Question 1

To observe the three-dimensional structure of a cell the best type of microscopy would be

Accepted Answer

A) fluorescence microscopy. 
B) standard light microscopy. 
C) scanning electron microscopy. 
D) differential-interference light microscopy. 
E) transmission electron microscopy. 
A) fluorescence microscopy. 
B) standard light microscopy. 
C) scanning electron microscopy. 
D) differential-interference light microscopy. 
E) transmission electron microscopy.

Question 2

These anchorage junctions interact with intermediate filaments and anchor cells to the extracellular matrix.

Accepted Answer

A) focal adhesions 
B) adherens junctions 
C) fibronectin 
D) hemidesmosomes 
E) desmosomes 
A) focal adhesions 
B) adherens junctions 
C) fibronectin 
D) hemidesmosomes 
E) desmosomes

Question 3

Wrinkling observed with aging is do to increased production of the extracellular matrix molecule,collagen.

Accepted Answer

A) True 
 B)False

Question 4

During a period of low water availability,the prokaryotic structure that would protect a cell from desiccation (drying out)is the

Accepted Answer

A) pili. 
B) plasma membrane. 
C) nucleus. 
D) cell wall. 
A) pili. 
B) plasma membrane. 
C) nucleus. 
D) cell wall.

Question 5

Transmission and scanning electron microscopy differ because

Accepted Answer

A) transmission electron microscopy has high resolution,but scanning electron microscopy does not. 
B) transmission electron microscopy shows contrast,but scanning electron microscopy does not. 
C) transmission electron microscopy has much higher magnification than scanning electron microscopy. 
D) transmission electron microscopy shows two-dimensional ultrastructure,while the scanning electron microscopy shows three-dimensional structure. 
E) transmission electron microscopy uses light as an illumination source,while scanning electron microscopy uses electron beams as an illumination sourcE. 
A) transmission electron microscopy has high resolution,but scanning electron microscopy does not. 
B) transmission electron microscopy shows contrast,but scanning electron microscopy does not. 
C) transmission electron microscopy has much higher magnification than scanning electron microscopy. 
D) transmission electron microscopy shows two-dimensional ultrastructure,while the scanning electron microscopy shows three-dimensional structure. 
E) transmission electron microscopy uses light as an illumination source,while scanning electron microscopy uses electron beams as an illumination sourcE.

Question 6

In order to visualize the fine structure of viruses and cytoskeletal filaments at 10-25 nanometers in diameter the type of microscopy that would be ideal is

Accepted Answer

A) standard light microscopy. 
B) phase-contrast light microscopy. 
C) transmission electron microscopy. 
D) darkfield light microscopy. 
E) differential-interference microscopy. 
A) standard light microscopy. 
B) phase-contrast light microscopy. 
C) transmission electron microscopy. 
D) darkfield light microscopy. 
E) differential-interference microscopy.

Question 7

Blood vessels that can expand and contract contain a lot of collagen as a structural extracellular matrix protein.

Accepted Answer

A) True 
 B)False

Question 8

FtsZ,MreB,and CreS proteins regulate the shape and structure of bacterial (prokaryotes)cells.These proteins are homologous to the _______ in eukaryotes.

Accepted Answer

A) extracellular matrix 
B) DNA processing enzymes 
C) cytoskeleton 
D) organelles 
E) cell wall 
A) extracellular matrix 
B) DNA processing enzymes 
C) cytoskeleton 
D) organelles 
E) cell wall

Question 9

Proteoglycans are _____

Accepted Answer

A) both composed of polysaccharides called glycosaminoglycans and provide resistance to compression. 
B) composed of polysaccharides called glycosaminoglycans. 
C) both composed of collagen and provide resistance to compression. 
D) resistant to compression. 
E) composed of collagen. 
A) both composed of polysaccharides called glycosaminoglycans and provide resistance to compression. 
B) composed of polysaccharides called glycosaminoglycans. 
C) both composed of collagen and provide resistance to compression. 
D) resistant to compression. 
E) composed of collagen.

