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WorksheetsMisc Cell Things AP Bio
Total questions: 89
Worksheet time: 52mins
What is NOT part of the cell theory?
all cells come from existing cells
all living things are made of cells
all cells have a nucleus
Cells are the basic unit and structure of all living things
An amoeba is a unicellular, animal-like protist that lives in ponds and streams. According to the cell theory, where did this cell come from?
another pre-existing amoeba cell
energy from the sun allowed the protist to reproduce
a multicellular organism
the nonliving environment
How are unicellular organisms different from multicellular organisms?
There are no differences
Unicellular organisms are made of many cells
Unicellular organisms are only classified as prokaryotes
Unicellular organisms are made of only 1 cell
What is the basic structural and functional unit of all living things?
atom
cell
molecule
human
Which type of cellular junction form a "quilted seal" between cells?
Tight junctions
Desmosomes (anchor junctions)
Gap Junctions
A type of inter-cellular connection in which the outermost portions of the two cell membranes have a tight seal together is termed a(n)
tight junction
intermediate junction
gap junction
desmosome (anchor junction)
The membranes of cells are spot welded together to form reinforced structural units that also allow the tissue to move and stretch. Skin cells have these kind of junctions.
desmosomes (anchor junctions)
Desmosomes (anchor junctions)
Desmosomes (anchor junctions)
Desmosomes (anchor juncctions)
ATP is required for which of the following?
Facilitated Diffusion
Exocytosis
Osmosis
Simple Diffusion
Which answer best describes what the cell membrane is made of?
Phospholipids
Proteins
Nitrogen
Glycogen
Osmosis is....
the diffusion of water.
the movement of water from low water concentration to high water concentration.
a process that requires ATP.
a form of active diffusion.
Chromatin can be described as....
a threadlike material composed of DNA and proteins.
an extracellular matrix that supports the cell.
the organelle responsible for intracellular transport.
a semipermeable membrane that allows "things" in and out of the cell.
Which type of diffusion is represented?
Facilitated diffusion
Osmosis
Diffusion
Which type of solution has the same solute concentration inside of and outside of the cell?
Hypertonic
Hypotonic
Isotonic
The cell shrunk in size, which means it was placed in a ____ solution.
Isotonic
Hypertonic
Hypotonic
The cell expanded in size to the point of lysing (bursting), which means it was placed in a ____ solution.
Isotonic
Hypertonic
Hypotonic
The cell shows water moving in and out equally, which means it was placed in a ___ solution.
Isotonic
Hypertonic
Hypotonic
where does water move
lower to lower water potential
higher to higher water potential
low to high water potential
high to low water potential
What are plasmodesmata?
Tight junctions found in plants
Gap junctions found in bacteria
Large gap junctions found in plants
Anchor junctions found in plants
What is the large gap junction found in plants?
Desmosomes
tight junctions
loose junctions
plasmodesmata
Where is the DNA found in a prokaryotic cell?
in the ribosomes
floating around in the cytoplasm
attached to the cell membrane
in the nucleus
Which of the following provide evidence for the hypothesis that prokaryotes evolved before eukaryotes.
prokaryotes are more complex
eukaryotes are multicellular which makes them simpler
prokaryotes have no nucleus and fewer genes
prokaryotes grow into eukaryotes
The Theory of Endosymbiosis explains:
how bacteria live
the origin of Eukaryotes
Why cells rely on one another
how species develop
Which of the following is evidence to support the endosymbiotic theory?
Mitochondria and chloroplasts have their own DNA, which is similar to prokaryotic DNA.
Fossil evidence shows that the first forms of life were prokaryotic cells.
All eukaryotic cells have a double-layered membrane composed of phosplipids and proteins.
Prokaryotes have the same number and types of enzymes as eukaryotes.
Are eukaryotes multicellular or unicellular?
multicellular
unicellular
both unicellular and multicellular
Both eukaryotic and prokaryotic cells have:
ribosomes
cell membranes
false
true
Eukaryotes are thought to have evolved by a prokaryote engulfing one heterotrophic bacteria and one photosynthetic bacterium.
false
true
Mitochondria , chloroplast , and bacteria are similar in size.
true
false
What are evidence to support endosymbiotic theory?
Mitochondria is found outside the cells
Mitochondria and chloroplast have 70S ribosomes.
