WGU C190 Intro to Biology practice test|| || || || || || ||
questions with answers || ||
Fats and oils are composed of - CORRECT ANSWERS ✔✔Fatty acids and
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glycerol
Fatty acids can naturally be saturated or unsaturated. A saturated fatty acid
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has - CORRECT ANSWERS ✔✔.
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All single covalent bonds
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Triglycerides, a type of fat, are composed of what two subunits? - CORRECT
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ANSWERS ✔✔Fatty acids and glycerol || || || ||
What would you have to do to make a fat from the fatty acid shown above? -
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CORRECT ANSWERS ✔✔Attach it to a glycerol along with two other fatty
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acids.
If one or more of the fatty acids in a triglyceride include omega-3 fatty acids,
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what can you predict about this substance at room temperature? - CORRECT
|| || || || || || || || || || || ||
ANSWERS ✔✔It is a liquid oil || || || || ||
What kinds of molecules are the major fuel for the salmon's long trip? -
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CORRECT ANSWERS ✔✔Triglycerides (fats / oils)
|| || || || ||
, Based on your knowledge of the structure of triglycerides, what products
|| || || || || || || || || || ||
would you expect to result from the complete hydrolysis of a fat molecule?
|| || || || || || || || || || || || ||
More than one is correct. - CORRECT ANSWERS ✔✔Fatty acids and glycerol
|| || || || || || || || || || ||
The blubber layer helps insulate mammals and birds that live in cold water;
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fat does not conduct heat very quickly. Applying what you know about lipids,
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what is the main advantage of covering feathers or fur in oil? - CORRECT
|| || || || || || || || || || || || || ||
ANSWERS ✔✔Oil sheds water and keeps underlying layers of fur or downy
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feathers dry. ||
Another type of lipid that composes cells are called phospholipids.
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Phospholipids differ from other lipids because they - CORRECT ANSWERS || || || || || || || || || ||
✔✔Contains a hydrophobic and hydrophilic end || || || || ||
Highly simplified diagram of a membrane's structure is made up of -
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CORRECT ANSWERS ✔✔Phospholipids || ||
Which part of the molecules is hydrophilic? - CORRECT ANSWERS ✔✔The
|| || || || || || || || || || ||
heads
Ions of salt (sodium, NA+, and chloride, Cl−) are highly hydrophilic. Will
|| || || || || || || || || || || ||
they easily pass through the layer to enter or leave a cell? - CORRECT
|| || || || || || || || || || || || || ||
ANSWERS ✔✔No. ||
What are molecules? - CORRECT ANSWERS ✔✔Molecules are made of
|| || || || || || || || || ||
atoms
questions with answers || ||
Fats and oils are composed of - CORRECT ANSWERS ✔✔Fatty acids and
|| || || || || || || || || || || ||
glycerol
Fatty acids can naturally be saturated or unsaturated. A saturated fatty acid
|| || || || || || || || || || || ||
has - CORRECT ANSWERS ✔✔.
|| || || ||
All single covalent bonds
|| || ||
Triglycerides, a type of fat, are composed of what two subunits? - CORRECT
|| || || || || || || || || || || || ||
ANSWERS ✔✔Fatty acids and glycerol || || || ||
What would you have to do to make a fat from the fatty acid shown above? -
|| || || || || || || || || || || || || || || || ||
CORRECT ANSWERS ✔✔Attach it to a glycerol along with two other fatty
|| || || || || || || || || || || ||
acids.
If one or more of the fatty acids in a triglyceride include omega-3 fatty acids,
|| || || || || || || || || || || || || || ||
what can you predict about this substance at room temperature? - CORRECT
|| || || || || || || || || || || ||
ANSWERS ✔✔It is a liquid oil || || || || ||
What kinds of molecules are the major fuel for the salmon's long trip? -
|| || || || || || || || || || || || || ||
CORRECT ANSWERS ✔✔Triglycerides (fats / oils)
|| || || || ||
, Based on your knowledge of the structure of triglycerides, what products
|| || || || || || || || || || ||
would you expect to result from the complete hydrolysis of a fat molecule?
|| || || || || || || || || || || || ||
More than one is correct. - CORRECT ANSWERS ✔✔Fatty acids and glycerol
|| || || || || || || || || || ||
The blubber layer helps insulate mammals and birds that live in cold water;
|| || || || || || || || || || || || ||
fat does not conduct heat very quickly. Applying what you know about lipids,
|| || || || || || || || || || || || ||
what is the main advantage of covering feathers or fur in oil? - CORRECT
|| || || || || || || || || || || || || ||
ANSWERS ✔✔Oil sheds water and keeps underlying layers of fur or downy
|| || || || || || || || || || || ||
feathers dry. ||
Another type of lipid that composes cells are called phospholipids.
|| || || || || || || || || ||
Phospholipids differ from other lipids because they - CORRECT ANSWERS || || || || || || || || || ||
✔✔Contains a hydrophobic and hydrophilic end || || || || ||
Highly simplified diagram of a membrane's structure is made up of -
|| || || || || || || || || || || ||
CORRECT ANSWERS ✔✔Phospholipids || ||
Which part of the molecules is hydrophilic? - CORRECT ANSWERS ✔✔The
|| || || || || || || || || || ||
heads
Ions of salt (sodium, NA+, and chloride, Cl−) are highly hydrophilic. Will
|| || || || || || || || || || || ||
they easily pass through the layer to enter or leave a cell? - CORRECT
|| || || || || || || || || || || || || ||
ANSWERS ✔✔No. ||
What are molecules? - CORRECT ANSWERS ✔✔Molecules are made of
|| || || || || || || || || ||
atoms
