Transcript Tutorial for module BY1101 Cell biology revision: MCQ Joe Colgan

BY1101 Introduction to Molecular and Cellular Biology
Tutorial for module BY1101
Cell biology revision: MCQ
Joe Colgan ([email protected])
BY1101 Introduction to Molecular and Cellular Biology
BY1101: Cell biology MCQ
• Multiple choice questions
• 30 questions (Slide will change every minute)
• Self assessment
BY1101 Introduction to Molecular and Cellular Biology
Q. 1 What is the process by which monomers are linked together to form
polymers?
A.
B.
C.
D.
E.
Hydrolysis
Monomerization
Protein formation
Dehydration reactions
Coiling
BY1101 Introduction to Molecular and Cellular Biology
Q. 2 In a hydrolysis reaction, ______, and in this process water is _______.
A.
B.
C.
D.
E.
Monomers are assembled to produce a polymer........produced
A monomer is broken up into its constituent polymers.......produced
Monomers are assembled to produce a polymer........consumed
A polymer is broken up into its constituent monomers.....produced
A polymer is broken up into its constituent monomers.....consumed
BY1101 Introduction to Molecular and Cellular Biology
Q. 3 The type of bond that forms to join monomers (such as sugars and amino
acids) into polymers (such as starch and proteins) is a(n) _______ bond.
A.
B.
C.
D.
E.
Van der Waals
Hydrogen
Covalent
Ionic
Peptide
BY1101 Introduction to Molecular and Cellular Biology
Q. 4 Which of the following is not a true polymer?
A.
B.
C.
D.
E.
Nucleic acids
Proteins
Lipids
Carbohydrates
None of the above
BY1101 Introduction to Molecular and Cellular Biology
Q. 5 Protein molecules are polymers (chains) of _______.
A.
B.
C.
D.
E.
DNA molecules
Amino acid molecules
Fatty acid molecules
Purines and pyrimidines
Sucrose molecules
BY1101 Introduction to Molecular and Cellular Biology
Q. 6 The peptide bond is _______.
A.
B.
C.
D.
E.
A covalent bond joining simple sugars together to form a polypeptide
A covalent bond joining nucleotides together to form a nucleic acid
A hydrogen bond joining nucleotides together to form a nucleic acid
A hydrogen bond joining amino acids together to form a polypeptide
A covalent bond joining amino acids together to form a polypeptide
BY1101 Introduction to Molecular and Cellular Biology
Q. 7 The alpha helix and beta pleated sheets represent which level of protein
structure:
A.
B.
C.
D.
E.
Primary structure
Tertiary structure
Secondary structure
Pentiary structure
Quaternary structure
BY1101 Introduction to Molecular and Cellular Biology
Q. 8 The “primary structure” of a protein refers to ________.
A. The alpha helix or beta pleated sheets
B. The weak aggregation of two or more polypeptide chains into one functional
macromolecule
C. Coiling due to hydrogen bonding between amino acids
D. Interactions among the side chains or R groups of the amino acids
E. The sequence of amino acids
BY1101 Introduction to Molecular and Cellular Biology
Q. 9 The overall three dimensional shape of a single polypeptide is called
________.
A.
B.
C.
D.
E.
Tertiary structure
Primary structure
Double helix
Quaternary structure
Secondary structure
BY1101 Introduction to Molecular and Cellular Biology
Q. 10 A nucleotide is made up of which of the following chemical components?
A.
B.
C.
D.
E.
A nitrogenous base, a fatty acid, and an amino acid
A nitrogenous base, an amino acid, and a phosphate group
A series of nitrogenous bases, a nucleic acid backbone, and a hexose sugar
A nitrogenous base, an amino acid, and a pentose sugar
A nitrogenous base, a phosphate group, and a pentose sugar
BY1101 Introduction to Molecular and Cellular Biology
Q. 11 Which of the following describes a difference between DNA and RNA?
A. RNA molecules consist of a single polynucleotide chain, whereas DNA molecules
consist of two polynucleotide chains organised into a double helix
B. One of their nitrogenous bases is different
C. They contain different sugars
D. The first and second listed responses are correct differences
E. The first three listed responses all describe differences
BY1101 Introduction to Molecular and Cellular Biology
Q. 12 On the basis of the principle of complementary base pairing, you would
expect the percentage of ______ to be equal to the percentage of ________.
