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MC - Absorbing

Multicellular Organisms - Absorbing Materials

QuestionAnswer
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 three features of the villi that allow them to easily absorb nutrients Large surface area, thin walls, good blood supply.
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 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.
Which two substances must be absorbed into the bloodstream to be delivered to cells? Oxygen and nutrients from food.
Which waste product must be removed from the cells into the bloodstream? Carbon dioxide
Created by: StNiniansHS
 

 



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