Q: A researcher needs to convert 1.2 centimeters (cm) to meters (m). Which is the correct conversion?

$$1.2 \times 10$$^{-2}$$ = 0.012 m$$

Q: A scientist has 0.002 grams (g) of a substance. How many micrograms (μg) is this?

$$0.002 \times 10^6$ = 2000$$ μg

Q: A bottle contains 1.5 L of water. How many microliters (μL) does it contain?

$$1.5 \times 10^6$ = 1,500,000$$ μL

Q: A sample weighs 0.45 kg. How many milligrams (mg) is this?

$$0.45 \times 10^6$ = 450,000 mg$$

Q: Which of the following best describes the relationship between milliliters (mL) and liters (L)?

1 mL = $$1 \times 10$$^{-3}$$ L

Question 1

Which of the following is the correct scientific notation for 1,000,000 microliters (μL)?

Accepted Answer

$$1 	imes 10^6$ μL

Question 2

A scientist needs to convert 2.5 kilograms (kg) to grams (g). Which equation should they use, and what is the correct answer?

Accepted Answer

$$2.5 	imes 10^3$ = 2500 g$$

Question 3

Which metric prefix represents a factor of $$1 	imes 10$$^{-6}$$?

Accepted Answer

Micro-

Question 4

A laboratory technician measures 0.005 L of a solution. How many milliliters (mL) is this?

Accepted Answer

$$0.005 	imes 10^3$ = 5 mL$$

Question 5

Which of the following is the most accurate tool for measuring 15 mL of a liquid in a laboratory?

Accepted Answer

Graduated cylinder

Question 6

If you need to measure exactly 2.00 mL of a reagent, which laboratory instrument should you use?

Accepted Answer

Pipet

Question 7

A student reads the meniscus of a liquid in a graduated cylinder from above the line. What is the likely result?

Accepted Answer

The measured volume will be too high.

Question 8

Convert 0.75 meters (m) to millimeters (mm).

Accepted Answer

$$0.75 	imes 10^3$ = 750 mm$$

Question 9

Which of the following statements about the metric system is TRUE?

Accepted Answer

The basic unit of length is the meter (m).

Question 10

A researcher needs to convert 1.2 centimeters (cm) to meters (m). Which is the correct conversion?

Accepted Answer

$$1.2 	imes 10$$^{-2}$$ = 0.012 m$$

Question 11

Which of the following is the correct order from largest to smallest unit?

Accepted Answer

Millimeter, micrometer, nanometer

Question 12

A scientist has 0.002 grams (g) of a substance. How many micrograms (μg) is this?

Accepted Answer

$$0.002 	imes 10^6$ = 2000$$ μg

Question 13

Which temperature is the freezing point of water in the metric system?

Accepted Answer

0 $$^\circC$$

Question 14

A bottle contains 1.5 L of water. How many microliters (μL) does it contain?

Accepted Answer

$$1.5 	imes 10^6$ = 1,500,000$$ μL

Question 15

Which of the following best explains why the metric system is preferred in scientific research?

Accepted Answer

It is based on powers of ten, making conversions easier.

Question 16

A sample weighs 0.45 kg. How many milligrams (mg) is this?

Accepted Answer

$$0.45 	imes 10^6$ = 450,000 mg$$

Question 17

Which of the following is NOT a basic unit in the metric system?

Accepted Answer

Inch (in)

Question 18

A researcher needs to measure 0.000001 meters. Which metric prefix should they use?

Accepted Answer

Micro-

Question 19

If you are converting from a smaller unit to a larger unit in the metric system, what should you do with the decimal point?

Accepted Answer

Move the decimal to the left.

Question 20

Which of the following best describes the relationship between milliliters (mL) and liters (L)?

Accepted Answer

1 mL = $$1 	imes 10$$^{-3}$$ L

Lab 1: The Metric System and Measurement in Biology

Study Guide - Practice Questions

Study Guide - Flashcards