Question 1

Evidence that all living cells have a common origin is best illustrated by:

Accepted Answer

A)  the basic similarities in cell structure and chemistry 
B)  the fact that all new cells come from previously existing cells 
C)  the cell theory which states that the cell is the basic unit of life 
D)  the fact that cells are the building blocks of the most complex plants 
E)  the idea that cells are the smallest units that can carry out all life activities 
A)  the basic similarities in cell structure and chemistry 
B)  the fact that all new cells come from previously existing cells 
C)  the cell theory which states that the cell is the basic unit of life 
D)  the fact that cells are the building blocks of the most complex plants 
E)  the idea that cells are the smallest units that can carry out all life activities A

Question 2

Which of the following organelles plays an important role in apoptosis, or programmed cell death?

Accepted Answer

A)  ribosomes 
B)  mitochondria 
C)  chloroplasts 
D)  vacuoles 
E)  peroxisomes 
A)  ribosomes 
B)  mitochondria 
C)  chloroplasts 
D)  vacuoles 
E)  peroxisomes B

Question 3

Microfilaments are linked with one another and with other proteins by linker proteins.

Accepted Answer

A) True 
 B)False  True

Question 4

What is the microtubule arrangement of a flagellum or cilium?

Accepted Answer

A)  9 x 1 array 
B)  9 + 1 array 
C)  9 x 3 structure 
D)  9 + 2 arrangement 
E)  9 + 3 arrangement 
A)  9 x 1 array 
B)  9 + 1 array 
C)  9 x 3 structure 
D)  9 + 2 arrangement 
E)  9 + 3 arrangement

Question 5

What is the primary function of mitochondria?

Accepted Answer

A)  lipid synthesis 
B)  material storage 
C)  protein synthesis 
D)  transformation of energy 
E)  capturing light for photosynthesis 
A)  lipid synthesis 
B)  material storage 
C)  protein synthesis 
D)  transformation of energy 
E)  capturing light for photosynthesis

Question 6

The cis face of the Golgi complex is most directly involved in which process?

Accepted Answer

A)  Synthesizing proteins 
B)  Accepting vesicles from the ER 
C)  Packaging molecules in vesicles 
D)  Transporting molecules out of the Golgi 
E)  Catalyzing the efficient folding of proteins 
A)  Synthesizing proteins 
B)  Accepting vesicles from the ER 
C)  Packaging molecules in vesicles 
D)  Transporting molecules out of the Golgi 
E)  Catalyzing the efficient folding of proteins

Question 7

Proteins that are synthesized by ribosomes may be further modified within which organelle?

Accepted Answer

A)  Nucleus. 
B)  Lysosomes. 
C)  Mitochondria. 
D)  Golgi complex. 
E)  Peroxisomes. 
A)  Nucleus. 
B)  Lysosomes. 
C)  Mitochondria. 
D)  Golgi complex. 
E)  Peroxisomes.

Question 8

DNA transcribes its information into what type of molecule?

Accepted Answer

A)  RNA 
B)  mRNA 
C)  myosin 
D)  polypeptide 
E)  chromosomes 
A)  RNA 
B)  mRNA 
C)  myosin 
D)  polypeptide 
E)  chromosomes

Question 9

Mitochondria play an important role in cell necrosis.

Accepted Answer

A) True 
 B)False

Question 10

What is a characteristic found in both prokaryotic and eukaryotic cells?

Accepted Answer

A)  nucleus 
B)  nucleoplasm 
C)  chloroplast 
D)  mitochondria 
E)  plasma membrane 
A)  nucleus 
B)  nucleoplasm 
C)  chloroplast 
D)  mitochondria 
E)  plasma membrane

Question 11

Briefly compare the functions of chloroplasts and mitochondria. Identify specific structures in your comparison.

Accepted Answer

Mitochondria and chloroplasts are both e

Question 12

The force necessary to cause microtubules of cilia and flagella to slide alongside one another is provided through the action of ____ proteins, which derive the energy to perform their work directly from ____ molecules.

