Question 1

Which of the following shapes are most common among prokaryotes?

Accepted Answer

A)  rodlike, cylindrical, and spherical 
B)  rodlike, spiral, and spherical 
C)  rodlike, circular, and spherical 
D)  rodlike, spiral, and cylindrical 
A)  rodlike, cylindrical, and spherical 
B)  rodlike, spiral, and spherical 
C)  rodlike, circular, and spherical 
D)  rodlike, spiral, and cylindrical B

Question 2

What is the eukaryotic chromosome composed of?

Accepted Answer

A)  DNA and carbohydrate 
B)  DNA only 
C)  DNA and protein 
D)  RNA only 
A)  DNA and carbohydrate 
B)  DNA only 
C)  DNA and protein 
D)  RNA only C

Question 3

Which network of protein filaments reinforce the inner surface of the nuclear envelope in animal cells?

Accepted Answer

A)  actins 
B)  tubulins 
C)  lamins 
D)  chromatins 
A)  actins 
B)  tubulins 
C)  lamins 
D)  chromatins C

Question 4

What is the function of gap junctions?

Accepted Answer

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

Question 5

Which unit of measurement is most commonly used for expressing cell size?

Accepted Answer

A)  centimetre (cm) 
B)  decimetre (dm) 
C)  micrometre (µm) 
D)  millimetre (mm) 
A)  centimetre (cm) 
B)  decimetre (dm) 
C)  micrometre (µm) 
D)  millimetre (mm)

Question 6

Which of the following extend as a bundle from the base to the tip of a flagellum or cilium?

Accepted Answer

A)  microfilaments 
B)  intermediate filaments 
C)  actins 
D)  microtubules 
A)  microfilaments 
B)  intermediate filaments 
C)  actins 
D)  microtubules

Question 7

In this drawing of a eukaryotic animal cell, identify the cellular structures indicated.  
-nucleus

Accepted Answer

The answer of In this drawing of a eukaryotic animal...

Question 8

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

Question 9

Which of the following is synthesized in the nucleoli?

Accepted Answer

A)  mRNAs 
B)  ribosomal subunits 
C)  chromatin 
D)  proteins 
A)  mRNAs 
B)  ribosomal subunits 
C)  chromatin 
D)  proteins

Question 10

In this drawing of a eukaryotic animal cell, identify the cellular structures indicated.  
-plasma membrane

Accepted Answer

The answer of In this drawing of a eukaryotic animal...

Question 11

In this drawing of a eukaryotic plant cell, identify the cellular structures indicated.  
-mitochondrion

Accepted Answer

The answer of In this drawing of a eukaryotic plant...

Question 12

Match each type of microscopy with the best description.
-scanning electron microscopy (SEM)

Accepted Answer

A) utilizes a thin beam of electrons to examine structures within a cell 
B) utilizes lasers to scan a fluorescently stained specimen; a computer focuses the light to show a single plane through a cell 
C) utilizes differences in the way light is bent (refraction) in areas of various cellular density to visualize living cells 
D) requires light passing through the specimen; typically involves staining with dye to enhance contrast; usually "fixes" and kills the cell 
E) a beam of electrons scanned over a whole cell allows visualization of surface structures; gives a 3D-appearing image 
A) utilizes a thin beam of electrons to examine structures within a cell 
B) utilizes lasers to scan a fluorescently stained specimen; a computer focuses the light to show a single plane through a cell 
C) utilizes differences in the way light is bent (refraction) in areas of various cellular density to visualize living cells 
D) requires light passing through the specimen; typically involves staining with dye to enhance contrast; usually "fixes" and kills the cell 
E) a beam of electrons scanned over a whole cell allows visualization of surface structures; gives a 3D-appearing image

Question 13

In plant cells, what provides cellular support and protects cells from pathogens?

Accepted Answer

A)  the cell wall 
B)  the cell membrane 
C)  the cytoplasm 
D)  the plasmodesmata 
A)  the cell wall 
B)  the cell membrane 
C)  the cytoplasm 
D)  the plasmodesmata

Question 14

Which cell structures store starch in plants?

Accepted Answer

A)  plastids 
B)  mitochondria 
C)  vacuoles 
D)  nucleus 
A)  plastids 
B)  mitochondria 
C)  vacuoles 
D)  nucleus

Question 15

If a lysosome is analogous to the animal cell, which of the following is analogous to the plant cell?

Accepted Answer

A)  a chloroplast 
B)  a cell wall 
C)  a tonoplast 
D)  a vacuole 
A)  a chloroplast 
B)  a cell wall 
C)  a tonoplast 
D)  a vacuole

Question 16

Staining with dye is a technique typically used to enhance contrast and visualization of cellular structures. Which microscope magnifies passing light directly through a specimen?

