Biochemistry: Carbohydrates And Lipids Question Preview (ID: 38891)
Review Of Carbon, Carbohydrates, Lipids.
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One function of a carbohydrate is
a) to provide the body with immediate energy.
b) to keep the heart functioning smoothly.
c) to store and transport genetic material.
d) to control the rate of reactions
The 3 types of carbohydrates are
a) monosaccharides, polysaccharides, disaccharides
b) glycerol, polysaccharide, fatty acid
c) disaccharides, monosaccharides,glycerol
d) glycerol, monosaccharides, polysaccharides
What elements make up a carbohydrate?
a) hydrogen, calcium, oxygen
b) carbon, potassium, oxygen
c) carbon, hydrogen, oxygen
d) calcium, potassium, oxygen
Glycogen, a polysaccharide in your muscles and liver, can be broken down into glucose molecules by
a) dehydration synthesis.
b) hydrolysis
c) isomerization
d) polymerization
Large molecules that form when many monosaccharides bond together are called
a) sugars
b) lipids
c) monosaccharides
d) polysaccharides
The polysaccharide that provides structural support in plants is called
a) glycogen
b) chitin
c) sucrose
d) cellulose
Single sugars, called monosaccharides, supply ____________ to cells.
a) energy
b) health
c) insulation
d) protection
Which of the following is a carbohydrate?
a) wax
b) DNA
c) glucose
d) oil
The elements that make up a carbohydrate occur in a _______________ ratio.
a) 1:1:1
b) 1:2:1
c) 1:3:1
d) 2:2:1
Lipids are made up of mostly ____________________, and a few ______ atoms.
a) C and H, O
b) C and O, H
c) C and N, H
d) N and H, O
Organic molecules are those that contain ______________ covalently bonded to other atoms.
a) oxygen
b) hydrogen
c) nitrogen
d) carbon
Lipids are molecules that contain
a) carbon, hydrogen, oxygen
b) carbon, hydrogen, oxygen, nitrogen
c) carbon, hydrogen, nitrogen
d) carbon, nitrogen, oxygen
Which of the following is NOT a function of lipids?
a) short-term energy storage
b) long-term energy storage
c) compose the cell membranes
d) chemical messenger molecules
The monomers of lipids are _________________ and ________________.
a) monosaccharides, disaccharides
b) fats, oils
c) glycerol, fatty acids
d) amino acids, glycogen
Lipids are _________________________, which means______________________.
a) hydrophilic, they don't mix with water.
b) hydrophobic, they don't mix with water.
c) polar, they mix well with water.
d) polar, they don't mix with water.
The cell membrane of your cells is made up of lipids called _______________.
a) phospholipids.
b) triglycerides.
c) fatty acids.
d) proteins.
A polymer is a large molecule made up of smaller units called
a) macromolecules.
b) cells.
c) isomers.
d) monomers.
What does it mean for a molecule to be hydrophobic?
a) water-fearing
b) water-loving
c) polar
d) it has a charge
If a lipid molecule is unsaturated, it will have a/an ______________ in the fatty acid tail.
a) extra carbon atom
b) phosphate group
c) double bond
d) extra oxygen atom
Which is TRUE of the structure of a lipid molecule?
a) It is generally a ring-shape.
b) It contains twice as many H as O atoms.
c) It usually contains a long chain of C and H atoms.
d) It is a double helix shape.
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