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8D Unicellular Organisms Final

Total questions: 25

Worksheet time: 35mins

Name
Class
Date
1.

What are the two main types of cells?

a)

Prokaryotic and eukaryotic

b)

Animal and plant

c)

Unicellular and multicellular

d)

Bacteria and archaea

2.

Which type of cell does not have a nucleus or other membrane-bound organelles?

a)

Prokaryotic cell

b)

Eukaryotic cell

c)

Animal cell

d)

Plant cell

3.

Which type of cell can be unicellular or multicellular?

a)

Prokaryotic cell

b)

Eukaryotic cell

c)

Animal cell

d)

Plant cell

4.

What are pathogens?

a)

Organisms that cause disease

b)

Cells that protect the body

c)

Cells that produce antibodies

d)

Organisms that fight infections

5.

Which type of pathogen can multiply rapidly inside the body?

a)

Bacteria

b)

Viruses

c)

Fungi

d)

Protoctists

6.

What are viruses?

a)

Particles of genetic material surrounded by a protein coat

b)

Unicellular organisms

c)

Multicellular organisms

d)

Cells with a nucleus

7.

Which type of pathogen can cause infections or allergies?

a)

Bacteria

b)

Viruses

c)

Fungi

d)

Protoctists

8.

What is the life cycle of all types of pathogens?

a)

Infect a host, reproduce, spread, infect other organisms

b)

Infect a host, spread, reproduce, infect other organisms

c)

Reproduce, infect a host, spread, infect other organisms

d)

Spread, infect a host, reproduce, infect other organisms

9.

What is the main function of mitochondria in eukaryotic cells?

a)

Energy production

b)

Protein synthesis

c)

Cell division

d)

DNA replication

10.

Surrounds the plant cell and maintains the cell shape and structure.

a)

Cell wall

b)

Cell membrane

c)

Nucleus

d)

Ribosome

11.

Which two cell parts are only in plant cells?

a)

4, 7

b)

6, 8

c)

7, 9

d)

6, 2

12.
What does a nucleus do to help the plant cell?
a)
it controls  the plant cell
b)
it controls the animal cell
c)
controls body
d)
controls bald people
13.

Houses gel-like fluids that support cell organelles and holds them in place.

a)

cytoplasm

b)

endoplasmic reticulum (e.r.)

c)

golgi bodies

d)

nucleus

14.

Is this an animal or a plant cell?

a)

Animal

b)

Plant

15.

Which structure contains DNA and controls the activities of the cell?

a)

Cell membrane

b)

Cytoplasm

c)

Mitochondria

d)

Nucleus

16.

Identify structure C in the diagram

a)

Cytoplasm

b)

Cell membrane

c)

Cell wall

d)

Chloroplast

17.

Identify structure C in the diagram

a)

Cytoplasm

b)

Cell membrane

c)

Nucleus

d)

Mitochondrion

18.
Which best explains how a single-celled organism can survive without other cells?
a)
They do not need to perform more than one function to survive.
b)
They are able to perform all necessary functions within one cell.
c)
They do not need any substance from outside of the cell.
19.
Logan is comparing the characteristics of different types of organisms. Which best describes a difference between insects and bacteria?
a)
Insects are made of one cell, while bacteria are made of many cells.
b)
Insects require energy to perform life functions while bacteria do not.
c)
Bacteria are made of one cell, while insects are made of many cells.
d)
Bacteria require energy to perform life functions while insects do not.
20.
Which organism is best classified as a single-celled organism?
a)
grasshopper
b)
bacteria
c)
pine needle
d)
mole
21.
How are multicellular and unicellular organisms different?
a)
Multicellular organisms have more than one cell and are smaller than unicellular organisms.
b)
Unicellular organisms have more than one cell and are larger than multicellular organisms.
c)
Unicellular organisms have one cell and are smaller than multicellular organisms.
d)
Multicellular organisms have one cell and are larger than unicellular organisms.
22.

Unicellular or Multicellular?

Clownfish

a)

Unicellular

b)

Multicellular

23.

Unicellular or Multicellular?

E. Coli Bacteria

a)

Unicellular

b)

Multicellular

24.

Which two of the following organisms are most commonly decomposers?

a)

Bacteria

b)

Fungi

c)

Earth worms

d)

Moth

25.

Unicellular or Multicellular?

Yeast

a)

Unicellular

b)

Multicellular

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