Respiratory System

By: Nathania Rizky Febrita / 3SC2

Respiration is the process of breaking down the energy from the food

Oxidation is the process when the breaking down of food is combined with

Oxygen

Formula

Sugar + Oxygen Carbon Dioxide + Water + Energy

C6H12O6 + 602 6CO2 + 6H20 + energy

Energy

Usage:• Active transport• Cell division and growth• Building up proteins• Contraction• Transmitting nerve impulses• Heat

Anaerobic

Without Oxygen

YEAST : Glucose – Alcohol + CO2 + Energy

MUSCLE : Glucose -> Lactic Acid + Energy

Gaseous Exchange

• Gas exchange surface, the part which oxygen enters the body

• Properties:

Properties of Gaseous Exchange Surface

THIN

Close to efficient transport system

MOIST

Large surface area

Good supply of O2

Organs

Upper Tract

•Nose•Nasal cavity•Sinuses• Pharynx

Lower Tract

•Larynx•Trachea•Bronchial tree•Lungs

Alveoli features

Very thinExcellent transport

systemLarge surface areaGood supply of O2

Inspiration

1. Rib cage is pushed upwards2. Volume of thorax increases3. Less air pressure inside4. Diaphragm is flat5. External intercostal muscle contracts6. Internal intercostal muscle relax

Expiration

1. Rib cage is pushed downwards2. Volume of thorax decreases3. Higher pressure inside4. Diaphragm contracts5. External Intercostal muscle relax6. Internal Intercostal muscle contracts

Aerobic Respiration Anaerobic Respiration

Oxygen No Oxygen

No alcohol or lactic acid

Alcohol or lactic acid

Large amount of energy

Small amount of energy

Oxygen debt, borrowed some energy without oxygen (muscle).

Difference

Respiration, series of chemical reaction which happens in all living cells. (usually with O2)

Gaseous exchange, exchange of gas across a surface.

Breathing, a muscular movement to keep the gaseous exchange process supplied with O2

Smoking = BIGGEST KILLER

1.Nicotine• Stimulant• Heart rate and blood pressure• Addictive

2.Tar• Absorbed by cells (bronchioles)• Irritant

3.Carbon Monoxide• Affect the blood• Pregnant mother affected

THANKYOU