برزنتيشن عن الفيتامين في اللغة الإنجليزية منهج سلطنة عمان

نقدم لكم من منصة أفدني التعليمية للمنهاج العماني برزنتيشن عن الفيتامين منهج سلطنة عمان وستجد كل مايهمك من البرزنتيشن و مواضيع اللغة الإنجليزية وفقاً لمنهج وزارة التربية والتعليم في سلطنة عمان.

برزنتيشن عن الفيتامين منهج سلطنة عمان:

A vitamin is an organic compound required as a nutrient in tiny amounts by an organism

A compound is called a vitamin when it cannot be synthesized in sufficient quantities by an organism

and must be obtained from the diet

Thus, the term is conditional both on the circumstances and the particular organism

For example, ascorbic acid functions as vitamin C for some animals but not others

and vitamins D and K are required in the human diet only in certain circumstances

The term vitamin does not include other essential nutrients such as dietary minerals

essential fatty acids, or essential amino acids, nor does it encompass the large number of other nutrients that promote health but are otherwise required less often

Vitamins are classified by their biological and chemical activity, not their structure

Thus, each “vitamin” may refer to several vitamer compounds that all show the biological activity associated with a particular vitamin

Such a set of chemicals are grouped under an alphabetized vitamin “generic deor” title

such as “vitamin A,” which includes the compounds retinal

retinol, and many carotenoids. Vitamers are often inter-converted in the body

بنك ملفات الصف العاشر فصل أول منهج سلطنة عمان

برزنتيشنات متنوعة و شاملة في مادة اللغة الإنجليزية