What is the difference in the structure of the cell walls of gram-positive and grarn-negative
bacteria?

Answers

Answer 1

Answer:

The major difference between Gram-positive and Gram-negative peptidoglycan involves the thickness of the layers surrounding the plasma membrane. Whereas Gram-negative peptidoglycan is only a few nanometers thick, representing one to a few layers, Gram-positive peptidoglycan is 30–100 nm thick and contains many layers.

Explanation:


Related Questions

describe the appearance of the vacuole in a well watered plant

Answers

Answer:

Describe the appearance of the vacuole in a well-watered plant. What effect would this have on the cell wall of the plant? The vacuole would expand and take up most of the space inside the cell. This would create internal pressure on the cell wall.

Explanation:

what is an example of gravitational potential energy

Answers

Answer:

2y r

Explanation:

sir for k the hook any study buy

before it was known as "science," this branch of study was called what?

Answers

Answer:

biology is the correct answer

Before it was known as "science," this branch of study was called Natural Philosophy.

What do you mean by science?

The pursuit of knowledge is what is meant by the term "science." This approach describes and provides an explanation for natural occurrences based on observations and experiments. The term "science" can also refer to the arranged body of information that has been accumulated by individuals via the application of that system.

A person who works in a particular field of science and possesses in-depth knowledge about that field is called a scientist. Or, to be more general, anyone who studies or works in a scientific field is considered to be a scientist.

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What are 3 characteristics of a small shallow burn that indicate you should be seen by a doctor?

Answers

Answer:

The size of the burn. The cause (Thermal, Electrical, Chemical, Radiation, or Friction.) The part of the body where the burn occurred. The age and health of the burn victim

Explanation:

your welcome

Enzymes are described as catalysts, which means that they __________. View Available Hint(s)for Part A increase the free energy of the reactants to make the reaction go faster provide activation energy for the reactions they facilitate can alter the free energy change (ΔG) for a chemical reaction are proteins increase the rate of a reaction without being consumed by the reaction

Answers

Answer:

Enzymes are proteins that are able to increase the rate of a reaction without being consumed by the reaction. They are also called natural catalysts.

Explanation:

Enzymes increase the rate of chemical reactions inside cells by lowering the activation energy required for the reaction to proceed.

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in which phase of the cell cycle does dna replication occur?

Answers

Answer:

the S phase or the synthesis phase

Which process is responsible for the repair of multicellular organisms?

Answers

Answer:

Hey mate....

Explanation:

This is ur answer....

Mitosis

Mitosis is the process responsible for regeneration and repair. Mitosis helps in cell growth and development. Cells can grow old and wear off or they can get bruised and injured but eventually, they repair and regenerate.

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which type of rock is made of tiny bits of animal shells?

Answers

The answer is limestone

About_____________ percent of the solar energy reaching the outer atmosphere is reflected or scattered back into space.
ANSWER ASAP
a.10
b.30
c.50
d.90

Answers

Answer:

What is b.30

Explanation:

About 29 percent of the solar energy that arrives at the top of the atmosphere is reflected back to space by clouds, atmospheric particles, or bright ground surfaces like sea ice and snow. This energy plays no role in Earth's climate system.

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which statement about food production since 1960 is true?

Answers

Answer:

During this time our food production has grown even faster than our population

Explanation:

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what are the scientific importances of studying anatomical features of angiosperns​

Answers

Answer: All angiosperms are comprised of stamens which are the reproductive structures of the flowers. They produce the pollen grains that carry the hereditary information. The carpels enclose developing seeds that may turn into a fruit. The production of the endosperm is one of the greatest advantages of angiosperms.

Explanation:

1/10
To be determined
Which of the following are parts of the cell theory?
a All cells come from other cells.
b All organisms are composed of cells.
С
Cells are alive and the basic units of organization in
all organisms.
d All of these are parts of the cell theory,

Answers

Answer:

D is the answer All of those are parts of the cell theory!

what is the largest source of anthropogenic greenhouse gas emissions globally?

Answers

Answer:

Deforestation and other changes in land use also emit carbon dioxide and methane. The largest source of anthropogenic methane emissions is agriculture, closely followed by gas venting and fugitive emissions from the fossil-fuel industry.

Explanation:

Answer:

its a

Explanation:

1. Why do most enzymes have Km values the same or similar to the concentration of their substrates This is necessary for cooperative enzymes All answers are correct (except none) Allows the enzyme to function at Vmax None of these answers are correct Allows Vo to respond to changes in substrate concentration

Answers

Answer:

c

Explanation:

A close, interdependent relationship between two organisms is called . There are three main types of symbiotic relationships. In , both organisms benefit from the relationship. When one organism benefits but the other is harmed, their relationship is called . Occasionally, two organisms have a relationship where one organism benefits and the other is neither hurt nor helped. This type of relationship is called .

