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- 1. Multiple Choice
Electrons are subatomic particles that have a _____________ charge.
negative
positive
neutral
- 2. Multiple Choice
Protons are subatomic particles that have a _____________ charge.
negative
positive
neutral
- 3. Multiple Choice
Neutrons are subatomic particles that have a _____________ charge.
negative
positive
neutral
- 4. Multiple Choice
Two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in atomic mass but not in chemical properties
atom
isotope
element
electron
- 5. Multiple Choice
What is an ion?
ONLY a positively charged atom or molecule
ONLY a negatively charged atom or molecule
an atom or molecule with a charge
a neutral atom or molecule
- 6. Multiple Choice
Atoms in molecules are held together by covalent bonds. Atoms in a covalent bond ...
share the electrons
transfer the electrons to the more negative atom
transfer the electrons to the less negative atom
push all electrons away from both atoms.
- 7. Multiple Choice
Atoms in ionic solids are held together by ionic bonds. Ionic bonds form when...
electrons are transferred from one atom to another
electrons are shared
electrons are rejected by both atoms
electrons aren't used in bonding
- 8. Multiple Choice
A molecule that is attracted to water (likes water)
hydrophobic
hydrophilic
hydrogen bonding
atoms
- 9. Multiple Choice
A molecule that is not attracted to water (fears water)
Hydrophobic
Hydrophilic
Hydrogen bonding
atoms
- 10. Multiple Choice
Polar molecules (example: water) are attracted to each other. Hydrogen bonded to oxygen or nitrogen atoms are attracted to nearby oxygen or nitrogen. This strong attraction is called
hydrogen bonding
covalent bonding
ionic bonding
atoms
- 11. Multiple Choice
What are the building blocks of carbohydrates?
monosaccharides
disaccharides
polysaccharides
polymers
- 12. Multiple Choice
Glucose is an example of a...
monosaccharide
disaccharide
polysaccharide
- 13. Multiple Choice
Made of two monosaccharides bonded together
dimonosaccharides
disaccharides
trisaccharides
polysaccharides
- 14. Multiple Choice
When we eat disaccharides, our cells do what first before energy is obtained?
make the disaccharide a polysaccharide
break the disaccharides down to monosaccharides
leave the disaccharides as is, and obtain energy
throw the disaccharide out, because we can't use it.
- 15. Multiple Choice
What is the monomer of Cellulose?
Glucose
Galactose
Lactose
Maltose
- 16. Multiple Choice
Cellulose makes up the cell wall of all plants. When humans and animals consume cellulose...
We cannot digest or break cellulose into glucose
We break cellulose down and obtain energy
We leave cellulose as a polysaccharide to obtain energy
Cellulose is not found in a plant
- 17. Multiple Choice
Plants store extra sugar as
starch
cellulose
glycogen
glucose
- 18. Multiple Choice
Fructose is found in large amounts in
fruits
meats
grains
milk
- 19. Multiple Choice
What is a chain of many monosaccharides bonded together?
monomer
monosaccharide
disaccharide
polysaccharide
- 20. Multiple Choice
Humans store excess sugar in muscle and liver cells in the form of
glucose
glycogen
starch
cellulose
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