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15
×
Particles that are found in the atomic nucleus are:
Protons and neutrons
Neutrons and electrons
Protons and electrons
Protons, neutrons and electrons
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15
×
Why is solid water (ice) less dense than liquid water?
The hydrogen bonds between water molecules are spaced out.
Hydrogen bonds are not able to be formed.
Liquid water does not form hydrogen bonds.
It is actually more dense.
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15
×
What does the atomic number represent?
number of neutrons
total number of electrons and protons combined
total number of protons and neutrons
number of protons
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15
×
Proteins in our skin, hair, and nails are called what?
Transport proteins
Structural proteins
Regulatory proteins
Storage proteins
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15
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All of the following statements are true, EXCEPT _____.
mammals store carbohydrates in the form of glycogen
pasta and cereals are good sources of carbohydrates
starch is composed of amylopectin and amylose
sugars are found only in plants
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15
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Hydrogen bonds occur between hydrogen in one polar molecule and _____ in another polar molecule. I. Oxygen II. Fluorine III. Nitrogen
II only
I, II, and III
I and II only
III only
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15
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When a protein makes it easier for a biological reaction to happen, it is acting as _____.
a structural protein
a transporter
a messenger
an enzyme
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15
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A polar molecule, such as the one involved in a hydrogen bond, is sometimes called _____.
a covalent bond
a dipole
simply, hydrogen
a tripole
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lifesaver
Give 25 points!
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shark
Other team loses 25 points!
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fairy
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25
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thief
Give points!
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25
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banana
Go to last place!
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magnet
Take 15 points!
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gift
Win 15 points!
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baam
Lose 25 points!
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15
×
Which of the following type of bond normally forms between two non-metal atoms?
Plastic
Covalent
Ionic
Metallic
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15
×
Which of the following roles do lipids NOT play in our bodies?
Generate heat
Store energy
Act as hormones
Make up part of our cell membranes
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15
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In covalently bonded molecules, oxidation and reduction are determined by:
enzymes and coenzymes
reactants that are broken down
uneven sharing of electrons
products that are synthesized
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heart
Other team wins 25 points!
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fairy
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15
20
25
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gift
Win 25 points!
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baam
Lose 25 points!
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15
×
Proteins are biological molecules made of _____.
sugars
nucleotides
glycerol
amino acids
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15
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A hydrogen bond is _____.
a paramolecular force
a perimolecular force
an intramolecular force
an intermolecular force
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