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MC - Absorbing Mater

Multicellular Organisms - Digestive/Respiratory system

QuestionAnswer
What is digestion? breakdown of large insoluble molecules into small soluble molecules (BLISS)
What is protein broken down into? amino acids
What is fat broken down into? fatty acids and glycerol
What is starch broken down into? maltose (sugar)
What is the name for the finger-like projections in the small intestine? Villi
What is the function of the villi? Absorb nutrients from food
Why is the small intestine good at absorbing food? large number of villi providing a large surface area.
Give four features of the villi that allow them to easily absorb nutrients Large surface area, thin lining, good blood supply, high number of villi
Which part of the villi absorbs fatty acids and glycerol? Lacteal
Which component of the villi absorbs glucose and amino acids? Blood capillary
What does the blood capillary absorb? glucose and amino acids
What does the lacteal absorb? fatty acids and glycerol
What needs to be absorbed from the bloodstream? oxygen and nutrients
What is the waste material removed from cells into the bloodstream? carbon dioxide
What are the main gas exchange organs? the Lungs
What do the lungs contain that provide them with a large surface area? a large number of alveoli
What are the 3 features of alveoli that allow gas exchange? Large surface area, good blood supply, thin walls
Give one feature of tissues which allows them to exchange materials with cells? They have capillary networks.
Created by: StNiniansHS