时差N小时 脂肪是如何储存的?(上)

When you eat a fatty food, it moves through the stomach and on to the intestines².

当你食用富含高脂肪的食物时，它会通过胃进入肠道。

In the intestines, a number of processes occur to transfer fat from the food to special fat cells in your body.

在肠道中，脂肪经过一系列的消化过程后从食物中转化为体内的特殊脂肪细胞。

First, the gall³ bladder produces bile that breaks the food's fat droplets⁴ into smaller droplets.

首先，胆囊分泌胆汁，将食物中的脂肪滴分解，使其变得更小。

Next, the pancreas secretes⁵ enzymes⁶ that attack the fat droplets and break them down into two parts: fatty acids and glycerol.

然后，胰腺分泌的胰腺酶将脂肪滴分解为两个部分：脂肪酸和甘油。

This happens because fat droplets are too big to pass through cell membranes⁷.

这是因为脂肪滴太大，无法穿透细胞膜。

The broken down fat is absorbed by the cells lining⁸ the intestine¹, where it is reassembled into fat molecules⁹ and eventually shuttled into the blood stream with the help of lipoprotein particles.

分解后的脂肪被肠道粘膜细胞吸收，并重新组成脂肪细胞，最后通过脂蛋白颗粒的帮助进入血液循环。

1 intestine   

adj.内部的；国内的；n.肠

参考例句：

• This vitamin is absorbed through the walls of the small intestine.这种维生素通过小肠壁被吸收。
• The service productivity is the function,including external efficiency,intestine efficiency and capacity efficiency.服务业的生产率是一个包含有外部效率、内部效率和能力效率的函数。

2 intestines   

n.肠( intestine的名词复数 )

参考例句：

• Perhaps the most serious problems occur in the stomach and intestines. 最严重的问题或许出现在胃和肠里。 来自辞典例句
• The traps of carnivorous plants function a little like the stomachs and small intestines of animals. 食肉植物的捕蝇器起着动物的胃和小肠的作用。 来自辞典例句

3 gall   

v.使烦恼，使焦躁，难堪；n.磨难

参考例句：

• It galled him to have to ask for a loan.必须向人借钱使他感到难堪。
• No gall,no glory.没有磨难，何来荣耀。

4 droplets   

n.小滴( droplet的名词复数 )

参考例句：

• Droplets of sweat were welling up on his forehead. 他额头上冒出了滴滴汗珠。 来自辞典例句
• In constrast, exhaled smoke contains relatively large water droplets and appears white. 相反，从人嘴里呼出的烟则包含相当大的水滴，所以呈白色。 来自辞典例句

5 secretes   

v.（尤指动物或植物器官）分泌( secrete的第三人称单数 )；隐匿，隐藏

参考例句：

• The pineal gland secretes melanin during times of relaxation and visualization. 松果体在放松时分泌黑色素是明白无误的。 来自互联网
• For example, the archegonium (female organ) of the moss Funaria secretes sucrose. 例如藓类颈卵器（雌性器官）分泌蔗糖。 来自互联网

6 enzymes   

n. 酶，酵素

参考例句：

• It was said that washing powders containing enzymes remove stains more efficiently. 据说加酶洗衣粉除污更有效。
• Among the enzymes which are particularly effective are pepsin, papain. 在酶当中特别有效的是胃朊酶、木瓜酶。

7 membranes   

n.（动物或植物体内的）薄膜( membrane的名词复数 )；隔膜；（可起防水、防风等作用的）膜状物

参考例句：

• The waste material is placed in cells with permeable membranes. 废液置于有渗透膜的槽中。 来自辞典例句
• The sarcoplasmic reticulum is a system of intracellular membranes. 肌浆网属于细胞内膜系统。 来自辞典例句

8 lining   

n.衬里，衬料

参考例句：

• The lining of my coat is torn.我的外套衬里破了。
• Moss makes an attractive lining to wire baskets.用苔藓垫在铁丝篮里很漂亮。

9 molecules   

分子( molecule的名词复数 )

参考例句：

• The structure of molecules can be seen under an electron microscope. 分子的结构可在电子显微镜下观察到。
• Inside the reactor the large molecules are cracked into smaller molecules. 在反应堆里，大分子裂变为小分子。