Answers

Answer:

A close, interdependent relationship between two organisms is called SYMBIOSIS . There are three main types of symbiotic relationships. In MUTUALISM, both organisms benefit from the relationship. When one organism benefits but the other is harmed, their relationship is called PARASITISM. Occasionally, two organisms have a relationship where one organism benefits and the other is neither hurt nor helped. This type of relationship is called COMMENSALISM.

The type of relationship where one organism benefits and the other is neither hurt nor helped is called commensalism.

What is commensalism?

In biology, commensalism is a connection between members of two different species in which one species uses the other for food or other purposes without causing the other any damage or gaining anything in return.

The commensal, or species that gains from the connection may take resources from the host species, which is unharmed, or find refuge, support, or means of movement. Frequently, a bigger host and a smaller commensal are in a commensal relationship.

The commensal species may exhibit significant morphological adaptation, whilst the host organism is virtually unaffected by the contact. Contrasting this connection with mutualism, which benefits both species,

A well-known illustration of a commensal is the remora (family Echineidae), a fish that travels in close proximity to sharks and other fish. Remoras have developed a flat, oval-sucking disc structure on top of their heads that cling to the bodies of their victims.

Remoras and pilot fishes both eat the leftover food from their hosts. Bird species like the magnificent egret (Ardea alba), which feeds on insects discovered by grazing animals or on soil creatures stirred up by plows, are other instances of commensals.

Therefore, this type of relationship is called commensalism.

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Which RNA nucleotide is complementary to thymine?

adenine

uracil

guanine

cytosine

Answers

Answer:

uracil

Explanation:

uracil ofc ig yuh

What is the number of chromosomes in each Meiosis I daughter cell

Answers

Answer:23 chromosomes

Explanation:

To take human being for example,

There is 46 chromosomes in a human cell, and half is from father, and the other half is from mother. We call the chromosome is a pair. We write it 2n= 46.

In the meiosis I, the chromosomes is 1n=23.

It is 23 chromosomes

It is often said that normal cells change into cancerous cells frequently in our bodies. Which of the following explanations accounts for the relative rarity of cancer?

Answers

Answer:

the different types of cells we each have since all of us are unique

Explanation:

A toy car that is 0.5 feet long is used to model the actions of

Answers

Answer:

0.5 ft / 15 ft = 1/30

The model is 1/30 the size of the actual car.

Is this correct?  

Which climate zone generally receives the least amount of the
sun's energy?
a) tropical zone
b) subtropical zone
c) temperate zone
d) subpolar zone
What are climate zones?

Answers

Answer:

d) subpolar zone

What do climate zones mean?

A climate zone is a world area or region distinguished from a neighbor by a major physical climatic characteristic that is of global scale.

which structures are common to both plant and animal cells?

Answers

Answer:

What are:

Nucleus

Cell Membrane

Cytoplasm

Mitochondria

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What molecule, located in the nucleus, is composed of two strands forming a double helix, and what is its function?
O It is a protein, and it catalyzes cellular reactions.
O It is a carbohydrate, and it is a source of cellular energy.
O It is DNA, and it stores the genetic information of cells.
It is RNA, and it is directly involved in the synthesis of proteins.
on

Answers

DNA because DNA always has a double helix

which statement correctly describes macromolecules?
A nitrogen is essential for Carbohydrate formation
B lipids or water loving molecules critical for cell functions
C most macromolecules contain carbon, hydrogen, and oxygen
D repeating units, called amino acids, contain phosphorous and are used to build nucleic acids

Answers

Answer:

I would go with C.

Explanation:

Macromolecules contain carbon, hydrogen, and oxygen. option A correctly describes the macromolecules.

Macromolecules:

Macromolecules are two or more atoms connected by chemical bonds.  Macromolecules contain carbon, hydrogen, and oxygen.

Carbon, hydrogen, and oxygen are essential for carbohydrate formation. Lipids are water-insoluble that are critical for cell functions. Nitrogen is used to build nucleic acids.

Carbon, hydrogen, and oxygen are 96 percent in nature. Calcium, phosphorus, and potassium are major elements. Boron, iodine, and silicon are 0.5 % in nature. Carbohydrates represent group of substance which include starch, sugars and cellulose.

Therefore, Macromolecules contain carbon, hydrogen, and oxygen. option A correctly describes the macromolecules.

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Which of the following describes how oxygen moves during respiration?

Answers

Answer:

b. External respiration- from the air to the blood; Internal respiration from the blood to the tissues.

Explanation:

Explain how fitness can change the allele frequency of a population. PLZ no link

Answers

Answer:

Natural selection can cause microevolution (change in allele frequencies).

Explanation:

With fitness-increasing alleles becoming more common in the population.

Fitness can affect the survival and reproduction rates of individuals with different alleles, leading to differential contribution to the next generation and changes in the frequency of these alleles in the population.

