Biology 02 The Chemical Foundation of Life MCQ

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Photo depicts Earth from space.
This NASA image is a composite of several satellite-based views of Earth. To make the whole-Earth image, NASA scientists combine observations of different parts of the planet. (credit: NASA/GSFC/NOAA/USGS)

Viewed from space, Earth offers no clues about the diversity of life forms that reside there. The first forms of life on Earth are thought to have been microorganisms that existed for billions of years in the ocean before plants and animals appeared. The mammals, birds, and flowers so familiar to us are all relatively recent, originating 130 to 200 million years ago. Humans have inhabited this planet for only the last 2.5 million years, and only in the last 200,000 years have humans started looking like we do today.

Unit 1. The Chemistry of Life MCQ Multiple Choices Questions Quiz Test Bank

Chapter 02: The Chemical Foundation of Life

2.1 Atoms, Isotopes, Ions, and Molecules: The Building Blocks

2.2 Water

2.3 Carbon

Quiz PDF eBook: 
Biology 02 The Chemical Foundation of Life MCQ
Download Biology 02 Quiz PDF eBook
10 Pages
2015
English US
Educational Materials



Sample Questions from the Biology 02 The Chemical Foundation of Life MCQ Quiz

Question: Which type of bond represents a weak chemical bond?

Choices:

hydrogen bond

atomic bond

covalent bond

nonpolar covalent bond

Question: Which of the following is not a functional group that can bond with carbon?

Choices:

sodium

hydroxyl

phosphate

carbonyl

Question: A molecule that binds up excess hydrogen ions in a solution is called a(n) ________.

Choices:

acid

isotope

base

donator

Question: Potassium has an atomic number of 19. What is its electron configuration?

Choices:

shells 1 and 2 are full, and shell 3 has nine electrons

shells 1, 2 and 3 are full and shell 4 has three electrons

shells 1, 2 and 3 are full and shell 4 has one electron

shells 1, 2 and 3 are full and no other electrons are present

Question: If xenon has an atomic number of 54 and a mass number of 108, how many neutrons does it have?

Choices:

54

27

100

108

Question: Atoms that vary in the number of neutrons found in their nuclei are called ________.

Choices:

ions

neutrons

neutral atoms

isotopes

Question: When acids are added to a solution, the pH should ________.

Choices:

decrease

increase

stay the same

cannot tell without testing

Question: Which of the following statements is not true?

Choices:

Water is polar.

Water stabilizes temperature.

Water is essential for life.

Water is the most abundant molecule in the Earth's atmosphere.

Question: Which of the following statements is true?

Choices:

Acids and bases cannot mix together.

Acids and bases will neutralize each other.

Acids, but not bases, can change the pH of a solution.

Acids donate hydroxide ions (OH-); bases donate hydrogen ions (H+).

Question: Each carbon molecule can bond with as many as________ other atom(s) or molecule(s).

Choices:

one

two

six

four

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Source:  OpenStax College. Download for free at http://cnx.org/content/col11448/latest/
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