Mitochondria and chloroplast have a double membrane, similar to the cell membrane
Mitochondria and chloroplast have their own genetic material (DNA)
Which statement below correctly explains and gives the importance of the endosymbiotic theory? (Select ALL that apply.)
The endosymbiotic theory states that the inner and outer membrane of the endoplasmic reticulum indicates these were once free living organisms which were taken into an early cell via endocytosis. The theory was further supported by the presence of prokaryotic ribosomes and replication of the endoplasmic reticulum via binary fission.
The endosymbiotic theory states that the inner and outer membrane of the mitochondria indicates these were once free living organisms which were taken into an early cell via endocytosis. The theory was further supported by the presence of prokaryotic ribosomes and replication of mitochondria via binary fission.
The endosymbiotic theory states that through endocytosis, early prokaryotic cells were able to bring in additional nutrients. These additional nutrients provided important energy that drove evolution of these prokaryotic cells into the eukaryotic cells seen today in more advanced organisms.
The endosymbiotic theory states that through endocytosis, early prokaryotic cells were able to bring in early energy rich eukaryotic cells. The energy provided drove evolution of these prokaryotic cells into the eukaryotic cells seen today in more advanced organisms.
The image depicts a shuffled order of the events that led to a eukaryotic cells according to the Endosymbiotic Theory. Put them in order.
B
A
C
E
D
Which of the following make up mitotic spindle?
Intermediate filaments
Microtubules
Nuclear Lamins
Actin filaments
Microtubules are
rope like
mesh like
hollow tubes
interlocking chains and ropes
The end of a growing microtubule is rich in which type of tubulin?
GTP bound tubulin molecules
GDP bound molecules
ATP bound tubulin
ADP bound molecules
Supportive tissues such as bone, get their strength from
cells
extracellular matrix
cytoskeleton filaments
In connective tissues the tensile strength of the tissue is provided by
Proteoglycans
Collagen
Actin
Cellulose
Which of the following is NOT true of gap junctions?
They allow inorganic ions and small water-soluble molecules to move directly between cells.
They allow ATP-driven pumps to move substances from one cell to another
They allow an electrical and a metabolic coupling between the cells. They may be opened or closed as needed.
In the extracellular matrix of animal tissues, which of the following molecules allows the matrix to resist compression?
Integrin
Collagen
Fibronectin
Proteoglycans
Cadherin proteins:
create an electrical and metabolic coupling between epithelial cells
link epithelial cells together by binding to similar cadherins in adjacent epithelial cells.
allow ions and small molecules to pass from one plant cell to another.
anchor epithelial cells to the basal lamina.
Which type of epithelial junction plays a role in an epithelial sheet’s ability to develop tension or change its shape by contraction?
Desmosome
Gap junction
Tight junction
Adherens junction
Which is the toughest and most durable of the three types of cytoskeletal filaments?
Intermediate filaments
Microtubules
Actin Filaments
In the extracellular matrix of animal tissues, which of the following molecules attract water to keep cells hydrated and cushioned?
Integrin
Collagen
Fibronectin
Proteoglycans
Whip-like structure on outside of the cell (used for movement)
Mitochondria
Cilia
Flagella
Microvilli
Hair-like structures used for movement and sensing things in the environment.
cilia
pili
flagella
pseudopodia
A structure used to control water balance in a unicellular organism by releasing excess water. (basically, a microscopic bladder.)
contractile vacuole
pili
nucleus
large vacuole
Which of these are cytoskeleton fibers?
microtubules
intermediate filaments
microfilaments
dynein
microflagella
These are made of two thin actin chains that are twisted around one another. They are found in almost every cell, and are numerous in muscle cells and in cells that move by changing shape
microtubles
intermeadiate filaments
microfilaments
cytoplasm
This type of cytoskeleton is responsible for pulling replicated chromosomes to opposite ends of a dividing cell.
Microfilament
Intermediate filament
Microtubules
Actin filament
Passive transport
Does not require input of energy and moves against gradient
Does not require input of energy and moves with gradient
Requires input of energy and moves against gradient
Requires input of energy and moves with gradient
Facilitated diffusion
Does not use transport proteins and is a type of active transport
Does not use transport proteins and is a type of passive transport
Uses transport proteins and is a type of active transport
Uses transport proteins and is a type of passive transport
Endocytosis
Does not require ATP and allows large particles to enter the cell
Does not require ATP and allows large particles to leave the cell
Requires ATP and allows large particles to enter the cell
Requires ATP and allows large particles to leave the cell
How does oxygen enter blood cells in the lungs?
