Environmental Science - Chapter 3

Quiz
•
Science
•
12th Grade
•
Medium
+6
Standards-aligned
LAURA ELISE HLAVINKA
Used 46+ times
FREE Resource
24 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
Proteins, nucleic acids, carbohydrates, and lipids are all examples of
atoms.
inorganic compounds.
macromolecules.
elements.
Answer explanation
Macromolecules are the BIG molecules needed for different processes in the body.
2.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
The basic unit of matter is
an element.
an atom.
a molecule.
a macromolecule.
Answer explanation
Atoms are the basic building blocks of life. They make up elements.
3.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
The measure of acidity or alkalinity (basicity) of a solution is known as
pH.
pOH.
titration.
compound.
Answer explanation
pH is a scale that measures how acidic or basic something is; below 7 is an acid (more H+), above 7 is a base (less H+), and neutral is 7 (equal H+).
4.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
Out of all of the elements on the periodic table, how many are naturally occurring?
20
114
10
92
5.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
All of the following are part of a carbohydrate EXCEPT
carbon.
hydrogen.
phosphorus.
oxygen.
Answer explanation
Carbohydrates are macromolecules that contain carbon, hydrogen, and oxygen.
6.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
A substance is considered an acid if its pH is
equal to 7.
above 7.
below 7.
equal to 14.
Answer explanation
Acids have a pH below 7.
7.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
Which of the following is an example of an inorganic compound?
methane
glucose
DNA
salt
Answer explanation
Inorganic compounds do not contain Carbon - Carbon bonds. Salt is NaCl. Methane is CH4 (organic). Glucose is C6H12O6 (organic). DNA is deoxyribonucleic acid (organic).
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