1_B2 1.2 dissolved substance

Description

biology
katie-diving
Quiz by katie-diving, updated more than 1 year ago More Less
katie-diving
Created by katie-diving over 8 years ago
katie-diving
Copied by katie-diving over 8 years ago
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Resource summary

Question 1

Question
Dissolved substance can move into and out of cells by diffusion
Answer
  • True
  • False

Question 2

Question
Diffusion is the [blank_start]net[blank_end] movement of [blank_start]particles[blank_end] from [blank_start]high[blank_end] concentration to [blank_start]low[blank_end] concentration. The [blank_start]greater[blank_end] the difference in concentration, the faster the rate of diffusion
Answer
  • high
  • low
  • greater
  • net
  • particles

Question 3

Question
how if diffusion used in our body
Answer
  • in the lungs - oxygen passes through the cell membranes by diffusion in the mothers placenta in the gut, to the blood in capillary of villus in small intestine
  • the air into our skin

Question 4

Question
As the [blank_start]temperature[blank_end] increases, the amount of energy available for diffusion is increased. This means that a given particle will move [blank_start]faster[blank_end] (there is more energy >pushing= it) at a higher temperature. Thus the [blank_start]rate of diffusion[blank_end] will be faster as the temperature increases.
Answer
  • temperature
  • faster
  • rate of diffusion
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