A.
B.
C.
D.
E.
Adenine...........guanine
Adenine...........cytosine
Thymine..........guanine
Adenine...........thymine
Thymine..........cytosine
BY1101 Introduction to Molecular and Cellular Biology
Q. 13 Which of the following is the simplest collection of matter that can live?
A.
B.
C.
D.
E.
Tissue
Cell
Organ
Molecules
None of the listed responses are correct
BY1101 Introduction to Molecular and Cellular Biology
Q. 14 Bacterial cells are prokaryotic. Unlike a typical eukaryotic cell they ______.
A.
B.
C.
D.
E.
Have no membrane-bounded organelles in their cytoplasm
Lack a plasma membrane
Have a smaller nucleus
Have no ribosomes
Lack chromosomes
BY1101 Introduction to Molecular and Cellular Biology
Q. 15 Which of the following structures is found in eukaryotic but not prokaryotic
cells?
A.
B.
C.
D.
E.
Mitochondria
Ribosomes
DNA
Cytosol
Plasma membrane
BY1101 Introduction to Molecular and Cellular Biology
Q. 16 What compartment of the cell is referred to as the “brain of the cell”?
A.
B.
C.
D.
E.
Ribosomes
Nucleus
Mitochondria
Rough endoplasmic reticulum
Golgi apparatus
BY1101 Introduction to Molecular and Cellular Biology
Q. 17 What is the functional connection between the nucleolus, nuclear pores, and
the nuclear envelope?
A. The nucleolus contains messenger RNA (mRNA), which crosses the nuclear
envelope through the nuclear pores
B. Subunits of ribosomes are assembled in the nucleolus and pass through the
nuclear membrane via the nuclear pores
C. The nuclear pores are connections between the nuclear membrane and the
endoplasmic reticulum that permit ribosomes to assemble on the surface of the
ER
D. Endoplasmic reticulum membrane is produced in the nucleolus and leaves the
nucleus through the nuclear pores
E. None of the listed responses are correct
BY1101 Introduction to Molecular and Cellular Biology
Q. 18 What component of the cell is involved in assembly of the ribosomal
subunits?
A.
B.
C.
D.
E.
Ribosome
Chromatin
Nuclear membrane
Nucleolus
Nuclear pores
BY1101 Introduction to Molecular and Cellular Biology
Q. 19 Which of the following categories best describes the function of the rough
endoplasmic reticulum?
A.
B.
C.
D.
E.
Manufacturing
Energy processing
Structural support of cells
Information storage
Breakdown of complex foods
BY1101 Introduction to Molecular and Cellular Biology
Q. 20 The sorting and packaging centre of the cell refers to what cellular
component?
A.
B.
C.
D.
E.
Golgi apparatus
Lysosome
Nucleus
Rough endoplasmic reticulum
Mitochondria
BY1101 Introduction to Molecular and Cellular Biology
Q. 21 A substance moving from outside the cell into the cytoplasm must pass
through _________.
A.
B.
C.
D.
E.
The endomembrane system
A microtubule
The nucleus
A ribosome
The plasma membrane
BY1101 Introduction to Molecular and Cellular Biology
Q. 22 Which of the following is/are possible site(s) of protein synthesis in a typical
eukaryotic cell?
A.
B.
C.
D.
E.
The cytoplasm
The rough endoplasmic reticulum
In mitochondria
The first two answers are correct
The first three answers are correct
BY1101 Introduction to Molecular and Cellular Biology
Q. 23 Which of the following statements about chloroplasts and mitochondria is
true?
A.
B.
C.
D.
E.
Chloroplasts and mitochondria synthesize some of their own proteins
Chloroplasts and mitochondria are components of the endomembrane system
Mitochondria but not chloroplasts contain a small amount of DNA
Chloroplasts and mitochondria have three sets of membranes
Chloroplasts but not mitochondria are completely independent of the cell of
which they are part
BY1101 Introduction to Molecular and Cellular Biology
Q. 24 Which of the following structure is found in animal cells but NOT plant cells?
A.
