T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 10 – Arkady Leokum<\/p>\n\n\n\n
Ph\u1ea7n l\u1edbn ch\u00fang ta c\u0169ng ch\u01b0a hi\u1ec3u \u0111\u01b0\u1ee3c \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi \u0111\u00e3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u00fang ta nh\u01b0 th\u1ebf n\u00e0o? V\u00ed d\u1ee5, \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi h\u1ee7y di\u1ec7t n\u1ea5m v\u00e0 vi khu\u1ea9n \u1edf tr\u00ean da ch\u00fang ta. T\u00e1c \u0111\u1ed9ng c\u1ee7a \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi tr\u00ean da s\u1ea3n sinh m\u1ed9t ch\u1ea5t l\u00e0m cho m\u1ea1ch m\u00e1u tr\u00ean da co l\u1ea1i v\u00e0 nh\u01b0 th\u1ebf l\u00e0m t\u0103ng \u00e1p huy\u1ebft. Tia c\u1ef1c t\u00edm t\u1eeb m\u1eb7t tr\u1eddi s\u1ea3n sinh vitamin D cho c\u01a1 th\u1ec3.<\/p>\n\n\n\n
M\u1ed9t trong nh\u1eefng t\u00e1c \u0111\u1ed9ng m\u00e0 m\u1eb7t tr\u1eddi \u0111\u1ec3 l\u1ea1i tr\u00ean da ch\u00fang ta l\u00e0 t\u1ea1o n\u00ean m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng g\u1ecdi l\u00e0 \u1eedng h\u1ed3ng. C\u00f3 m\u1ed9t ch\u1ea5t trong da g\u1ecdi l\u00e0 histidin. Tia c\u1ef1c t\u00edm c\u1ee7a m\u1eb7t tr\u1eddi chuy\u1ec3n h\u00f3a histidin th\u00e0nh m\u1ed9t ch\u1ea5t l\u00e0m gi\u00e3n n\u1edf c\u00e1c m\u1ea1ch m\u00e1u khi\u1ebfn da tr\u1edf n\u00ean h\u1ed3ng.<\/p>\n\n\n\n
Sao g\u1ecdi l\u00e0 \u201cr\u00e1m n\u1eafng\u201d? Da c\u00f3 ch\u1ee9a m\u1ed9t ch\u1ea5t g\u1ecdi l\u00e0 tyrosin. Tia c\u1ef1c t\u00edm t\u00e1c \u0111\u1ed9ng v\u00e0o ch\u1ea5t n\u00e0y v\u00e0 bi\u1ebfn \u0111\u1ed5i n\u00f3 th\u00e0nh m\u1ed9t m\u00e0u n\u00e2u g\u1ecdi l\u00e0 melanin. Ch\u1ea5t n\u00e0y n\u1eb1m v\u00f9ng tr\u00ean th\u01b0\u1ee3ng b\u00ec v\u00e0 l\u00e0m cho da \u201cs\u1eadm l\u1ea1i\u201d m\u00e0 ta g\u1ecdi l\u00e0 r\u00e1m n\u1eafng. Ch\u1ea5t melanin c\u0169ng b\u1ea3o v\u1ec7 da ch\u1ed1ng l\u1ea1i nh\u1eefng t\u00e1c \u0111\u1ed9ng kh\u00e1c c\u1ee7a tia n\u1eafng.<\/p>\n","protected":false},"excerpt":{"rendered":"
T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 10 – Arkady Leokum Ph\u1ea7n l\u1edbn ch\u00fang ta c\u0169ng ch\u01b0a hi\u1ec3u \u0111\u01b0\u1ee3c \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi \u0111\u00e3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u00fang ta nh\u01b0 th\u1ebf n\u00e0o? V\u00ed d\u1ee5, \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi h\u1ee7y di\u1ec7t n\u1ea5m v\u00e0 vi khu\u1ea9n \u1edf tr\u00ean da ch\u00fang ta. T\u00e1c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15],"tags":[],"class_list":["post-15780","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15780","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=15780"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15780\/revisions"}],"predecessor-version":[{"id":15781,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15780\/revisions\/15781"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=15780"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=15780"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=15780"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}