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WorksheetsHonors Biochem, Carbs, Lipids, N.A.
Total questions: 160
Worksheet time: 2hrs 25mins
How do the number of H atoms compare to the number of O atoms in a carbohydrate?
There are TWICE as many H atoms as there are O atoms
They have the same amount
There are THREE times as many H atoms as there are O atoms
There are TWICE as many O atoms as there are H atoms
What is the function of a carbohydrate?
Stores energy and structure
Movement and metabolism
Stores genetic information and makes proteins
Speeds up chemical reactions
All carbohydrates can be broken down into basic building blocks. Another word for this basic building block or base unit is
monosaccharide
water
polysaccharide
amino acid
Select any of the following that are functions (or roles) of carbohydrates.
energy source
cell structure
speed up reactions
genetic material
What is not a type of carbohydrate?
Lipid
Fiber
Starch
Sugar
Important to the structural integrity of plant cells, this is the single most abundant polysaccharide in the world.
Starch
Glycogen
Cellulose
Chitin
How many monomers are in a disaccharide?
One
Two
Three
Four
Twenty
Plants store energy in the form of ________, whereas animals store energy as _______.
Glycogen; Starch
Starch; Glycogen
Cellulose; Chitin
Chitin; Cellulose
fructose, glucose, ribose, and deoxyribose are all examples of
monosaccharides
polysaccharides
disaccharides
starch, chitin, cellulose, and glycogen are all examples of
monosaccharides
polysaccharides
disaccharides
lactose, sucrose, and maltose are all examples of
monosaccharides
disaccharides
polysaccharides
All organic compounds contain the element
carbon
nitrogen
phosphorus
sulfur
oxygen
a
b
c
d
These atoms form the backbone of most organic molecules.
Hydrogen chains
Carbon skeletons
Oxygen double bonds
Functional groupings
Which of the following is not one of the ways that carbon chains vary?
Number of double bonds
Number of branches
Number of rings
Length of the chain
Number of protons per atom
Molecules that include only hydrogen and carbon are called _____.
Isomers
Proteins
Hydrocarbons
Nucleotides
Which of the following means "water loving"?
Hydrophilic
Hydrophobic
Nonpolar
Radioactive
Chemical groups that affect a molecule by participating in chemical reactions are called _________.
Functional groups
Isomers
Monomers
Fats
Which of the following is commonly found on alcohol compounds?
Amino group
Hydroxyl group
Carboxyl group
Carbonyl group
The group pictured here is which of the following?
Amino group
Hydroxyl group
Carboxyl group
Carbonyl group
The group pictured here is which of the following?
Amino group
Sulfhydryl group
Carboxyl group
Carbonyl group
Phosphate group
The group pictured here is which of the following?
Amino group
Sulfhydryl group
Methyl
Carbonyl group
Phosphate group
The group pictured here is which of the following?
Amino group
Sulfhydryl group
Methyl
Carbonyl group
Phosphate group
The group pictured here is which of the following?
Amino group
Sulfhydryl group
Carboxyl group
Carbonyl group
Phosphate group
This is an example of which type of reaction?
Hydrolysis
Dehydration
None of these
Joining
which statement about hydrocarbons is true?
they contain only hydrogen, carbon, and functional groups
they may have double bonds and different shapes
they are only formed in rings
they can only form single bonds
Which is the only functional group that is non-polar?
methyl
carboxyl
carbonyl
amino
Water is needed break a polysaccharide down into a disaccharide and a monosaccharide. This process is called
hydrolysis
dehydration synthesis
lysing a sugar
desaccharization
prohydrolysis
What is the molecular formula of carbs?
CnH2On
C2nH2nOn
CnHnOn
C2nHnOn
One function of carbohydrate is
To provide the body with immediate energy
Store energy efficiently
make up most of the structure of living
cells
reproduction and growth of cells and new organisms.
water vapor containing complex organic compounds, which may indicate the presence of life. Which of the following elements is most likely abundant in the organic compounds in the water vapor?
Which is Table Sugar:
Cellulose
Sucrose
Glucose
Lactose
Which is NOT a carbohydrate?
Butter
Potatoes
Sugar
Rice
What functional group is shown?
amino
hydroxyl
carboxyl
sulfhydryl
What functional group is shown?
hydroxyl
carboxyl
methyl
carbonyl
What functional group is shown?
carboxyl
carbonyl
hydroxyl
amino
What functional group is shown?
carbonyl
hydroxyl
carboxyl
amino
sulfhydryl
hydroxyl
amino
phosphate
What functional group is shown?
carboxyl
phosphate
hydroxyl
amino
Which functional group is NOT present?
