Mrs Gren
What is the term for getting rid of waste
excretion
What is the term for the structure where photosynthesis takes place ?
chloroplast
What are the three structures found in plant cells, but not animal cells ?
cell wall, chloroplasts, vacuole
What do you measure to figure out which way water moves during this investigation ?
length or mass
What is diffusion ?
moving substances from an area of high concentration to an area of low concentration
What is the chemical reaction that uses sunlight to react water and carbon dioxide called.
photosynthesis
Name the outermost structure on a plant cell
cell wall
What is found in the nucleus ?
DNA, genes, genetic information, chromosomes, genetic code
Which way would water move if the potato had a sucrose concentration of 7.0% and the solution it was in had a concentration of 5.5% ?
Water would move into the potato cells.
What is osmosis ?
The process by which water tends to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.
What are the products of respiration ?
[ energy] + carbon dioxide + water
name the products of photosynthesis
oxygen and glucose
What is the term for the substance where many chemical reactions take place ? It fills the cell and holds the parts in place.
cytoplasm
What would happen to the length of a potato core if the potato had a sucrose concentration of 3.5%, and the solution it was soaking in had a sucrose concentration of 4.2 % ?
The length of the potato core would increase.
When water moves into or out of a cell, what part of the cell does it pass through ?
The cell membrane
Define sensitivity
detecting changes in the environment and responding
What is the function of mitochondria ?
where respiration takes place
What is the formula for calculating the actual size of an image ?
image size / magnification
What variable are you changing during this experiment ? What is the independent variable ?
the strength/concentration of the solution that the potatoes are soaked in
When a lot of water moves out of a plant cell, what happens to the cell membrane ?
The cell membrane pulls away from the cell wall.
define offspring
The young produced from living organisms, either by a single organism or two organisms.
What green pigment traps light energy for photosynthesis ?
chlorophyll
What is the formula for calculating the magnification ?
image size / actual size
What is the percent change in the mass of a potato that has an initial mass of 32.0 grams and a final mass of 29.5 grams ?
29.5 - 32.0 = -2.5
-2.5 / 29.5 = -0.085 X 100 = 8.5%
When water moves into a cell, what cellular structure holds the water ?
the vacuole