Organisation Flashcards
cells
all living things are made of
all living things are made of
cells
Tissues
Similar cells working together
Similar cells can work together to form
Tissues
Organs
Made up of different types of tissues grouped together
Made up of different types of tissues grouped together
Organs
Organs systems
Organs work together to perform a particular function
Organs work together to perform a particular function in
Organ systems
Organism
Organ systems work together to form
Organ systems work together to form
Whole organisms
The three main food groups
Carbohydrates and protein and lipids
Carbohydrates
Energy
Protein
Growth and repair
Lipids
Energy store/warmth
Food group for energy
Carbohydrates
Food group for growth and repair
protein
food group for energy store/warmth
Lipids
Enzymes
Large proteins/biological catalysts/speeds up the rate of chemical reactions 
Large proteins/biological catalysts/speeds up the rate of chemical reactions
Enzymes
Active site
A shape that allows enzymes to bind to substrate
A shape that allows enzymes to bind to substrate
active site
Denatured
shape of active site is damaged so no longer fits substrate
Substances the body can make from products of digestion and glucose produced in respiration
New carbohydrates proteins and lipids
Amylase is produced in
Salivary glands, pancreas and small intestine
Proteases are made in
Stomach, pancreas and small intestines
Lipases are made in
Pancreas and small intestine
Bile is produced by … and stored in …
Liver and gallbladder
Function of bile
Speeds up action of lipases by neutralising hydrochloric acid from stomach and emulsifying fats
food test
starch - iodine - black
glucose - Benedict’s - brick red
protein - Biuret - purple
lipid - ethanol - cloudy
investigation steps of pH with amylase
- iodine on each depression on spotting tile
- 1cm buffered pH solution in test tube
- 1cm amylase
- 2cm starch
- start clock
- every 10 secs drop mixture in next depression
- time until iodine stops turning black
