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WorksheetsUnit 4 Cell Transport Review
Total questions: 60
Worksheet time: 3600secs
What is the significance of selective permeability to biological membranes?
Selectively permeability allows the cell membrane to control traffic into and out of the cell.
Selectively permeability prevents toxic materials from entering the cell.
Selectively permeability permits the selective uptake of nutrients and the elimination of wastes.
All the options are correct
Which of the following statements BEST describes the difference between active transport and passive transport?
Active transport has a concentration gradient, passive does not.
Active transport is the movement of very small molecules, passive is the movement of large molecules
Active transport requires energy from the cell, passive does not require energy.
Active transport is osmosis, but passive is exocytosis.
Limp (wilted) celery sticks are placed into a container of water. After some time in the water the celery sticks become firm again. Why does this occur?
Photosynthesis in the celery cells produces water
Water moves by osmosis into the celery cells
Water moves by osmosis out of the celery cells
Cellular respiration in the celery cells produces water
What process is represented in the diagram?
Osmosis
Active transport
Sodium-Potassium pump
simple diffusion
When animal cells are exposed to high concentrations of water, they can burst. However, plant cells exposed to the same high concentration of water rare burst. Why is this so?
Plant cells have cell membranes that prevent the cell from bursting
Animal cells absorb more water than plant cells.
Plant cells have cell walls that prevent the cell from bursting
Animal cells have more permeable cell membranes than plant cells
Sea water is dangerous to drink because
one cup of sea water contains enough sodium to poison you
sea water is hypertonic to your body tissues and drinking it will cause you to lose water by osmosis
sea water is isotonic to your body fluids and you will absorb too much water, causing your cells to burst.
the salt causes hypertension and you will promptly die of a stroke.
If cells are placed in a strong sugar solution such as corn syrup, water will _____.
pass from the sugar solution to the cells
pass from the cells to the sugar solution
stay in the cell
pass back and forth
The cell membrane contains channels and pumps that help move materials from one side to the other. What are these channels and pumps made of?
carbohydrates
lipids
nucleic acid
proteins
Diffusion is a form of __________ transport.
Passive
Active
Easy
Free
Passive Transport uses ____ energy
no
a lot of
a little bit of
some
_____________ is the free movement of particles across the membrane with the concentration gradient
diffusion
facilitated diffusion
active transport
fusion
What is the movement of particles with the concentration gradient using protein "helpers"?
diffusion
facilitated diffusion
active transport
enzymatic reactions
The general name for movement of substances across cell membranes without need of energy input
passive transport
active transport
After diffusion has occured & the concentrations are the same on both sides of a membrane, the substance is said to be in _________ ____________ .
exocytosis
dynamic equilibrium
net movement
facilitated
Some cells move large particles out of the cell through the process of:
Protein Synthesis
Endocytosis
Exocytosis
Cytoplasmic Streaming
Particle of movement from an area of lower concentration to an area of higher concentration.
Active transport
Passive transport
Particle of movement from an area of higher concentration to an area of lower concentration.
Active transport
Passive transport
Which type of transport uses energy in the form of ATP to transport substances?
Active transport
Passive transport
Which type of passive transport uses transport proteins to transport items such as glucose through the membrane?
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
What is the term to describe maintaining internal balance in the cell?
Diffusion
Homeostasis
Osmosis
Active transport
Which of these is not a form of passive transport?
Endocytosis
Diffusion
Osmosis
Facilitated Diffusion
What type of active transport does waste move out of the cell?
Endocytosis
Exocytosis
Sodium Potassium Pump
Diffusion
What part of the cell regulates what can enter and leave the cell?
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
What macromolecule is embedded into the lipid bilayer and helps to transport molecules?
Carbohydrate
Lipid
Protein
Nucleic Acid
This picture is a representation of what type of transport?
Osmosis because it is diffusing through a protein from an area of high concentration to low concentration.
Facilitated diffusion because it is diffusing through a protein from an area of high concentration to low concentration.
Facilitated diffusion because it is diffusing through a protein from an area of low concentration to high concentration.
Simple diffusion because it is diffusing through a protein from an area of high concentration to low concentration.
This picture describes the movement of molecules across the cell membrane. Choose 2 answers that correctly describes the movement of the molecules.
Molecules are moving up the concentration gradient.
Molecules are moving from an area of low concentration to area of high concentration .
