Category Archives: Grade 12

How can BC’s waste management system be made more sustainable

By

The article that I read it talks about recycling in Germany, how can they control waste management success really comes down to two things: strong government policy and its citizens embracing recycling. Renewable energy success has come primarily from strong government policy and action.

waste management act is established in 1996, this act applies to anyone that produces, markets or consumes goods and dictates that they are responsible for the materials’ reuse, recycling or environmentally sound disposal. This act particularly targeted producers and encouraged them to focus on one of three waste management strategies: waste avoidance, waste recovery and environmentally compatible disposal.

In other words, businesses need to avoid producing any waste, recycle what they do produce, and anything that can’t be recycled must be disposed of in an environmentally safe way.

the green dot: The Green Dot is just that, a green dot that’s placed on the outside of packaging indicating it must be accepted by recyclers. Depending on their packaging, manufacturers pay a fee to the DSD (Dual System Germany) and are then given permission to place the green dot on their packaging. Companies using the green dot have promised to abide by all of Germany’s recycling laws.

Germany’s recycling culture

The above three policies led to recycling bins being placed everywhere in Germany. Germany has multiple recycling bins, requiring its citizens to do the sorting themselves.

There are six different bins: black for general waste, blue for paper, yellow for plastic, white for clear glass, green for coloured glass and brown for composting.

By pre-sorting their recycling, the German government saves a significant amount of money and also reduces the amount of contamination that can potentially ruin entire batches of recycled material. This process of sorting certainly didn’t happen overnight, but with time it became a habit for German residents and, in fact, a matter of pride.

this is why Germany is leading the EU when it comes to recycling municipal waste.

How sustainable is BC’s Forestry Industry?

By

Renewable B.C. wood products are in demand around the world, with B.C.’s forest industry exporting $13.7 billion worth of forest products in 2016, accounting for 34 percent of all provincial exports. One of the reasons why B.C. wood products are in such demand is that B.C. is a world leader in sustainable forestry.

clearcutting: refers to the complete or nearly complete removal of trees from an area of land.  Clear-cutting is the process of cutting down all trees in an area of forest at once. Topsoil erosion can remove many essential soil nutrients from the area, making it harder for replanted trees to grow.

silviculture: Allow for easier and efficient operations, because it is the simplest method to use. May have lower costs for forestry activities including planning, layout, supervision, harvesting, site preparation, and intermediate treatments. Harvesting may be less expensive due to the higher volume/hectare removal.

Selective Logging: is the practice of cutting down one or two species of trees while leaving the rest intact.

 

Diffusion In Agar Cubes

By
  1. in terms of maximizing diffusion, what was the most effective size cube of you tested? the most effective size cube is 1 cm cubes of maximizing diffusion.
  2. why was that size most effective at maximizing diffusion? what arex` important factors that affect how materials diffuse into cells or tissues? The 1cm cube was the most effective due to it having a smaller surface area than the other cubes, this makes it easier to cover the entire thing. Important factors that affect diffusion in cells or tissues are temperature, material, size and polarity.
  3. if a large surface area is helpful to cells, why do cells not grow to be very large? Surface area affects the volume and if an object has a high volume it will take a greater amount of time to diffuse even though it may have a lot of surface area. This is why cells do not grow very large.
  4. You have three cubes, A, B, and C. they have surfaced to volume ratios of 3:1, 6:2, and 7:3 respectively. Which of these cubes is going to be the most effective at maximizing diffusion, how do you know this? The 7:3 ratio cube will be the most effective at maximizing diffusion because of the balance of surface area to volume. It will have the most effective diffusion out of the three cubes.
  5. How does your body adapt to surface area-to-volume ratios to help exchange gasses? In our body have adapted in order to use large surface area organs that help exchange gases better
  6. Why can’t certain cells, like bacteria, get to be the size of a small fish? Cells like bacteria cannot get to be the size of a small fish because they need to divide in order to keep a good surface area to volume ratio. Additionally, bacteria depend on their organelles for survival whereas larger, multicellular organisms have specialized cells which they can depend on.

 

Ethic of Care

By
  1. What would be needed to create it?    we need to create people stop throwing garbage on the road
  2. What would we have to believe about the environment? How should we see it? we should believe that the environment is getting worst because we throw garbage on the road and it stuck into the water tap and water ut can’t go down
  3. How would we act? – give scenarios. when we have garbages on my hand and I don’t throw it on a road but I will bring it back and throw it in the bin.
  4. What would be different about the world if everyone adopted this ethic of care towards the environment? Benefits and drawbacks? it is different if peoples stop throw garbage and roads will not be dirty it is will be benefits for us and for animals that don’t have to eat plastic
  5. Should we adopt an ethic of care towards the environment? yes we should take care of the environment by  stop throw garbage on roads and start pick it up

Blog log one- business

By

here is the link to the article 

In this article, I interested in this topic about why the company like Amazon will go bankrupt. The Amazon company makes the profit about $3 billion per year but the CEO of Amazon said that the company will go bankrupt. In this article, I love the way how the imagery explanation that the company will not grow that much. The connection that I make is when I have my own business in the future, so  I have an experience that how to prevent my company will not go bankrupt y, and it has to be constantly. It is a fiction story because it doesn’t exist into the Amazon company that it will go bankrupt.

Translation paper model

By
  1. describe the process of translation initiation, elongation, and termination.
  2.     1.1 initiation: the protein synthesized from the information contained in a molecule of mRNA. The start codon in all mRNA molecules has the sequence AUG and codes for methionine. Next, the large ribosomal subunit binds to form the complete initiation complex.
    1.   elongation: Ribosome holds mRNA and allows complimentary tRNA to attach to binding sites. tRNA binds to ‘P’ site and another tRNA binds to ‘A’ site. The binding causes a change, the amino acid lets go of tRNA and bind to neighbouring amino acids
    2. termination:  which occurs when a stop codon arrives in the ribosomal A-site and is recognized by a trans-acting protein
    3. How did today’s activity to a good job of modelling the process of translation? In what ways was our model inaccurate?                    today activity went well and I understood how does the process of translation works.

DNA and Protein synthesis

By

  1. explain the structure of DNA- use the terms nucleotides, antiparallel strands and complementary base pairing?         DNA is a compound consisting of a nucleoside linked to a phosphate group. Nucleotides form the basic structural unit of nucleic acids such as DNA.  antiparallel strands are the term applied to two molecules that are side by side but run in opposite directions. The two strands of DNA are antiparallel. The head of one strand is always laid against the tail of the other strand of DNA. complementary base pairing is the phenomenon wherein DNA guanine always hydrogen bonds to cytosine and adenine always bind to thymine.2.
  2. how does this activity help model the structure of DNA? what changes could we make to improve the accuracy of this model? be detailed and constructive. this allows us to represent each part of the DNA strand by using a physical object that makes us understand how to place the DNA structure                                                                                            1. When does DNA replication occur?
    DNA replication occurs before cell division during the interface of mitosis after the check for size efficiency.                 2. Names and describe the 3 steps involved in DNA replication. Why does the process occur differently on the leading and lagging strands?  first is unwinding which is when the DNA unfolds and unzips when the two H bonds let go. Then there is the Complimentary base pairing step which is when nucleotides move into place and form H bonds with matching the stand. Lastly, there is Joining where DNA ligase attaches to the lagging strand.                   3. What did you do to model the complementary base pairing and joining of adjacent nucleotides steps of DNA replication? In what ways was this activity well suited to showing this process? In what ways was it inaccurate?            We showed H bonds attaching to another H bond. And we showed the red long candy as the DNA ligase going on the lagging strand. It is hard to determine which is lacking strands