Chapter 3 Flashcards
Larger, heavier particles diffuse _____________________ (Faster, slower, at the same speed) as smaller, lighter particles?
slower
If red blood cells are placed in 10% NaCl, what will their appearance be and why?
The solution became hypertonic (water moved out of the cell). The occurred because during the reaction the cell shape became distorted and shriveled meaning water left the cell.
If red blood cells are placed in 0.9% NaCl (Contact lens solution), what will their appearance be and why?
The solution became isotonic (water moved in and out of the cell). This occurred because the cell was at equilibrium when placed in the solution.
If red blood cells are placed in distilled water, what will their appearance be and why?
The solution will be hypotonic (water will move into the cell) The occurred because the distilled water flooded the cell.
Carbon dioxide is a ______ of photosynthesis.
reactant
oxygen is a ______ of photosynthesis.
product
Water is a ______ of photosynthesis.
reactant
Glucose is a ______ of photosynthesis.
product
What substance diffuses in osmosis?
water
What happened to the weight of the dialysis bag filled with water and placed in a syrup solution?
The bag lost weight. This is because the water in the dialysis bag was hypertonic to the syrup solution it was sitting in
Carrot pieces placed in 10% NaCl did what?
Carrots placed in 10% NaCl lost water weight through osmosis. This occurred because the NaCl is hypertonic, meaning the cells contract within the carrot.
What happened to carrot pieces placed in distilled water?
There was no change in the weight of the carrots placed in distilled water, meaning the solution was isotonic to the carrot.
Which solution caused the dialysis bag to gain the most weight? 50% syrup, 100% syrup?
The 100% syrup
Define Osmosis
Diffusion occurring in all cells involving movement of water across a selectively permeable membrane.
Define Diffusion
A substance moving from high to low concentration