What is fitness?

Fitness is a measure of the reproductive success of an individual within a population. The fittest individuals are those that are most successful at passing their genes on to the next generation. When the environment changes, the selective pressures on a population also change. This can lead to changes in the relative fitness of different individuals, and thus changes in the allele frequencies of a population over time.

For example, if a population of birds lives on an island with small seeds, those birds with small beaks may be more fit than those with larger beaks. This is because they are better adapted to the environment and can more easily obtain food. Over time, the frequency of the small-beaked allele will increase in the population, while the frequency of the large-beaked allele will decrease.

Thus, fitness can drive changes in the allele frequency of a population over time by favoring those individuals with alleles that are better adapted to the environment.

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what do you think would happen to a population of bacteria in a petri dish over time in ideal condition?

Answers

Answer:

the bacteria would continue to grow untill the agar is completly corroded as the bacteria eats away at it, after the agar is consumed the bacteria would die away as it doesnt have the sufficient nutrients to live

Explanation:

Summary of Mk 3:22
summary of Lk 19:47
summary of Lk 13:33:34
summary. of Mt 17:12
summary of Mt 20:18-19
plss answer

Answers

Answer:

[tex]3 \times 22 = 66 \\ 2.19 + 47 = 66[/tex]

in the course of normal events leading to fertilization and eventually birth, the route of the egg, embryo, and finally fetus is from the ovary into the __________.

Answers

Answer:

uterus

Explanation:

What type of diffusion is aided with a transport protein?
a. Osmosis
b. Permeated diffusion
c. Facilitated diffusion
d. Osmotic diffusion
Which of the following is NOT a type of transport protein?

Answers

Answer:

b permeated diffusion ...........

Complete the blanks in the following paragraph using the appropriate words from the list:

anterior, bilateral, inferior, lateral, medial, posterior, superior

Dominic's friends thought they were really funny when they dropped a water balloon on his head! The water drenched the (1) ___ portion of his head and then ran down the (2) ___ portion of his body, getting the front of his shirt all wet. He and his younger brother decided to get back at his friends by sneaking up on them with their water guns. They tiptoed up behind C.J., soaking his back and the entire (3)___ of his body. Next, they snuck up on Tony. Dominic sprayed down the middle, (4)___ part of Tony's body while his brother sprayed the arms and other (5) ___ portions. Good thing it was a hot day because everyone was soaked by the end of the game!

Answers

Answer:

1 Superior

2 Anterior

3 Posterior

4 Medial

5 Bilateral

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Please do 3 hurry!!!! what do you understand by profession of human resources A ball is thrown straight up from the ground with an unknown velocity. It returns to the ground after 4.0 s. With what velocity did it leave the ground? Determine if I Il m based on the information given on the diagram. If yes, state the converse thatproves the lines are parallel. which of the following is the definition for speciation? an inherited or learned trait that increases an organisms chance of survival in its environment the evolutionary process through which new species emerge a process by which organisms well suited to their environment tend to pass their traits onto offspring a process by which one of the extreme variations of a trait is favored Solve the equation.y + 6 = -3y + 26O y=-8O y=-5O y = 5O y = 8 Match the words in the left-hand column to the appropriate blank in the sentences in the right-hand column. Use each word only once. 1. Nuclear fusion of hydrogen into helium occurs in the_______ . 2. Energy moves through the Sun's ________ by means of the rising of hot gas and falling of cooler gas. 3. Nearly all the visible light we see from the Sun is emitted from the_______ . 4. Most of the Sun's ultraviolet light is emitted from the narrow layer called the _______where temperature increases with altitude. 5. We can see the Sun's _______ most easily during total solar eclipses. 6. The _______ is the layer of the Sun between its core and convection zone. did shay's rebelllion lead to the constitution? why or why not? explain why you cant see our reflection better in a piece of metal !HELP 20 POINTS!! Which table represents exponential growth? solve for a,b 2^a 2^b=144 value of a+3b+2 is...please solve it...urgent... could yall help me pls What is the answer of the question below. Compare solving equations using addition with solving inequalities using addition If a proton is added to the nucleus of germaium what out comes would acure PLEASE HELP ITS DUE TMR A dresser with the mirror attached is 6.28 feet tall. The difference between their heights is 1.28 feet. What are the heights of the dresser and the mirror by themselves? Let the height of the dresser and the height of the mirror = y. =x Predict what would happen if plants disappear? HURRY PLEASEDecomposers will die because they will lose their food source.All secondary consumers will die because they will lose their food source.Oxygen will only be available during the daytime.There will be limited amount of oxygen in the air. Find the equation of the linear function represented by the table y 6 9 12 15 x 1 2 3 4 A sunflower is 15 inches tall and grows 2 inches a week. How many weeks will it take for theSunflower to be 23 inches tall? Need help making an equation!!