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WorksheetsStructure and Function of Macromolecules
Total questions: 31
Worksheet time: 16mins
What effect do enzymes have on the rate (speed) of a reaction?
Increase the speed
Monitor the speed
Decrease the speed
Have no effect on the speed
Enzymes bring about their effect on the rate of reaction by
Increasing activation energy
Lowering the energy of the products
Lowering the activation energy
Lowering the energy of the reactants
Which of the following is correct?
Exergonic reactions release energy
Exergonic reactions absorb energy
Endergonic reactions release energy
Endergonic reactions have more energy in the reactants
In the forming of nonpolar covalent bonds there is
Donation of electrons
Unequal sharing of electrons
Equal sharing of protons and electrons
Equal sharing of electrons
For a dissacharide to form from two monosacharides
The presence of cations and anions form the bond
A disassembling of molecules by hydrolysis must occur
The removal of water must occur
The addition of water must occur
A polysaccharide that is formed in liver and muscle cells is
Starch
Cellulose
Sucrose
Glycogen
A fatty acid that contains 3 double bonds would be
Saturated
Unsaturated
Carboxylated
Methylated
Proteins do all of the following except
Antibodies
Transport
Receptors
Storage
The 20 amino acids differ from each other in the
Number of central carbon atoms
Size of the amino group
Nature of the R group
Number of carboxyl groups
Molecules that store genetic information are
Proteins
Nucleic acids
Carbohydrates
Lipids
All are characteristics of carbon except
Has high electronegativity
Forms 4 bonds
Forms a tetrahedral structure
Forms single, double, and triple bonds
One would expect a saturated fatty acid to
Have no double bonds and be made by a plant
Have double bonds and be made by a plant
Have no double bonds and be made by an animal
Have double bonds and be made by an animal
In dehydration synthesis
Water is added to form bonds between monomers
Water is removed to form bonds between monomers
Water is added to break bonds between monomers
Water is removed to break bonds between monomers
In hydrolysis
Water is added to break bonds between monomers
Water is removed to form bonds between monomers
Water is added to form bonds between monomers
Water is removed to break bonds between monomers
Examples of Nucleic acids include all of the following except
Ribonucleic acid
Methylated acetic acid
Deoxyribonucleic acid
Adenosine tri phosphate
The functional group -C=O is
Carboxyl (carboxylic acid)
Carbonyl
Methyl
Amino
The functional group -COOH is
Carboxyl (carboxylic acid)
Carbonyl
Methyl
Hydroxyl
The functional group - CH3 is
Carbonyl
Sulfhydryl
Methyl
Amino
The functional group -OH is
Oxyl
Hydroxyl
Methyl
Amino
The functional group - NH2 is
Nitryl
Amino
Methyl
Sulfhydryl
The functional group - PO4 is
Phosphyl
Methyl
Phosphate
Carboxyl
The functional group - SH is
Shisyl
Hydroxyl
Methyl
Sulfhydryl
Soluble inorganic compounds whose ions conduct a current is solution are called
Deoxyribonucleic acid
Proteins
Hydrophobic
Electrolytes
Molecules such as estrogen and testosterone are classified as
Carbohydrates
Lipids
Proteins
Nucleic acids
Because lipids have a high carbon to low oxygen ratio, they are characteristically
Nonpolar
Hydrophilic
Hydrophobic
Both nonpolar and hydrophobic
Carbohydrates, Lipids, Proteins, and Nucleic acids are classified as
Inorganic molecules
Organic molecules
Salts
Electrolytes
The chemical makeup of a lipid molecule is different from a carbohydrate in that the lipid molecule:
Contains twice as much oxygen as the carbohydrate
Contains much less oxygen than a carbohydrate having the same number of carbon atoms
Contains equal amounts of carbon and oxygen in its molecular structure
The chemical makeup is the same
The "currency of the cell", the energy form that is made in the mitochondria and usable to do work in our bodies is
Testosterone or Estrogen
Phospholipids
ATP, Adenosine tri phosphate
DNA, deoxyribonucleic acid
Each of the following is an example of an inorganic compound except
Minerals
Electrolytes
Water
Glucose
Which of the following statements about water is not correct?
Is a polar molecule
Makes up about 2/3 rds of body mass
Has a relatively low heat capacity
Is sometimes known as the universal solvent
The group of organic compounds containing carbon, hydrogen, and oxygen in a near 1:2:1 ratio is defined as
Carbohydrates
Lipids
Proteins
Nucleic Acids
