Microbiology with Diseases by Taxonomy (5th Edition)
Microbiology with Diseases by Taxonomy (5th Edition)
5th Edition
ISBN: 9780134019192
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 4, Problem 1MC
Summary Introduction

Introduction:

Decimeter, millimeter, nanometer, and micrometer are the units of length and distance. These are the units used to measure small organisms or small distance travelled. These units are smaller than 1 meter.

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Answer to Problem 1MC

Correct answer:

Nanometer is the smallest unit of measurement out of the given options.

Therefore, option (c) is correct.

Option (c) is given as “nanometer”.

Explanation of Solution

Justify reasons for the correct statement:

1 nanometer is equivalent to 1109 meter which is smaller than 1 decimeter, 1 millimeter, and 1 micrometer.

Hence, option (c) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “decimeter”.

1 decimeter is equivalent to 0.1mor101m. Hence, it is a wrong answer.

Option (b) is given as “millimeter”.

1 millimeter is equivalent to 103m. Hence, it is a wrong answer.

Option (d) is given as “micrometer”.

1 micrometer is equivalent to 106m. Hence, it is a wrong answer.

Hence, options (a), (b), and (d) are incorrect.

Conclusion

Nanometer is the smallest unit of measurement as 1nm=109m. 1 decimeter equals to 0.1mor101m, 1 millimeter equals to 103m, and 1 micrometer equals to 106m

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