Cash-back offer from 25th to 30th November 2022. Get flat 10% cash-back credited to your account for a minimum transaction of $50. Post Your Question Today!

Question DetailsNormal
$ 20.00

TEST BANK FOR Essential Cell Biology 4th edition by Bruce Alberts, Dennis Bray, Karen Hopkin

Question posted by
Online Tutor Profile
request

1: CELLS: THE FUNDAMENTAL UNITS OF LIFE
Unity and Diversity of Cells
1-1 Living systems are incredibly diverse in size, shape, environment, and behavior. It is
estimated that there are between 10 million and 100 million different species. Despite this
wide variety of organisms, it remains difficult to define what it means to say something is
alive. Which of the following can be described as the smallest living unit?
(a) DNA
(b) cell
(c) organelle
(d) protein
1-2 Indicate whether the following statements are true or false. If the statement is false,
explain why it is false.
A. The Paramecium is a multicellular microorganism covered with hairlike cilia.
B. Cells of different types can have different chemical requirements.
C. The branchlike extensions that sprout from a single nerve cell in a mammalian
brain can extend over several hundred micrometers.
1-3 For each of the following sentences, fill in the blanks with the best word or phrase
selected from the list below. Not all words or phrases will be used; each word or phrase
should be used only once.
Cells can be very diverse: superficially, they come in various sizes, ranging from
bacterial cells such as Lactobacillus, which is a few __________________ in
length, to larger cells such as a frog’s egg, which has a diameter of about one __________________. Despite the diversity, cells resemble each other to an
astonishing degree in their chemistry. For example, the same 20
__________________ are used to make proteins. Similarly, the genetic
information of all cells is stored in their __________________. Although
__________________ contain the same types of molecules as cells, their inability
to reproduce themselves by their own efforts means that they are not considered
living matter.
amino acids micrometer(s) viruses
DNA millimeter(s) yeast
fatty acids plants
meter plasma membranes
1-4 How does cellular specialization serve multicellular organisms and how might a high
degree of specialization be detrimental?
1-5 The flow of genetic information is controlled by a series of biochemical reactions that
result in the production of proteins, each with its own specific order of amino acids.
Choose the correct series of biochemical reactions from the options presented here.
(a) replication, transcription, translation
(b) replication, translation, transcription
(c) translation, transcription, replication
(d) translation, replication, transcription
1-6 Proteins are important architectural and catalytic components within the cell, helping to
determine its chemistry, its shape, and its ability to respond to changes in the
environment. Remarkably, all of the different proteins in a cell are made from the same
20 __________. By linking them in different sequences, the cell can make protein
molecules with different conformations and surface chemistries, and therefore different
functions.
(a) nucleotides.
(b) sugars.
(c) amino
acids.
(d) fatty acids.
1-7 Which statement is NOT true about mutations?
(a) A mutation is a change in the DNA that can generate offspring less fit for survival
than their parents.
(b) A mutation can be a result of imperfect DNA duplication.
(c) A mutation is a result of sexual reproduction.
(d) A mutation is a change in the DNA that can generate offspring that are as fit for
survival as their parents are.
1-8 Changes in DNA sequence from one generation to the next may result in offspring that are altered in fitness compared with their parents. The process of change and selection
over the course of many generations is the basis of __________.
(a) mutation.
(b) evolution.
(c) heredity.
(d) reproduction.
1-9 Select the option that best finishes the following statement: “Evolution is a process
__________.”
(a) that can be understood based on the principles of mutation and selection.
(b) that results from repeated cycles of adaptation over billions of years.
(c) by which all present-day cells arose from 4–5 different ancestral cells.
(d) that requires hundreds of thousands of years.
1-10 Select the option that correctly finishes the following statement: “A cell’s genome _________________.”
(a) is defined as all the genes being used to make protein.
(b) contains all of a cell’s DNA.
(c) constantly changes, depending upon the cell’s environment.
(d) is altered during embryonic development.
Cells Under the Microscope
1-11 Which statement is NOT true about the events/conclusions from studies during the mid-
1800s surrounding the discovery of cells?
(a) Cells came to be known as the smallest universal building block of living
organisms.
(b) Scientists came to the conclusion that new cells can form spontaneously from the
remnants of ruptured cells.
(c) Light microscopy was essential in demonstrating the commonalities between
plant and animal tissues.
(d) New cells arise from the growth and division of previously existing cells.
1-12 What unit of length plant or animal cell?
would you generally use to measure atypical
(a) centimeters
(b) nanometers
(c) millimeters
(d) micrometers
1-13 Match the type of microscopy on the left with the corresponding description provided
below. There is one best match for each.
A. confocal
B. transmission electron
C. fluorescence
D. phase-contrast
E. scanning electron
F. bright-field
____ uses a light microscope with an optical component to take advantage of the different
refractive indices of light passing through different regions of the cell.
____ employs a light microscope and requires that samples be fixed and stained in order
to reveal cellular details.
____ requires the use of two sets of filters. The first filter narrows the wavelength range
that reaches the specimen and the second blocks out all wavelengths that pass
back up to the eyepiece except for those emitted by the dye in the sample.
____ scans the specimen with a focused laser beam to obtain a series of two-dimensional
optical sections, which can be used to reconstruct an image of the specimen in
three dimensions. The laser excites a fluorescent dye molecule, and the emitted light from each illuminated point is captured through a pinhole and recorded by a
detector.
____ has the ability to resolve cellular components as small as 2 nm.
____ requires coating the sample with a thin layer of a heavy metal to produce three-
dimensional images of the surface of a sample.
1-14 Indicate whether the following statements are true or false. If the statement is false,
explain why it is false.
A. The nucleus of an animal cell is round, small, and difficult to distinguish using
light microscopy.
B. The presence of the plasma membrane can be inferred by the well-defined
boundary of the cell.
C. The cytosol is fairly empty, containing a limited number of organelles, which
allows room for rapid movement via diffusion.
1-15 Cell biologists employ targeted fluorescent dyes or modified fluorescent proteins in both
standard fluorescence microscopy and confocal microscopy to observe specific details in
the cell. Even though fluorescence permits better visualization, the resolving power is
essentially the same as that of a standard light microscope because the resolving power of
a microscope is limited by the __________ of light.
(a) absorption
(b) intensity
(c) filtering
(d) wavelength
1-16 What is the smallest distance two points can be separated and still resolved using light
microscopy?
(a) 20 nm
(b) 0.2 μm
(c) 2 μm
(d) 200 μm
The Prokaryotic Cell
1-17 By definition, prokaryotic cells do not possess __________.
(a) a nucleus.
(b) replication machinery.
(c) ribosomes.
(d)

