Lab semester 1 review

23 terms by sbooth88

Create a new folder

Advertisement Upgrade to remove ads

measurement, acids and bases, macromolecules, enzymes, microscope, the cell, osmosis and diffusion,

what is the Meniscus?

concave surface of a liquid resulting from surface tension

where do you measure volume of a liquid?

bottom of meniscus

convert 123,000 to scientific notation

1.23 x 10^5

formula to convert F to C

1.8(*C) + 32

formula to convert C to F

(*F-32) / 1.8

basic units for length, mass and volume

meter, gram, liter

Formula to find area of a box

L x W x H

Define Acid

Substance that dissociates when dissolved in water

Define Base

substance the reduces hydrogen ion concentration when dissolved in water

Define pH

measure of power of the hydrogen ion concentration in a solution.

what id pH neutral?

7

Define Anthocyanins

plant pigment used as pH indicator
Ex: red cabbage extract

Define Buffer

special solutions that help maintain pH by resisting changes.

3 ways to measure pH

pH meter, Anthocyanin indicators, pH paper

Know pH level with matching color

pH 2 = red
pH 3 = pink
pH 5 = violet
pH 7 = purple
pH 8 = blue
pH 12 = green

Which antacid neutralized acid best?

alka-selzer

Define Colorimetry

Chemicals used to test for presence of marcomolecules

Define oxidation

interaction between oxygen molecules and other substances

What is Sudan IV?

used to test for lipids. Red stain

Define Emulsion

Mix of 2 or more liquids that are normally unblendable

Define Emulsifier

Stabilizes an emulsion by increasing it's kinetic energy

Define Hydrolysis

Bonds between monomers broken down by addition of water
EX: Digestion

Difference between polar and non polar

polar like water (Hydrophillic)
non-polar doesn't like water (Hydrophobic)

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set