B.
C.
D.
E.
Plasma membrane
Golgi apparatus
Mitochondria
Centrioles
Rough endoplasmic reticulum
BY1101 Introduction to Molecular and Cellular Biology
Q. 25 Detoxification is a characteristic function of what type of organelle?
A.
B.
C.
D.
E.
Mitochondria
Golgi apparatus
Nucleus
Peroxisome
Rough endoplasmic reticulum
BY1101 Introduction to Molecular and Cellular Biology
Q. 26 Which of the following cell structures exhibits selective permeability
between a cell and its external environment?
A.
B.
C.
D.
E.
The plasma membrane
Mitochondria
Lysosomes
Endoplasmic reticulum
Chloroplasts
BY1101 Introduction to Molecular and Cellular Biology
Q. 27 Which of the following statements about diffusion is true?
A. It is a passive process
B. It occurs when molecules move from a region of lower concentration to a region
of higher concentration
C. It always requires integral proteins of the cell membrane
D. It is very rapid over long distances
E. It requires expenditure of energy by the cell
BY1101 Introduction to Molecular and Cellular Biology
Q. 28 Which of these statements describes some aspects of facilitated diffusion?
A. There is only one kind of protein pore for facilitated diffusion
B. Facilitated diffusion is another name for osmosis.
C. Facilitated diffusion of solutes may occur through channel or transport proteins
in the membrane
D. Facilitated diffusion requires energy to drive a concentration gradient
E. Facilitated diffusion of solutes occurs through phospholipid pores in the
membrane
BY1101 Introduction to Molecular and Cellular Biology
Q. 29 Which of the following is a correct difference between active transport and
facilitated diffusion?
A. Active transport can move solutes in either direction across a membrane, but
facilitated diffusion can only move in one direction
B. Active transport requires energy from ATP, and facilitated diffusion does not
C. Active transport involves transport proteins, and facilitated diffusion does not
D. Facilitated diffusion can move solutes against a concentration gradient, and
active transport cannot
E. Facilitated diffusion involves transport proteins, and active transport does not
BY1101 Introduction to Molecular and Cellular Biology
Q. 30 Which of the following enables a cell to pick up and concentrate a specific
kind of molecule?
A.
B.
C.
D.
E.
Channel proteins
Receptor-mediated endocytosis
Passive transport
Osmosis
Facilitated diffusion
BY1101 Introduction to Molecular and Cellular Biology
Time is up
• Pass your answers to your neighbour and we
will correct
BY1101 Introduction to Molecular and Cellular Biology
Q. 1 What is the process by which monomers are linked together to form
polymers?
A.
B.
C.
D.
E.
Hydrolysis
Monomerization
Protein formation
Dehydration reactions
Coiling
Q. 2 In a hydrolysis reaction, ______, and in this process water is _______.
A.
B.
C.
D.
E.
Monomers are assembled to produce a polymer........produced
A monomer is broken up into its constituent polymers.......produced
Monomers are assembled to produce a polymer........consumed
A polymer is broken up into its constituent monomers.....produced
A polymer is broken up into its constituent monomers.....consumed
BY1101 Introduction to Molecular and Cellular Biology
Q. 3 The type of bond that forms to join monomers (such as sugars and amino
acids) into polymers (such as starch and proteins) is a(n) _______ bond.
A.
B.
C.
D.
E.
Van der Waals
Hydrogen
Covalent
Ionic
Peptide
Q. 4 Which of the following is not a true polymer?
A.
B.
C.
D.
E.
Nucleic acids
Proteins
Lipids
Carbohydrates
None of the above
BY1101 Introduction to Molecular and Cellular Biology
Q. 5 Protein molecules are polymers (chains) of _______.
A.
B.
C.
D.
E.
DNA molecules
Amino acid molecules
Fatty acid molecules
Purines and pyrimidines
Sucrose molecules
Q. 6 The peptide bond is _______.
A.
B.
C.
D.
E.
