal capsule and fibrous capsule D: renal fascia, fibrous capsule and fatty renal capsule E: fatty renal capsule, fibrous capsule and renal fascia

From inside to outside, the arranging order of renal envelop is A: fibrous capsule, fatty renal capsule and renal fascia B: fibrous capsule, renal fascia and fatty renal capsule C: renal fascia, fatty renal capsule and fibrous capsule D: renal fascia, fibrous capsule and fatty renal capsule

We evaluated the associations between serum omega-3 and omega-6 poly-unsaturated fatty acid levels and colon cancer risk in a study conducted between 1997 and 2002. We included 363 cases of colon cancer and 498 disease-free controls. Serum omega-3 poly-unsaturated fatty acid levels were inversely associated with colon cancer risk. Subjects in the upper 33% of serum omega-3 poly-unsaturated fatty acids had a 33% lower risk of colon cancer as compared with subjects in the lower 33% of serum omega-3 poly-unsaturated fatty acids. In contrast, the risk of colon cancer was increased by omega-6 poly-unsaturated fatty acids by 68%. This is the first study that simultaneously finds an inverse association of serum omega-3 poly-unsaturated fatty acids and a positive association of omega-6 poly-unsaturated fatty acids with colon cancer. The study design is a:

The fatty acid -oxidase system is present in the cytoplasm.（）

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

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.

The main fatty acids that elevated blood cholesterol levels are：

Carnitine can inhibit the oxidative decomposition of fatty acids.（）