T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 4 – Arkady Leokum m\u1ecdi sinh v\u1eadt \u0111\u1ec1u ph\u1ea3i th\u1edf. C\u00f3 \u0111i\u1ec1u c\u00e1ch th\u1edf c\u1ee7a c\u00e1c sinh v\u1eadt kh\u00f4ng ho\u00e0n to\u00e0n gi\u1ed1ng nhau. V\u00e0 th\u1edf c\u00f3 ngh\u0129a l\u00e0 c\u01a1 th\u1ec3 h\u1ea5p thu kh\u00ed oxy. Con ng\u01b0\u1eddi h\u1ea5p thu kh\u00ed oxy trong kh\u00f4ng kh\u00ed b\u1eb1ng c\u00e1ch h\u00fat kh\u00f4ng kh\u00ed v\u00f4 ph\u1ed5i. th\u1edf l\u00e0 m\u1ed9t v\u1eadn \u0111\u1ed9ng h\u1ebft s\u1ee9c th\u00f4ng th\u01b0\u1eddng, th\u01b0\u1eddng xuy\u00ean nh\u01b0ng l\u1ea1i c\u00f3 t\u00ednh quy\u1ebft \u0111\u1ecbnh sinh t\u1eed \u0111\u1ed1i v\u1edbi sinh v\u1eadt. ta th\u01b0\u1eddng th\u1edf m\u1ed9t c\u00e1ch t\u1ef1 ph\u00e1t, t\u1ef1 \u0111\u1ed9ng v\u00e0 v\u00f4 \u00fd th\u1ee9c. tuy nhi\u00ean th\u1edf l\u00e0 m\u1ed9t v\u1eadn h\u00e0nh h\u1ebft s\u1ee9c ph\u1ee9c t\u1ea1p. Khi th\u1edf, kh\u00f4ng kh\u00ed v\u00e0o c\u01a1 th\u1ec3 th\u00f4ng qua m\u1ed9t lo\u1ea1t \u201c\u1ed1ng d\u1eabn\u201d. tr\u01b0\u1edbc h\u1ebft l\u00e0 l\u1ed7 m\u0169i. t\u1ea1i \u0111\u00e2y, m\u1ed9t ph\u1ea7n c\u1ee7a nh\u1eefng ph\u1ea7n t\u1eed nho nh\u1ecf nh\u01b0 b\u1ee5i, ph\u1ea5n l\u00e0m h\u1ea1i ph\u1ed5i s\u1ebd b\u1ecb gi\u1eef l\u1ea1i, x\u1eed l\u00fd v\u00e0 th\u1ea3i ra. \u0111\u1ed3ng th\u1eddi, l\u1ed7 m\u0169i c\u0169ng l\u00e0m \u1ea5m kh\u00f4ng kh\u00ed tr\u01b0\u1edbc khi v\u00e0o ph\u1ed5i. t\u1eeb m\u0169i, kh\u00f4ng kh\u00ed \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o y\u1ebft h\u1ea7u. t\u1ea1i \u0111\u00e2y kh\u00f4ng kh\u00ed \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o hai \u1ed1ng kh\u00e1c nh\u1ecf h\u01a1n g\u1ecdi l\u00e0 kh\u00ed qu\u1ea3n. Qua hai kh\u00ed qu\u1ea3n, kh\u00f4ng kh\u00ed s\u1ebd \u0111\u01b0\u1ee3c d\u1eabn v\u00e0o hai l\u00e1 ph\u1ed5i. Ph\u1ed5i l\u00e0 m\u1ed9t c\u01a1 quan kh\u00e1 l\u1edbn v\u00e0 m\u1ec1m. Ph\u1ed5i \u0111\u01b0\u1ee3c bao b\u1eb1ng m\u1ed9t m\u00e0ng m\u1ecfng g\u1ecdi l\u00e0 \u201cm\u00e0ng ph\u1ed5i\u201d. Ph\u1ed5i l\u00e0 nh\u1eefng m\u00f4 li\u00ean k\u1ebft v\u1edbi nhau nom gi\u00f4ng gi\u1ed1ng nh\u01b0 b\u1ecdt bi\u1ec3n r\u1ea5t m\u1ecbn. Nh\u01b0ng ph\u1ed5i g\u1ed3m c\u00e1c nang – t\u1ee9c l\u00e0 c\u00e1c t\u00fai – n\u01a1i \u0111\u00e2y ch\u1ee9a kh\u00f4ng kh\u00ed t\u1eeb ngo\u00e0i \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o v\u00e0 c\u0169ng l\u00e0 n\u01a1i ch\u1ee9a c\u00e1c th\u1ee9 kh\u00ed b\u1ecb th\u1ea3i ra.<\/p>\n\n\n\n
