Photosynthesis
What are the inputs of photosynthesis?
Water and carbon dioxide
What are the inputs of cellular respiration?
glucose and oxygen
What does water follow?
solute
What is diffusion?
Movement of molecules from an area of high concentration to low concentration.
What are the outputs of photosynthesis?
Oxygen and glucose
What are the outputs of cellular respiration?
carbon dioxide, ATP (the energy carrier in cells) and water
How does water move?
Water moves from an area of high concentration to low concentration (moves from where there is more water/less stuff dissolved to where there is less water/more stuff dissolved).
What are two types of passive transport discussed in class?
simple and facilitated diffusion
What cell organelle does photosynthesis take place in?
chloroplast
What cell organelle does cellular respiration take place in?
mitochondria
What happens to a cell that is placed in a hypotonic solution?
it will grow/inflate
...because water moves INTO the cell. Animal cells will typically burst but plant cells will swell but remain intact (together) because of their strong cell walls.
What is osmosis?
Water passing through the membrane and in and out of the cell.
In what type of organisms does photosynthesis occur?
plants
In what type of organism does cellular respiration occur?
all living things
What will happen to a cell that is placed in an isotonic solution?
nothing will happen
...because the concentration is the same inside and outside so it doesn't grow or shrink.
Explain the process of facilitated diffusion?
It is the movement of large molecules using protein channels without using energy.
What is the definition of photosynthesis?
The process in which plants use sunlight, water and carbon dioxide to create their own food (glucose/sugar) and release oxygen to fuel life on Earth and create the base of the food web.
What is the difference between aerobic and anaerobic respiration (fermentation)?
AEROBIC USES OXYGEN AND ANAEROBIC DOES NOT USE OXYGEN!!!
*aerobic needs/requires oxygen to make carbon dioxide, water and ATP and is efficient (fast-working and breaks down glucose completely)
*anaerobic does not need oxygen and is not as efficient (quick-working and does not completely breakdown glucose)
What does it mean to say that the cell membrane is selectively permeable?
It means only certain substances are allowed to pass through, while others are blocked.
*This is necessary to make sure the cell keeps nutrients and gets rid of waste.
In what direction do molecules move during facilitated diffusion?
From an area of more concentration to less concentration (like downhill). (spreading out to an area where it is less crowded)