Streptococcus is a genus of spheroidal bacteria that belongs to the Streptococcaceae family.
The bacteria's distinctive clustering in chains that resemble a string of beads is referred to as streptococcus ("twisted berry"). Microbiologically, streptococci are classified as gram-positive and nonmotile. Cocci :Streptococcus is a genus of gram-positive coccus (plural cocci) or spherical bacteria belonging to the Streptococcaceae family, which is part of the Lactobacillales (lactic acid bacteria) order in the Firmicutes phylum.
Gram-positive cocci are a diverse collection of bacteria that have a similar shape. Sarcina cells, for example, are grouped in cubical pockets. Streptococcus spp. resemble a string of pearls. Staphylococcus species do not divide on a regular plane.Bacilli :Streptococcus bacteria subdivide into Strep. pyogenes (Group A), Strep. agalactiae (Group B), enterococci (Group D), Strep viridans, and Strep pneumonia. Gram-positive bacilli (rods) subdivide according to their ability to produce spores.
If complete hemolysis of the blood cells is observed, the streptococci are classified as beta'hemolytic. M protein is considered the most important virulence component of S. pyogenes. Antibodies that react with M protein are produced in response to infection. A prospective antistreptococcus vaccination based on the M protein or a derivative of it is being studied.Tetrads :The tetrad occurs in a subgroup of the cocci where the bacterium divides in two planes to form a square of four bacteria called a tetrad. Some examples of tetrad-forming bacteria are the lactic acid bacilli, Aerococcus, a urinary tract pathogen and Pediococcus and Tetragenococcus, both of which ferment foods.
Tetrads are groups of four cocci that are positioned in the same plane (e.g. Micrococcus sp.). Sarcina is a bacterial genus that consists of eight cocci arranged in a cuboidal pattern (e.g. Sarcina ventriculi).Sarcinae :Sarcina is a Gram-positive cocci bacterium genus belonging to the Clostridiaceae family. After the cuboidal (2x2x2) cellular affiliations they create during division along three planes, the genus gets its name from the Latin word "sarcina," which means "pack or bundle."
Diplococci are pairs of cocci; streptococci are rows or chains of such cells; staphylococci are grapelike clusters of cells; sarcinae are packets of eight or more cells; and tetrads are groups of four cells in a square layout. Variations in the reproductive mechanism of bacteria result in these distinctive groups.Strepto :a combining term that means "twisted" and is used to make composite words: streptococcus
Streptococcus- a spherical or oval bacteria of the genus Streptococcus that occurs in pairs or chains and is harmful for humans, causing scarlet fever, tonsillitis, and other diseases.Fastidious :Streptococcus is a genus of gram-positive cocci that are organized in chains. These are fastidious bacteria that need blood or serum added to their culture medium. They are non-motile and do not produce spores. Most are facultative anaerobes, which means they can grow on enriched media.
Streptococcus pyogenes - it's a nutrient-concious bacteria that ferments glucose to make lactic acid and has stringent growth needs. This section explains the growth and maintenance of S. pyogenes to help in the research of this organism.Can Grow In Salt :On the basis of their salt tolerance, the salt tolerance test is used to identify enterococcal group D Streptococcus. Several bacteria, notably viridians streptococci, have been classified based on their capacity to thrive in the presence of a varying quantity of sodium chloride (NaCl).
The non-beta hemolytic streptococci (viridans, and non-enterococcal group D) do not grow in 6.5% NaCl broth; but some of the beta-hemolytic strains may grow in the broth.Can Grow In Acid :Some streptococci can create acids, grow in acidic surroundings (acidophilia), make acids at low pH levels (aciduric capability), and synthesis intracellular and external polysaccharides.
Dental caries is associated mainly with acid production at pH values below 5 by nongrowing bacteria in dental plaque. Oral streptococci cannot grow at pH above about 5, although they can lower the pH of suspensions or biofilms to values of 4 or lower.Normal Flora of The Skin:Bacteria make up the vast bulk of typical flora. Skin and nasal membranes are typically infected with Staphylococcus epidermidis.
Staphylococcus epidermidis is a Gram-positive bacterium that belongs to the Staphylococcus genus, which has around 40 species. It is found in marine sponges and is part of the normal human flora, most usually the skin flora and less commonly the mucosal flora.Sources: ( https://www.cdc.gov/ )
Which of these is not an effect of antibodies?
