Respiration
Akopọ
Every living cell needs a continuous supply of energy to drive processes like muscle contraction, protein synthesis, and cell division. That energy comes from respiration, a set of chemical reactions that release energy from glucose. Importantly, respiration is not the same as breathing: it happens inside cells, not inside lungs.
In this lesson you will compare aerobic and anaerobic pathways, learn the word and balanced symbol equations for each, and explore how ATP acts as the universal energy currency of the cell. These reactions underpin almost every other topic in biology, and Edexcel tests them as short-answer and extended-writing questions across both papers.
Awọn Afojusun
- Understand how the process of respiration produces ATP in living organisms
- Know that ATP provides energy for cells
- Describe the differences between aerobic and anaerobic respiration
- Know the word equation and the balanced chemical symbol equation for aerobic respiration in living organisms
- Know the word equation for anaerobic respiration in plants and in animals
- Investigate the evolution of carbon dioxide and heat from respiring seeds or other suitable living organisms
Àwòrán ọpọlọ
A ti ṣe àwòrán kókó yìí kí o lè rí bí àwọn èrò ṣe so pọ̀.
Ṣí àwòrán ọpọlọ nínú áàpù
Káàdì ìrántí
Ìdánrawò kíákíá lórí ohun tí wọ́n ń dán wò nínú kókó yìí.
Ṣe ìdánrawò káàdì wọ̀nyí nínú áàpù
Akọ̀wé Ẹ̀kọ́
Àkọsílẹ̀ Ẹ̀kọ́ Pípé wà lórí Ohun Èlò Green Bridge
Gba ohun èlò Green Bridge CBT sórí fóònù tàbí kọ̀mpútà rẹ fún gbogbo ilé ìkàwé IGCSE: ìwé ìdánwò àtijọ́, ìlànà ìdíwọ̀n, àwòrán èrò, káàdì ìkẹ́kọ̀ọ́ àti ẹ̀kọ́ ohùn.
Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Respiration. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- Where does aerobic respiration mainly take place in a cell? A) Nucleus B) Cell membrane C) Cytoplasm D) Mitochondria Answer: D
- What is the waste product of anaerobic respiration in yeast? A) Lactic acid B) Carbon dioxide only C) Ethanol and carbon dioxide D) Water and carbon dioxide Answer: C
- Which of the following is NOT a use of energy from respiration? A) Muscle contraction B) Photosynthesis C) Active transport D) Protein synthesis Answer: B
- How many more times ATP does aerobic respiration produce per glucose molecule compared with anaerobic? A) About 2 times B) About 5 times C) About 19 times D) About 100 times Answer: C
- What causes the oxygen debt after vigorous exercise? A) The lungs need to recover from breathing fast B) Extra oxygen is needed to break down lactic acid C) Carbon dioxide must be removed from the blood D) The heart rate needs to return to normal Answer: B
Ṣiṣẹ́ lórí àwọn ìbéèrè wọ̀nyí nínú ohun èlò náà
Ṣiṣẹ́ lórí àwọn ìbéèrè wọ̀nyí nínú ohun èlò náà
Awọn Iwe Itọsọna Ti a Gba Nimọran
Ẹ̀kọ́ síwájú láti àwọn orísun ṣíṣí
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Abala ìwé ẹ̀kọ́
Energy in Living Systems
Discuss the importance of electrons in the transfer of energy in living systems
"Biology: Energy in Living Systems" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/biology/pages/7-1-energy-in-living-systems. Access for free at https://openstax.org/books/biology/pages/1-introduction
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Abala ìwé ẹ̀kọ́
Metabolism without Oxygen
Discuss the fundamental difference between anaerobic cellular respiration and fermentation
"Biology: Metabolism without Oxygen" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/biology/pages/7-5-metabolism-without-oxygen. Access for free at https://openstax.org/books/biology/pages/1-introduction
Àwọn àjọ mìíràn ló tẹ̀ wọ́n jáde lábẹ́ ìwé àṣẹ ṣíṣí, a sì dá wọn lọ́lá bí wọ́n ṣe béèrè. Àwọn ìjápọ̀ ń ṣí ojú òpó wọn.
Ṣe Adaṣe Awọn Ibeere Idanwo Adaṣe
Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Respiration? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.
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