Metric System
True or False: when converting to smaller unit, the decimal moves to the right
True
230mm
60mL is how many tablespoons
4tbsp
List one of the basic functions of the plasma membrane
1. Controls entry and exit of substances
2. Flexible to allow certain cell 'squeeze"
3. Allow cells to recognize one another
Which cellular process requires NO energy?
What prefix represents 1000?
kilo-
Convert 2.5 mL to L
0.0025L
Convert 0.5g to mg
500mg
What the complex function of the plasma membrane?
contain receptors to bind and transmit signals
Example:
- hormones/growth factors activate responses within cell
What is the process called for the movement of water across semipermeable membrane?
osmosis
True or False: when converting to a larger unit you move the decimal right
False: move the decimal left
Convert 1cg to g
0.01g
90mL is how many ounces?
3oz
How is the plasma membrane described?
selective permeable and amphiphilic
How does diffusion move a substance?
moves substances from high concentration area to low concentration until evenly distributed
What prefix means 0.001?
milli-
convert 8.511L to mL
8510.0 mL
1. fat soluble vitamins (A,D,E,K)
2. Drugs
3. Hormones
Does osmosis move water from
1. area high solute concentration to low solute concentration
or
2. area of low solute concentration to high area of solute concentration
2. are of low solute concentration to high solute concentration
List the 3 base unit for the metric system.
meter (m), gram (g), Liter (L)
convert 467mcg to mg.
0.467 mg
If a plasma membrane is selectively permeable what does that mean?
certain materials can move back and forth between the membrane
block unwanted materials
What type of area does water diffuses into?
where there is less water and more salt