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WorksheetsHr Cells Organelles, Transport, Photosynthesis, Cell Resp
Total questions: 80
Worksheet time: 1hrs 5mins
The diagram below represents a cell in water. Explain why more water is moving out of the cell than into the cell.
The concentration of solute in the cell is higher than it is outside the cell.
The concentration of water outside the cell is too great.
The concentration of solute outside the cell is higher than it is inside the cell.
The concentration of water inside the cell is greater than it is outside the cell.
Algal cells are placed in an hypotonic solution. What happens to the cells?
They will begin to swell.
They will burst.
They will stay the same.
They will shrink.
How is the plasma membrane of a cell organized?
One layer of phospholipids, through which proteins freely move.
One layer of phospholipids, which are laid out end-to-end, with a hydrophobic tail touching a hydrophilic head.
Two layers of phospholipids, each of which has its hydrophilic side turned inward.
Two layers of phospholipids, with their polar hydrophilic heads facing away from each other and hydrophobic tails turned inward.
A plant cell is placed in a hypotonic solution. What will happen to the plant cell?
It will swell.
It will shrink.
It will stay the same.
It will wilt.
What is a major difference between facilitated diffusion and active transport?
Active transport moves substances against the concentration gradient.
Active transport uses proteins in the process.
Facilitated diffusion moves molecules through the plasma membrane.
Facilitated diffusion requires large amounts of energy.
Which of the following is an example of passive transport?
endocytosis
exocytosis
facilitated diffusion
Na+/K+ ATPase pump
At what point in the process of diffusion is dynamic equilibrium reached?
when the movement of the molecules
when the molecules are mixed and stop moving
when the rate of change in the solution slows by one half
when there is continuous movement but no change in size of cell
Diffusion does not require the cell to use energy. Therefore, diffusion is considered a type of
exocytosis
passive transport
active transport
endocytosis
Osmosis can be defined as
the diffusion of water.
the diffusion of nonpolar molecules.
active transport.
the diffusion of a solute.
A cell that has neither a net gain of water nor net loss of water when it is immersed in a solution must be
isotonic to its environment
hypertonic to its environment
hypotonic to its environment
metabolically inactive
In a hypotonic solution, an animal cell will
swell and maybe burst.
will lose turgor.
neither gain nor lose water.
shrivel.
If placed in tap water, an animal cell will undergo lysis (burst), whereas a plant cell will not. What accounts for this difference?
the expulsion of water by the plant cell's central vacuole
the relative impermeability of the plant cell wall to water
the fact that plant cells are isotonic to tap water
the relative strength of the plant cell wall
Facilitated diffusion across a biological membrane requires ________ and moves a substance ________ its concentration gradient.
energy and transport proteins; down
transport proteins; down
energy and transport proteins; against
transport proteins; against
Which of the following processes can move a solute against its concentration gradient?
osmosis
passive transport
facilitated diffusion
active transport
The process of a white blood cell engulfing a bacterium is
osmosis
receptor-mediated endocytosis
pinocytosis
phagocytosis
A group of single cell organisms collected from the ocean was brought into the lab for examination. The lab assistant was concerned that the water had become full of toxic waste products and so added clean water to the culture. All of the organisms died, and when she looked at them under the microscope, all she could see were bits and pieces of them scattered throughout the water. What likely happened?
She added water that was hypotonic to the organisms, and they ruptured.
She added sea water to which she had added too much salt, and they ruptured.
She added isotonic water to the organisms, causing too much water to move in and out of the organism, and they ruptured.
She added too little salt to the sea water she added, and the organisms all lost too much water and shriveled up.
Which figure depicts an animal cell placed in a solution hypotonic to the cell?
Cell A
Cell B
Cell C
Cell D
Which of the following most accurately describes selective permeability?
An input of energy is required for transport.
Lipid-soluble molecules pass through a membrane.
There must be a concentration gradient for molecules to pass through a membrane.
Only certain molecules can cross a cell membrane.
A plant is releasing a gas during photosynthesis. What is the most likely gas?
co2
methane
water vapor
oxygen
What is the correct formula for photosynthesis?
6CO2 + 6H2O -> 6O2 + C6H12O6 + Energy
6CO2 + 6H2O -> 6O2 + C6H12O6
6O2 + C6H12O6 + Energy -> 6CO2 + 6H2O
6O2 + C6H12O6 + Energy -> 6CO2 + 6H2O
In a chemical equation on which side of the arrow are the reactants?
left
right
up
down
Which of the following are the reactants of photosynthesis?
6CO2 + 6H2O
6O2 + C6H12O6 + Energy
6O2 + C6H12O6
6H2O + 6O2
Which of the following are the reactants of cellular respiration?
6CO2 + 6H2O
6O2 + C6H12O6 + Energy
6O2 + C6H12O6
6CO2 + C6H12O6
What do aerobic reactions have that anaerobic reactions don't have?
water
glucose
carbon dioxide
oxygen
Where is energy stored?
in the bonds of glucose
in the bonds of ATP
in the bonds of oxygen
in the bonds of carbon dioxide
Where does the first step of cellular respiration, glycolysis, take place?
in the chloroplasts
in the stroma
in the thylakoids
in the cytoplasm
In the Calvin Cycle carbon dioxide breaks down and produces
CO2
H2O
C6H12O6
O2
In photosynthesis water is broken down and what is produced during the light dependent phase?
