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Microbiomes Chapter 1

Total questions: 20

Worksheet time: 12mins

Name
Class
Date
1.

Which is larger: cells or molecules?

a)

cells

b)

molecules

2.

Which of these units of measure is the largest?

a)

centimeter

b)

micrometer

c)

nanometer

d)

meter

3.

Some organisms are made of just one cell.

a)

True

b)

False

4.

Different microorganisms can be different sizes.

a)

True

b)

False

5.

Which one of these things is NOT microscopic?

a)

yeast cell

b)

molecule

c)

grain of salt

d)

blood cell

6.

Which of the following is the smallest?

a)

A blood cell

b)

A cheek cell

c)

A water molecule

d)

An egg cell

7.

What must we use in order to see our cheek cells?

a)

A hand lens

b)

A magnifying glass

c)

A telescope

d)

A microscope

8.

True or False: All cells are the same size.

a)

True

b)

False

9.

True or False: There are trillions of microorganisms on and inside of the human body.

a)

True

b)

False

10.

Which of these units of measure is the largest?

a)

centimeter

b)

micrometer

c)

nanometer

d)

meter

11.

Which of the following is an organism?

a)

Rock

b)

Tree

c)

Cloud

d)

Car

12.

Which of the following is a microorganism?

a)

Cell

b)

Human

c)

Molecule

d)

Bacteria

13.

Which unit of measure is the smallest?

a)

Micrometers

b)

Nanometers

c)

Millimeters

d)

Meters

14.

Most cells are measured in units called:

a)

MIllimeters

b)

Micrometers

c)

Nanometers

d)

Picometers

15.

When using our scale models we discovered that:

a)

Cells are much smaller than molecules

b)

Molecules are much smaller than cells

c)

Cells are larger than most organisms

d)

Molecules are made of cells

16.

Why might a scientist make a scale model of a cell?

a)

To display it

b)

To easily see or investigate the parts

c)

To make it smaller

d)

To grow more of them

17.

Which of the following organism is the smallest?

a)

An ant

b)

An eyelash mite

c)

An E-coli bacteria

d)

A head lice

18.

Blood cells are considered a microorganism:

a)

True

b)

False

19.

Plant and animal cells have the exact same parts.

a)

True

b)

False

20.

We might be able to see some microorganisms in our Petri dishes soon due to:

a)

The microorganisms growing in size

b)

The microorganisms changing shape

c)

The microorganisms growing in number

d)

The microorganisms moving closer together