Question 1

The extracellular matrix attached to cells via glycoproteins may then bind to ________ in the plasma membrane.

Accepted Answer

A)  dynein 
B)  collagen 
C)  integrins 
D)  polysaccharides 
A)  dynein 
B)  collagen 
C)  integrins 
D)  polysaccharides

Question 2

Which of the following cell structures are associated with the breakdown of harmful substances?

Accepted Answer

A)  chloroplasts 
B)  mitochondria 
C)  peroxisomes 
D)  centrioles 
A)  chloroplasts 
B)  mitochondria 
C)  peroxisomes 
D)  centrioles

Question 3

Cell theory states that

Accepted Answer

A)  all living things are made of many cells. 
B)  cells can be created from molecules spontaneously. 
C)  all living things are composed of cells and that all cells come from other cells. 
D)  cells make up living and nonliving substances. 
A)  all living things are made of many cells. 
B)  cells can be created from molecules spontaneously. 
C)  all living things are composed of cells and that all cells come from other cells. 
D)  cells make up living and nonliving substances.

Question 4

Light microscopes

Accepted Answer

A)  typically provide more resolution than an electron microscope. 
B)  work by reflecting electrons off the surface of an object being studied. 
C)  use light and glass lenses to magnify an image. 
D)  are generally not used to view bacteria. 
A)  typically provide more resolution than an electron microscope. 
B)  work by reflecting electrons off the surface of an object being studied. 
C)  use light and glass lenses to magnify an image. 
D)  are generally not used to view bacteria.

Question 5

You are told that the cells on a microscope slide are plant, animal, or bacterial. You look at them through a microscope and see cell walls and membrane-bound organelles. You conclude correctly that the cells

Accepted Answer

A)  are plant cells. 
B)  are animal cells. 
C)  are bacterial cells. 
D)  could be either plant or bacterial cells. 
A)  are plant cells. 
B)  are animal cells. 
C)  are bacterial cells. 
D)  could be either plant or bacterial cells.

Question 6

The epidermis is made up of epithelial cells which are held tightly together side by side to prevent pathogens from entering the body and to prevent unnecessary water loss. What type of junction holds epithelial cells together to achieve this function?

Accepted Answer

A)  tight junction 
B)  communicating junction 
C)  gap junction 
D)  anchoring junction 
A)  tight junction 
B)  communicating junction 
C)  gap junction 
D)  anchoring junction

Question 7

Which location in the cell is unlikely to contain ribosomes or ribosomal subunits?

Accepted Answer

A)  nuclear envelope 
B)  plasma membrane 
C)  endoplasmic reticulum 
D)  cytoplasm 
A)  nuclear envelope 
B)  plasma membrane 
C)  endoplasmic reticulum 
D)  cytoplasm

Question 8

Which of the following structures is/are used by prokaryotes for attaching to surfaces?

Accepted Answer

A)  flagella 
B)  nucleoid 
C)  anchoring junctions 
D)  capsule 
A)  flagella 
B)  nucleoid 
C)  anchoring junctions 
D)  capsule

Question 9

A scientist wants to examine living cells lining the respiratory tract to determine how the cells use tiny hairs to move dirt and mucus away from the lungs. Which of the following instruments would be best, and why?

Accepted Answer

A)  a light microscope, because it allows observations of whole, live cells 
B)  a transmission electron microscope, because it has high resolution 
C)  a scanning electron microscope, because it can reveal structures on cell surfaces 
D)  a scanning electron microscope, because it can be used to observe whole cells without slicing them 
A)  a light microscope, because it allows observations of whole, live cells 
B)  a transmission electron microscope, because it has high resolution 
C)  a scanning electron microscope, because it can reveal structures on cell surfaces 
D)  a scanning electron microscope, because it can be used to observe whole cells without slicing them

Question 10

The nucleoid region of a prokaryotic cell

Accepted Answer

A)  contains the cell's DNA. 
B)  separates the RNA from the cytoplasm. 
C)  is surrounded by a nucleoid membrane. 
D)  contains the cell's nucleoli. 
A)  contains the cell's DNA. 
B)  separates the RNA from the cytoplasm. 
C)  is surrounded by a nucleoid membrane. 
D)  contains the cell's nucleoli.

