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Tea from the teabag spreading out evenly

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Muhammad Farid Bin Mohamad Jamil (Group 4)

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Muhammad Farid Bin Mohamad Jamil (Group 4)

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Good day everyone, my name is Muhammad Farid Bin Mohamad Jamil. I would like to share with everyone the example of biochemistry that I can find around me at the moment. From the picture above, you guys can see that I had brewed nice tea with a teabag.
As you guys can see, the teabag contains a high concentration of tea leaves. When water is added, the tea leaves move and trigger diffusion Diffusion can be defined as the movement of a substance from high concentration to lower concentration.
From the pictures, we can imply that the concentration of tea leaves in the teabag is high while the water in the cup is none. This allows the tea particles to pass through the porous tea bag to move from the tea bag to the water.
Moreover, the hot water causes the diffusion to move faster as the particle receives the heat energy into kinetic energy.
Thank you for spending your time reading my post. Have a nice day!

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Jeslina Carren Ak Rogerlin 79662 (Group 4)

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Jeslina Carren Ak Rogerlin 79662 (Group 4)

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Hello, I'm Jeslina. I know most of you know what this picture tells you. These crackers usually we eat for breakfast because they can make us full.

For your information, wheat crackers are a carbohydrate and give energy to us. Carbohydrates are big in size while glucose is a small particle so it is easily absorbed into our body. Breakdown of food starches into maltose ( disaccharide ) by the salivary enzyme amylase. The disaccharides are broken down into monosaccharides by maltases (enzymes).

This is a little bit of information on how wheat crackers can absorb into our bodies. Thank you.

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Hi everyone! I'm Athirah Syazwani and I want to share with you guys the example of biochemistry in our daily lives which is... washing our hands! So, when I'm washing my hands with soap, it reminds me of Biochemistry! xD
To start, soap molecule has two parts which are hydrophilic and hydrophobic. The molecules of soap arrange themselves in micelle formation and trap the dirt at the center of the cluster. These micelles remain suspended in water like particles in a colloidal solution. During cleaning, the hydrophobic tails dissolve in a droplet of oil/sweat, while the hydrophilic heads face out into the surrounding water.

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Hello guys, my name is  Lucy. We were asked to describe our surroundings at home, which reminded us about Biochemistry. The surrounding at my home that reminded me of biochemistry is my green waste compost. Maybe from the short video, you can not see where is the green, but I can assure you that all the ingredients used in my compost are made up of green waste: dry leaves, soil garden, and green waste from my kitchen.

Composting is the decomposition of organic matter by microbes into simpler compounds. For instance, composting can break down C-organic and N-organic compounds into simpler C and N compounds.

Composting can be done in various ways, including aerobic and anaerobic processes. Because the bacterial activity is higher under anaerobic conditions than in aerobic conditions or with sufficient oxygen supply, the anaerobic process will produce compost faster.

Composting is vital in agriculture because it is useful in fertilising plants so that the soil that has been processed and given compost can supply nutrients to the soil. Furthermore, composting is more beneficial for processing agricultural waste, allowing for better environmental conditions and the practice of sustainable agriculture.

Lastly, let us save our earth by composting. Thank you for your time reading this.

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Good day everyone, my name is Tiffany Emilly and I would like to share with you guys the example of biochemistry that I can find at home. So, as you can see from the picture above, the example that I was talking about is a facial toner! Before I start explaining how it is related to biochemistry, I would like to put a quick disclaimer: this picture is not sponsored by the brand- Simple.

For all the people who are really into skincare, you are probably very familiar with toner. Toner is usually applied after facial cleansing with a cotton ball/pad or preferably with clean hands (since the cotton balls/pads can be quite harsh to the skin, it is not recommended to apply toner with cotton balls/pads if you have sensitive skin) every morning and before going to the bed at night. It preps your skin before the moisturiser application.

