Question 1

In which type of microscopy is a beam of electrons used to scan the specimen, followed by the conversion of the excited electrons to a three-dimensional image? ​

Accepted Answer

A) confocal laser scanning microscopy 
B) phase-contrast microscopy 
C) bright field microscopy 
D) scanning electron microscopy 
E) fluorescence microscopy 
A) confocal laser scanning microscopy 
B) phase-contrast microscopy 
C) bright field microscopy 
D) scanning electron microscopy 
E) fluorescence microscopy

Question 2

Match between columns
                        Premises: smooth ER

Accepted Answer

The Answer of I and C and  A  is...

Question 3

During cell fractionation, the ____ cannot be isolated since it is destroyed when intact cells are lysed. ​

Accepted Answer

A) lysosomes 
B) mitochondria 
C) plasma membrane 
D) proteins 
E) nucleic acids 
A) lysosomes 
B) mitochondria 
C) plasma membrane 
D) proteins 
E) nucleic acids

Question 4

The prokaryotic chromosome is comprised of a ____.

Accepted Answer

A) highly folded mass of a single, linear molecule of DNA 
B) loosely folded mass of a single, linear molecule of DNA 
C) highly folded mass of a double, circular molecule of DNA 
D) highly folded mass of a single, circular molecule of DNA 
E) loosely folded mass of a single, circular molecule of DNA 
A) highly folded mass of a single, linear molecule of DNA 
B) loosely folded mass of a single, linear molecule of DNA 
C) highly folded mass of a double, circular molecule of DNA 
D) highly folded mass of a single, circular molecule of DNA 
E) loosely folded mass of a single, circular molecule of DNA

Question 5

Match between columns
                        Premises: mitochondria

Accepted Answer

The Answer of found in plant cells only and found is...

Question 6

Gap junctions ____. ​

Accepted Answer

A) seal the spaces between cells 
B) allow ions and small molecules to pass between cells 
C) allow plant cells to communicate with each other 
D) give the cell its shape 
E) anchor the cell membrane to the cell wall 
A) seal the spaces between cells 
B) allow ions and small molecules to pass between cells 
C) allow plant cells to communicate with each other 
D) give the cell its shape 
E) anchor the cell membrane to the cell wall

Question 7

E. coli is propelled by ____. ​

Accepted Answer

A) rotating bundles of pili 
B) a single cilium 
C) a single flagellum 
D) rotating bundles of cilia 
E) rotating bundles of flagella 
A) rotating bundles of pili 
B) a single cilium 
C) a single flagellum 
D) rotating bundles of cilia 
E) rotating bundles of flagella

Question 8

Eukaryotic cilia and flagella arise from which of the following cellular components?

Accepted Answer

A) nucleus ​ 
B) Golgi complex 
C) centrioles 
D) chromosomes 
E) nucleolus 
A) nucleus ​ 
B) Golgi complex 
C) centrioles 
D) chromosomes 
E) nucleolus

Question 9

Over time, cancerous cells typically lose the cell adhesion molecules embedded in their plasma membrane. Loss of these molecules is best associated with which of the following traits of cancer cells? ​

Accepted Answer

A) increased rate of cell division ​ 
B) production of new proteins 
C) angiogenesis 
D) migration to new locations in the body 
E) loss of chromosomes 
A) increased rate of cell division ​ 
B) production of new proteins 
C) angiogenesis 
D) migration to new locations in the body 
E) loss of chromosomes

Question 10

The membrane that surrounds the central vacuole is the ____. ​

Accepted Answer

A) chloroplast ​ 
B) tonoplast 
C) chromoplast 
D) amyloplast 
E) ionoplast 
A) chloroplast ​ 
B) tonoplast 
C) chromoplast 
D) amyloplast 
E) ionoplast

Question 11

Cellular respiration is the process by which ____ and ____ are converted to water and carbon dioxide during the synthesis of ATP. ​

Accepted Answer

A) CO2; glucose ​ 
B) CO2; fats 
C) O2; CO2 
D) O2; glucose 
E) ATP; O2 
A) CO2; glucose ​ 
B) CO2; fats 
C) O2; CO2 
D) O2; glucose 
E) ATP; O2

Question 12

What is a function of prokaryotic common pili? ​

Accepted Answer

A) biofilm formation 
B) transfer of DNA 
C) protein polymerization 
D) energy production 
E) lipid synthesis 
A) biofilm formation 
B) transfer of DNA 
C) protein polymerization 
D) energy production 
E) lipid synthesis

Question 13

The main components of the extracellular matrix are ____. ​

Accepted Answer

A) glycolipids ​ 
B) phospholipids 
C) glycoproteins 
D) cellulose 
E) glucose 
A) glycolipids ​ 
B) phospholipids 
C) glycoproteins 
D) cellulose 
E) glucose

Question 14

Some prokaryotes have a capsule, which is an external layer of polysaccharides that protects the cells from physical damage.

