1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
a_sh-v [17]
4 years ago
13

Difference between gram positive and gram negative bacteria

Biology
1 answer:
yarga [219]4 years ago
5 0

Danish scientist Hans Christian Gram devised a method to differentiate two types of bacteria based on the structural differences in their cell walls. In his test, bacteria that retain the crystal violet dye do so because of a thick layer of peptidoglycan and are called Gram-positive bacteria. In contrast, Gram-negative bacteria do not retain the violet dye and are colored red or pink. Compared with Gram-positive bacteria, Gram-negative bacteria are more resistant against antibodies because of their impenetrable cell wall. These bacteria have a wide variety of applications ranging from medical treatment to industrial use and Swiss cheese production.

You might be interested in
Water molecules can stick to other water molecules through which type of
pentagon [3]

Answer:

Hydrogen Bonds

Explanation:

Hydrogen bonds allow for hydrogens to bond to each other. They are the strongest type of intermolecular bonds.

Hydrogen bonds are dipole-dipole, and when water molecules are close to each other, the hydrogen bonds form between the hydrogen atoms.

8 0
3 years ago
Read 2 more answers
The table shows data about the percentages of gases in air inhaled and exhaled. The gases are oxygen (O2), nitrogen (N2), and ca
brilliants [131]

Answer:

A. 22.85 mL of oxygen

Explanation:

Data:

The total volume of Oxygen =500 mL.

Percentage of Oxygen inhaled= 20.94 %

Amount of Oxygen inhaled =20.94 /100 x500 ml

                                            =104.7 ml

Percentage of Oxygen exhaled = 16.37 %

Amount of Oxygen inhaled =16.37 /100 x500 ml

                                              =81.85 ml

Difference  b/w amount of oxygen inhaled/exhaled= 104.7 ml-81.85 ml

                                            =22.85 ml

Therefore, Option A is correct option.

Hope it help!

3 0
4 years ago
Read 2 more answers
From the following, choose the factors that may produce or increase the risk of mutations.
mel-nik [20]

Answer:

High Temperature, X-rays, Radiation, Some Chemicals

Explanation:

In general, mutations happen due to some error in the DNA duplication process, however, there are certain factors in the environment that can increase the incidence rate of these genetic errors. Excessive exposure to x-rays, substances present in smoke, ultraviolet light, excessive temperature, nitrous acid and some dyes present in food, for example, can favor the appearance of mutations. In general, we can say that mutations can be caused by high temperature, X-rays, radiation, some chemicals.

8 0
3 years ago
What is the most common eating disorder in both males and females?​?
ZanzabumX [31]
There isn't a specific 'most common eating disorder', but most people would have a disorder known as binge eating disorder, which is eating more than necessary. The other top 2 include anorexia nervosa or bulimia nervosa.
6 0
3 years ago
What prevents a lake or ocean from freezing solid
inessss [21]
The surface layer of the water freezes solid creating a barrier that insulates the ice below so that it keeps a steady temperature usually a few degrees above freezing (32 degrees).

7 0
3 years ago
Other questions:
  • What advantage does nuclear power have over fossil fuels
    8·1 answer
  • _____ is the process that involves oxygen and breaks down food molecules to release energy.
    10·2 answers
  • What are 2 microorganisms
    11·1 answer
  • Which marine ecosystem has the fewest available nutrients and the lowest productivity?
    13·2 answers
  • Question 44 (2 points)
    11·1 answer
  • Which one of the following factors contributes to hypertension
    9·1 answer
  • How are cancer cells different from healthy cells?
    10·1 answer
  • Hello beautiful people on this earth.... I need some help asap please and thank you! :)
    5·1 answer
  • Like all valid scientific theories, modern cell theory
    13·1 answer
  • The facial nerve (cn vii) passes through the opening in the temporal bone called the?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!