WorksheetsTopics 1.2 - 1.6
Total questions: 63
Worksheet time: 36mins
Dehydration synthesis leads to the formation of what?
monomers
Polymers
Carbs only
Water only
What makes up the outer layer of some insects?
Carbohydrate
Protein
RNA
Triglyceride
Which type of body cell would have a higher amount of cholesterol in its membrane
A cartilage cell
A liver cell
A red blood cell
A spleen cell
What is a function of proteins in cells?
Energy storage
gene storage and access
Membrane fluidity
Structure
What type of protein facilitates or accelerates chemical reactions?
enzyme
hormone
membrane transport protein
tRNA molecule
Where is the linkage made that combines two amino acids?
Between the R group of one amino acid and the R group of the second
Between the carboxyl group of one amino acid and the amino group of the other
Between the six-carbon of both amino acids
Between the nitrogen atoms of the amino groups in the amino acids
The alpha-helix and the beta-pleated sheet are part of which protein structure?
primary
secondary
tertiary
quaternary
Which structural level of proteins is most often associated with their biological function?
primary
secondary
tertiary
quaternary
What may cause a protein to denature?
Changes in pH
High temperatures
The addition of some chemicals
All of the answers are correct
What is a protein’s chaperone?
A chemical that assists the protein in its enzymatic functions
A second protein that completes the quaternary structure
A chemical that helps the protein fold properly
A chemical that functions as a cofactor for the protein
What are the building blocks of nucleic acids?
Nitrogenous base
Nucleotide
Peptides
Sugars
What may a nucleotide of DNA contain?
Ribose, uracil, and a phosphate group
Deoxyribose, uracil, and a phosphate group
Deoxyribose, thymine, and a phosphate group
Ribose, thymine, and a phosphate group
What is DNA’s structure described as?
A step ladder
A double helix
A tertiary protein-like structure
A barber pole
What is found in RNA that is NOT in DNA?
Deoxyribose and adenine
Fructose and thymine
Glucose and quinine
Ribose and uracil
Where is the largest amount of DNA found in a eukaryotic cell?
Attached to the inner layer of the cell membrane
In the nucleus
In the cytoplasm
On ribosomes
Dehydration synthesis leads to the formation of what?
Monomers
Polymers
Carbohydrates only
Water only
During the breakdown of polymers, which reaction takes place?
Condensation
Covalent bond
Dehydration
Hydrolysis
In the metabolism of the cell, why is hydrolysis used?
Hydrolysis is used to break down polymers.
Hydrolysis is used to form linkages in DNA.
Hydrolysis is used to produce proteins.
Hydrolysis is used to synthesize new macromolecules.
Cellulose and starch are examples of —
disaccharides
lipids
monosaccharides
polysaccharides
What is structurally different about cellulose when compared to starch?
An extra hydrogen atom is left on the monomer.
β -1,4 glycosidic linkages are used.
α -1,6 glycosidic linkages are used.
An extra hydroxyl group is removed during synthesis.
What is cholesterol specifically classified as?
lipid
phospholipid
steroid
wax
Which fat has the least number of hydrogen atoms?
trans fat
saturated fat
unsaturated fat
wax
Based on the reaction shown, which of the following statements is true?
The reverse of this reaction requires the removal of water from the reaction in order to break down the dimer.
If water is not added to the reaction, hydrolysis will not occur.
The reverse of this reaction requires the addition of water in order to build the dimer.
If water is not added to the reaction, dehydration synthesis will not occur.
The human body is capable of digesting the complex polymer starch into simpler subunits. This digestive process requires the presence of water and the enzyme amylase in order to break down starch into maltose. This is depicted below. Which of the following statements best describes the digestion of starch into maltose?
This is a hydrolysis reaction that requires water to break down a complex polymer into simpler subunits.
This is a dehydration synthesis reaction that produces water when forming a complex polymer from simpler subunits.
This is a dehydration synthesis reaction that requires water to form a complex polymer from simpler subunits.
This is a hydrolysis reaction that forms water by breaking down a complex polymer into simpler subunits.
In the reaction below, two glucose monomers combine to form the dimer maltose. Which of the following best explains the process of this reaction?
To form a covalent bond, the monomers underwent a hydrolysis reaction.
An ionic bond forms through dehydration synthesis, which combines the two glucose monomers and forms the maltose dimer.
Water is added to the reaction to promote the formation of a covalent bond between the glucose monomers.
A covalent bond forms through dehydration synthesis, which results in the formation of maltose and water.
Which of the following questions would a researcher most likely ask if they wanted to know whether a hydrolysis reaction or a dehydration synthesis reaction is occurring?
Is an enzyme involved in the reaction?
Are monomers identical to one another?
Is water a reactant or product of the reaction?
Which polymer is involved in the reaction?
Which of the following best describes the role that water plays in the reaction depicted below?
In the reverse of this reaction, water is used to promote hydrolysis.
Water is a product of this dehydration synthesis reaction.
When water is added, the two monomers form a covalent bond that holds the dimer together.
As a reactant, water cleaves the covalent bond that holds the dimer together.
If water was removed from the reaction depicted above, which of the following describes the most likely outcome of this removal?
The reverse of the reaction would occur and the dimer would spontaneously form from the two monomers.
The covalent bond that holds the dimer together would not be cleaved because hydrolysis would not occur.
The covalent bond that holds the dimer together would not be cleaved because dehydration synthesis would not occur.
The reverse of the reaction would occur and a covalent bond would spontaneously form between the two monomers.
In the reaction depicted below, maltose is broken down into two molecules of glucose. Which of the following best explains the process of this reaction?
The addition of a water molecule cleaves the covalent bond holding maltose together.
The reverse of this reaction would require the addition of water to build the maltose dimer from the glucose monomers
This breakdown process requires the release of water as a product of the reaction.
The ionic bond of maltose is broken down through the addition of water in this hydrolysis reaction.
What composes a semi-permeable membrane?
Proteins
Carbohydrates
Phospholipids
Fatty acids
What Organic molecule is a biologically functional molecule that consists of one or more polypeptides folded and coiled into a specific 3-D structure?
Lipid
Carbohydrate
Nucleic Acid
Protein
What are three major disaccharides?
Maltose, Lactose, & Sucrase
Maltase, Lactose, & Sucrose
Maltose, Lactose, & Sucrose
Maltose, Lactase, & Sucrose
A fat that is solid at room temperature. (ex. Animal fat)
Saturated Fat
Supersaturated Fat
Unsaturated Fat
I haven't answered a question since the first one
A fat that is liquid at room temperature because of the kinks in the molecule. (ex. Plant oils)
Supersaturated
Unsaturated
Saturated
Which of the following statements is/are true regarding the chemical reaction illustrated in the Figure?
It is a hydrolysis reaction.
It results in a peptide bond.
It joins two fatty acids together.
Which of the following is found in DNA, but not RNA?
