50% -80% of vitamin D in food is absorbed in liver and enters the blood via lymph.
举一反三
- 50% -80% of vitamin D in food is absorbed in liver and enters the blood via lymph. A: 正确 B: 错误
- Which organ is the main organ to filtrate blood? A: Liver B: Lymph node C: Spleen D: Thymus E: Tonsil
- Task: Audio-visual Exercises AV Clip 4: AV 4.mp4 Watch the second part of the video clip and fill in each blank with the number mentioned in the video. When food is ingested, it travels along the (1) _____________where it is broken down into its (2) ___________________in order to be absorbed into the bloodstream. One such nutrient is (3) _______________, a simple sugar. Glucose gets absorbed by the stomach and (4) ________________and then enters the bloodstream. It travels through the (5) _____________ to all body cells. Once absorbed into the bloodstream, glucose circulates, causing the blood sugar level to rise. An increased level of blood sugar sends a signal to the (6) _________________ which respond by secreting the hormone insulin into the circulation. Insulin is necessary for glucose to reach and be used by several important (7) _______________tissues throughout the body. These include the liver muscle and (8) _____________ . Insulin is necessary to keep blood glucose levels stable in the body. Glucose enters the cell through a process called facilitated diffusion./js/editor20150812/dialogs/attachment_new/fileTypeImages/icon_default.gif
- Prions are considered “_________” because they can also spread from an affected individual to a normal individual via contaminated food, blood, or surgical instruments.
- after digestion and absorption of food fats， the resembled lipids in intestinal mucosal cells need （ ） to transport to blood， then to liver。 A: HDL B: chylomicron C: LDL D: VLDL