Question 11

The stroma is the

Accepted Answer

A)  thick fluid enclosed by the inner chloroplast membrane. 
B)  watery fluid enclosed by the inner membrane of a mitochondrion. 
C)  space between the inner and outer membranes of a chloroplast. 
D)  space between the inner and outer membranes of a mitochondrion. 
A)  thick fluid enclosed by the inner chloroplast membrane. 
B)  watery fluid enclosed by the inner membrane of a mitochondrion. 
C)  space between the inner and outer membranes of a chloroplast. 
D)  space between the inner and outer membranes of a mitochondrion.

Question 12

The membranous compartmentalization of a cell

Accepted Answer

A)  divides the cell into two equal-sized halves. 
B)  allows different chemical conditions to be maintained in different parts of the cell. 
C)  requires the presence of a cell wall. 
D)  is common to both prokaryotes and eukaryotes. 
A)  divides the cell into two equal-sized halves. 
B)  allows different chemical conditions to be maintained in different parts of the cell. 
C)  requires the presence of a cell wall. 
D)  is common to both prokaryotes and eukaryotes.

Question 13

Which of the following statements regarding the Golgi apparatus is false?

Accepted Answer

A)  The Golgi apparatus works closely with the endoplasmic reticulum. 
B)  The Golgi apparatus serves as a molecular warehouse and finishing factory. 
C)  The Golgi apparatus decreases in size when a cell increases its protein production. 
D)  The Golgi apparatus modifies chemicals received from the endoplasmic reticulum. 
A)  The Golgi apparatus works closely with the endoplasmic reticulum. 
B)  The Golgi apparatus serves as a molecular warehouse and finishing factory. 
C)  The Golgi apparatus decreases in size when a cell increases its protein production. 
D)  The Golgi apparatus modifies chemicals received from the endoplasmic reticulum.

Exam 4: A Tour of the Cell

The extracellular matrix attached to cells via glycoproteins may then bind to ________ in the plasma membrane.

Which of the following cell structures are associated with the breakdown of harmful substances?

Cell theory states that

Light microscopes

You are told that the cells on a microscope slide are plant, animal, or bacterial. You look at them through a microscope and see cell walls and membrane-bound organelles. You conclude correctly that the cells

The epidermis is made up of epithelial cells which are held tightly together side by side to prevent pathogens from entering the body and to prevent unnecessary water loss. What type of junction holds epithelial cells together to achieve this function?

Which location in the cell is unlikely to contain ribosomes or ribosomal subunits?

Which of the following structures is/are used by prokaryotes for attaching to surfaces?

A scientist wants to examine living cells lining the respiratory tract to determine how the cells use tiny hairs to move dirt and mucus away from the lungs. Which of the following instruments would be best, and why?

The nucleoid region of a prokaryotic cell

The stroma is the

The membranous compartmentalization of a cell

Which of the following statements regarding the Golgi apparatus is false?

Biology: Exploring Life

The Chemical Basis of Life

The Molecules of Cells

The Working Cell

How Cells Harvest Chemical Energy

Photosynthesis: Using Light to Make Food

The Cellular Basis of Reproduction and Inheritance

Patterns of Inheritance

Molecular Biology of the Gene

How Genes Are Controlled

DNA Technology and Genomics

How Populations Evolve

The Origin of Species

Tracing Evolutionary History

Microbial Life: Prokaryotes and Protists

The Evolution of Plant and Fungal Diversity

The Evolution of Invertebrate Diversity

The Evolution of Vertebrate Diversity

Unifying Concepts of Animal Structure and Function

Nutrition and Digestion

Gas Exchange

Circulation

The Immune System

Control of Body Temperature and Water Balance

Hormones and the Endocrine System

Reproduction and Embryonic Development

Nervous Systems

The Senses

How Animals Move

Plant Structure, Growth, and Reproduction

Plant Nutrition and Transport

Control Systems in Plants

The Biosphere: an Introduction to Earths Diverse Environments

Behavioral Adaptations to the Environment

Population Ecology

Communities and Ecosystems

Conservation Biology

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