Bacteria

What is bacteria?

Single-celled organism without a nucleus. They can be dangerous, such as when they cause infection, or beneficial, as in the process of fermentation (such as in wine) and that of decomposition.

What do bacteria need to survive?

Bacteria's are almost the same as humans they need the following to survive:

-Oxygen

-Moisture

-Food

-Neutral PH Levels

-Tempereture

-Time

Give 3 examples of how we avoid spreading bacteria?

-Make sure all food is covered or stored correctly. (Do now leave out in the open for longer than 2 hours

-Food is stored in airtight containers (No holes)

-Preserving food with vinegar, salt and lemon affects the growth. (Clean surfaces)

-Foods are stored in freezer -18 or fridge.

-Food is left to cool prior to going in fridge to avoid condensation.

What does cross contamination mean and what it's effect on you?

the process by which bacteria or other microorganisms are unintentionally transferred from one substance or object to another, with harmful effect.

Food Testing

Testing for Simple Sugar

Aim

To test a sample of food to determine whether it contains simple sugars.

Equipment

-Bunsen Burner

-Test Tube

-Test Tube Tongs

-Benedict's Solution

-A sample of food

-Safety glasses

Method

-Place about 2 ml of the sample into a test tube and then add 5 drops of Benedict Solution.

-Heat with a Bunsen Burner until it changes colour. Do not boil.

Results

A positive test for simple sugar results in the Benedict Solution changing from green colour to an orange colour.

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Conclusion

Orange reacted to benedict solution, therefore, it is simple sugar.

Testing Complex Sugar

Aim

To test if a sample of food contains complex sugars.

Equipment

-Test Tube

-Food Sample

-Iodine Solution

-Bunsen Burner

-Test Tube Tongs

Method

-Place about 2 ml of the sample in a test tube.

-Add 3-5 drops of iodine and mix.

Results

If complex sugar is present the iodine solution will change from a brown colour to a blue-black colour.

Conclusion

Bread reacted with the iodine solution so that means it is complex sugar.

Testing for Protein

Aim

To test if a sample of food contains protein.

Equipment

-Test tube

-Sodium hydroxide (NaOH)

-Copper sulfate (CuSO)

-Food sample

Method

-Place about 2 mL of the sample into a test tube and add 5 drops of sodium hydroxide.

-Add 5 drops of copper sulfate.

-Shake the test tube gently from side to side.

Results

If the solution remains blue, then no protein is present. If the solution changes to a violet colour then protein is present in the sample.

Conclusion

The egg reacted to the solution, therefore, it has protein in it.

Testing for Lipids

Aim

To test if a sample of food contains lipids.

Equipment

-Absorbent paper

-Food sample

Results

If it becomes translucent (almost see-through) and does not dry out then fat was present in the sample.

Conclusion

The cheeseburger was squashed in between the absorbent paper that means there are lipids in it.

Maori Medical Research

 Learning Intention: To understand the life of Maori prior to connection to today's society.

What was your research about? It was finding out how Maori heal the ill people before the European came to New Zealand.

Two things you found interesting? -That Maori also took care of how you feel not just your physical pain.                                                                                                                                                                                                                       -They also did internal treatment.

Two things you thought you did well? -The research.                                                                                                                                              -Writing out the presentation.

Something you want to do differently next time? I could have drawn a picture on my picture instead of just leaving an area blank.

Plant Kingdom

The Five Kingdom

Bacteria

Single-celled organism without a nucleus.

Protoctista

Single-celled organism with a nucleus.

 Fungi

Multi-celled with cell walls but cannot -carry out photosynthesis.

   Plants

Multi-cellular with cell walls and can carry out photosynthesis.

   Animals

Multi-cellular with no cell walls.

The Kingdoms are subdivided into phyla, then classes, orders, families, genera and species. The smallest classification contains only one type of organism, a species. A species is defined as a group of the similar organism capable of breeding with each other and producing fertile offspring.

Plant - Organism that produces their own food by the process of photosynthesis.

Vascular system - The vessels and tissue that carry or circulate fluids.

Seeds - Embroyonic plant enclosed in a covering called the testa and usually contains some stored food.

Spores - A reproductive unit capable of developing into another such plant without sexual fusion

Flowers - The reproductive organs of some plants that are typically surrounded by brightly coloured petals.

Cones - A woody reproductive structure that contains seeds.

Sexual fusion - Reproduction involving the combining of a male (sperm) and female (egg) gametes.

Resilience

Learning Objective

Communicate what you have learnt and how you will apply what you know to the Year 9 Business Kete....

What did you learn about?

I learnt what it means to be resilience and my own meaning to it which is pretty much the same as the internet definition.

What it means to me?

Being able  to stand back up and go on to finish whatever objective you have and not give up.

The Internet definition?

The capacity to recover quickly from difficulties;toughness.

My favourite saying connected to resilience..... 

                                                           "Quote"

                                                    "Choosing to 

                                                          bounce back 

                                                 from challenges"

How did you relate to the video "Who Moved My Cheese"

The video "Who Moved My Cheese" is about Resilience it taught me what it really means to be resilience and how bad thought can lead to getting your charisma down and not being able to do anything and also always expect the worse.

How can you apply your new knowledge to the Business Kete?

During the Business and Enterprises Kete I will be able to stay resilience I will do this by when we don't get sales but I will stay resilience and get our stuff bought.

I Wonder (8)

I Wonder what is The Great Wave off Kanagawa?

First off I wanna explain what The Great Wave off Kanagawa is. It is a woodblock print made by an old artist in Japan. It is known by different names like The Great Wave or simply The Wave and the name means "Under the waves off Kanagawa." The Famous artist was an old person named Katsushika Hokusai supposedly born on October 31st 1760 and was famous for Ukiyo-e paintings. Ukiyo-e paintings are a Japanese genre art which usually has Kabuki actors and Sumo wrestlers in it, the scenes from this paintings are usually from Japanese folk tales, history, travel scenes and landscapes with flowers or some creepy looking ones. Ukiyo-e translates to "Pictures of the floating world"