organisations Flashcards
Name one of the organs in the digestive system where digestion takes place.
stomach or ‘small intestine’
Which organ system coordinates the actions of the body?
nervous system
The circulatory system, the nervous system and the digestive system are all examples of what?
organ systems
Cells form tissues. Tissues form __________. What word completes the sentence?
organs
What type of tissue produces enzymes?
glandular
What type of tissue produces digestive juices in the stomach?
glandular
What type of tissue is found in the stomach and is used to churn its contents?
muscular
What is the name given to biological catalysts?
enzymes
Enzymes can be affected by acidity and alkalinity. What name is given to the scale that measures acidity and alkalinity?
ph scale
What enzyme is produced in the salivary glands?
amylase
What is the missing word? Enzymes are described as biological catalysts because they increase the __________ of biochemical reactions inside and outside living cells.
rate/speed
What scientific name is given to the temperature or pH at which an enzyme works best?
optimum ph
what system is this? liver, stomach, large intestine , small intestine?
digestive system
what organ produces bile?
Liver
True or false? The small intestine produces enzymes.
True
Digestive enzymes break down food into molecules that are small enough to be… what? absorbed into the bloodstream -dissolved in water- evaporated
absorbed into the bloodstream
What is the missing word? High temperatures change an enzyme’s __________ and stop it working.
structure/shape
When a protein molecule permanently changes its shape on being heated, this is known as __________. What word completes the sentence?
denatured
True or false? Enzymes are made of proteins.
True
Which of the following processes does not require enzymes? - osmosis - replicating DNA - digestion
osmosis