Question 10

The nucleus is to eukaryotes as the ________ is to prokaryotes.

Accepted Answer

A) plasmid 
B) RNA strand 
C) ribosome 
D) nucleoid 
E) nucleolus 
A) plasmid 
B) RNA strand 
C) ribosome 
D) nucleoid 
E) nucleolus

Question 11

The Endosymbiosis theory best describes the origins of peroxisomes in eukaryotes.

Accepted Answer

A) True 
 B)False

Question 12

Emphysema is caused by an increase in elastase that breaks down elastin.Predict the symptoms you would see in a patient with emphysema?

Accepted Answer

A) Decreased ability of the lungs to expand and contract. 
B) Thickening of the cell wall. 
C) Thinning of the cell wall. 
D) Decreased flexibility in joints. 
E) Thickening of the extra cellular matrix. 
A) Decreased ability of the lungs to expand and contract. 
B) Thickening of the cell wall. 
C) Thinning of the cell wall. 
D) Decreased flexibility in joints. 
E) Thickening of the extra cellular matrix.

Question 13

If the tight junctions in the intestine were disrupted

Accepted Answer

A) intestinal cells could not attach to integral membrane proteins. 
B) small molecules would not be able to move into cells lining the intestine. 
C) small molecules would not be exchanged between neighboring intestinal cells. 
D) intestinal cells could not attach to the extracellular matrix. 
E) bacteria could move from the intestines to the bloodstream causing an infection. 
A) intestinal cells could not attach to integral membrane proteins. 
B) small molecules would not be able to move into cells lining the intestine. 
C) small molecules would not be exchanged between neighboring intestinal cells. 
D) intestinal cells could not attach to the extracellular matrix. 
E) bacteria could move from the intestines to the bloodstream causing an infection.

Question 14

In order to gain the highest resolution when looking at a cell the best type of microscopy is

Accepted Answer

A) phase-contrast light microscopy. 
B) scanning electron microscopy. 
C) differential-interference light microscopy. 
D) confocal microscopy. 
E) fluorescence microscopy. 
A) phase-contrast light microscopy. 
B) scanning electron microscopy. 
C) differential-interference light microscopy. 
D) confocal microscopy. 
E) fluorescence microscopy.

Question 15

A fabric company wants to create a new material based on cell research for the army that is able to bear high levels of tension efficiently.What cellular structure should be the target?

Accepted Answer

A) Microtubules. 
B) Intermediate filaments. 
C) Microfilaments. 
D) Centrioles. 
E) Pili. 
A) Microtubules. 
B) Intermediate filaments. 
C) Microfilaments. 
D) Centrioles. 
E) Pili.

Question 16

The specialized structure that stores pigments,water,inorganic ions and maintains turgor pressure is the

Accepted Answer

A) Golgi apparatus. 
B) vacuole. 
C) peroxisomes. 
D) vesicles. 
E) lysosomes. 
A) Golgi apparatus. 
B) vacuole. 
C) peroxisomes. 
D) vesicles. 
E) lysosomes.

Question 17

If a drug blocked the activity of an integrin that cell would not be able to respond to changes in the ECM.

Accepted Answer

A) True 
 B)False

Question 18

Determine the order of the processes occurring as a protein travels through the endomembrane system.

Accepted Answer

A) Movement through the cis,medial and rans regions. 
B) Attachment of protein to cargo receptors. 
C) Translation of protein into the Rough ER. 
D) Release of the protein out of the cell. 
E) Transportation to the Golgi.
F)Pinching of vesicle into the cytoplasm. 
A) Movement through the cis,medial and rans regions. 
B) Attachment of protein to cargo receptors. 
C) Translation of protein into the Rough ER. 
D) Release of the protein out of the cell. 
E) Transportation to the Golgi.
F)Pinching of vesicle into the cytoplasm.

