The picture shows the transfer of a molecule across the cell membrane. Which mode of transport is shown in the image?
Responses
A DiffusionDiffusion
B Active transportActive transport
C Transport via pumpTransport via pump
D Facilitated diffusionFacilitated diffusion
D Facilitated diffusionFacilitated diffusion
The cell membrane forms a protective barrier between the external and internal environments. It is referred to as ___________________, because it allows some substances to cross more easily than others and blocks other substances from crossing into the cell.
Responses
A impermeableimpermeable
B a fluid mosaica fluid mosaic
C a plasma membrane plasma membrane
D selectively permeable
D selectively permeable
The powerhouse of the cell: that is a term used to describe the ______________, because it's main function is to produce energy for cellular activities.
Responses
A nucleusnucleus
B mitochondriamitochondria
C Golgi bodiesGolgi bodies
D endoplasmic reticulum
B mitochondria
The kidney filters blood to remove wastes, which are sent to the bladder to be eliminated from the body. A similar process happens on a smaller scale on a cellular level. Which organelles work together to perform similar functions to the kidney and bladder.
Responses
A the cytoplasm and the vacuolethe cytoplasm and the vacuole
B the lysosomes and the cell membranethe lysosomes and the cell membrane
C the mitochondria and the chloroplastthe mitochondria and the chloroplast
D the nucleus and the endoplasmic reticulum
A the cytoplasm and the vacuole
As a part of a class assignment, a student correctly drew a picture showing the active transport of molecules across a cell membrane. Which image has the student drawn?
Responses
A
B
C
D
Since I am unable to see the images, I cannot provide a response. Please provide a description or further details about the image.
A student is creating a model of a eukaryotic cell to demonstrate their understanding of the organelles and their functions. The student has a battery for a power source, a rigid poster board for support, a light bulb that can blink on and shine light, and a Ziplock bag filled with water. Which statements are most appropriate to evaluate the use of these materials in the student's model? Select ALL that apply.
Responses
A The battery can represent the mitochondria, which powers the cell's activities.The battery can represent the mitochondria, which powers the cell's activities.
B The Ziplock bag can represent the cell membrane, which is mostly a water-filled structure.The Ziplock bag can represent the cell membrane, which is mostly a water-filled structure.
C The light bulb can represent the chloroplast, which uses light energy to perform photosynthesis.The light bulb can represent the chloroplast, which uses light energy to perform photosynthesis.
D The rigid poster board can be the cell wall, since it can give structural support outside of the cell.The rigid poster board can be the cell wall, since it can give structural support outside of the cell.
E The light bulb can represent the nucleus, since the nucleus transfers all of the energy from one part of the cell to another.
B The Ziplock bag can represent the cell membrane, which is mostly a water-filled structure.
D The rigid poster board can be the cell wall, since it can give structural support outside of the cell.
A student is creating a model of a eukaryotic cell to demonstrate their understanding of the organelles and their functions. The student has a battery for a power source, a rigid poster board for support, a light bulb that can blink on and shine light, and a Ziplock bag filled with water. Which statements are most appropriate to evaluate the use of these materials in the student's model? Select ALL that apply.
Responses
A The battery can represent the mitochondria, which powers the cell's activities.The battery can represent the mitochondria, which powers the cell's activities.
B The Ziplock bag can represent the cell membrane, which is mostly a water-filled structure.The Ziplock bag can represent the cell membrane, which is mostly a water-filled structure.
C The light bulb can represent the chloroplast, which uses light energy to perform photosynthesis.The light bulb can represent the chloroplast, which uses light energy to perform photosynthesis.
D The rigid poster board can be the cell wall, since it can give structural support outside of the cell.The rigid poster board can be the cell wall, since it can give structural support outside of the cell.
E The light bulb can represent the nucleus, since the nucleus transfers all of the energy from one part of the cell to another.
all of the above
The correct options are:
B The Ziplock bag can represent the cell membrane, which is mostly a water-filled structure.
D The rigid poster board can be the cell wall, since it can give structural support outside of the cell.
Which of these would be true concerning mitochondria and nerve cells?
Responses
A Free-floating mitochondria in the blood plasma creates the energy needed for the neurons.Free-floating mitochondria in the blood plasma creates the energy needed for the neurons.
B Mitochondria are not found in nerve cells because nerves use a different type of energy than ATP to function.Mitochondria are not found in nerve cells because nerves use a different type of energy than ATP to function.
C All of the ATP for nerve cells is transported to from the mitochondria in other cells directly to the nerve cells.All of the ATP for nerve cells is transported to from the mitochondria in other cells directly to the nerve cells.
D Due to the high energy demand of neurons, the mitochondria help produce large amounts of ATP needed for neurotransmission.
D Due to the high energy demand of neurons, the mitochondria help produce large amounts of ATP needed for neurotransmission.
Stove:kitchen: as _____ :plant cell.
Responses
A chloroplastchloroplast
B mitochondriamitochondria
C nucleusnucleus
D vacuole
A chloroplastchloroplast
The central vacuole in a plant cell is responsible for turgor pressure. When the vacuole loses water, the cytoplasm shrinks. When the vacuole gains water, the cytoplasm seems to swell up. One structure helps the plant cell keep its shape no matter how much force water is creating in the vacuole. This is the-
Responses
A cell wall.cell wall.
B cytoplasm.cytoplasm.
C cytoskeleton.cytoskeleton.
D cell membrane.
A cell wall.
The images of cells seen here supports the fact that the shape of plant cells are determined by how much ________ is contained within the vacuole.
Responses
A airair
B glucoseglucose
C saltsalt
D water
D water
A student is shown an unlabeled, simplified model of a cell and its subcellular structures. The student is asked to refine the model to show a cell that can meet high energy demands. Which refinement BEST addresses this task?
Responses
A The student should increase the amount of structure 10 to increase the size of the cell.The student should increase the amount of structure 10 to increase the size of the cell.
B The student should decrease the size of structure 1 to decrease the geneticmaterial in the cell
C The student should increase the amount of structure 4, because it is responsible for manufacturing the proteins.The student should increase the amount of structure 4, because it is responsible for manufacturing the proteins.
D The student should increase the number of structure 3, because it is responsible for generating the ATP in the cell.
D The student should increase the number of structure 3, because it is responsible for generating the ATP in the cell.
A decrease in the functionality of this structure in a cell would directly decrease the ability of the cell to exchange materials with its environment to maintain homeostasis.
Responses
A Structure 1Structure 1
B Structure 3Structure 3
C Structure 7
D structure10
A Structure 1
Plants cells have chloroplasts that contain chlorophyll. Chlorophyll is what gives plants their green color. What is the function of chloroplasts located inside plant cells?
Responses
A The chloroplast controls division of the cell.The chloroplast controls division of the cell.
B The chloroplast provides structure to the cell.The chloroplast provides structure to the cell.
C The chloroplast manufactures proteins for the cell.The chloroplast manufactures proteins for the cell.
D The chloroplast is where photosynthesis occurs.
D The chloroplast is where photosynthesis occurs.
skin:human body as _____:cell
Which word completes the analogy?
Responses
A cytoplasmcytoplasm
B membranemembrane
C plasmidplasmid
D nucleus
A cytoplasm
the illustration shows the basic unit of life. It is
Responses
A a cell.a cell.
B an atom.an atom.
C a molecule.a molecule.
D an organelle.