Kh\u00f4ng kh\u00ed t\u1eeb ngo\u00e0i v\u00e0o g\u1ed3m c\u00e1c th\u1ee9 nh\u01b0 oxy, nit\u01a1, carbon dioxide v\u00e0 c\u1ea3 h\u01a1i n\u01b0\u1edbc n\u1eefa. C\u0169ng ch\u00ednh c\u00e1c th\u1ee9 kh\u00ed n\u00e0y c\u00f3 trong m\u00e1u v\u1edbi s\u1ed1 l\u01b0\u1ee3ng kh\u00e1c nhau, t\u1ea5t nhi\u00ean! Khi h\u00edt th\u1edf kh\u00f4ng kh\u00ed trong l\u00e0nh th\u00ec trong nang ph\u1ed5i ch\u1ee9a nhi\u1ec1u kh\u00ed oxy h\u01a1n trong m\u00e1u. Kh\u00ed oxy th\u1ea9m th\u1ea5u qua v\u00e1ch mao qu\u1ea3n \u0111\u1ec3 v\u00e0o m\u00e1u v\u00e0 khi carbon dioxide t\u1eeb m\u00e1u – c\u0169ng qua v\u00e1ch mao qu\u1ea3n – th\u00e2m nh\u1eadp v\u00e0o nang ph\u1ed5i, sau \u0111\u00f3 b\u1ecb t\u1ed1ng ra khi ta th\u1edf ra.<\/p>\n\n\n\n
\u1ede \u0111\u00e2y ta ch\u1ec9 n\u00f3i m\u1ed9t c\u00e1ch h\u1ebft s\u1ee9c gi\u1ea3n l\u01b0\u1ee3c qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh c\u1ee7a \u0111\u1ed9ng t\u00e1c th\u1edf. V\u1ec1 c\u0103n b\u1ea3n, th\u1edf l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh trao \u0111\u1ed5i kh\u00ed, nh\u1edd \u0111\u00f3 c\u00e1c t\u1ebf b\u00e0o ti\u1ebfp nh\u1eadn kh\u00ed oxy v\u00e0 th\u1ea3i kh\u00ed carbon dioxide (th\u00e1n kh\u00ed).<\/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 4 – Arkady Leokum m\u1ecdi sinh v\u1eadt \u0111\u1ec1u ph\u1ea3i th\u1edf. C\u00f3 \u0111i\u1ec1u c\u00e1ch th\u1edf c\u1ee7a c\u00e1c sinh v\u1eadt kh\u00f4ng ho\u00e0n to\u00e0n gi\u1ed1ng nhau. V\u00e0 th\u1edf c\u00f3 ngh\u0129a l\u00e0 c\u01a1 th\u1ec3 h\u1ea5p thu kh\u00ed oxy. Con ng\u01b0\u1eddi h\u1ea5p thu kh\u00ed oxy trong kh\u00f4ng kh\u00ed […]<\/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-14269","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\/14269","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=14269"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14269\/revisions"}],"predecessor-version":[{"id":14270,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14269\/revisions\/14270"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=14269"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=14269"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=14269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}