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

Biology Quiz Ch 1-2

Chapters 1 and 2

QuestionAnswer
An organ, such as the liver, is composed of tissues
What are the 2 main types of cells? Prokaryotes and Eukaryotes
DNA is composed of building blocks called: Nucleotide units
In Eukaryotic cells, DNA has the appearance of a Double Helix
What provides your body with energy? Fats
Plans use what as a source of energy? Light
What element is found in all organic compounds? Carbon
Plants obtain carbon from Carbon Dioxide
What name is given to organisms that convert the carbon in organic compounds into carbon in carbon dioxide? Decomposers
Prokaryotic cells are found in the domains? Bacteria & Archaea
In the 5 kingdom system, prokaryotes are placed in the kingdom Monera
What is the atomic number of an atom that has 6 protons, 6 neutrons, and 6 electrons? 6 (atomic number=protons)
Atoms with the same atomic number but different masses are? Isotopes
Fluorine's atomic number is 9, and its atomic mass is 19. How many neutrons does fluorine have? 10 (19-9=10)
An uncharged atom of born has an atomic number of 5 and an atomic mass of 11. How many protons does boron have? 5
The innermost electron shell of an atom can hold up to how many electrons? 2
Uncharged atom? The number of protons is equal to the number of electrons.
What determines the types of chemical reactions that an atom participates in? The number of electrons in the outermost electron shell.
Covalent Bond? One in which electron pairs are shared.
Two or more atoms held together by covalent bonds are? Molecules
If there are 4 electrons in the outermost shell, then the atom can hold up to how many single covalent bonds? 4
Double Covalent Bond? 4 electrons in a row (happens when there are 6 electrons on the valence shell, and they all unite).
In H20... Hydrogen is positive and oxygen is negative.
Polar Ex: water; bc it has positive charges on one side and negative charges on the other.
Non-Polar Ex: Carbon Dioxide; bc electrical charges are evenly distributed
Atoms with the same number of protons but with different electrical charges are: different ions (ions are charged atoms).
In salt, what is the nature of the bond between sodium and chlorine? Ionic (sodium and chlorine ions are attracted to each other).
An ionic bond involves: An attraction between ions of OPPOSITE charges.
Hydrogen Bond A hydrogen atom with a new POSITIVE charge is attracted to an oxygen atoms with a new NEGATIVE charge.
Bond between water molecules: Hydrogen Bond
All the organisms on your campus make up: A community
Correct sequence of levels in life hierarchy, proceeding downwards from an individual animal? Nervous system, brain, nervous tissue, nerve cell
NOT an observation or inference on which Darwin's theory of natural selection is based? Poorly adapted individuals never produce offspring.
Systems Biology is mainly an attempt to Construct models of the behavior of entire biological systems.
Protists and bacteria are grouped into different domains because protists have a membrane-bounded nucleus, which bacterial cells lack.
Best demonstration of the unity among all organisms? The structure and function of DNA.
An example of qualitative data? the fish swam in a zig-zag position
Best description of the logic of hypothesis based science: If my hypothesis is correct, I can expect certain test results.
A controlled experiment is one that May include experimental groups and control groups tested in parallel.
Which of the following statements best distinguishes hypotheses from theories in science? Hypotheses usually are relatively narrow in scope; theories have broad explanatory power.
In the term "trace" element, the modifier "trace" means: The element is required in very small amounts.
Compared with 31P, the radioactive isotope 32P has: One more neutron.
The reactivity of an atom arises from the existence of unpaired electrons in the valence shell.
What is true of all atoms that are anions? The atom has more electrons than protons.
What describes any chemical reaction that has reached equilibrium? The rates of the forward and reverse reactions are equal.
Created by: kserrano005
Popular Biology sets

 

 



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