Molecules are moving down the concentration gradient.
Molecules are moving from an area of high concentration to area of low concentration.
This a picture of an animal and plant cell placed in a solution. Describe the solution?
Isotonic
Hypotonic
Hypertonic
This a picture of an animal and plant cell placed in a solution. Describe the solution?
Isotonic
Hypotonic
Hypertonic
What type of solution was this plant placed in?
hypertonic
isotonic
hypotonic
What type of solution was this plant placed in?
hypotonic
isotonic
hypertonic
A cell with a 10% salt solution; is placed in distilled water with 0% starch concentration. Water can travel across a semipermeable membrane but starch cannot. Would you expect to see after an hour?
The solution inside the cell is hypotonic and moves into the cell.
The solution inside the cell is hypertonic so the water moves into the cell.
The solution inside the cell is hypotonic and moves out of the cell.
The solution inside the cell is isotonic so the water doesn't move.
Which cell do you think would be most ideal for maintaining homeostasis?
The smallest cell because it would be more efficient to remove and obtains molecules
The largest one because it would be able to obtain more food and store for longer periods of time.
The largest one because it has more room to grow
The medium cell because it would be more efficient to remove and obtains molecules
What is the job of the cell membrane?
Make proteins
Fold proteins
Direct cell's activities
Allow things in and out of the cell
Which of the following explains how the plasma (cell) membrane contributes to cell homeostasis?
¿Cuál de los siguientes explica cómo la membrana plasmática (celular) contribuye a la homeostasis celular?
It converts ATP to glucose to use for energy
catalyze (quickens) protein synthesis
Controls what comes in and out of the cell
Creates DNA
Choose the correct concentration gradient for ACTIVE transport
Elija el gradiente de concentración correcto para el transporte ACTIVO
low to high
high to low
Choose the correct concentration gradient for PASSIVE transport
Elija el gradiente de concentración correcto para el transporte PASIVO
low to high
high to low
True or False: Active transport requires energy.
Verdadero o Falso: El transporte activo requiere energía.
True
False
True or False: Passive transport requires energy.
Verdadero o falso: El transporte pasivo requiere energía.
True
False
Choose the pictures (3) that represent ACTIVE transport.
Elige las imágenes (3) que representan el transporte ACTIVO.
Which of the following explains how the plasma (cell) membrane contributes to cell homeostasis?
¿Cuál de los siguientes explica cómo la membrana plasmática (celular) contribuye a la homeostasis celular?
It converts ATP to glucose to use for energy
catalyze (quickens) protein synthesis
Controls what comes in and out of the cell
Creates DNA
Which of these is NOT an example of active transport
Endocytosis
Exocytosis
Osmosis
Protein Pumps
The sodium potassium pump is an example of
Passive Transport
Active Transport
Facilitated Diffusion
Endocytosis
6. The tails of a phospholipid are meaning that they are "water-hating" because they are
A. Hydrophobic, non-polar
B. Hydrophobic, polar
C. Hydrophilic, non-polar
D. Hydrophilic, polar
7. Act(s) as a membrane stabilizer, in particular when temperatures are high or low.
A. Phospholipids
B. Carbohydrates
C. Cholesterol
D. Peripheral Proteins
"Channel proteins" in the membrane form tunnels through which molecules too large to move through the membrane can pass in and out of the cell. This is called______
Osmosis
Facilitated Diffusion
Active transport
Protein pumping
Protein pumps on the membrane use energy to pick up molecules outside the cell, where the concentration is low, and move them inside, where the concentration is high. This is an example of______
Passive Transport
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
Which situation describes exocytosis?
A protein in the membrane uses ATP energy to actively push small molecules against the gradient.
A protein carrier or channel allows larger molecules to flow through the membrane
Water follows a concentration gradient through a membrane.
A vesicle fuses with the membrane, releasing waste out of the cell.
A type of active transport when a cell takes in large amounts of solids
pinocytosis
exocytosis
phagocytosis
osmosis
Which statement is correct? (choose 2)
In passive transport; particles move against the concentration gradient
In passive transport; particles move up the concentration gradient
In passive transport; particles move with the concentration gradient
In passive transport; particles move down the concentration gradient
Which statement is correct? (choose 2)
In active transport; particles move up the concentration gradient
In active transport; particles move against the concentration gradient
In active transport; particles move with the concentration gradient
In active transport; particles move down the concentration gradient