A. Activating complement proteins
B. Neutralizing toxins
C. Tagging pathogens for phagocytosis D.Perforating membranes of pathogens
Answer:
C
Explanation:
Tagging pathogens for phagocytosis D.Perforating membranes of pathogens
If distance equals speed multiplied by time,
then how far does a sound travel if it has a speed
of 330 m/s, and travels for 10 seconds? Be sure to
give an answer with units.
Answer:
3300 meters
Explanation:
so the formula is in the questtion
distance=speed*time
so distance=330*10
to get the units you have to look to see that the only unit that is a distance is meters
hope this helps!
Which of the following show similarities between organelles and organs of the body?
Answer:
Organelles are specialized structures that perform various jobs inside cells. The term literally means “little organs.” In the same way organs, such as the heart, liver, stomach, and kidneys, serve specific functions to keep an organism alive, organelles serve specific functions to keep a cell alive.
Explanation:
In what parts of the body would you expect oxyhaemoglobin to be breaking down to oxygen and haemoglobin ?
Answer:
Haemoglobin binds with oxygen in body locations where the oxygen concentration is high (in the lungs) and forms oxyhaemoglobin. Blood with a high concentration of oxygen is described as oxygenated
Evaluate the following statement:
The Lock-and-Key Model is analogous to two puzzle pieces fitting together. The
Induced-Fit Model is analogous to a hand slipping into a glove.
a. True
b. False
Answer:
true I know the answer because my teacher told me
what is the person's ultimate search in life? why?
Answer: The ultimate purpose of life is to be at a higher positive frequency than negative, as you move through the vicissitudes of life, such that you feel content at the moment of death.
Contentment at the moment of death ensures that you reconnect to your positive soul self after death, review soul lessons, heal and recuperate.
If you are not content at the moment if death , you may get lost in an invisible maze of difficulties, as a spirit in a human form and gave a difficult after life & /or next life. .. To be content at the moment of death requires several years of training in detachment, meditation and positive thinking, through life.
Explanation:
In the pregnancy time the embryonic cells are developed into different types of cells,tissues,organs How??
Answer:
The embryonic stage plays an important role in the development of the brain. Approximately four weeks after conception, the neural tube forms. This tube will later develop into the central nervous system including the spinal cord and brain. The neural tube begins to form along with an area known as the neural plate.
Explanation:
Based on the diagram,which statement is NOT true?
A food chain shows how
matter moves through an
ecosystem. Which of these
substances forms the base of
the matter in food chains and
food webs?
A. light
B. carbohydrates
C. iron and lead
Answer: B
Explanation:
Answer:
carbohydrates
Explanation:
3
A
C
9
12
15
What do the dotted lines, indicated with the arrow, represent in the DNA model above? (B.6A)
Answer:
[tex]\fbox\red{question\:given}[/tex]
[tex]\blue{what \:is\: photosynthesis}[/tex]
[tex]\huge\fbox\red{Answer↓}[/tex]
[tex]the \: process \: by \: which \: green \: plants \: \\ turn \: carbon \: dioxide \: and \: water\\ \: into \: food \:using \: energy \: \\from \: sunlight.[/tex]
Remove the roller bearing fastened to the shaft:
A. Dumplings in bearings.
B. Close the ring in the bearing or the ring in the bearing.
C. Close the ring in the bearing.
D. Roll out the outer ring of the bearing.
Answer:
B-Close the ring in the bearing or the ring in the bearing.
Explanation:
hope it's help
Need help right now can’t figure it out
Answer:
[tex]\huge\boxed{Alkane.}[/tex]
Explanation:
The given compound is an alkane because all the bonds between carbon are single. Alkanes have all single bonds and are thus called saturated hydrocarbons.
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH18074. Murphy ends her talk by saying, "It's not about the robots. It's about the data."
What does she mean by this? How is this pertinent to severe weather disasters?
Answer:
At the end of Murphy's talk she says it's not about the robots it's about the data meaning it is not about the robots but the data collected by the robots . This is relevant to natural disasters because robots can collect data more efficiently and with higher resolution better than we could without them. Also the robots collect this data in just seven hours when it normally takes up to two to three days.
