Cells and Systems Topic 6-7. By: Sam Wells, Dimpi Shah and Manvi Thakore . Driving Question.
By: Sam Wells, Dimpi Shah and Manvi Thakore
The dawn of the 21st century has helped and hindered our health. It has helped us in that are more medicine and technology to keep us healthy. The many new technologies can monitor and improve our health. New medicine helps more ailments, and can greaten the lifespan. On the other hand, there are many more pollutants, such as smoking and CO2 fumes. The widespread fast and processed food is also negative, making fatty and salty food cheap and available. Many people are overweight or obese and this extremely increases the risk of many diseases. All and all, this century is both good and bad for our health.
Our Digestive System is where our food is broken into smaller pieces which can be used by cells. There are many different parts in the digestive system which is involved in the Digestion process. Some of the parts are:
Digestion is a really important process in the body because what you eat and drink is broken down into little pieces so the body can use those tiny pieces for energy and build and provide energy to the cells. Digestion begins in the mouth by chewing and swallowing food and ends up at the small intestine.
The parts in the digestive system are:
The main organs of the respiratory system are the lungs. They exchange gases, the carbon dioxide being collected by red blood cells then exhaled and oxygen inhaled which then travel, again via blood cells, to the cells. The
trachea, more commonly known as the
windpipe, is used to filter the air that then
enters the bronchi. The bronchi are two
tubes that diverge at the trachea and go
through the bronchioles, the even smaller
branches of the bronchi. The alveoli are
small air sacs that are attached to the
The alveoli inflate and deflate as we breathe, and are used in the exchange of oxygen. The larynx, also known as the voice box, is a tube-shaped organ that holds the vocal cords. It allows us to speak, and works to help us swallow and breathe. Finally, the diaphragm is a dome-shaped wall of muscle at the bottom of our lungs that expands and contracts as we breathe. It is also the major muscle used for breathing.
There are many reasons which states the benefits of being a multi – cellular:
The organization in multi – cellular organisms is:
Cells Tissues Organs Systems Organism
Cells reproduce similar cells like them and they start grouping each other to form a tissue. There are 4 different types of tissues in our body. The 4 tissues are epithelial tissue, connective tissue, muscle tissue and nervous tissue. There are also sub-classifications of tissues like the three types of muscle tissue - skeletal muscle, smooth muscle and cardiac muscle. Various types of tissues are grouped together to form an organ. For example the stomach. The stomach contains epithelial tissue which lines up the stomach, connective tissue which hold the shape of the stomach, nerve tissue which co-ordinates activities and the muscle tissue to move and mix stomach contents. Organs which work together make up systems like the digestive system. Some of the organs in the digestive stomach, small intestine and large intestine. Many systems in living organisms make up the organism just like the respiratory system, circulatory system and etc., which work together to make the organism live.
One of the most common respiratory disorders is asthma. It is when the bronchial airways are narrowed, causing coughing and difficulty breathing. Many things, some of which include allergens, infections, and air pollution, can cause it. It typically begins at an early age, however it can occur at later stages. Another extremely serious one is pneumonia. Bacteria can cause it, and it is when the lungs
inflame, the alveoli are filled with
inflammatory cells, and the lungs
become solid. It can be lethal, if
not appropriately treated in time.
One of the disorders of the digestive system is gallstones. They form when things in the bile, such as cholesterol, form stones or when the gallbladder fails to empty properly. They are only an issue if they block a duct. They are more likely to occur in overweight people and those trying to lose weight quickly. Another is irritable bowel syndrome, which causes bloating, fullness, abdominal pain, and gas. The causes are mostly unknown, though a known one is after an intestinal infection. It can also cause diarrhoea and constipation.
One disorder of the circulatory system is heart attacks. They occur when the blood flow to one part of the heart is blocked by a build-up of plaque and is damaged or dies. The plaque is made of cholesterol and other cells. There are many factors that can lead to a heart attack, and the cause is not always known. Atherosclerosis is also formed by plaque build up. It is a hardening of the arteries and can block them, causing problems throughout the body. It can cause tissue damage or death due to blood and oxygen starvation. This can cause heart attacks or stroke.
Your respiratory system can be kept healthy by avoiding smoking, as smoking weakens and damages your lungs. Daily exercise that gets you breathing hard also helps to ‘exercise’
your lungs. Keeping a balanced diet that
is low on salt and fat helps keep your
lungs healthy. Finally, a yearly
check-up with a doctor is always a
To keep your digestive system healthy, it all hinges on a healthy diet. Eat both insoluble and soluble fiber and lots of it, as this lets food move easier through the digestive track. Lean meat is your friend, but avoid fatty foods. Probiotics also help, as does keeping to an eating schedule.
Then there are the usual suspects,
exercising and drinking water.
Things to avoid are stress and bad
habits such as smoking or alcohol.
Steps to keeping a healthy
circulatory system are similar to
the others. Exercise regularly
and eat healthy foods to ease its
work. Don’t smoke, as this damages
your heart, and keep a healthy weight as being too heavy significantly increases your chance of heart problems.
“Almost 60% of all Canadian adults and 26% of our children and adolescents are overweight or obese.”
Why are many Canadians obese?
What can we do, government do, and other Canadians do to prevent this?
I think, not only Canadians should keep a healthy body everyone should prevent being unhealthy. There are many different ways people could resolve their mistakes. People should start seriously keep a healthy body to prevent any types of diseases.
Have we ever thought what caused people to be overweight or obese?
Things which cause many people to be overweight is:
There are numerous ways to stay healthy like:
There are numerous ways that the country can help Canadians. Some ways are:
The school board can:
The 3 components we are going to talk about are:
The Plasma carries nutrients, waste products, hormones, and blood cells. Plasma is a yellowish fluid that carries the blood cells,it makes 55% of our blood supply.
White Blood Cells do a multiple of functions. Some of the functions are:
The blood transports food(nutrients), waste products, heat, glucose, water, and hormones.
Functions of some things which blood transports
Water = Hydrates cells
Sugar = Powers cells
Oxygen = Powers cells
Proteins = Builds cells/ Reinforces Cells
Hope you have learned and enjoyed our slideshow!