WorksheetsCell & Cell Transport Practice
Total questions: 45
Worksheet time: 2hrs 42mins
A prokaryote is an organism that
lacks a nucleus
has a cell wall
is very small
all of the above
An example of an organelle seen in plant cells, but NOT seen in animal cells is:
chloroplasts
a cell wall
central vacuole
all of the above
The first cell that ever existed on earth most likely
was very tiny
lacked a nucleus
lacked DNA
was very tiny and lacked a nucleus
A cell that has complex organelles is most likely a(n):
bacteria cell
prokaryotic cell
eukaryotic cell
cyanobacterial cell
The difference between smooth and rough ER is that
smooth ER has no role in the cell
rough ER produces vesicles
rough ER has ribosomes on its surface
smooth ER never touches the nucleus
The role of the ______________________ is to produce and store RNA.
nucleus
nucleolus
ribosomes
smooth ER
Proteins are made by
nucleolus
golgi apparatus
chromosomes
ribosomes
The function of the Golgi apparatus is to
control the cell's functions
package and distribute proteins
store water
allow things in and out of the cell
Vesicles that contain powerful enzymes used to break down substances are called
vacuoles
ribosomes
lysosomes
flagella
The organelles that captures energy from the sun to make organic compounds are
lysosomes
vasicles
vacuoles
chloroplasts
The organelle that is responsible for producing energy in the form of ATP is
lysosomes
chloroplasts
mitochondria
the cell membrane
A small membrane-bound sac which carries various items within the cell is called a
vesicle
lysosome
vacuole
nucleolus
The function of the central vacuole is to
release salt
store water and nutrients
package proteins
transport proteins
Some cells, such as human nerve cells and human muscle cells, contain more mitochondria than do other cells, such as skin cells.Why do some cells have more mitochondria than others?
the cells use more energy than others
the cells store more nutrients
the cells degrade more proteins
the cells divide more frequently
The diffusion of water through a permeable membrane is called
osmosis
active transport
facilitated diffusion
endocytosis
Which of the following is NOT a characteristic of active transport?
it moves substances against a concentration gradient
it requires energy from the cell
it involves facilitated diffusion
it may use carrier proteins that often function as the sodium potassium pump
Diffusion is the movement of a substance
through a lipid bilayer
only in water
from an area of low concentration to an area of high concentration
from an area of high concentration to an area of low concentration
The cell membrane is best described as
a waterproof layer of polysaccharides connected by short chains of amino acids
a web of protein fibers
a double layer of phospholipids
a thick layer of proteins and carbohydrates
The sodium potassium pump
helps maintain homeostasis
pumps sugars across the membrane from an area of low concentration to an area of high concentration
pumps 3 Na+ ions out of the cell, and 2 K+ ions in to the cell
Both (a) and (c)
Molecules that are too large to be moved through the cell membrane can be transported INTO the cell by
osmosis
exocytosis
endocytosis
diffusion
If the concentration of sugar in a solution is lower outside the cell than inside the cell, which of the following will happen by osmosis?
water will move into the cell
sugar will move into the cell
water will move out of the cell
sugar will move out of the cell
The diagram below illustrates how plant root cells take in mineral ions from the surrounding soil. Which of the following processes is illustrated?
active transport
osmosis
diffusion
passive transport
A type of passive transport in which transport proteins move sugars and other polar molecules in and out of the cell is known as:
diffusion
osmosis
facilitated diffusion
endocytosis
Active transport can be used to transport substances from _______ to ________ concentrations.
high to low
low to high
large to small
equilibrium to gradient
Which of the diagrams best represents the movement of molecules in osmosis?
A
B
C
D
A concentration gradient is best described as:
the movement of substances from high concentrations to low concentrations.
a difference of concentrations between two regions.
the random motion of particles.
the state in which the concentrations of a substance are equal on both sides of the membrane.
If a concentration is present then a gradient is present, substances will naturally diffuse from ______ concentrations to______ concentrations.
high; low
low; high
equal to low
none of the above
Active transport can be used to transport molecules that are too __________ to cross the cell membrane.
large
small
nonpolar
ionic
Cell environments that are high in solutes in relation to the inside of the cell are
hypotonic
hypertonic
isotonic
prokaryotic
Cell environments that are equal in the amount of solutes in relation to the inside of the cell are
hypotonic
hypertonic
isotonic
eukaryotic
If a cell is exposed to highly concentrated salt water, water will move ______ the cell.
into
out of
neither into nor out of
both into and out of
A cell produced a large protein that needs to exit the cell. It will most likely be transported out of the cell via the process of
exocytosis
endocytosis
carrier proteins
pumps
Once equilibrium is reached, the NET rate of diffusion becomes
zero
increased
negative
none of the above
During osmosis, water moves _____ the concentration gradient.
against
with
Ions that move across the cell membrane from low concentrations to high concentrations are most likely
a) diffusing through ion channels
b) using energy during the process of active transport
c) moving through a protein
both (b) and (c)
The heads of the cell membrane are _______________; whereas the tails of the cell membrane are _______________.
hypotonic; hypertonic
uncharged; charged
hydrophilic; hydrophobic
water; oil
Read the following scenario and use the data to answer the question:
John concludes that Membrane B is permeable to
sugar only
water only
both water and sugar
neither water nor sugar
In the beginning, which side is hypotonic in terms of sugar concentration?
Side 1, 10% sugar
Side 2, 40% sugar
neither side is hypotonic
both sides is hypotonic