Active transport
Bulk transport
Facilitated transport
Simple diffusion
What protein generally moves the vesicles towards the minus end of the microtubles, toward the nucleus?
Actin
Dynein
Kinase
Myosin
Channels that perforate plant cell wall
Plasmodesmata
Tight junctions
Desmosomes
Gap junctions
Which of the following is the main function of intermediate filaments?
Cytoplasmic streaming
Cellular motility
Separate chromosomes in dividing cells
Fix organelles in place
Intermediate filaments are found in what structure?
The mitotic spindle
Desmosomes
Cilia
Centrosome
All of the following are plant cell wall components except:
Cellulose
Lipid
Protein
Polysaccharides
Which of the following contain the 9+2 arrangement of microtubules?
cilia
centrioles
flagella
Cilia and flagella
The extracellular matrix is thought to participate in the regulation of the animal cell behaviour by communicating information from the outside to inside of the cell via which of the following?
DNA and RNA
Nucleus
Integrin
Gap junction
What is the difference between the cilia and flagella?
Cilia are short, hair like appendages extending from the surface of a living cell. Flagella are long, threadlike appendages on the surface of a living cell.
Eukaryotic cilia and flagella are motile organelles built on a scaffold of doublet microtubules and powered by dynein ATPase motors.
.What cells have flagella and cilia?👏
Cilia show rotational motion like a motor; they are very fast moving
Both prokaryotic and eukaryotic cells contain structures known as cilia and flagella. These extensions from the cell surface aid in cell movement.
What are the string-like components of the cytoplasm from largest to smallest?
actin filaments, intermediate filaments, microtubules
intermediate filaments, microtubules, actin filaments
microtubules, intermediate filaments, actin filaments
What is dynamic instability?
Occurs in microtubules, when they randomly grow and retract.
Occurs in microtubules, where they stop growing and retracting.
Ions interact with microtubules, causing them to be unstable.
How do cilia move?
kinesin are linked to one actin filament and walk along a neighbor actin filament
dynein are linked to one actin filament and walk along a neighbor actin filament
kinesin are linked to one microtubule and walk along a neighbor microtubule
dynein are linked to one microtubule and walk along a neighbor microtubule
________________ is the process of capturing a substance or particle from outside the cell by engulfing it with the cell membrane. It uses energy in the form of ATP.
Endocytosis
Exocytosis
Isocytosis
Kinicytosis
Phagocytosis or cellular eating, occurs when the dissolved materials enter the cell. The plasma membrane engulfs the solid material, forming a phagocytic vesicle.
true
false
Pinocytosis, or cellular drinking, occurs when the plasma membrane folds inward to form a channel allowing dissolved substances to enter the cell.
true
false
What are the macromolecule components of proteoglycans? (Choose all that apply.)
lipid
protein
nucleic acid
carbohydrate
What is circular DNA called?
plasmid
chromosome
chromatin
chromatid
What is DIFFUSION?
Diffusion & Facilitated Diffusion are both __________ transport.
Passive
Active
Easy
Free
What is the movement of particles with the concentration gradient using protein "helpers"?
diffusion
facilitated diffusion
active transport
enzymatic reactions
Facilitated diffusion needs what to get particles from one side of the membrane to the other?
a membrane-spanning protein
a surface protein
a phospholipid
a carbohydrate
The condition in which all acting influences are balanced.
equilibrium
dynamic equilibrium
net movement
Small changes of particles moving across the membrane that sum together to produce no net change.
equilibrium
dynamic equilibrium
net movement
The number of molecules moving one direction minus the number of molecules moving in the other direction.
equilibrium
dynamic equilibrium
net movement
occurs when the concentration of particles is higher in one area than another.
concentration gradient
concentration
[high] --> [low]
The relative amount of a given substance contained within a solution or in a particular volume of space; the amount of solute per unit volume of solution. The higher the concentration, the more solute is present.
concentration gradient
concentration
[high] --> [low]
Particle of movement from an area of lower concentration to an area of higher concentration.
Active transport
Passive transport
