WorksheetsAP Biology Cells and Cell Transport
Total questions: 24
Worksheet time: 24mins
What are the two types of cell transport?
Passive and Active
Active and Facilitated
Passive and Facilitated
None of the above
In passive transport, substances move across the cell membrane ________ the concentration gradient
AGAINST
ALONG
WITH
BETWEEN
Which example describes diffusion?
Water moving across a semi-permeable membrane
Baking cookies and smelling them throughout the house
Ions moving through an ion channel
All of the above
What macromolecule is embedded into the lipid bilayer and helps to transport molecules?
Carbohydrate
Lipid
Protein
Nucleic Acid
Which describes a hypotonic environment?
Too much water in the cell will cause the cell to burst - the percentage of water is higher outside the cell than inside the cell
Too little water in the cell will cause the cell to shrink - the percentage of water is lower outside the cell than inside the cell
Concentrations of water are equal inside and outside the cell
Which describes a hypertonic environment?
Too much water in the cell will cause the cell to burst - the percentage of water is higher outside the cell than inside the cell
Too little water in the cell will cause the cell to shrink - the percentage of water is lower outside the cell than inside the cell
Concentrations of water are equal inside and outside the cell
Which describes an isotonic environment?
Too much water in the cell will cause the cell to burst - the percentage of water is higher outside the cell than inside the cell
Too little water in the cell will cause the cell to shrink - the percentage of water is lower outside the cell than inside the cell
Concentrations of water are equal inside and outside the cell
The movement of particles from an area of high concentration to an area of low concentration
active transport
osmosis
diffusion
random movement
When material passes into and out of a cell at equal rates and there is no difference in concentration between the inside and outside of the cell, the cell is in a state of...
dynamic equilibrium
diffusion
osmosis
active transport
If a cell is placed in an environment with MORE oxygen OUTSIDE the cell than inside, the cell will...
gain oxygen
lose oxygen
gain water
lose water
The movement of materials that does NOT require energy is called...
active transport
passive transport
massive transport
proactive transport
The movement of materials that requires energy is called...
active transport
passive transport
massive transport
proactive transport
The movement of materials from an area of low concentration to an area of high concentration would require...
glucose
energy (ATP)
fish
chips
A process in which cells surround and engulf substances that are TOO BIG to enter the cell is known as...
Pinocytosis
Phagocytosis
Endocytosis
Receptor-mediated
When a cell forms a vesicle around unwanted particles and expels it OUT of the cell.
Pinocytosis
Endocytosis
Receptor-mediated
Exocytosis
Suppose glucose is dissolved in the fluid surrounding a cell (though in lower concentration than the internal solute concentration), and the cell needs to take in large amounts of glucose for cellular respiration. Which process could the cell use?
Osmosis
Active transport
Exocytosis
Simple diffusion
Suppose the inside of a cell has a total solute concentration of 4 M. Which of the following solutes outside of the cell would require active transport into the cell?
5.5 M glucose
4.2 M Cl-
6 M fructose
3 M Na+
Consider an artificial “cell” (an enclosed bag made of an artificial selectively permeable membrane that allows water, but not ions, to diffuse through) that has an internal concentration of 1 M NaCl and 0.8 M K2CO3. If our “cell” was placed in the following solutions, decide which of the solutions would cause the cell to stay the same.
1.8 M KCl
2.8 M KCl
1 M KCl
2.8 M KCl
A bacterial cell must obtain glucose for its metabolism. If glucose is in higher concentration outside the cell than inside, but the plasma membrane and other surface layers of the cell do not allow glucose to pass through, which is the most likely type of transport for glucose?
Simple diffusion
Osmosis
Facilitated diffusion via a gated channel
Facilitated diffusion via an aquaporin
The illustration shows the active transport of hydrogen ions through a membrane protein. Which of the following best predicts the effect of not having ATP available to supply energy to this process?
H+ ions will stop moving through the protein
H+ ions will move in the other direction through the protein.
H+ ions will continue to move through the protein in the original direction but at a slower rate.
H+ ions will begin to move through the phospholipid portion of the membrane in the original direction.
The active transport pump used to move sodium ions across the membranes of gill cells in a freshwater fish has each of the following characteristics EXCEPT:
It uses osmosis to carry sodium ions into the cells.
It requires energy.
It has a specific binding site for ATP.
It has a specific binding site for sodium ions.
Which statement best describes the effect on water transport across the cell membrane if the aquaporin in the figure ceases to function?
Water molecules will no longer be able to move across the cell membrane.
Water molecules will still be able to move across the cell membrane but at a slower rate.
Water molecules will only be able to enter the cell by active transport.
Water molecules will move across the cell membrane at a faster rate without the aquaporin regulating their flow.
If ATP breakdown (hydrolysis) is inhibited, which of the following types of movement across cell membranes is also inhibited?
Movement of oxygen into a cell
Movement of water through aquaporins
Passage of a solute against its concentration gradient
Facilitated diffusion of a permeable substance
Cholesterol is an important component of animal cell membranes. Cholesterol molecules are often delivered to body cells by the blood, which transports the molecules in the form of cholesterol-protein complexes (large molecules). The complexes must be moved into the body cells before the cholesterol molecules can be incorporated into the phospholipid bilayers of cell membranes. Based on the information presented, which of the following is the most likely explanation for a buildup of cholesterol molecules in the blood of an animal?
The animal’s body cells are defective in exocytosis.
The animal’s body cells are defective in cholesterol synthesis.
The animal’s body cells are defective in endocytosis.
The animal’s body cells are defective in phospholipid synthesis.
