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Cell & Cell Transport Practice

Total questions: 45

Worksheet time: 2hrs 42mins

Name
Class
Date
1.

A prokaryote is an organism that

a)

lacks a nucleus

b)

has a cell wall

c)

is very small

d)

all of the above

2.

An example of an organelle seen in plant cells, but NOT seen in animal cells is:

a)

chloroplasts

b)

a cell wall

c)

central vacuole

d)

all of the above

3.

The first cell that ever existed on earth most likely

a)

was very tiny

b)

lacked a nucleus

c)

lacked DNA

d)

was very tiny and lacked a nucleus

4.

A cell that has complex organelles is most likely a(n):

a)

bacteria cell

b)

prokaryotic cell

c)

eukaryotic cell

d)

cyanobacterial cell

5.

The difference between smooth and rough ER is that

a)

smooth ER has no role in the cell

b)

rough ER produces vesicles

c)

rough ER has ribosomes on its surface

d)

smooth ER never touches the nucleus

6.

The role of the ______________________ is to produce and store RNA.

a)

nucleus

b)

nucleolus

c)

ribosomes

d)

smooth ER

7.

Proteins are made by

a)

nucleolus

b)

golgi apparatus

c)

chromosomes

d)

ribosomes

8.

The function of the Golgi apparatus is to

a)

control the cell's functions

b)

package and distribute proteins

c)

store water

d)

allow things in and out of the cell

9.

Vesicles that contain powerful enzymes used to break down substances are called

a)

vacuoles

b)

ribosomes

c)

lysosomes

d)

flagella

10.

The organelles that captures energy from the sun to make organic compounds are

a)

lysosomes

b)

vasicles

c)

vacuoles

d)

chloroplasts

11.

The organelle that is responsible for producing energy in the form of ATP is

a)

lysosomes

b)

chloroplasts

c)

mitochondria

d)

the cell membrane

12.

A small membrane-bound sac which carries various items within the cell is called a

a)

vesicle

b)

lysosome

c)

vacuole

d)

nucleolus

13.

The function of the central vacuole is to

a)

release salt

b)

store water and nutrients

c)

package proteins

d)

transport proteins

14.

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?

a)

the cells use more energy than others

b)

the cells store more nutrients

c)

the cells degrade more proteins

d)

the cells divide more frequently

15.

The diffusion of water through a permeable membrane is called

a)

osmosis

b)

active transport

c)

facilitated diffusion

d)

endocytosis

16.

Which of the following is NOT a characteristic of active transport?

a)

it moves substances against a concentration gradient

b)

it requires energy from the cell

c)

it involves facilitated diffusion

d)

it may use carrier proteins that often function as the sodium potassium pump

17.

Diffusion is the movement of a substance

a)

through a lipid bilayer

b)

only in water

c)

from an area of low concentration to an area of high concentration

d)

from an area of high concentration to an area of low concentration

18.

The cell membrane is best described as

a)

a waterproof layer of polysaccharides connected by short chains of amino acids

b)

a web of protein fibers

c)

a double layer of phospholipids

d)

a thick layer of proteins and carbohydrates

19.

The sodium potassium pump

a)

helps maintain homeostasis

b)

pumps sugars across the membrane from an area of low concentration to an area of high concentration

c)

pumps 3 Na+ ions out of the cell, and 2 K+ ions in to the cell

d)

Both (a) and (c)

20.

Molecules that are too large to be moved through the cell membrane can be transported INTO the cell by

a)

osmosis

b)

exocytosis

c)

endocytosis

d)

diffusion

21.

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?

a)

water will move into the cell

b)

sugar will move into the cell

c)

water will move out of the cell

d)

sugar will move out of the cell

22.

The diagram below illustrates how plant root cells take in mineral ions from the surrounding soil. Which of the following processes is illustrated?

a)

active transport

b)

osmosis

c)

diffusion

d)

passive transport

23.