Available Answer
$ 20.00

[Solved] TEST BANK FOR Essential Cell Biology 4th edition by Bruce Alberts, Dennis Bray, Karen Hopkin

  • This Solution has been Purchased 1 time
  • Submitted On 16 Jan, 2022 09:07:48
Answer posted by
Online Tutor Profile
solution
1: CELLS: THE FUNDAMENTAL UNITS OF LIFE Unity and Diversity of Cells 1-1 Living systems are incredibly diverse in size, shape, environment, and behavior. It is estimated that there are between 10 million and 100 million different species. Despite this wide variety of organisms, it remains difficult to define what it means to say something is alive. Which of the following can be described as the smallest living unit? (a) DNA (b) cell (c) organelle (d) protein 1-2 Indicate whether the following statements are true or false. If the statement is false, explain why it is false. A. The Paramecium is a multicellular microorganism covered with hairlike cilia. B. Cells of different types can have different chemical requirements. C. The branchlike extensions that sprout from a single nerve cell in a mammalian brain can extend over several hundred micrometers. 1-3 For each of the following sentences, fill in the blanks with the best word or phrase selected from the list below. Not all words or phrases will be used; each word or phrase should be used only once. Cells can be very diverse: superficially, they come in various sizes, ranging from bacterial cells such as Lactobacillus, which is a few __________________ in length, to larger cells such as a frog’s egg, which has a diameter of about one __________________. Despite the diversity, cells resemble each other to an astonishing degree in their chemistry. For example, the same 20 __________________ are used to make proteins. Similarly, the genetic information of all cells is stored in their __________________. Although __________________ contain the same types of molecules as cells, their inability to reproduce themselves by their own efforts means that they are not considered living matter. amino acids micrometer(s) viruses DNA millimeter(s) yeast fatty acids plants meter plasma membranes 1-4 How does cellular specia...
Buy now to view the complete solution
Other Similar Questions
User Profile
NUMBE...

Health and Health Care Delivery in Canada 2nd Edition Test Bank

Chapter 1: The History of Health Care in Canada MULTIPLE CHOICE 1. When and where was Canada’s first medical school established? a. Saskatoon, in 1868 b. Ottawa, in 1867 c. Montreal, in 1825 d. Kingston, in 1855 ANS: C...
User Profile
Acade...

ATI Pharmacology Proctored Exam Test Bank

ATI Pharmacology Proctored Exam Test Bank ATI Pharmacology Proctored Exam Test Bank ATI Pharmacology Proctored Exam Test Bank...
User Image
QuizM...

Test Bank for Medical Terminology Shortcourse 11th Edition by Chabner

Test Bank for Medical Terminology Shortcourse 11th Edition by ChabnerTest Bank for Medical Terminology Shortcourse 11th Edition by Chabner...
User Image
newnu...

PSYCHOLOGY 101Compilation of Test Bank Reviewer for Psychometrician

PSYCHOLOGY 101Compilation of Test Bank Reviewer for Psychometrician...
User Profile
joe96

PSYCHOLOGY 101Compilation of Test Bank Reviewer for Psychometrician

PSYCHOLOGY 101Compilation of Test Bank Reviewer for Psychometrician...

The benefits of buying study notes from CourseMerits

homeworkhelptime
Assurance Of Timely Delivery
We value your patience, and to ensure you always receive your homework help within the promised time, our dedicated team of tutors begins their work as soon as the request arrives.
tutoring
Best Price In The Market
All the services that are available on our page cost only a nominal amount of money. In fact, the prices are lower than the industry standards. You can always expect value for money from us.
tutorsupport
Uninterrupted 24/7 Support
Our customer support wing remains online 24x7 to provide you seamless assistance. Also, when you post a query or a request here, you can expect an immediate response from our side.
closebutton

$ 629.35