Log in
Biology
1
answer
1
watching
1,043
views

A bacterium is suddenly expelled from a warm human intestine into the cold world outside. Which of the following adjustments might the bacterium make to maintain the same level of membrane fluidity that the cell had in the intestine? Explain

Watch
1
answer
1
watching
1,043
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Beverley Smith
Beverley SmithLv2
28 Sep 2019

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share

Related textbook solutions

Molecular Cell Biology
8 Edition,
Lodish
ISBN: 9781464183393
Biology: Science for Life with Physiology
6 Edition,
Belk
ISBN: 9780134555430
Biology
2nd Edition, 2013
Openstax
ISBN: 9781947172517
Concepts of Biology
OER Edition,
Openstax
ISBN: 9781938168116
Essentials of Biology
5 Edition,
Mader
ISBN: 9781259660269

Related questions

Epulopiscium fishelsoni is a bacterium measuring up to600 mm long by 80 mm wide. Found in the intestines of surgeonfishthat live in and around coral reefs of the Pacific Ocean, E.fishelsoni was first thought to be a protist. DNA analysislater showed that E. fishelsoni belonged in thegram-positive cell lineage. E. fishelsoni does not have asmooth outer membrane; it is wrinkled with many invaginations(pockets) and folds. What size range do most bacterial and archaealcells fall into? Please hypothesize (i) what problem(s)related to size must be solved by this bacterium, (ii) howit might solve the problem, (iii) how this solution isdifferent from that of another macroscopic bacterium,Thiomargarita namibiensis, and (iv) how bothsolutions are different from that reached over evolutionary time byeukaryotic cells.

Select one answer.

How does the selective permeability of the membrane help thecell.

This allows the cell to maintain the proper shape.

This allows the cell to regulate what enters and exits

This allows the cell to maintain a constant temperature.

All of these

Question 6

Select one answer.

What is the role of carbohydrates in the plasma membrane?

cellular identification

adhesion

transport materials across the membrane

help maintain fluidity

Question 7

Select one answer.

Which component of the plasma membrane has the widest variety offunctions?

sterols

carbohydrates

phospholipids

proteins

Question 8

Select one answer.

All of the following have an effect on the fluidity of amembrane except:

interactions among fatty acids in the core of the bilayer

the cholesterol content

the ratio of saturated to unsaturated fatty acids

the presence of integral proteins in the membrane

HELP WITH BIO MULTI CHOICE QUESTIONS:

QUESTION 2

Which of the following structures discussed in class is NOT found on all bacteria?
Flagella
Capsid
Fimbria
Plasma membrane


QUESTION 3
You are presented with a strain of bacteria that is resistant to the antibiotic penicillin. What steps would you take to confirm that you have a resistant bacterium?
Perform a Gram stain to determine pink stained Gram-positive bacteria.
Perform a Gram stain to determine purple stained Gram-positive bacteria.
Perform a Gram stain to determine pink stained Gram-negative bacteria.
Perform a Gram stain to determine purple stained Gram-negative bacteria.

QUESTION 4
With respect to bacterial growth into a fresh culture tube containing nutrient broth, at which phase do organisms undergo binary fission the most rapidly?
Lag phase
Stationary
Exponential
death

QUESTION 5
How would antibiotic resistance be passed from one bacterium to another bacterium?
Through the flagella via a plasmid.
Through the sex pilus via chromosomal DNA.
Through the sex pilus via a plasmid.
Through the flagella via chromosomal DNA.

QUESTION 6
When an F plasmid integrates into the host chromosome, the strain is referred to as

Hfr.
F'.
F-.
F+.

QUESTION 7
If you remove the peptidoglycan layer from a Gram-positive cell, it would still stain purple with a Gram stain (T/F).
True
False

QUESTION 8
During infection with a bacteriophage, bacterial DNA is packaged into a capsid and will:

be integrated into the genome of a new bacterium upon ligation.
be integrated into the genome of a new virion upon recombination.
be integrated into the genome of a new bacterium upon recombination.
be integrated into the genome of a new virion upon liagation.

QUESTION 9
Which of the following statements best describes most bacteria?
They are generally harmful.
They are limited to living in a few habitats.
They are very common in the environment.
They are responsible for the “common cold.”


QUESTION 10
Prokaryotes lack some parts found in eukaryotic cells, including which item?
a nuclear membrane
DNA
one or more chromosomes
a plasma membrane
all of the above

QUESTION 11
With respect to gram negative bacteria, what is the order of the bacterial cell structure from outside to inside?
Thin peptidoglycan layer, plasma membrane

thick peptidoglycan layer, plasma membrane

outer membrane, thick peptidoglycan layer, plasma membrane

outer membrane, thin peptidoglycan layer, plasma membrane


QUESTION 12
In transformation, a piece of DNA from a dead host can be taken up by living host

True
False

Weekly leaderboard

Home
Homework Help 3,900,000
Biology 460,000
Start filling in the gaps now
Log in