Science(Form 2) - Simple Note of Topic Two

Helps in regulation of body temperature, prevents water loss, and protects the body from the outside world.

Warms the skin helping improve the circulation in the face also helps dry out any blemishes on the skin.

Carbohydrates, fats and proteins are three energy-yielding nutrients. They can also be called macronutrients. Carbohydrates are energy-yielding nutrients because they provide four kilocalories per gram. Carbohydrates can include starch and sugar. Fats or lipids can provide nine kilocalories per gram. They are a form of energy that is concentrated. Proteins provide four kilocalories per gram. When someone eats these three macronutrients and they do not use energy right away, it is stored as fat in the body. If someone is very active, they will use the macronutrients as their energy. If someone takes in an insufficient amount of protein, the person will store it but will then make the person lose body weight because it

also provides warmth, which is especially important where it gets cooler in the night or in

in the airways and prevent blood vessels from leaking fluid into the airway tissues. By reducing

22. The function for the hypodermis is the it’s used as a type of insulation and padding.

Your skin has two layers. The outer layer is called your epidermis. It's made up of epithelial cells. The main purpose of your epidermis is to protect your body from germs and from getting injured. If we didn't have an epidermis, we'd be sick all the time, and any little cut would hurt extremely bad. On

The skin is one of the body’s largest and multifunctional organ. Depending on body size and mass it can weigh between 7 to 22 pounds (1). The skin’s roles are: protection from microbes and harmful substances, thermoregulation and sensation receptiveness of touch, heat and cold. The skin consists of three layers: the epidermis, dermis and the hypodermis. The outermost layer of skin, the epidermis, provides a waterproof barrier and consists of melanocytes. Melanocytes produce and store the pigment melanin which creates skin tone. Underneath the epidermis is the dermis; it contains tough connective tissue, hair follicles and sweat glands. The dermis has an arrangement of nerve fibers and blood vessels. Blood vessels carry nutrients and oxygen to the cells of the dermis and the epidermis, which are avascular (2). The

Step 2.) With adding the sulphuric acid it was used as a catalyst. This resulted in the experiment being completed at a faster rate which reduced the amount of time that we were required to wait for the experiment to finish. This is due to the fact that the sulphuric acid allows the particles to move at a faster rate, allowing more kinetic energy to be made. By the particles then moving at a quicker pace it increases the amount of successful collisions, helping to increase the rate of the experiment. In this step I also added some anti bumping granules. This helps the solution to boil gently at a decent pace, reducing the risk of any glassware cracking or smashing. The anti-bumping granules also prevents the reaction from vigorously boiling over and possibly burning you.

The vertebrate integumentary system is responsible for protection and thermoregulation. The skin covers the human body and also has appendages like hair and nails that all serve to protect the body from damage. The outer layer of the skin, the epidermis serves as a water resistant barrier protecting the body from absorption and leaking while we are swimming or when it is raining. This maintains homeostasis. This means that when we submerge ourselves in water we do not fill up with water and we also do not leak water. The skin serves to protect the body against pathogens and even damaging UV radiation too. The blood vessel and nerves in the dermis serve to warn us when we are in danger by signaling pain when the sun beats too much on a body

Protecting respiratory surfaces from dehydration, temperature changes, and other environmental variations. Also, defend the respiratory system and other tissues from the invasion of pathogens.

Our last stop on the tour is the glands. There are three types of glands in the skin: sudoriferous glands, sebaceous glands and ceruminous glands. These glands perform two major purposes: to regulate body temperature through sweating and to protect the skin from bacterial and fungal infections through the production of sebum. Sebum also is a lubricant for hair follicles and the skins surface. Ceruminous glands are only located in the dermis of the ear canals were they produce cerumen. This cerumen is a waxy secretion that protects the ear canal from foreign bodies while also lubricating it.

Given the ingredients used for these solutions, they help reducing excess oil from your skin.

6. It must be able to keep the skin hydrated and moisturized to avoid it getting dry. Dry skin is easily irritated and damaged that is why it is very important that the treatment is able to prevent this from happening or else it would basically be pointless to undergo that

1.To protect shoes or bootsSolid wax (Dominated by Weatherpruf), since the wax fills pores and holes on the leather, making it more water resistantNo growth expected