Accepted Answer

A)  kinesin; ADP 
B)  kinesin; glucose 
C)  tubulin; ATP 
D)  dynein; ATP 
E)  dynein; ADP 
A)  kinesin; ADP 
B)  kinesin; glucose 
C)  tubulin; ATP 
D)  dynein; ATP 
E)  dynein; ADP

Question 13

What is found between the primary walls of adjacent cells which cause them to tightly adhere to one another?

Accepted Answer

A)  collagen 
B)  cytosol 
C)  middle lamella 
D)  secondary cell wall 
E)  intermediate filaments 
A)  collagen 
B)  cytosol 
C)  middle lamella 
D)  secondary cell wall 
E)  intermediate filaments

Question 14

Identify two structural components of the cytoskeleton, and briefly describe their function(s).

Accepted Answer

Microtubules of the cytoskelet

Question 15

A basal body anchors what part of a cell?

Accepted Answer

A)  ribosome 
B)  thylakoid 
C)  centriole 
D)  flagellum 
E)  lysosome 
A)  ribosome 
B)  thylakoid 
C)  centriole 
D)  flagellum 
E)  lysosome

Question 16

Kinesin transports organelles toward the minus end of a microtubule.

Accepted Answer

A) True 
 B)False

Question 17

Briefly compare prokaryotic and eukaryotic cells. Identify three ways that differences between eukaryotes and prokaryotes impact cell function.

Accepted Answer

Both prokaryote and eukaryote have plasm

Question 18

Match between columns
                        Premises: rodlike structures consisting of actin

Accepted Answer

The Answer of lysosome and plastids and rough endoplasmic reticulum is...

Question 19

The micrometer (μm) is the most convenient unit for measuring cells.

Accepted Answer

A) True 
 B)False

Question 20

A bacterial pathogen has just entered a human body. Describe the sequence of events that will lead to the production of enzymes and the hydrolytic destruction of the bacterial cell. Begin with events in the nucleus and end with the destruction of the pathogen.

Accepted Answer

Sequence of events: DNA transcription in

Exam 4: Organization of the Cell

Evidence that all living cells have a common origin is best illustrated by:

Which of the following organelles plays an important role in apoptosis, or programmed cell death?

Microfilaments are linked with one another and with other proteins by linker proteins.

What is the microtubule arrangement of a flagellum or cilium?

What is the primary function of mitochondria?

The cis face of the Golgi complex is most directly involved in which process?

Proteins that are synthesized by ribosomes may be further modified within which organelle?

DNA transcribes its information into what type of molecule?

Mitochondria play an important role in cell necrosis.

What is a characteristic found in both prokaryotic and eukaryotic cells?

Briefly compare the functions of chloroplasts and mitochondria. Identify specific structures in your comparison.

The force necessary to cause microtubules of cilia and flagella to slide alongside one another is provided through the action of ____ proteins, which derive the energy to perform their work directly from ____ molecules.

What is found between the primary walls of adjacent cells which cause them to tightly adhere to one another?

Identify two structural components of the cytoskeleton, and briefly describe their function(s).

A basal body anchors what part of a cell?

Kinesin transports organelles toward the minus end of a microtubule.

Briefly compare prokaryotic and eukaryotic cells. Identify three ways that differences between eukaryotes and prokaryotes impact cell function.

The micrometer (μm) is the most convenient unit for measuring cells.

A bacterial pathogen has just entered a human body. Describe the sequence of events that will lead to the production of enzymes and the hydrolytic destruction of the bacterial cell. Begin with events in the nucleus and end with the destruction of the pathogen.

A View of Life

Atoms and Molecules: the Chemical Basis of Life

The Chemistry of Life: Organic Compounds

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Photosynthesis: Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

DNA: The Carrier of Genetic Information

Gene Expression

Gene Regulation

DNA Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure, Growth, and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Protection, Support, and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology: Population Ecology

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

Filters

The force necessary to cause microtubules of cilia and flagella to slide alongside one another is provided through the action of proteins, which derive the energy to perform their work directly from molecules.