Organisition Flashcards
What are specialised cells
Cells that are designed to carry out a particular function
What is differentiation ?
Development of a multicellular organism
What is a tissue
Group of similar cells working together to carry out a particular function
What is an organ
Group of different tissues working together to perform a certain function
What is an organ system
Group of organs working together to perform a particular function
Name 3 examples of tissues that are in humans?
- muscular tissue
- glandular tissue
- epithelial tissue
Give 3 examples of an organ
Stomach
Liver
Heart
Give 3 example of organ systems
Digestive system
Circulatory system
Nervous system
What is a catalyst
Substance which increases the Rate of an reaction without being changed or used up in the reaction
Give an example of a biological catalyst
Enzyme
What is the enzymes optimum temperature
Where the enzyme is most active and works at its best
What two things change how fast an enzyme works
Ph and temperature
What breaks down proteins and what is product
Proteins are broken down by protease
The product is amino acids
What breaks down starch and what is the product
Starch is broken down by carbohydrase/ amalayse . The product is sugars
What breaks down lipids and what is the product
Lipids are broken down by lipase and the products are glycerol and fatty acids
What is the purpose of bile
Bile neutralises the stomach acids and emulsifies fats
Where is bile stored and produced and where does it work
Stored in the gall bladder . Produced in liver and works in the small intestine
What is the test for sugars
Benedict’s test for sugars - add Benedict’s solution to tube and pace in a water bath the color will change from blue to yellow if sugar is present
What is the test for starch
Iodine solution turns from orange to black
What is the test for proteins
Birurets turns from blue to purple
What is the test for lipids
Sudan 111 test - if fats are present the mixture will super ate into two layers and the top will go bright red