A covalent bond joining simple sugars together to form a polypeptide
A covalent bond joining nucleotides together to form a nucleic acid
A hydrogen bond joining nucleotides together to form a nucleic acid
A hydrogen bond joining amino acids together to form a polypeptide
A covalent bond joining amino acids together to form a polypeptide
BY1101 Introduction to Molecular and Cellular Biology
Q. 7 The alpha helix and beta pleated sheets represent which level of protein
structure:
A.
B.
C.
D.
E.
Primary structure
Tertiary structure
Secondary structure
Pentiary structure
Quaternary structure
Q. 8 The “primary structure” of a protein refers to ________.
A. The alpha helix or beta pleated sheets
B. The weak aggregation of two or more polypeptide chains into one functional
macromolecule
C. Coiling due to hydrogen bonding between amino acids
D. Interactions among the side chains or R groups of the amino acids
E. The sequence of amino acids
BY1101 Introduction to Molecular and Cellular Biology
Q. 9 The overall three dimensional shape of a single polypeptide is called
________.
A.
B.
C.
D.
E.
Tertiary structure
Primary structure
Double helix
Quaternary structure
Secondary structure
Q. 10 A nucleotide is made up of which of the following chemical components?
A.
B.
C.
D.
E.
A nitrogenous base, a fatty acid, and an amino acid
A nitrogenous base, an amino acid, and a phosphate group
A series of nitrogenous bases, a nucleic acid backbone, and a hexose sugar
A nitrogenous base, an amino acid, and a pentose sugar
A nitrogenous base, a phosphate group, and a pentose sugar
BY1101 Introduction to Molecular and Cellular Biology
Q. 11 Which of the following describes a difference between DNA and RNA?
A. RNA molecules consist of a single polynucleotide chain, whereas DNA molecules
consist of two polynucleotide chains organised into a double helix
B. One of their nitrogenous bases is different
C. They contain different sugars
D. The first and second listed responses are correct differences
E. The first three listed responses all describe differences
Q. 12 On the basis of the principle of complementary base pairing, you would
expect the percentage of ______ to be equal to the percentage of ________.
A.
B.
C.
D.
E.
Adenine...........guanine
Adenine...........cytosine
Thymine..........guanine
Adenine...........thymine
Thymine..........cytosine
BY1101 Introduction to Molecular and Cellular Biology
Q. 13 Which of the following is the simplest collection of matter that can live?
A.
B.
C.
D.
E.
Tissue
Cell
Organ
Molecules
None of the listed responses are correct
Q. 14 Bacterial cells are prokaryotic. Unlike a typical eukaryotic cell they ______.
A.
B.
C.
D.
E.
Have no membrane-bounded organelles in their cytoplasm
Lack a plasma membrane
Have a smaller nucleus
Have no ribosomes
Lack chromosomes
BY1101 Introduction to Molecular and Cellular Biology
Q. 15 Which of the following structures is found in eukaryotic but not prokaryotic
cells?
A.
B.
C.
D.
E.
Mitochondria
Ribosomes
DNA
Cytosol
Plasma membrane
Q. 16 What compartment of the cell is referred to as the “brain of the cell”?
A.
B.
C.
D.
E.
Ribosomes
Nucleus
Mitochondria
Rough endoplasmic reticulum
Golgi apparatus
BY1101 Introduction to Molecular and Cellular Biology
Q. 17 What is the functional connection between the nucleolus, nuclear pores, and
the nuclear envelope?
A. The nucleolus contains messenger RNA (mRNA), which crosses the nuclear
envelope through the nuclear pores
B. Subunits of ribosomes are assembled in the nucleolus and pass through the
nuclear membrane via the nuclear pores
C. The nuclear pores are connections between the nuclear membrane and the
endoplasmic reticulum that permit ribosomes to assemble on the surface of the
ER
D. Endoplasmic reticulum membrane is produced in the nucleolus and leaves the
nucleus through the nuclear pores
E. None of the listed responses are correct
BY1101 Introduction to Molecular and Cellular Biology
Q. 18 What component of the cell is involved in assembly of the ribosomal
subunits?
A.
B.
C.
D.
E.
Ribosome
Chromatin
Nuclear membrane
Nucleolus
Nuclear pores
Q. 19 Which of the following categories best describes the function of the rough
endoplasmic reticulum?
