The movement of materials from an area of higher concentration to a lower concentration.
100
Where does photosynthesis take place inside the cell?
Chloroplast
100
True or false: Animals can make their own food?
False
100
What happened to the carrot in the salt water? Why?
The carrot got smaller. Osmosis.
100
What is fermentation?
Breakdown of sugar into energy that doesn't require oxygen
200
What is diffusion?
The movement of water from an area of high concentration to an area of low concentration.
200
What does the sunlight do in photosynthesis?
Breaks apart the bonds
200
Where does respiration take place in a cell?
mitochondria and cytoplasm
200
What living organism did we use for the respiration demo?
Yeast
200
True or false? In mitosis a cell creates an exact copy of itself?
True.
300
What is active transport?
Movement of materials across a cell membrane that requires energy
300
What do the terms: photo and synthesis mean?
photo = light
synthesis = to make, or put together
300
What is ATP?
energy produced in respiration
300
Why could you smell vanilla inside the balloon?
The vanilla molecules diffused through the semi-permeable membrane of the balloon.
300
How is photosynthesis and respiration linked?
Photosynthesis creates products that become reactants for respiration. And respiration creates products that become reactants for respiration.
400
What is a selectively permeable membrane?
Allows certain material to pass through, but not all
400
What is the photosynthesis reaction in words?
carbon dioxide + water + sunlight MAKES sugar and oxygen
400
What is the reaction of respiration in words?
sugar + oxygen MAKES water + carbon dioxide + energy
400
Why did the carrot get bigger when we put it in water?
Osmosis - the water moved into the carrot, where the water was less concentrated. It was more concentrated outside, so the water moved into the carrot.
400
Fermentation results in what product besides carbon dioxide in yeast? In people?
Yeast - alcohol
People - lactic acid
500
What is exocytosis?
The process of moving large particles out of the cell.
500
What is the chemical formula for photosynthesis?
6 CO2 + 6 H2O + sunlight = C6H12O6 + 6 O2
500
What is the chemical formula for respiration?
C6H12O6 + 6O2 = 6 CO2 + 6 H2O + energy
500
What three factors could you change that had an impact on the rate of photosynthesis?
Level of CO2
Level of light
Color of light
500
If you put both a CO2 sensor and an O2 sensor on a container of sugar and yeast, what would happen to the readings on each meter?