Gaseous exchange and Respiration, Form 2 Biology, Topic 5, Dr. Mlelwa

Gaseous exchange refers to the movement of oxygen and carbon dioxide across the respiratory surface. Is the process through which respiratory gaseous are passed through the respiratory surface.

Advanced 0(0 Ratings) 2 Students enrolled English-and-swahili
Created by Dr. Mlelwa
Last updated Tue, 21-Nov-2023
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Course overview

Gaseous exchange refers to the movement of oxygen and carbon dioxide across the respiratory surface. Is the process through which respiratory gaseous are passed through the respiratory surface. Respiratory surface are specialized organs for gaseous exchange. Gaseous exchange takes place through a process of diffusion.

Respiration: Is the metabolic activity or reaction in which complex food substances are broken down step by step to release energy within a cell.
Cellular Respiration:Is a set of metabolic reaction and process that takes place in the cell of organisms to convert biochemical energy from nutrients into ATP.
NB: The reaction involved is catabolic reaction, which breaks larger molecules into smaller ones to release energy. Cellular respiration is considered as exothermic reaction. Exothermic reaction is the process whereby energy is released out


What will i learn?

  • Gaseous exchange, respiratory surfaces, transport of gases, concept of respiration, types of respiration
Requirements
  • Biology book or notes, exercise book, silent room for studying, a pen and a pencil
Curriculum for this course
7 Lessons 01:21:03 Hours
Gaseous exchange
4 Lessons 00:37:24 Hours
  • Concept gaseous exchange
    Preview 00:13:53
  • Gaseous exchange in the lungs
    00:10:03
  • Factor affecting rate of gaseous exchange
    00:04:45
  • Gaseous exchange in plants
    00:08:43
Respiration
3 Lessons 00:43:39 Hours
  • Respiration and its types
    00:09:32
  • Differences between aerobic and anaerobic respiration
    00:06:44
  • Factors affecting respiration and diseases of respiratory system
    00:27:23
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About instructor

Dr. Mlelwa

Dr. Mlelwa is an experienced online tutor in biology and chemistry from ordinary level to advanced level. His highest level of education is two years of doctor of medicine (MD) at Muhimbili university of Health and allied science in from Nov 2018 to Sept 2020. There after he failed to continue with Doctor of Medicine Studies due to several reasons which are out of scope of this description. He started online teaching since January 2020 in his YouTube channel (Dr.Mlelwa Lectures) by that time he was still a medical student dreaming to become one among the best tutor in medical studies, that's why he called the channel Dr. Mlelwa Lectures, comparing to Dr. Najeeb Lectures who was one of his role mode. His good performance, being the second best boy in advanced biology examinations national wise in 2018, made him one among most interesting online tutor, having influence to different students inside Tanzania as well as abroad.

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Naitwa Helbeth Issack Mlelwa. Siku ya ijumaa, March 13, 1998, historia na kumbukizi za wazazi wangu zinasema kwamba ndio siku ambayo nilizaliwa na nafsi yangu ikaonja pumzi ya duni...
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