CO2
H2O
C6H12O6
O2
When light is absorbed by chlorophyll molecules in the first phase of photosynthesis, they lose electrons, what happens to the reactant water molecule. What does it break down into?
water splits into 2H and an O and oxygen is created
it oxidizes into glucose
it fixes carbon
it breaks down ATP
The reactions of the Calvin cycle (light-independent cycle) are not directly dependent on light. Which of the following statements explains why not?
Carbon dioxide is not available at night.
The Calvin cycle(light-independent cycle) depends on products of light reactions.
It is too cold at night for reactions to take place.
Most plants do not make the 4-carbon compounds that would be needed for the Calvin cycle to occur at night.
Chlorophyll is the primary pigment in plant chloroplasts. It absorbs all wavelengths of light EXCEPT __________.
red
yellow
green
blue
Light-absorbing molecules such as chlorophyll are called ____________.
grana
pigments
stomata
thylakoids
Which reaction takes place in the thylakoid discs of the chloroplast?
carbon fixation
light-independent reaction
light-dependent reaction
Calvin cycle
What change could a student measure to collect data about the rate of photosynthesis in algae when it is exposed to light?
the temperature of the water surrounding the algae
the number of ribosomes in the green algae cells
the color of algae
the number of gas bubbles given off by the algae
The light reactions occur in the ________, while the Calvin cycle occurs in the ________.
stroma; thylakoid membranes
stroma; nucleus
cytoplasm; thylakoid membrane
thylakoid; stroma
In the cycle shown, which processes are represented by letters A and B? (think products)
A-excretion, B-respiration
A-transpiration, B-excretion
A-photosynthesis, B-transpiration
A-respiration, B-photosynthesis
Which identifies the relationship between photosynthesis and cellular respiration?
Both processes generate energy for cell use.
Both processes release energy for cell use.
The products of one process are used as reactants by the other process.
The reactants of one process are also the reactants of the other process.
Which scientist first used the term cell?
Hooke
Janssen
Pasteur
Virchow
Which cell organelle contains coded directions for production of proteins?
endoplasmic reticulum
lysosome
Golgi apparatus
nucleus
Which organelle produces protein for a cell?
nucleus
ribosome
endoplasmic reticulum
golgi apparatus
Which statement would not be included in a summary of the cell theory?
The cell is the basic unit of organization.
All cells contain a nucleus that controls cell division.
All organisms are made up of at least one cell
All cells come from other, preexisting cells.
Which organelle manufactures ribosomes?
golgi apparatus
endoplasmic reticulum
nucleus
nucleolus
While viewing a slide of rapidly moving sperm cells, a student concludes that these cells require a large amount of energy to maintain their activity. What organelles provide this needed energy?
vacuoles
ribosomes
chloroplasts
mitochondria
In which of the following structures would you find a nucleus?
bacterial cell
plant cell
prokaryote
virus
An organism’s genetic information is stored in which type of macromolecule?
DNA
lipid
carbohydrate
protein
Which is present only in eukaryotic cells?
cell membrane
DNA
chromosomes
nucleus
Which of the following statements defines a cell?
Microscopic organisms in water.
Protein molecules in animals.
The basic unit of living things.
The smallest type of animal.
There are three factors that affect the rate of photosynthesis. Choose them all.
Amount of light available
Temperature available
Amount of carbon dioxide available
Amount of oxygen available
This cell is simple. It has a cell membrane, genetic material, cytoplasm and ribosomes inside.
Eukaryotic
Prokaryotic
Plant
Animal
This is a complex cell. It could be plant or animal and contains membrane-bound organelles.
Eukaryotic Cell
Prokaryotic Cell
Bacteria
Blood cell
This organelle makes/transports fats/lipids.
Rough E.R.
Smooth E.R.
Golgi Bodies
Lysosomes
The function of this organelle is to use enzymes to break down food and worn-out cells/cell organelles.
Nucleus
Vacuole
Ribosome
Lysosome
Who is credited with being the first scientist to observe cork cells?
van Leewenhoek
Schleidon
Hooke
Schwann
Organisms that are only made of (a) cell(s) are called unicellular.
Check all the boxes of organelles that both plant and animal cells have.
chloroplasts
cell membrane
mitochondria
nucleus
cell wall
What type of cell are bacteria classified as?
Prokaryote
Eukaryote
If it does not rain for a long period of time, plants’ leaves will begin to wilt or sag. They have used up the water that they stored in their ___________
Vacuole
Chloroplast
Mitochondria
What is the term used when the cell membrane surrounds a particle and encloses it (for large particles)
Endocytosis
Exocytosis
Permeable
In high concentration
What is the term used when particles are removed from a cell (pushed out).
Endocytosis
Exocytosis
Permeable
In high concentration