Accepted Answer

A)  a fluorescence microscope 
B)  a bright field microscope 
C)  a confocal laser scanning microscope 
D)  a phase-contrast microscope 
A)  a fluorescence microscope 
B)  a bright field microscope 
C)  a confocal laser scanning microscope 
D)  a phase-contrast microscope

Question 17

What comprises cytoskeletal elements?

Accepted Answer

A)  proteins 
B)  triglycerides 
C)  phospholipids 
D)  glycogen 
A)  proteins 
B)  triglycerides 
C)  phospholipids 
D)  glycogen

Question 18

In this drawing of a eukaryotic plant cell, identify the cellular structures indicated.  
-chloroplast

Accepted Answer

The answer of In this drawing of a eukaryotic plant...

Question 19

Match each description with the cellular structure that best corresponds.
-mitochondria

Accepted Answer

A) contain enzymes for intracellular digestion 
B) location of genetic material 
C) synthesize subunits that will be used to assemble ribosomes 
D) site of protein synthesis 
E) composed of cellulose; provides support and protection
F)synthesis of lipids
G)conversion of fuel molecules into energy
H)conversion of light energy into chemical energy
I)storage site in plant cells
J)synthesis of proteins for secretion
K)chemically modifies proteins
L)membrane-bound transport structure 
A) contain enzymes for intracellular digestion 
B) location of genetic material 
C) synthesize subunits that will be used to assemble ribosomes 
D) site of protein synthesis 
E) composed of cellulose; provides support and protection
F)synthesis of lipids
G)conversion of fuel molecules into energy
H)conversion of light energy into chemical energy
I)storage site in plant cells
J)synthesis of proteins for secretion
K)chemically modifies proteins
L)membrane-bound transport structure

Question 20

Which organelle contains hydrolytic enzymes for the digestion of proteins, lipids, nucleic acids, and polysaccharides?

Accepted Answer

A)  the Golgi complex 
B)  the rough endoplasmic reticulum 
C)  the nucleus 
D)  the lysosome 
A)  the Golgi complex 
B)  the rough endoplasmic reticulum 
C)  the nucleus 
D)  the lysosome

Exam 2: The Cell: an Overview

Which of the following shapes are most common among prokaryotes?

What is the eukaryotic chromosome composed of?

Which network of protein filaments reinforce the inner surface of the nuclear envelope in animal cells?

What is the function of gap junctions?

Which unit of measurement is most commonly used for expressing cell size?

Which of the following extend as a bundle from the base to the tip of a flagellum or cilium?

In this drawing of a eukaryotic animal cell, identify the cellular structures indicated. -nucleus

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?

Which of the following is synthesized in the nucleoli?

In this drawing of a eukaryotic animal cell, identify the cellular structures indicated. -plasma membrane

In this drawing of a eukaryotic plant cell, identify the cellular structures indicated. -mitochondrion

Match each type of microscopy with the best description. -scanning electron microscopy (SEM)

In plant cells, what provides cellular support and protects cells from pathogens?

Which cell structures store starch in plants?

If a lysosome is analogous to the animal cell, which of the following is analogous to the plant cell?

Staining with dye is a technique typically used to enhance contrast and visualization of cellular structures. Which microscope magnifies passing light directly through a specimen?

What comprises cytoskeletal elements?

In this drawing of a eukaryotic plant cell, identify the cellular structures indicated. -chloroplast

Match each description with the cellular structure that best corresponds. -mitochondria

Which organelle contains hydrolytic enzymes for the digestion of proteins, lipids, nucleic acids, and polysaccharides?

Light and Life

Energy and Enzymes

Cell Membranes and Signaling

Cellular Respiration

Photosynthesis

Cell Cycles

Genetic Recombination

The Chromosomal Basis of Mendelian Inheritance

Genetic Linkage, Sex-Linkage, and Other Non-Mendelian Inheritance Mechanisms

DNA Structure, Replication, and Repair

Gene Structure Expression, and Mutation

Regulation of Gene Expression

Dna Technologies

Genomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Speciation and Macroevolution

Systematics and Phylogenetics: Revealing the Tree of Life

Humans and Evolution

Defining Life and Its Origins

Viruses, Viroids, and Prions: Infectious Biological Particles

Bacteria and Archaea

Protists

Fungi

Plants

Animals

Conservation of Biodiversity

Population Ecology

Species Interactions and Community Ecology

Ecosystems

Animal Behaviour

Organization of the Plant Body

Transport in Plants

Reproduction and Development in Flowering Plants

Plant Nutrition

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Animal Nutrition

Gas Exchange: the Respiratory System

Internal Transport: the Circulatory System

Regulation of the Internal Environment: Water, Solutes, and Temperature

Control of Animal Processes: Endocrine Control

Animal Reproduction

Control of Animal Processes: Neural Control

Muscles, Skeletons, and Body Movements

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