Question 19

The gonads produce steroids.The specific steroid-producing organelle in gonad cells is

Accepted Answer

A) ribosomes. 
B) lysosomes. 
C) smooth endoplasmic reticulum. 
D) mitochondria. 
E) contractile vacuolE. 
A) ribosomes. 
B) lysosomes. 
C) smooth endoplasmic reticulum. 
D) mitochondria. 
E) contractile vacuolE.

Question 20

Cellulose in the cell wall is a primary energy store for plants.

Accepted Answer

A) True 
 B)False

Exam 4: General Features of Cells

To observe the three-dimensional structure of a cell the best type of microscopy would be

These anchorage junctions interact with intermediate filaments and anchor cells to the extracellular matrix.

Wrinkling observed with aging is do to increased production of the extracellular matrix molecule,collagen.

During a period of low water availability,the prokaryotic structure that would protect a cell from desiccation (drying out)is the

Transmission and scanning electron microscopy differ because

In order to visualize the fine structure of viruses and cytoskeletal filaments at 10-25 nanometers in diameter the type of microscopy that would be ideal is

Blood vessels that can expand and contract contain a lot of collagen as a structural extracellular matrix protein.

FtsZ,MreB,and CreS proteins regulate the shape and structure of bacterial (prokaryotes)cells.These proteins are homologous to the _______ in eukaryotes.

Proteoglycans are _____

The nucleus is to eukaryotes as the ________ is to prokaryotes.

The Endosymbiosis theory best describes the origins of peroxisomes in eukaryotes.

Emphysema is caused by an increase in elastase that breaks down elastin.Predict the symptoms you would see in a patient with emphysema?

If the tight junctions in the intestine were disrupted

In order to gain the highest resolution when looking at a cell the best type of microscopy is

A fabric company wants to create a new material based on cell research for the army that is able to bear high levels of tension efficiently.What cellular structure should be the target?

The specialized structure that stores pigments,water,inorganic ions and maintains turgor pressure is the

If a drug blocked the activity of an integrin that cell would not be able to respond to changes in the ECM.

Determine the order of the processes occurring as a protein travels through the endomembrane system.

The gonads produce steroids.The specific steroid-producing organelle in gonad cells is

Cellulose in the cell wall is a primary energy store for plants.

An Introduction to Biology

The Chemical Basis of Life I: Atoms, Molecules, and Water

The Chemical Basis of Life II: Organic Molecules

Membrane Structure, Transport, and Cell Junctions

Energy, Enzymes, and Cellular Respiration

Photosynthesis

Cell Communication

Nucleic Acid Structure, DNA Replication, and Chromosome Structure

Gene Expression at the Molecular Level

Gene Regulation

Mutation, DNA Repair, and Cancer

The Eukaryotic Cell Cycle, Mitosis, and Meiosis

Patterns of Inheritance

Genetics of Viruses and Bacteria

Genetic Technology

Genomes, Repetitive Sequences, and Bioinformatics

Origin and History of Life

An Introduction to Evolution and Population Genetics

Origin of Species and Macroevolution

Taxonomy and Systematics

Microorganisms: The Archaea, Bacteria, and Protists

Plants

Fungi

Animal Diversity: Invertebrates

Animal Diversity: Vertebrates

An Introduction to Flowering Plant Form and Function

Flowering Plants: Plant Behavior

Flowering Plants: Nutrition and Transport

Flowering Plants: Reproduction

Animal Bodies and Homeostasis

Neuroscience I: Structure, Function, and Evolution of Nervous Systems

Neuroscience II: Sensory Systems

Muscular-Skeletal Systems

Digestive Systems and Nutrition

Circulatory Systems

Respiratory Systems

Excretory Systems and the Homeostasis of Internal Fluids

Endocrine Systems

Animal Reproduction and Development

Immune Systems

Animal Behavior

Ecology and the Physical Environment

Population Ecology

Community Ecology

Ecosystem Ecology

Biodiversity and Conservation Biology

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