SUBCELLULAR COMPONENTS
STRUCTURE & FUNCTION
PLASMA MEMBRANE
TRANSPORT
RANDOM
100
Name 2 differences between prokaryotic & eukaryotic cells.
presence of a nucleus
membrane-bound organelles
complexity of cell structure
100
Large sacs of hydrolytic enzymes that are found in mostly animal cells are called...
lysosomes.
100
The structure of cell walls in plants.
composed of cellulose
100
When a substrate is diffusing across a membrane at an equal rate.
dynamic equilibrium
100
Describe the difference between endocytosis & exocytosis.
endocytosis = bulk entry inside cell
exocytosis = bulk exit from cell
200
What is the main function of the Golgi apparatus?
process, modify, and package proteins & lipids for transport
200
How eukaryotic cells maximize the overall efficiency of reactions and biological processes.
compartmentalization
200
Describes the complex components of a eukaryotic plasma membrane.
Fluid Mosaic Model
200
If a cell with a 10% solute concentration is placed in a solution with a 15% solute concentration, what direction will water move?
OUT of the cell
200
This type of cell has a relatively low surface area to volume ratio.
large cell
300
When a cell is exporting a protein in mass quantities, what 3 organelles would be involved?
rough ER
Golgi body
vesicle
300
Name 3 organelles that are part of the endomembrane system and provide the respective function.
endoplasmic reticulum =
golgi body =
vesicles =
plasma membrane =
300
A large, nonpolar molecule must enter a cell through...
integral protein
protein channel OR carrier
300
What caused the change between the initial state and the final state in the diagram?
water moved from the right side to the left side of the U-tube because the left side was hypertonic compared to the right side
300
Water moves from areas of _______ water potential, or _______ solute concentration, to areas of _______ water potential, or _______ solute concentration.
high; low; low; high
400
All cells have these structures in common (4).
ribosomes
cell membrane
cytoplasm
DNA and/or RNA
400
DAILY DOUBLE!!!
Some cells are specialized for secreting enzymes. What organelle is most likely in abundance in these cells?
ribosomes
400
What part of the structure of the cell membrane prohibits small ions from traveling through it?
the hydrophobic tails of phospholipids in the bilayer
hydrophobic substances REPEL charged particles
400
Based on the graph, what is the concentration of the substance inside the dialysis bag?
about 0.15M
400
This organelle would synthesize a protein destined for the cell membrane.
Ribosome on the rough endoplasmic reticulum
500
Compare and contrast the functions of the rough endoplasmic reticulum (RER) and the smooth endoplasmic reticulum (SER) within a cell.
RER = protein synthesis
SER = lipid synthesis & detoxification
500
Which will be a more efficient cell?
cube-shaped each side 5 micrometers
cylindrical shape with radius of 2 micrometers & height of 10 micrometers
CUBE SHAPED CELL
(SA:V = 6/5)
500
If you wanted to increase the fluidity of the membrane, you would want to increase the number of this specific type of molecule.
saturated phospholipids
500
What type of transport is being used to move sucrose across the membrane?
secondary active transport
500
Describe an ion and it's relation to membranes.
small, highly charged
CANNOT pass through membrane without integral protein