Amino
Carboxyl
Hydroxl
Sulfhydryl
What is a functional group?
Group of atoms that give specific characteristics to a molecule
Group of molecules that give specific characteristics to an atom
Group of molecules that make up a group of atoms
Group of atoms that give specific characteristics to an element
Lipids are composed of which atoms?
Hydrogen, Oxygen, Nitrogen
Hydrogen, Oxygen, Carbon
Oxygen, Nitrogen, Carbon
Oxygen, Nitrogen, Hydrogen
What is the difference between a saturated fat and an unsaturated fat?
Saturated fat is solid at room temperature and unsaturated fat is liquid at room temperature
Saturated fat has a single bond and unsaturated fat has a double bond
Saturated fats are bad for you and unsaturated fats are better for you.
All of the above
What is an example of a saturated fat?
Olive oil
Butter
Corn oil
Steroids
What is an example of an unsaturated fat?
Butter
Coconut Oil
Olive Oil
Steroids
True or False: Lipids are insoluble
True
False
Which diagram is a triglyceride?
True or False: A fatty acid with a double bond is a saturated fatty acid
True
False
Under basic conditions, lipid molecule hydrolysis produces
Glycerol + Water
Glycerol + Fatty acids
Glycerol + Fatty acids
Water + Fatty acids
Some animals synthesize a special polysaccharide _______ which forms a protective exoskeleton shell .
Chitin
Cartilage
Skull
Cuticle
The cholesterol viewed as bad because it builds up in the artery walls:
HDL
LDL
In general, lipids dissolve in water?
true
false
Which of the following are properties of lipid?
Hydrophilic
Hydrophobic
Polar
Nonpolar
Made up mostly of hydrocarbon chains
Which of the following are functions of lipids?
Formation of cell membrane and hormones
Immediately available energy
Energy storage and insulation
Formation of muscle tissue
Protein storage
Which of the following are types of lipids
Fats and oils
Phospholipids and steroids
Disaccharides and Polysaccharides
Waxes
Polypeptides
What is the chemical composition of fat molecules?
1 glycerol molecule and 3 fatty acids
1 fatty acid and 3 glycerol molecules
1 glycerol molecule, 2 fatty acids, and 1 phosphate group
3 cyclohexanes and 1 cyclopentane
What is the chemical composition of a phospholipid?
1 glycerol molecule and 3 fatty acids
1 fatty acid and 3 glycerol molecules
1 glycerol molecule, 2 fatty acids, and 1 phosphate group
3 cyclohexanes and 1 cyclopentane
Which molecule is represented in this image?
Fatty acid
Wax
Glycerol
Phosphate group
What type of molecule is represented in this image?
Fatty acid
Wax
Steroid
Phosphate group
What does it mean for a fatty acid to be saturated?
It contains only double bonds
It contains only single bonds
It contains at least one double bond
It contains at least one triple bond
What does it mean for a fatty acid to be unsaturated?
It contains only double bonds
It contains only single bonds
It contains at least one double bond
It contains at least one triple bond
Unsaturated fats are less tightly packed than saturated fats and therefore have a lower melting point.
True
False
Which reaction is needed to form fat molecules?
Dehydration
Hydration
Hydrolysis
Dehydrogenation
What type of reaction is used to break down fats into glycerol and fatty acids?
Hydration
Dehydration
Hydrogenation
Hydrolysis
Which molecule is shown?
lipid
protein
nucleic acid
carbohydrate
What is the function of nucleic acids?
Energy
Energy Storage
Building Cell Structures
Information Storage
What are 2 types of nucleic acids?
Fatty Acids and Glycerol
DNA and RNA
Amino Acids and Enzymes
Monosaccharides and Polysaccharides
Which of the following is NOT part of a nucleotide?
Nitrogenous Base
Phosphate Group
Pentose Sugar
Fatty Acid
Which base is ONLY found in DNA?
Cytosine
Guanine
Thymine
Adenine
Which base is only found in RNA?
Uracil
Thymine
Adenine
Guanine
The image shown is of
DNA
RNA
Fatty Acids
ATP
What molecule is shown here?
Peptide
Amino Acid
Nucleotide
Carbohydrate
What is A?
Phosphate Group
Pentose Sugar
Nitrogenous Base
Adenosine Triphosphate
What is C?
Phosphate Group
Pentose Sugar
Adenosine Triphosphate
Nitrogenous Base
