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Friday, July 26, 2019

Aim. To test if a sample of food contains complex sugars

method.
1. place about 2 mL of the sample in a test tube
2. Add 3-55 drops  of iodine and mix it

Results. if it's complex sugar (i.e starch) are present the iodine solution will change from brown colour to blue/black if the iodine solution doesn't change colour the no complex sugars are present

Did it work? yes, it showed us if the food contains complex sugar.


Monday, July 22, 2019

ECOLOGY

ECOLOGY

Describe the five kingdoms of living organisms...

Bacteria
Single-celled organisms without a nucleus

Protoctista
a single-celled organism with a nucleus

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

Plant

Multi-celled with cell walls and can carry out photosynthesis


Animals
Multi-celled with no cell walls

Define the term habitat and describe the habitat of the range of organisms
A natural home for animals/ plants

- monkey, forest
Image result for monkey
- Lion, live in grasslands
Image result for lion
- elephants, grasslands
Image result for elephants