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Chapter 14 – Respiration
This Chapter 14 talks about:
- Human respiratory system
- The human respiratory system is a gas exchange system that delivers oxygen to the body and removes carbon dioxide. It is made up of the nose, pharynx, larynx, trachea, bronchi and lungs. The air passages of the respiratory system are lined with mucus membranes that trap inhaled particles and pollutants, such as dust and pollen.
- Mucus membranes are also coated with cilia that are constantly moving, pushing contaminants out of the lungs as it moves up to the throat. The trachea branches into two bronchi that distribute air to each lung. Within each lung, there are smaller bronchi called bronchioles that divide into alveoli where gas exchange occurs between capillaries and air sacs.
- The mucous membranes in the lungs trap particulates in the air we breathe in while cilia move mucus out of our mouth and nose. Finally, exhaling expels carbon dioxide from our bodies.
- It also removes carbon dioxide, which forms as a waste product from chemical reactions in the cells, from the blood and releases it into the environment. There are three major parts of the respiratory system:
- -Airways: tubes that carry air in and out of the lungs
- -Respiratory muscles: muscles that help with breathing
- -Alveoli: tiny air sacs where oxygen exchange takes place
- Control of Breathing
- Respiratory disorders
- Mechanism of transport of disorders
- Lung volumes and capacities
- Much more!
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Chapter 15 – Homeostasis
This Chapter 16 talks about:
- Homeostasis
- Osmoconformers
- Osmoregulation
- Positive feedback
- Much More!
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Chapter 16 – Support and Movement
This Chapter 16 talks about:
- Human skeleton
- Disorders of skeleton
- Muscles
- Much More!
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Chapter 17- Nervous Coordination
This Chapter 17 talks about:
- Nervous system of man
- Neurons
- Nerve impulse
- Synapse
- Much More!
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Chapter 18- Chemical Coordination
This Chapter 18 talks about:
- Hormones: The chemical messenger
- Endocrine System of man
- Feed back mechanism
- Much more
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Chapter 19 – Behaviour
This Chapter 19 talks about:
- Nature of behaviour
- Innate behaviour
- Learning behaviour
- Social behaviour
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Chapter 20 – Reproduction
This Chapter 20 talks about:
- Male reproductive system
- Female reproductive system
- Menstrual cycle
- Disorders of reproductive system
- Sexually transmitted diseases
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Chapter 21- Development and aging
This Chapter 21 talks about:
- Embryonic development
- Control of development
- Birth and nursing
- aging
- Much more
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Chapter 22 – Inheritance
This Chapter 22 talks about:
- Blood group system
- Sex linkage
- Sex determination
- Much more
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Chapter 23 – Chromosome and DNA
This Chapter 23 talks about:
- DNA replication
- Mutation
- Gene expression
- Regulation of gene expression
- Much more
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Chapter 24 – Evolution
This Chapter 24 talks about:
- Evidence of evolution
- The evolution of the concept of evolution
- Darwinism
- Lamarckism
- Much more
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Chapter 25 -Man and Environment
This Chapter 25 talks about:
- The flow of energy
- Population Dynamics
- Ecological succession
- Human impact on environment
- Much more
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Chapter 26 -Biotechnology
This Chapter 26 talks about:
- Gene cloning
- DNA Analysis
- Tissue culture
- Genome maps
- Much more
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Chapter 27 -Biology and Human Welfare
This Chapter 27 talks about:
- Animal husbandry
- Home gardening
- Roles of microbes in human welfare
- Much more
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