Campbell Essential Biology, 7th Edition by Simon & Dickey

TEST BANK For Campbell Essential Biology, 7th Edition by
Simon & Dickey
What is matter? - ANSWER:anything that has mass and occupies space

What are the three states of matter? - ANSWER:solid, liquid, gas

What are elements? - ANSWER:substances that cannot be broken down into other
substances

How many elements are naturally occurring elements? - ANSWER:92

How many elements are essential to life? - ANSWER:25

How many elements comprise 96% of total human body weight? - ANSWER:4

How many elements comprise the other 4% of total human body weight? -
ANSWER:7

What are the 4 most important elements to life? - ANSWER:Carbon, hydrogen,
nitrogen, oxygen

What are trace elements - ANSWER:Elements necessary for life in small amounts

example of trace element - ANSWER:Iodine (thyroid gland), Fluoride (prevents tooth
decay)

What are compounds? - ANSWER:Substances that contain two or more elements

example of compound - ANSWER:NaCl, H2O, DNA

What are atoms? - ANSWER:the smallest unit of matter that still retains the
properties of an element

What are 3 subatomic particles? - ANSWER:Protons, Electrons, Neutrons

What does the atomic number tell you? - ANSWER:the number of protons and
electrons in an element

What does mass measure? - ANSWER:Amount of material in an object

What does atomic mas tell you? - ANSWER:mass of protons and neutrons

What are isotopes? - ANSWER:Different forms of the same element