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Biology Quiz
Cells/Organelles/Diffusion/Osmosis
97
Biology
10th Grade
10/27/2011

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Term
Cell Size
Definition
Very small. Surface Area to Volume Rule
Term
Surface Area to Volume Rule
Definition

Cells maximize the SA:V ratio so they can efficiently transport materials in & out

Higher SA & Lower V=Easier to move things in and out

Term
Cell Theory
1.
2.
3.
Definition
General Idea accepted to be true based on evidence
All living things are made of cells
Cells are the basic of structure and function in organisms
All cells come from pre-existing cells
Term
Example of Prokaryotic Cells
Definition
Archea & Bacteria
Term
Example of Eukarotic Cells
Definition
Eukarya
Term
Components all Cells have
1.
2.
3.
Definition
Cell membrane/ Plasma membrane
Ribosomes
DNA
Term
Prokaryotic Cells
Nucleus?
Nuceoid Region?
Membrane bound organelles?
Single Celled?
Definition
No nucleus
Have "nucleoid region"
No membrane bound organelles
Single Celled
Term
Eukaryotic Cells
Nucleus?
Nuceoid Region?
Membrane bound organelles?
Single Celled?
Definition
Nucleus
Membrane bound organelles
Single cell or multicellular
Canalsobe??
Term
Cytoskeleton Define then say what it does
1.
2.
3.
All made up of _____
Definition
Hold up shape of cell
Microfiloments
Intermediate Filaments
Microtubules
Proteins
Term
Microfiloments, Intermediate Filaments, Microtubules
Definition
Act as anchors for organelles
Give structure to cells
Help cells move
Term
Microtubules
Made up of?
Form?
Help?
Definition
Tubulin Protein
Tracks that organelles can move along
chromosomes move during cell division
Term
Spindle
Definition
Pulls DNA from middle to two sides
Term
Flagella- 3 things
Definition
Tail
Help cells move
Can helps move other things for them
Term
Cilia- 3 things
Definition
Tiny hair
Help cells move
Can helps move other things for them
Term
Diffusion
Definition
Movement of molecules from area of high concentration to low concentration
Term
Passive Transport
Definition
Transport or movement of molecules that does not need energy.
Term
Concentration Gradient
Definition
Measurement of how concentration of something changes from one place to another.
When there is a difference
Can't be at equilibrium
State
Term
Equilibrium
Definition
State where there is no net movement
Term
Diffusion is affected by:
1
2
3
Definition
Temperature
Size of molecules
The steepness of concentration gradient
Term
Osmosis
Definition
Diffusion of water ONLY across a membrane
Term
Low Solute= ____ Water
High Solute= ____ Water
Definition
Low Solute= High Water
HIgh Solute= Low Water
Term
Hypertonic
Higher or Lower?
Definition
When solutions have unequal SOLUTE concentrations
The higher SOLUTE concentration
Term
Hypotonic
Definition
When solutions have unequal SOLUTE concentrations
The lower SOLUTE concentration
Term
Isotonic
Definition
If solute concentrations are equal
Term
Contractile Vacuole
Definition
Serves as a protective mechanism that prevents the cell from absorbing too much water and possibly exploding.
Term
Plasmolysis
Definition
Plasmolysis is the process in plant cells where the plasma membrane pulls away from the cell wall due to the loss of water through osmosis.
Term
Turgid
Turgor Pressure
Definition
Turgor Pressure is the main pressure of the cell contents against the cell wall in plant cells and bacteria cells, determined by the water content of the vacuole, resulting from osmotic pressure
Term
Cytolysis
Definition
When cells burst from too much water
Term
Saline
Definition
Same SOLUTE concentration as that of blood
Term
Aquaporin
Definition
Channel for water travel
Term
Double Membrane Organelles
1.
2.
3.
What's special about them?
Definition
Nucleus
Chloroplast
Mitochondria
They all have their own DNA
Term
Nucleus
Definition
Control Center for the Cell that holds the DNA code in the form of chromatin or chromosomes
Term
How many chromosomes do human's have
What is the one that makes males, male?
Definition
23
XY
Term
Nucleolus
Definition
Where the ribosome RNAs are made
Term
Chloroplast
Found in?
Collects?
Makes?
Definition
Found only in Protists and Plants
Far better at collecting solar energy than any solar cell that humans have invented so far
Makes Glucose using the Sun’s energy
Term
Stroma
Definition
The connective, functionally supportive framework of a biological cell, tissue, or organ
Term
Granum
Definition
Stack of "coins" in chloroplast
Term
Inter-membrane Space
Definition
Region between the inner membrane and the outer membrane of a mitochondrion or a chloroplast
Term
Thylakoid
Definition
One "coin" in chloroplast
Term
Mitochondria
Definition
Power Plant of the cell
Term
Listernae
Definition
Folds inside mitochondria
Term
Matrix
Lumen
Definition
Inside
Term
Mitochondrion brakes down parts of _____ to make _____
Definition
sugars to make ATP
Term
ATP
Definition
Adenosine Triphosphate
Term
Endosymbiotic Theory
Definition
Theory of how eukaryotes arose from prokaryotes
(When the cells like ate the other ones)
Term
Membrane infolding
Definition
When a cell membrane closes on itself making a bubble
Term
Single membrane organelles
Definition
Endomembrane/Cytomembrane System
Similar environments to outside cell
Term
Rough ER Has? Along the?
Builds?
Modifies?
Folds Called?
Definition
Has ribosomes. Along the cytosolic side of membrane
Membrane
Proteins made by ribosomes
Cisternae
Term
Smooth ER Makes _____ and ______ Stores? Breaks down? Detoxifies?
Definition

