WorksheetsBiology- Unit 3 Part 1 Test
Total questions: 40
Worksheet time: 40mins
Select the three statements that are TRUE about "Cell Theory":
all organisms are made up of cells
existing cells produce new cells
cells are the basic unit of life
all cells are considered prokaryotes
all cells only contain RNA but no DNA
Which group of organisms could be classified as prokaryotes?
bacteria
animals
fungus
plants
Which groups of organisms are considered eukaryotes?
fungus
animals
plants
bacteria
The E.coli bacteria is considered a __________ cell because ________.
prokaryotic; it does not have membrane bound organelles
eukaryotic; it has membrane bound organelles
prokaryotic; it has membrane bound organelles
eukaryotic; it does not have membrane bound organelles
A cell from a leaf is considered a ___________ cell because _____________.
eukaryotic; it does have membrane bound organelles
prokaryotic; it does not have membrane bound organelles
eukaryotic; it does not have membrane bound organelles
prokaryotic; it does have membrane bound organelles
How could you classify this cell?
(Hint: what structures can you identify in this cell?)
eukaryotic cell
prokaryotic cell
bacterial cell
plant cell
How could you classify this cell?
(Hint: The tangled structure in the cell is DNA)
prokaryotic cell
eukaryotic cell
plant cell
animal cell
Which organelle can ONLY be found in animal cells?
lysosome
rough endoplasmic reticulum
nucleus
Golgi apparatus
What is the function of the mitochondria?
creates energy for the cell
creates a vesicle around protein
barrier for the cell
contains the genetic information of the cell
What is the function of the Golgi apparatus?
stores, sorts, and ships proteins to their destination
contains genetic information for the cell
has ribosomes that create proteins
creates proteins by stringing together amino acids
Which organelle do BOTH animal and plant cells have in common?
mitochondria
chloroplast
cell wall
centriole
What is the function of the cell membrane?
barrier for the cell
contains the genetic information of the cell
creates a vesicle around a protein
powerhouse of the cell
What is the function of the rough endoplasmic reticulum?
has ribosomes attached to it that create proteins
contains genetic information for the cell
stores proteins in vesicles
sorts and ships proteins to their proper place in the cell
Which organelle can ONLY be found in plant cells?
chloroplast
nucleus
ribosomes
cell membrane
What is the function of the nucleus?
contains the genetic information of the cell
barrier for the cell
creates a vesicle around a protein
powerhouse of the cell
Which one of these terms is NOT another way to describe the cell membrane?
genetic information for the cell
barrier for the cell
phospholipid bilayer
semipermeable membrane
What structure of this macromolecule is labeled "B"?
the fatty acids
the polar region
the phosphate group
the glycerol region
How could you describe the area of this molecule labeled with the "A" and what is its relationship to water?
the polar region; it is attracted to water
the polar region; it is repelled by water
the non-polar region; it is attracted to water
the non-polar region; it is repelled by water
What are the red circles labeled "A" in the picture above?
the charged phosphate groups
the fatty acid tails
the water molecules
the embedded proteins
In this computer model, the colorful molecules labeled "A" are the charged phosphate groups of phospholipids.
What description best fits the region labeled "B"?
the non-polar region; it is repelled by water
the non-polar region; it is attracted to water
the polar region; it is repelled by water
the polar region; it is attracted to water
What are the molecules labeled "A" in the above picture (red circles with yellow tails)?
phospholipids
proteins
cholesterol
carbohydrates
What are the large blue macromolecules labeled "B" in the picture above?
proteins
carbohydrates
cholesterol
phospholipids
All of the molecules in the cell membrane (shown above) are constantly moving around each other. What term describes this movement?
the Fluid Mosaic Model
the semipermeability of the membrane
the polar and non-polar regions of the phospholipid
the movement of water across the membrane
The term "semipermeable" means that the cell membrane...
can prevent some molecules from coming into or out of the cell
can change the amount of phospholipids in the membrane
will automatically arrange itself in a phospholipid bilayer
will let everything freely enter the cell
Which statement is NOT true about passive transport?
molecules move from areas of high to low concentration
process requires no energy to proceed
process requires energy in order to proceed
includes osmosis and facilitated diffusion
What are the THREE types of passive transport?
osmosis
diffusion
facilitated diffusion
endocytosis
exocytosis
What are the TWO types of active transport?
osmosis
diffusion
facilitated diffusion
exocytosis
endocytosis
What are the THREE different ways to describe how a solution affects the osmosis of water across a cell membrane?
isotonic
hypertonic
hypotonic
exocytosis
facilitated diffusion
Predict how the molecules in the image above will move with no extra energy input.
molecules will move to the right (move from high to low concentration)
molecules will move to the left (move from low to high concentration)
molecules will stay in place because this is an isotonic solution
molecules require a protein to help facilitate the diffusion process
What statement is NOT true about diffusion?
molecules move from a high concentration to a low concentration
it is a type of passive transport
it requires energy in order to proceed
can happen across a semipermeable membrane for select very small molecules
Osmosis is ...
the diffusion of water across a semipermeable membrane
the movement of any molecule from a high to a low concentration
movement of molecules across a membrane through a transport protein
the movement of large molecules out of the cell
Facilitated diffusion is ...
the movement of molecules across a membrane with the help of a transport protein
the diffusion of water across a semipermeable membrane
the movement of any molecule from a high to a low concentration
the movement of large molecules into the cell
Endocytosis is the movement of...
large molecules into the cell that requires energy
large molecules out of the cell that requires energy
any molecule from a high to low concentration
large molecules into the cell that requires no energy
Exocytosis is the movement of...
large molecules into the cell that requires energy
any molecule from a high to a low concentration
large molecules out of the cell that requires energy
large molecules out of the cell that requires no energy
What TWO statements are true about passive transport?
requires energy to happen
does not require energy to happen
molecules move "down" the concentration gradient
(from high to low concentration)
molecules move "against" the concentration gradient
(from low to high concentration)
What TWO statements are true about active transport?
requires energy to happen
does not require energy to happen
molecules move "down" the concentration gradient
(from high to low concentration)
molecules move "against" the concentration gradient
(from low to high concentration)
What is the process being shown in the picture?
diffusion
facilitated diffusion
osmosis
active transport
How could you describe the solution these cells are in? (The arrows show the movement of water across the cell membranes.)
isotonic solution
hypertonic solution
hypotonic solution
active transport
How could you describe the solution these cells are in? (The arrows show the movement of water across the cell membranes.)
isotonic solution
hypertonic solution
hypotonic solution
passive transport
How could you describe the solution these cells are in? (The arrows show the movement of water across the cell membrane.)
isotonic solution
hypertonic solution
hypotonic solution
facilitated diffusion
