06-10-2026, 11:47 AM
[center]![[Image: cd74a645948ef513bcf85f8e2d33bdaa.jpg]](https://i127.fastpic.org/big/2026/0610/aa/cd74a645948ef513bcf85f8e2d33bdaa.jpg)
Biology Igcse Course Unit 12
Published 6/2026
MP4 | Video: h264, 1920x1080 | Audio: AAC, 44.1 KHz, 2 Ch
Language: English | Duration: 53m | Size: 1.31 GB
Respiration
What you'll learn
In this course students will learn exactly what they need to know for their Biology IGCSE exams. Students will learn about
1. State the uses of energy in living organisms
2. Investigate and describe the effect of temperature on respiration in yeast
3. Describe aerobic respiration as the chemical reactions in cells that use oxygen to break down nutrient molecules to release energy[/center]
4. State the word equation for aerobic respiration as: glucose + oxygen → carbon dioxide + water
5. State the balanced chemical equation for aerobic respiration as: C6H12O6 + 6O2 → 6CO2 + 6H2O
6. Describe anaerobic respiration as the chemical reactions in cells that break down nutrient molecules to release energy without using oxygen
7. State that anaerobic respiration releases much less energy per glucose molecule than aerobic respiration
8. State the word equation for anaerobic respiration in yeast as: glucose → alcohol + carbon dioxide
9. State the word equation for anaerobic respiration in muscles during vigorous exercise as: glucose → lactic acid
10. State the balanced chemical equation for anaerobic respiration in yeast as: C6H12O6 → 2C2H5OH + 2CO2
11. State that lactic acid builds up in muscles and blood during vigorous exercise causing an oxygen debt
12. Outline how the oxygen debt is removed after exercise, limited to
(a) continuation of fast heart rate to transport lactic acid in the blood from the muscles to the liver
(b) continuation of deeper and faster breathing to supply oxygen for aerobic respiration of lactic acid
c) aerobic respiration of lactic acid in the liver
Requirements
Access to a device to watch lessons - phone, tablet, or computer No textbook needed - everything is covered in the course
Description
This Biology course is structured specifically around the latest Cambridge IGCSE and GCE Biology syllabus, ensuring complete and accurate coverage of every objective students need to master for their examinations. Students preparing for AP Biology, IB Biology, or equivalent international curricula will also find this course highly valuable for building a thorough understanding of the theory component of their exams, as the core biological concepts covered are closely aligned across these specifications.
The course focuses onUnit 12: Respiration, one of the most important and most frequently examined units in the entire Biology course. Respiration underpins almost every living process - from muscle contraction and nerve impulse transmission to growth and cell division - and examiners test it consistently and in depth across all papers. Getting this unit right is essential.
Every syllabus objective is covered comprehensively, without overloading you with irrelevant material. The content is precise, focused, and directly aligned with what examiners expect - so you spend your time learning exactly what matters and nothing that does not. Throughout every lesson, real past paper questions are used to show you how this unit is examined, what a full-mark answer looks like, and the common mistakes that cost students marks every single year. You will know not just what to say, but how to say it - and equally importantly, what not to write.
The course builds strongexam technique alongside content knowledge, covering every question type across Papers 1, 2, 3 and 4 - from multiple choice and short answer to structured and extended response questions. Students leave this course knowing exactly how to approach any question on this unit regardless of how it is worded.
Every video lesson comes with adownloadable PDF resource that contains everything you need to know for that specific lesson - definitions, diagrams, key points and exam tips - all written and structured to match exactly what the syllabus requires. There is no need to open a textbook, search for revision guides, or look anything up online. Simply watch the lesson, download the PDF, study from it, and go straight to past papers. Everything you need is right here in one place.
Thepractical component is fully covered in this course. Students are taken through two core investigations - the investigation into the effect of temperature on yeast respiration, and the investigation into using up oxygen during respiration. Both experiments are broken down in full - covering the method, variables, expected results, data interpretation and evaluation - with specific training on how to answer practical questions inPapers 5 and 6 that test experimental skills, data analysis and scientific reasoning under exam conditions.
This course is ideal for students aiming for high achievement and A* grades in Biology examinations.