Accepted Answer

A) True 
 B)False

Question 15

In cell fractionation, which cellular structure or molecule is isolated in a pellet after the first centrifugation? ​

Accepted Answer

A) nuclei 
B) mitochondria 
C) ribosomes 
D) proteins 
E) nucleic acids 
A) nuclei 
B) mitochondria 
C) ribosomes 
D) proteins 
E) nucleic acids

Question 16

Match between columns
                        Premises: chloroplast

Accepted Answer

The Answer of D  and F and G and is...

Question 17

Gap junctions that connect nerve cells in dental pulp are responsible for the discomfort felt when teeth are damaged.

Accepted Answer

A) True 
 B)False

Question 18

Chloroplasts are the site of ____.

Accepted Answer

A) DNA synthesis ​ 
B) cellular digestion 
C) protein synthesis 
D) photosynthesis 
E) lipid synthesis 
A) DNA synthesis ​ 
B) cellular digestion 
C) protein synthesis 
D) photosynthesis 
E) lipid synthesis

Question 19

Amyloplasts are responsible for the colors of ripening fruits or autumn leaves.

Accepted Answer

A) True 
 B)False

Question 20

Plant cells permit ions and small molecules to move between adjacent cells by means of cytoplasmic channels in their cell walls known as ____. ​

Accepted Answer

A) gap junctions 
B) plasmodesmata 
C) desmosomes 
D) cell junctions ​ 
E) tonoplasts 
A) gap junctions 
B) plasmodesmata 
C) desmosomes 
D) cell junctions ​ 
E) tonoplasts

Exam 4: Cells

In which type of microscopy is a beam of electrons used to scan the specimen, followed by the conversion of the excited electrons to a three-dimensional image? ​

During cell fractionation, the ____ cannot be isolated since it is destroyed when intact cells are lysed. ​

The prokaryotic chromosome is comprised of a ____.

Gap junctions ____. ​

E. coli is propelled by ____. ​

Eukaryotic cilia and flagella arise from which of the following cellular components?

Over time, cancerous cells typically lose the cell adhesion molecules embedded in their plasma membrane. Loss of these molecules is best associated with which of the following traits of cancer cells? ​

The membrane that surrounds the central vacuole is the ____. ​

Cellular respiration is the process by which ____ and ____ are converted to water and carbon dioxide during the synthesis of ATP. ​

What is a function of prokaryotic common pili? ​

The main components of the extracellular matrix are ____. ​

Some prokaryotes have a capsule, which is an external layer of polysaccharides that protects the cells from physical damage.

In cell fractionation, which cellular structure or molecule is isolated in a pellet after the first centrifugation? ​

Gap junctions that connect nerve cells in dental pulp are responsible for the discomfort felt when teeth are damaged.

Chloroplasts are the site of ____.

Amyloplasts are responsible for the colors of ripening fruits or autumn leaves.

Plant cells permit ions and small molecules to move between adjacent cells by means of cytoplasmic channels in their cell walls known as ____. ​

Introduction to Biological Concepts and Research

Life, Chemistry, and Water

Biological Molecules: the Carbon Compounds of Life

Membranes and Transport

Energy, Enzymes, and Biological Reactions

Cellular Respiration: Harvesting Chemical Energy

Photosynthesis

Cell Communication

Cell Division and Mitosis

Meiosis: the Cellular Basis of Sexual Reproduction

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

DNA Structure, Replication, and Organization

From DNA to Protein

Regulation of Gene Expression

Bacterial and Viral Genetics

Dna Technologies: Making and Using Genetically Altered Organisms, and Other Applications

Genomes and Proteomes

The Development of Evolutionary Thought

Microevolution: Genetic Changes Within Populations

Speciation

Paleobiology and Macroevolution

Systematic Biology: Phylogeny and Classification

The Origin of Life

Prokaryotes and Viruses

Protists

Seedless Plants

Seed Plants

Fungi

Animal Phylogeny, Acoelomates, and Protostomes

Deuterostomes: Vertebrates and Their Closest Relatives

The Plant Body

Transport in Plants

Plant Nutrition

Reproduction and Development in Flowering Plants

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Information Flow and the Neuron

Nervous Systems

Sensory Systems

The Endocrine System

Muscles, Bones, and Body Movements

The Circulatory System

Defenses Against Disease

Gas Exchange: the Respiratory System

Animal Nutrition

Regulating the Internal Environment

Animal Reproduction

Animal Development

Ecology and the Biosphere

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Biodiversity and Conservation Biology

Animal Behavior

Filters

In which type of microscopy is a beam of electrons used to scan the specimen, followed by the conversion of the excited electrons to a three-dimensional image?

During cell fractionation, the ____ cannot be isolated since it is destroyed when intact cells are lysed.

Gap junctions ____.

E. coli is propelled by ____.

Over time, cancerous cells typically lose the cell adhesion molecules embedded in their plasma membrane. Loss of these molecules is best associated with which of the following traits of cancer cells?

The membrane that surrounds the central vacuole is the ____.

Cellular respiration is the process by which and are converted to water and carbon dioxide during the synthesis of ATP.

What is a function of prokaryotic common pili?

The main components of the extracellular matrix are ____.

In cell fractionation, which cellular structure or molecule is isolated in a pellet after the first centrifugation?

Plant cells permit ions and small molecules to move between adjacent cells by means of cytoplasmic channels in their cell walls known as ____.