To start, toner comes in a water-based liquid product that includes ingredients that are essential to your skin; water, hydrogenated starch hydrolysate, Niacinamide and so on. Now, you might be intimidated by these ingredients because of how exotic they sound, but trust me, these ingredients work wonders on your face. Because of these ingredients, toner can remove any remaining dirt and impurities on your face after washing your face. What happened is that the dirt will be dissolved by the toner because of the “like dissolves like” rule. Moreover, toner also restores your skin’s pH level, tightens your pores, and moisturises your skin. When used regularly, your skin will be all refined and silky smooth! (By the way, to choose the best toner, choose the ones that are 100% vegan, alcohol-free and not scented because it allows your skin to recover with more ease and skin irritation is not going to be your bestie anymore ^^)

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Hi guys, I'm Deborah. The picture shown above is an example of biochemistry application in real life. We all have toilets to clean at home, right? What better way than to use a toilet cleaner that does the job well!

The ingredients that make up this product include water, hydrochloric acid, polyoxyethylene lauryl ether, dye and fragrance. Hydrochloric acid is a strong acid and it is used in toilet cleaners because it is highly corrosive which gets rid of the stubborn stains in the toilet bowl. Next, polyoxyethylene lauryl ether is a non-ionic surfactant that foams easily and acts as a really good detergent. It is also easy to rinse the toilet cleaner once you're done. Do take note that these are harsh chemicals so rinse it off with water if it gets on your skin.

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Hi, I am Yiizamy. I would like to showcase the wonders of water that I have learnt in this second quest.

It is only fair for me to talk about the properties of water as we all know its importance in our daily life.

Have any of you wonder about why when water inside a bottle that is full in capacity "explode" when it is frozen? Or why is the ice cubes are floating on top of the water but not sinking?

The picture above shows a cup of tea containing ice cubes whereby the ice cubes are floating on top of the water. Although this is not a very good example of showing the properties of water due to the impurities present in the water which is the ingredient of tea, my purpose is to talk about its properties so please lets assume if the tea is pure just like the ice cubes are.

The freezing of water causes its molecules to rearrange themselves in a crystalline structure. This structure causes the ice cubes to have less density than the liquid state of water as it takes up more volume with the exact same amount of mass.

Formula of density: mass/volume

This also explain the phenomenon whereas a fully filled water bottle "explodes" when it is freeze inside the freezer. This is due to the water becoming ice will lead to the expansion of itself and thus leading to the bottle to "explode".

Please do watch the link below to get an idea of what I am talking about:

https://media.sciencephoto.com/image/c0435380/800wm/C0435380-Liquid_and_Frozen_Water_in_a_Bottle.jpg

That is how the properties of water makes me relate biochemistry in my daily life. Thank you!

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A hair conditioner that repairs hair with keratin.

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Hello, my name is Chelsea from G01. I would like to share a product that I use daily and is closely related to biochemistry. This is a hair conditioner that helps to repair my hair with keratin.

Keratin is one of the fibrous proteins found in our body especially hair and nails. It is a scleroprotein and is inert to most chemicals. However, when the hair is prone and exposed to damage such as heat, chemical dyes and bleach, keratin in the hair will be weakened. This is followed by severe breakage and hair loss.

There are foods we can eat to promote the production of keratin in our hair. For instance, eggs, salmon, onions, sweet potatoes. In addition, we should avoid putting too much pressure and heat onto our hair.

But the good news is, with L'Oréal Paris Elseve Total Repair 5 Restoring Conditioner, you can achieve strong and healthy hair in days even if you heat and dye your hair often. Say yes to hairstyling and bye to hair breakage.

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Hi, my name is Phang Cheng Yee. So since the second quest of PUBG was to showcase the wonders of Biochemistry in our homes, I just have one. Don't be afraid of the picture above, although it's kind of scary at first sight. So, this was originally a Chinese sweet dessert known as "nian gao", usually served during Chinese New Year. The usual thing in Chinese families is they often leave this dessert to rot on its own, if left uncooked during the whole period of Chinese New Year. Yes! It's a common thing in Chinese households, but no, we did not intend on leaving it to rot as well. Anyways, we can see the black mould happening on the dessert was the maturation of fungi, which was initially white fungus. After some time, I have noticed the change in colour of the fungus as this shows the growth of it to produce spores in the plastic container. Fret not, the harmful spores are contained in the plastic container so it was disposed properly afterwards, but luckily I managed to take a picture of it to witness the wonders of Biochemistry in which this case, the growth of multicellular organisms living on food. Thanks for your reading on this lengthy post!