WorksheetsLife Science, Multicellular vs Unicellular Review
Total questions: 20
Worksheet time: 14mins
Name
Class
Date
1.
Which best describes the main job of most cells in multicellular organisms?
a)
Cells work to keep themselves alive.
b)
Cells work to keep the organism alive.
c)
Cells work to release needed materials.
d)
Cells work to store unneeded materials.
2.
Which organism performs all life processes in one cell?
a)
grass
b)
bacteria
c)
mushroom
d)
butterfly
3.
Which organisms are capable of surviving as a single cell?
a)
bacteria
b)
humans
c)
plants
d)
fish
4.
Which best explains why humans are multicellular organisms?
a)
Human cells are too small to function alone.
b)
Human cells join together to form one large cell.
c)
Humans need many cells to carry out life processes.
d)
Humans have many systems that perform the same function.
5.
Molly is reading a book in science class. She reads one sentence that says, “This organism is capable of surviving as a single cell.” Which organism is she most likely reading about?
a)
amoeba
b)
flower
c)
mushroom
d)
insect
6.
How are algae able to survive?
a)
The algae get energy from other algae.
b)
The algae do not require energy to survive.
c)
The single cell controls all the algae’s life processes.
d)
Other multi-celled organisms provide food for the algae.
7.
Why do humans require many different types of cells to survive?
a)
Human cells are identical and work together to perform the same function.
b)
Human cells are specialized and work together to perform the same function.
c)
Human cells are identical and work independently to perform different functions.
d)
Human cells are specialized and work independently to perform different functions.
8.
Which is the best way to classify grasshoppers?
a)
Grasshoppers are multi-celled organisms because they are made up of one cell that carries out all of their life processes.
b)
Grasshoppers are single-celled organisms because they are made up of one cell that carries out all of their life processes.
c)
Grasshoppers are single-celled organisms because they are made up of many cells that carry out all of their life processes.
d)
Grasshoppers are multi-celled organisms because they are made up of many cells that carry out all of their life processes.
9.
Which statement best describes a bacterial cell?
a)
It contains more than one cell.
b)
It is a complete organism.
c)
It is part of a larger organism.
d)
It contains different kinds of cells.
10.
A class is modeling the differences between a unicellular organism and a multicellular organism. Which example is a model of a unicellular organism?
a)
a student passing out water to a group
b)
a student getting cereal from the cabinet
c)
two students collecting trash from a group
d)
four students working together to move a desk
11.
A single-cell organism can do everything a cell from a multicellular organism can do except
a)
specialize.
b)
reproduce.
c)
use energy.
d)
make protein.
12.
Which is an example of a single-celled organism?
a)
fish
b)
tree
c)
fungi
d)
human
13.
Which best describes a multi-celled organism?
a)
basic
b)
simple
c)
uniform
d)
complex
14.
Which statement would most likely be found in an article about multi-celled organisms like plants?
a)
Plants have a simple structure.
b)
Plants contain only one cell that performs all functions.
c)
Plants do not need to eat, remove waste, or reproduce.
d)
Plants contain many specialized cells that perform different functions.
15.
How are single-celled organisms and multi-celled organisms similar?
a)
Both need food for energy and growth.
b)
Both have a skeletal system for support.
c)
Both require the interaction of many cells to survive.
d)
Both are able to carry out all life functions in only one cell.
16.
How are multi-celled and single-celled organisms different?
a)
Multi-celled organisms need energy to survive, while single-celled organisms need no energy to survive.
b)
Single-celled organisms can be seen without using a microscope, while multi-celled organisms are microscopic.
c)
Multi-celled organisms have large numbers of specialized cells to perform a variety of life functions, while single-celled organisms complete life functions with one cell.
d)
Single-celled organisms have large numbers of identical cells that all perform the same function, while multi-celled organisms have cells that are all different and perform different life functions.
17.
Fungi and bacteria are both single-celled organisms. What do they most likely have in common?
a)
Both fungi and bacteria are large organisms.
b)
Both fungi and bacteria can carry out all life functions in their one cell.
c)
Both fungi and bacteria need sunlight and nutrients from the soil to be able to grow.
d)
Both fungi and bacteria are highly specialized to do only one job so they must work with other cells to obtain food.
18.
Which best explains why both cats and humans are multicellular organisms?
a)
They get energy from many food sources.
b)
They get energy from a single food source.
c)
They need only one cell to meet their basic needs.
d)
They need many cells working together to meet their basic needs.
19.
Which is a difference between frogs and bacteria?
a)
Frogs are able to control all life processes in one cell, while bacteria cannot.
b)
Frogs are single-celled organisms, while bacteria are multi-celled organisms.
c)
Frogs are multi-celled organisms, while bacteria are single-celled organisms.
d)
Frogs must rely on other single-celled organisms for survival, while bacteria are dependent only on themselves.
20.
A scientist is trying to decide whether an organism is unicellular or multicellular. Which information would help the scientist most to make her decision?
a)
size of the cells of the organism
b)
what the organism eats
c)
how many types of cells are in the organism
d)
how fast the organism grows
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