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

A& P - BI 103

Chapter 3

QuestionAnswer
What is a cell? the basic structural and functional unit of all living organisms.
What three main parts make up human cells? plasma membrane; cytoplasm; nucleus
The activity of an organism depends on what? the individual and collective activities of it's cells.
The activity of cells are dictated by what? their specific subcellular structures
Continuity of life from one generation to another has a...? cellular basis
The plasma membrane separates two of the bodies major compartments into? intracellular fluid and extracellular fluid
The plasma membrane is composed of what? phospholipids, cholesterol and proteins
What are Tight Junctions? impermeable junctions that prevent molecules from passing through the intercellular space
What are Desmosomes? Anchoring junctions that bind adjacent cells together and help form internal network of fibers.
What are Gap Junctions? Communicating junctions that allow ions and small molecules to pass from one cell to the next for intercellular communication.
What is Primary Active Transport? The process in which ions are moved across cell membranes against electrochemical gradients using energy supplied directly by ATP
What is Secondary Active Transport? The process in which a single ATP molecule indirectly triggers the transport of other molecules across the plasma membrane
What is the Fluid Mosaic Model? The plasma membrane is a double membrane of lipid molecules with protein molecules dispersed in it. The proteins in the membrane from a changing mosaic pattern
Define Hydrophilic Phospholipids. Water loving
Define Hydrophobic Phospholipids Water hating
What is the Lipid Bilayer constructed of? Hydrophilic phospholipids, hydrophobic phospholipids, cholesterol, glycolipids, and lipid rafts (assemblies of saturated phospholipids)
What is the Nucleus? The control center; larges and highly organized.
What is the structure of the nucleus? Surrounded by a double-membrane nuclear envelope; has a distinct region called the nucleolus.
What is a Nuclear Envelope? A double layer membrane barrier separated by a fluid filled space.
What is the Function of the Nucleus? -Information storage and processing; contains the cells chromosomes. -Ribosomal RNA synthesis ( in the nucleolus).
What is the Rough Endoplasmic Reticulum? -A network of membrane-bound tubes and sacs studded with ribosomes. -The interior is called the lumen -The rough ER is continuous with the nuclear envelope.
What is the Function of the Rough Endoplasmic Reticulum? (Post Office) Ribosomes associated with the rough ER synthesize proteins, New proteins are folded and processed in the rough ER lumen.
What is the Smooth Endoplasmic Reticulum? (Fat Blaster) Lacks the ribosomes associated with the Rough ER
What is the function of the Smooth Endoplasmic Reticulum? Enzymes within the smooth ER may synthesize fatty acids and phospholipids, or break down poisonous lipids.
What is the Golgi Apparatus? -(traffic director for cellular proteins) Major function is to modify, concentrate, and package proteins and lipids made at the rough ER. -membranous vesicles carry materials to and from the organelle.
What are Ribosomes? Small, dark staining granules composed of proteins and a variety of RNAs called ribosomal RNAs
What is the structure of Ribosomes? non-membranous (they are not considered organelles). They have large and small subunits, both containing RNA molecules and protein. Ribosomes can be attached to the Rough ER or free in the cytosol.
What is the function of Ribosomes? protein synthesis.
What is Cytosol? The fluid part of the cytoplasm.
Define Cytoplasm. The cellular material between the plasma membrane and the nucleus.
Created by: kirstenrs
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