Does not have ribosomes

Makes Lipids and hormones

Stores Calcium Ions

Toxins Alcohol

Term
Golgi/Golgi bodies
Organizes the _____ and _____ that come from the ___
_____/______s them if needed
_____ them to their destination in _______
Definition
Organizes proteins and lipids that come to it from the ER’s
Modifies/Labels them if needed
Sends them on their way to their destination in vesicles!
Term
Vesicles
Definition
Small membrane “bubbles” that carry materials to their destination.
Term
Lysosomes
Definition
Garbage Compactor
Term
Vacuoles
Definition
Small vacuoles store food in plant and animal cells
Plants have a large permanent central vacuole that stores water and ions
Term
Only ______ have large central vacuoles that store water and other nutrients
Definition
Only plants have large central vacuoles that store water and other nutrients
Term
Secretory Protein's Path
1.
2.
3.
4.
5.
6.
7.
Definition
Info from DNA-
Info in RNA-
Ribsomes make protein
Rough ER modifies proteins
Smooth ER sends protein in vesicle to
Golgi body
Sends vesicle to destination
Term
Found only in plant cells
1
2
3
Definition
Cell Walls
Chlorplasts
Central Vacuole
Term
Found only in animal cells
1.
Define the abbreviated word
Definition
Centriole/Centrosome/MTOC-microtubule organizing center
Term
Leeuwenhook
Definition
Made 1st hand held microscope
Term
Hooke
Definition
Coined the term cells. Made an improved microscope
Term
Brown
Definition
Discovered Nucleus
Term
Schleiden
Definition
Hypothesized that plant cells were independent subunits of the whole plant
Term
Schwann
Definition
Stated both animals and plants are made up of cells
Term
Virchow
Definition
Cells only arise from pre-existing cells
Term
Plasmodesmata
Definition
Channels in the primary cell in which the cell wall of plants interconnect cell cytoplasm so substances can flow uninterrupted
Term
Tight Junctions
Definition
Link animal epithelial cells lining body cavities and organs to stop fluid from passing between cells
Term
Adhering Junctions
Definition
Join cells into tissues in locations where they need such as skin and heart
Term
Gap Junctions
Definition
Link to cytoplasm of neighboring cells similar to plamodesmata in plants
Term
Endocytosis
Definition
Cell brings in material from the outside into a vesicle that separates from the cell membrane
Term
Phagocytosis
Definition
Cell eating
Term
Pinocytosis
Definition
Cell drinking
Term
Receptor-mediated endocytosis
Definition
Uses receptor to identify the foods it wants to eat
Term
Phagocyte
Definition
Cell that does a lot of eating
Term
Exocytosis
Definition
Cell expels unwanted material from a vesicle that fuses with cell membrane
Term
Facilitated Diffusion
Definition
Diffusion that only occurs when there is a helper protein
Term
Ion channel
Definition
Channels that molecules move through with no "door"
Term
Channel proteins*****
Definition
Provide passageways through the plasma membrane for certain molecules
Term
Active transport
Definition
Facilitated diffusion in opposite direction. Needs energy
Term
Transporter Protein
Definition
A type of protein that actively transports materials across a cell membrane that would not otherwise allow this to occur.
Term
Uniport
Definition
Carrier that moves only one protein
Term
Symport
Definition
Carrier that carries two different things protein
Term
Antiport
Definition
Carrier that moves two things in opposite directions
Term
Sodium potassium pump
Define
Definition
An active transport mechanism
Term
_____ ______ molecules travel easily through membrane
Definition
Small nonpolar
Term
Passive Transport
Types:1.
2.
3.
Direction
___ Concentration Gradient
Definition
Facilitated Diffusion
Osmosis
Diffusion
High----Low
Down concentration gradient
Term
Active Transport
Requires?
Type
Direction
___ Concentration Gradient
Definition
ATP
Active Transport
Low----High
Up concentration gradient
Term
Secondary Active Transport
Depends on ____ ______ that is already ____ _____
Definition
Depends on Active Transport that is already using ATP
Term
Lipids with saturated fatty acids makes membrane _____ ______. Causing ____ to flow______
Definition
Lipids with saturated fatty acids makes membrane less fluid. Causing things to flow less
Term
Lipids with unsaturated fatty acids makes membrane ____ ______. Causing ____ to flow____
Definition
Lipids with unsaturated fatty acids makes membrane more fluid. Causing things to flow more
Term
Lipid Rafts
Define
Makes membrane ______ ______
Definition
When sphingolipids stick together.
Makes membrane less fluid
Term
Membrane Cholesterol
Definition
Reduce fluidity at normal temperatures
Term
Peripheral Proteins
Location/Define
Example
Definition
Stuck to the surface of the membrane
Cell signaling proteins
Term
Integral membrane Proteins
Location/Define
Example
Definition
Proteins that have some hydrophobic amino acids and are at least partway into the membrane layer
Some Signaling molecules
Term
Transmembrane Proteins
Location/Define
Examples
Definition
Integral proteins that pass all the way through.
Transport proteins, channels
Term
Amino Acids near the HEADS of LIPIDS tend to be ________
Definition
Hydrophilic
Term
Amino Acids near the TAILS of LIPIDS tend to be ________
Definition
Hydrophobic
Term
Glycolipids
Define
Used for ____ _____
Definition
Sugar attached to lipid
Used for identification purposes
Term
Glycoproteins
Define
Used for ____ _____
Definition
Sugar attached to protein
Used for identification purposes
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