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 Review #2

TermDefinition
Protein Is made of Amino Acids. Examples are Enzymes, hormones, muscle tissue, & membrane channels.
Carbohydrate Are made of simple Sugars. Examples are Glucose (small) & Starch (big).
Nucleic Acid Are made of Nucleotides (or bases). Sugar + phosphate group + base / base = A, C, G, T Examples are DNA and RNA.
Lipid Are made of Fatty acids & glycerol. Examples are Fats, Oils, & Waxes.
Diffusion Is movement from high to low concentration. It does not require energy.
Osmosis Is the diffusion of water.
Active Transport Is movement from low to high concentration. It requires energy.
DNA - gene - chromosome - nucleus A long section of DNA makes a gene (which codes for a protein) and a bunch of genes make up a chromosome. The DNA of all these genes are connected. All pairs of chromosomes (1set from each parent) are in the nucleus.
DNA - RNA - protein - trait DNA is copied into RNA which leaves the nucleus for a ribosome which connects amino acids to make a protein which gives us our physical traits.
Codon A sequence of three nucleotides which together form a unit of genetic code in a DNA or RNA molecule
Mutation Is a change in the DNA which may result in a change in the protein for which it codes.
Enzymes [what they do] They break things down, build things and basically speed up all reactions in our bodies.
Enzymes [conditions] Work best under optimal conditions... if it is too hot, too cold, too acidic, to basic, they will work slower or not at all.
Enzymes [specific] They only work on one certain substrate (Lactase ONLY breaks down lactose / DNA polymerase ONLY works on DNA / restriction enzymes ONLY search for and cut one specific sequence.
Fertilization Is the fusion of sperm & egg to form a zygote with the full number of chromosomes.
Differentiation Is when different genes "turn on" to cause the cell to specialize (nerve cell, muscle cell, ect.). ALL body cells have the SAME DNA, but different cells have different genes activated to make the cell have a unique shape to do its job.
Asexual Reproduction is like mitosis: copy and divide - the offspring are identical to the parents (bacteria, plant cuttings, clones.)
Sexual Reproduction provides genetic variation which allows the species to adapt and change.
Mitosis Where - in Body Cells / Produces - 2 Identical Cells / Such as... Muscle, Skin, Zygote, & Bacteria / Why? - Repair tissue, growth, & asexual reproduction / # of Chromosomes - Full Set / How - DNA multiplies 1 time and divides 1 time.
Meiosis Where - in Ovaries and Testes / Produces - 4 Different Cells / Such as... 4 small sperm or 1 big egg / Why? - to produce gametes for sexual reproduction / # of Chromosomes - 1/2 Set / How? - DNA multiplies 1 time & divide 2 times.
Nutrients Are used for energy or to synthesize (make) muscle, hormones, enzymes, new cells, ect.
Germ Cells Meiosis - Sperm or Eggs / Fertilization - Zygote / Mitosis - Embryo / Differentiation - Specialized Tissues & Organs
Created by: tderue
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