A type of passive transport in which transport proteins move sugars and other polar molecules in and out of the cell is known as:

a)

diffusion

b)

osmosis

c)

facilitated diffusion

d)

endocytosis

24.

Active transport can be used to transport substances from _______ to ________ concentrations.

a)

high to low

b)

low to high

c)

large to small

d)

equilibrium to gradient

25.

Which of the diagrams best represents the movement of molecules in osmosis?

a)

A

b)

B

c)

C

d)

D

26.

A concentration gradient is best described as:

a)

the movement of substances from high concentrations to low concentrations.

b)

a difference of concentrations between two regions.

c)

the random motion of particles.

d)

the state in which the concentrations of a substance are equal on both sides of the membrane.

27.

If a concentration is present then a gradient is present, substances will naturally diffuse from ______ concentrations to______ concentrations.

a)

high; low

b)

low; high

c)

equal to low

d)

none of the above

28.

Active transport can be used to transport molecules that are too __________ to cross the cell membrane.

a)

large

b)

small

c)

nonpolar

d)

ionic

29.

Cell environments that are high in solutes in relation to the inside of the cell are

a)

hypotonic

b)

hypertonic

c)

isotonic

d)

prokaryotic

30.

Cell environments that are equal in the amount of solutes in relation to the inside of the cell are

a)

hypotonic

b)

hypertonic

c)

isotonic

d)

eukaryotic

31.

If a cell is exposed to highly concentrated salt water, water will move ______ the cell.

a)

into

b)

out of

c)

neither into nor out of

d)

both into and out of

32.

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

a)

exocytosis

b)

endocytosis

c)

carrier proteins

d)

pumps

33.

Once equilibrium is reached, the NET rate of diffusion becomes

a)

zero

b)

increased

c)

negative

d)

none of the above

34.

During osmosis, water moves _____ the concentration gradient.

a)

against

b)

with

35.

Ions that move across the cell membrane from low concentrations to high concentrations are most likely

a)

a) diffusing through ion channels

b)

b) using energy during the process of active transport

c)

c) moving through a protein

d)

both (b) and (c)

36.

The heads of the cell membrane are _______________; whereas the tails of the cell membrane are _______________.

a)

hypotonic; hypertonic

b)

uncharged; charged

c)

hydrophilic; hydrophobic

d)

water; oil

37.
What happens to a plant cell that is placed into a hypotonic solution?
a)
It shrinks
b)
Plasmolysis
c)
It swells
d)
Cytolysis
38.
What might happen to a freshwater plant that is placed into saltwater?
a)
Cells will swell
b)
Plasmolysis
c)
Cytolysis
d)
There will be no change
39.
A cell with a 5% salt solution is placed into a beaker with a 10% salt solution.  This solution is considered to be _____ to the cell.
a)
Isotonic
b)
Hypertonic
c)
Hypotonic
d)
None of the Above
40.
A cell with a 5% salt solution is placed into a beaker with a 10% salt solution.  What will happen to the cell?
a)
It will shrink
b)
It will swell
c)
No change
d)
Cytolysis
41.
A cell with a 20% salt solution is placed into a beaker of pure water.  What will happen to the cell?
a)
It will shrink
b)
Plasmolysis
c)
No change
d)
Cytolysis
42.
A cell with a 10% salt solution is placed into a beaker with a 40% salt solution.  How will water move?
a)
It will leave the cell
b)
It will enter the cell
c)
It will move in and out equally
d)
There will be no movement
43.
A plant cell with a 20% salt solution is placed into a beaker with a 10% salt solution.  What will happen to the plant cell?
a)
Cytolysis
b)
Plasmolysis
c)
It will shrink
d)
It will swell
44.

Read the following scenario and use the data to answer the question:

John concludes that Membrane B is permeable to

a)

sugar only

b)

water only

c)

both water and sugar

d)

neither water nor sugar

45.

In the beginning, which side is hypotonic in terms of sugar concentration?

a)

Side 1, 10% sugar

b)

Side 2, 40% sugar

c)

neither side is hypotonic

d)

both sides is hypotonic