Who this course is for
IGCSE Biology Students Preparing for External Exams
Biology Igcse Course Unit 12
Published 6/2026
MP4 | Video: h264, 1920x1080 | Audio: AAC, 44.1 KHz, 2 Ch
Language: English | Duration: 53m | Size: 1.31 GB
Respiration
What you'll learn
In this course students will learn exactly what they need to know for their Biology IGCSE exams. Students will learn about
1. State the uses of energy in living organisms
2. Investigate and describe the effect of temperature on respiration in yeast
3. Describe aerobic respiration as the chemical reactions in cells that use oxygen to break down nutrient molecules to release energy[/center]
4. State the word equation for aerobic respiration as: glucose + oxygen → carbon dioxide + water
5. State the balanced chemical equation for aerobic respiration as: C6H12O6 + 6O2 → 6CO2 + 6H2O
6. Describe anaerobic respiration as the chemical reactions in cells that break down nutrient molecules to release energy without using oxygen
7. State that anaerobic respiration releases much less energy per glucose molecule than aerobic respiration
8. State the word equation for anaerobic respiration in yeast as: glucose → alcohol + carbon dioxide
9. State the word equation for anaerobic respiration in muscles during vigorous exercise as: glucose → lactic acid
10. State the balanced chemical equation for anaerobic respiration in yeast as: C6H12O6 → 2C2H5OH + 2CO2
11. State that lactic acid builds up in muscles and blood during vigorous exercise causing an oxygen debt
12. Outline how the oxygen debt is removed after exercise, limited to
(a) continuation of fast heart rate to transport lactic acid in the blood from the muscles to the liver
(b) continuation of deeper and faster breathing to supply oxygen for aerobic respiration of lactic acid
c) aerobic respiration of lactic acid in the liver
Requirements
Access to a device to watch lessons - phone, tablet, or computer No textbook needed - everything is covered in the course
Description
This Biology course is structured specifically around the latest Cambridge IGCSE and GCE Biology syllabus, ensuring complete and accurate coverage of every objective students need to master for their examinations. Students preparing for AP Biology, IB Biology, or equivalent international curricula will also find this course highly valuable for building a thorough understanding of the theory component of their exams, as the core biological concepts covered are closely aligned across these specifications.
The course focuses onUnit 12: Respiration, one of the most important and most frequently examined units in the entire Biology course. Respiration underpins almost every living process - from muscle contraction and nerve impulse transmission to growth and cell division - and examiners test it consistently and in depth across all papers. Getting this unit right is essential.
Every syllabus objective is covered comprehensively, without overloading you with irrelevant material. The content is precise, focused, and directly aligned with what examiners expect - so you spend your time learning exactly what matters and nothing that does not. Throughout every lesson, real past paper questions are used to show you how this unit is examined, what a full-mark answer looks like, and the common mistakes that cost students marks every single year. You will know not just what to say, but how to say it - and equally importantly, what not to write.
The course builds strongexam technique alongside content knowledge, covering every question type across Papers 1, 2, 3 and 4 - from multiple choice and short answer to structured and extended response questions. Students leave this course knowing exactly how to approach any question on this unit regardless of how it is worded.
Every video lesson comes with adownloadable PDF resource that contains everything you need to know for that specific lesson - definitions, diagrams, key points and exam tips - all written and structured to match exactly what the syllabus requires. There is no need to open a textbook, search for revision guides, or look anything up online. Simply watch the lesson, download the PDF, study from it, and go straight to past papers. Everything you need is right here in one place.
Thepractical component is fully covered in this course. Students are taken through two core investigations - the investigation into the effect of temperature on yeast respiration, and the investigation into using up oxygen during respiration. Both experiments are broken down in full - covering the method, variables, expected results, data interpretation and evaluation - with specific training on how to answer practical questions inPapers 5 and 6 that test experimental skills, data analysis and scientific reasoning under exam conditions.
This course is ideal for students aiming for high achievement and A* grades in Biology examinations.
Who this course is for
IGCSE Biology Students Preparing for External Exams
Code:
https://rapidgator.net/file/e1e0243205520d785d1c3f122f5ca5dd/Biology_IGCSE_Course_Unit_12.part2.rar.html
https://rapidgator.net/file/83f2f17f545a2d9668b877706e0cd5a8/Biology_IGCSE_Course_Unit_12.part1.rar.html
https://nitroflare.com/view/D437797452CDCAE/Biology_IGCSE_Course_Unit_12.part2.rar
https://nitroflare.com/view/7148A3E8355367D/Biology_IGCSE_Course_Unit_12.part1.rar