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GSCE AQA Biology Topic 2- Organisation Exam With Complete Solution
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GSCE AQA Biology Topic 2- Organisation Exam With Complete Solution...
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GSCE AQA Biology Topic 2- OrganisationExam With Complete Solution
What is the process known as when cells become specialised for a particular job? -
Answer Differentiation
When does differentiation occur? - Answer During the development of multicellular
organism
What do specialised cells form? - Answer Tissues
What do tissues form? - Answer Organs
What do organs form? - Answer Organ systems
What does muscular tissue do? - Answer Contracts to move whatever its attached to
What does glandular tissue do? - Answer Makes and secretes chemicals like enzymes
and hormones
What does epithelial tissue do? - Answer Covers some parts of the body, such as the
inside of the gut
What is an organ? - Answer A group of different tissues that work together to perform a
certain function
What 3 tissues make up the stomach? - Answer Muscular, glandular and epithelial
What 5 things make up the digestive system? - Answer Glands, stomach, small
intestine, liver and large intestine
Define catalyst - Answer A catalyst is a substance which increases the speed of a
reaction, without being changed or used up in the reaction
What do enzymes act as? - Answer Biological catalysts
How can you make enzymes act faster? - Answer Increasing the temperature
What does it mean when an enzyme is denatured? - Answer The active site is
permanently changed, meaning it cannot break down the substrate
, What model is used to describe enzymes? - Answer The Lock and Key model
As well as temperature, what affects enzymes? - Answer pH
What is the equation for rate? - Answer Rate= 1000/time
What do digestives enzymes break down? - Answer Big molecules
What do carbohydrases convert carbohydrates into? - Answer Simple sugars
What 3 places is amylase made? - Answer The salivary glands, pancreas and small
intestine
What do proteases convert proteins into? - Answer Amino acids
What 3 places is protease made? - Answer The stomach, pancreas and small intestine
What do lipase convert lipid into? - Answer Glycerol and fatty acids
Where is lipase made? - Answer The pancreas and small intestine
What is the function of bile? - Answer It neutralises stomach acid and emulsifies fats
Where is bile made? - Answer The liver
Where is bile stored? - Answer In the gall bladder
What does it mean by bile emulsifying fats? - Answer Breaking down fat into tiny
droplets, giving it a bigger surface area and speeding up digestion
What is the function of the salivary glands? - Answer They produce amylase enzyme in
the saliva
What is the function of the liver? - Answer It is where bile is produced which neutralises
stomach acid and emulsifies fats
What is the function of the gall bladder? - Answer It is where bile is stored before it is
released into the small intestine
What is the function of the large intestine? - Answer It is where excess water is
absorbed from the food
What is the function of the rectum? - Answer It is where the faeces are stored before
leaving through the anus
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