A.
B.
C.
D.
E.
Manufacturing
Energy processing
Structural support of cells
Information storage
Breakdown of complex foods
BY1101 Introduction to Molecular and Cellular Biology
Q. 20 The sorting and packaging centre of the cell refers to what cellular
component?
A.
B.
C.
D.
E.
Golgi apparatus
Lysosome
Nucleus
Rough endoplasmic reticulum
Mitochondria
Q. 21 A substance moving from outside the cell into the cytoplasm must pass
through _________.
A.
B.
C.
D.
E.
The endomembrane system
A microtubule
The nucleus
A ribosome
The plasma membrane
BY1101 Introduction to Molecular and Cellular Biology
Q. 22 Which of the following is/are possible site(s) of protein synthesis in a typical
eukaryotic cell?
A.
B.
C.
D.
E.
The cytoplasm
The rough endoplasmic reticulum
In mitochondria
The first two answers are correct
The first three answers are correct
Q. 23 Which of the following statements about chloroplasts and mitochondria is
true?
A.
B.
C.
D.
E.
Chloroplasts and mitochondria synthesize some of their own proteins
Chloroplasts and mitochondria are components of the endomembrane system
Mitochondria but not chloroplasts contain a small amount of DNA
Chloroplasts and mitochondria have three sets of membranes
Chloroplasts but not mitochondria are completely independent of the cell of
which they are part
BY1101 Introduction to Molecular and Cellular Biology
Q. 24 Which of the following structure is found in animal cells but NOT plant cells?
A.
B.
C.
D.
E.
Plasma membrane
Golgi apparatus
Mitochondria
Centrioles
Rough endoplasmic reticulum
Q. 25 Detoxification is a characteristic function of what type of organelle?
A.
B.
C.
D.
E.
Mitochondria
Golgi apparatus
Nucleus
Peroxisome
Rough endoplasmic reticulum
BY1101 Introduction to Molecular and Cellular Biology
Q. 26 Which of the following cell structures exhibits selective permeability
between a cell and its external environment?
A.
B.
C.
D.
E.
The plasma membrane
Mitochondria
Lysosomes
Endoplasmic reticulum
Chloroplasts
Q. 27 Which of the following statements about diffusion is true?
A. It is a passive process
B. It occurs when molecules move from a region of lower concentration to a region
of higher concentration
C. It always requires integral proteins of the cell membrane
D. It is very rapid over long distances
E. It requires expenditure of energy by the cell
BY1101 Introduction to Molecular and Cellular Biology
Q. 28 Which of these statements describes some aspects of facilitated diffusion?
A. There is only one kind of protein pore for facilitated diffusion
B. Facilitated diffusion is another name for osmosis.
C. Facilitated diffusion of solutes may occur through channel or transport proteins
in the membrane
D. Facilitated diffusion requires energy to drive a concentration gradient
E. Facilitated diffusion of solutes occurs through phospholipid pores in the
membrane
Q. 29 Which of the following is a correct difference between active transport and
facilitated diffusion?
A. Active transport can move solutes in either direction across a membrane, but
facilitated diffusion can only move in one direction
B. Active transport requires energy from ATP, and facilitated diffusion does not
C. Active transport involves transport proteins, and facilitated diffusion does not
D. Facilitated diffusion can move solutes against a concentration gradient, and
active transport cannot
E. Facilitated diffusion involves transport proteins, and active transport does not
BY1101 Introduction to Molecular and Cellular Biology
Q. 30 Which of the following enables a cell to pick up and concentrate a specific
kind of molecule?
A.
B.
C.
D.
E.
Channel proteins
Receptor-mediated endocytosis
Passive transport
Osmosis
Facilitated diffusion
BY1101 Introduction to Molecular and Cellular Biology
How did you do?
For extra reading:
Campbell
Proteins and nucleic acids: Chapter 5 (sections 5.4 and 5.5)
Tour of the cell: Chapter 6
Membrane structure and function: Chapter 7
BY1101 Introduction to Molecular and Cellular Biology
Next week: Chromatography
Read over practicals 2 and 3
Bring your practical book and any questions that you may have