Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

BIO exam 1

QuestionAnswer
What is life Has cellular structure, metabolism, sensitivity, homeostasis, and grows/reproduces
Steps of the scientific method 1. make an observation 2. formulate a hypothesis 3. devise a testable prediction - an if/then statement 4. conduct an experiment 5. draw conclusions
null hypothesis proposes there is no relation between two factors
alternative hypothesis proposes there is a relation
Atom smallest particle that can exist
atomic number how many protons
atomic mass protons plus neutrons
isotopes different number of neutrons
Big 4 oxygen, carbon, hydrogen, nitrogen
electron shells first shell has 2, second has eight
Atom bonds - Covalent sharing electrons. Strong
Atom bonds - Ionic Transferring electrons. two opposing charges. Strong
Atom bonds - hydrogen ONF weak
Properties of water hydrogen bonds make water cohesive. allows for plants to transport it easily
Properties of water High heat capacity
Properties of water lower density when frozen
Properties of water is a good solvent. pries apart ionic compounds like NaCl
Neutral pH equal amounts of hydrogen and hydroxide ions
Acidic pH More hydrogen ions
Basic pH More hydroxide ions
Acids pH lower than 7. reactive and corrosive
Bases pH higher than 7. bitter and feel slppery
Buffers chemicals that act to reduce pH change
Macromolecules Proteins, carbs, lipids, nucleic acid
Monosaccharides single sugars. glucose, fructose, galactose. used as fuel for calls
glycogen Polysaccharide that is stored in muscles and liver for short term energy. carries lots of water weight
Complex carbs disaccharides and polysaccharides
disaccharides two simple sugars. sucrose and lactose
polysaccharides many simple sugers. glycogen and starches
structural carbs chitin and cellulose
chitin insect/crusteatan shells
cellulose plant fiber
lipids
Created by: user-1977125
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards