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The Molecules and Their Composition Quiz

10 Questions

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The Molecules and Their Composition Quiz

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Questions and Answers

Which unit of measurement can be used to measure the size of molecules?

Meter

Centimeter

Nanometer (correct)

Angstrom

What is the molecular weight of water (H2O)?

2 amu

18 amu (correct)

16 amu

20 amu

Which molecule is the most abundant in the human body?

Protein

Carbohydrate

Lipid

Water (correct)

What is the largest macromolecule in the human body?

Protein Signup and view all the answers

Which atoms are present in proteins?

Carbon, Hydrogen, Oxygen, Nitrogen, Sulfur Signup and view all the answers

Which of the following statements is true about molecules?

Molecules are made up of two or more atoms bonded together Signup and view all the answers

What is the role of carbon in living organisms?

Carbon is a building block of macromolecules Signup and view all the answers

Which of the following is a criteria for a living organism?

All of the above Signup and view all the answers

How do scientists measure the size of molecules?

Using nanometers or angstroms Signup and view all the answers

Which of the following is true about the size of molecules?

Proteins are larger than water molecules Signup and view all the answers