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生物 大学生・専門学校生・社会人

至急お願いいたします🚨 生物の質問です。 ミトコンドリアの経路についての説明だと思うのですが、電子オーバーフローモデルと電子分布モデルの違いを教えていただきたいです。 また、どういう仕組みなのか、何故このように電子が流れるのかも教えていただきたいです。 UQ poolはユ... 続きを読む

(A) Electron overflow model (considered out-of-date) Alt UQ pool Alternative oxidase inactive. Alt No alternative pathway activity Cytochrome pathway unsaturated Cyt (B) Electron distribution model (reflects current thinking) UQ pool Cyt Alternative pathway active Cytochrome pathway saturated Alt Alternative oxidase active Alt UQ pool Cyt Cyt Figure 14.33 Two models for regulation of electron flow through the alternative oxidase. (A) In the electron overflow model, no appreciable electron transfer through the alternative pathway takes place until electron flow through the cytochrome pathway is at or near satu- ration. This could result from the effects of respirato- ry control, if the rate of mitochondrial ATP produc- tion exceeds its rate of utilization in the cytosol, or from some externally imposed stress, such as low temperature. Under such circumstances, the UQ pool becomes sufficiently reduced to allow electrons to flow through the alternative oxidase, the latter re- quiring that the UQ pool be 40% to 60% reduced to attain significant activity. (B) In the electron distribu- tion model, the alternative and cytochrome path- ways both show significant activity at low levels of UQ pool reduction, and electrons are distributed be- tween the two pathways on the basis of the relative activities of each pathway. The activity of the alter- native oxidase under these circumstances is thought to be regulated by the action of a-keto acids and by reduction/oxidation of the intermolecular disulfide bond, as well as by additional regulatory mecha- nisms not yet characterized.

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英語 高校生

(A)の問題の(1)~(6)までの答えと訂正した回答を教えてほしいです。よろしくお願いします。

【4】 次の設問 (A), (B) に答えよ。 (配点 30> (A) 次の(1)~(6) の各英文には、下線部ア~エのいずれか1つに文法・語法に関して不 適切な あるいは文意を通らなくする箇所が含まれている。 その下線部の記号を記せ。 ア (1) It is estimated that the surface temperature of our planet has been risen by about half a degree Celsius, compared to a hundred years ago, and some scientists believe it's going to get warmer yet in the years to come. (2) In English-speaking cultures, children are often told to say "please" when asking for something. By so doing, they are more likely to be given イ permission than they do not. If they don't, their parents give them a hint, by asking them " What's the magic word?" Trying to forecast weather is incredibly complicated. Some scientists P believe that no matter how advanced science is, weather is impossible to イ predict it accurately, because there are too many random elements involved. (3) Inuits are a related group found in Alaska, and also in Canada and Greenland. They are thought to have spread into North America from Siberia many thousands years ago. In both the US and Britain these people are ウ often called Eskimos but the name Inuit is now preferred and is becoming more widely used. 5) The Cold War is a term for the political conflict between the capitalis countries of the West and the Communist countries of the East that begar 7 after World War II. Both sides had large military forces which were kep イ ready for war, and threatened at each other with nuclear weapons. I

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英語 高校生

この文章の和訳教えてください お願いします😭

B Section 4: Readthe folowing passage and answer the questions below. (16pts) Over time. ve become increasingly aware that he worid is dided into people(1) (CD waitfor のgive them ③1o do ④Mhey want to do ⑥he lhings ⑦ permission (others to ⑨who ) and people who grant hemselves permission. Some look inside themselves for motvatlon and (2) (the other anolher / others ) wait to be pushed fonward by oulside forces. From my experience.(3) there's_a loLto be said for seizing opportunities instead ofwaling for someone to hand therm to you. There are aways white spaces ready to be fled and goden nuggets ofopporuntles Iing on the ground watting for someone to plck hem up Sometimes it means looking (4) Yourown desk (9 your bulding.(a the seet around the comer. Butthe nuggels are there for the taKing by anyone (5) (w t gather hem up (1) Tne words in () are notin he lght order Rearrange the words(①こ⑨) Io match the Japanese Translatlon、「自分がやりたいことをする許可を他人が与えてくれるのを待っている」 Write your answerin numbers(①ご⑨) in order (3pt) ⑱⑨-① -⑧ -@ - の. ③⑧- @⑯ -@ -@ ⑫) Choose the most suiable word to complete the sentence and wrte your answer below. (1pU) others. ⑬) Choose Ne corect Japanese meaning orihe underined phrase in INe passa9e and Chole he ppropdate number below (①ー④) (2pts) には利点がたくさんある 。 ②には多くのことが言われている 879 ④~の運命だと言われている 。 ④ くじ引きがあると言われている

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