Explanation:
I had the same question in my high school class and got 100%
Read the sentence. The girl wondered they were standing the grass was so tall. Select the relative adverbs in the correct order to fill in the blanks. where when which, where why, where
Question 10 of 20 :
Select the best answer for the question
10. What is the purpose of the introduction in an essay?
A. To focus on current statistics
B. To highlight the most important concepts
C. To explain the main idea to the reader
D. To establish the main idea of the essay
1. Why is environmental science important?
Short answer
Answer:
Our environment is very important to us because it is where we live and share resources with other species. ... Environmental science enlightens us on how to conserve our environment in the face of increasing human population growth and anthropogenic activities that degrade natural resources and ecosystems.
Explanation:
Our environment is very important to us because it is where we live and share resources with other species. ... Environmental science enlightens us on how to conserve our environment in the face of increasing human population growth and anthropogenic activities that degrade natural resources and ecosystems.
HELP QUICKLY Why are the deepest high tides so deep and the shallowest low tides so shallow? Hint: how are the Earth, Sun, and Moon aligned?
There are different kinds of tides. This change occur because when the gravitational pull of the sun works along with the gravitational pull of the moon on Earth, it leads to the oceans bulging out.
This result above makes the high tides as been little higher and low tides been little lower than normal.Spring tides are known to be the deepest as oceans levels are highest in this kind of tide. The neap tides are known to be the shallowest.
This often occurs when the moon, earth, and sun are said to be at a right-angled plane. Therefore, the gravitation pull of the moon and sun on the oceans do counteract each other making its net effect is smaller.
Learn more about Tide from
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Wings of birds,wings of insects and patagia of bats are analogous organ? why
Though MacArthur and Long each describe as what they see as an important part of living in the USA, they have very different purposes at work. Which statement BEST describes the different purposes of MacArthur and Long? usatestprep
Answer:
"MacArthur has spoken in his speech in the most articulate way about the sacrifice that the men of the country make to secure the well-being of citizens of the nations. The language is intended at making the listeners comply with his words by influencing and impressing them.
On the other hand, Long is trying to acquaint his listeners to the truth of the society that he has devised to be deteriorating the lives of common people of the United States."
(C)
HELP ME!!!!
how did the psalmist express his awe and thanksgiving to god for his abiding presence and love for him?
The Psalmist expresses his awe and thanksgiving to God for his affection by continually singing Him songs of praise.
The simplest way to thank God is to see Him everywhere and appreciate His presence in our life. It's important for us to remember that we are living because of Him.
The Psalms contain powerful quotes for giving thanks and finding blessings. Psalms 1 - 150 showed how the Psalmist was thanking God by singing praises to Him. The unifying theme of Psalms is praise for God.
Learn more about Psalms on:
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why there is a need for the height to work in the coordinating with with lungs
A biological factor that is correlated with borderline personality disorder is:
a)
a high level of testosterone.
b)
a low level of serotonin.
c)
a high level of serotonin.
d)
a low level of testosterone.
I’m sick of my parents I want a sister
Plant and Animal Cells
Which part of the cell is responsible for controlling the activities of the other parts of the cell?
O Nucleus
O Cell Membrane
O Vacuole
Answer:
Nucleus
The nucleus controls all the activities that happen in the cell
resistance to exploitation is a battle of wits with your captor
The statement is false because resistance to exploitation is not related to wits.
What is social exploitation?Social exploitation is understood as a social relationship in which some people are abused or used for the benefit of others due to their belonging to that category or status.
An example of social exploitation was slavery in which African blacks were used for different purposes during the colony because they belonged to indigenous communities in Africa.
In the example above, Africans had to submit to their captors by force and had no opportunity to oppose it because resistance to exploitation is not a matter of wits.
Learn more about slavery in: https://brainly.com/question/9331183
Which of the following are important functions of roots?
Roots are where cotyledons emerge.
Roots enable plants to spread over land areas.
Roots hold the plant in place in the ground.
Roots store minerals and carbohydrates for the plant.
Answer:
roots enable plants to spread over land areas or roots hold the plant in place in the ground
Answer: Peace ✌
Explanation:
Peace ✌
What type of cell is shown below?
Plant cell,egg cell,eukaryotic cell,prokaryotic cells?
Answer:
bacteria cell I think I'm probably wrong
what is the answer for 5.6÷16 answer quik
What are The electrons that are lost gained, or shared in chemical bonds
Answer: Valence electrons
Explanation: Valence electrons of the elements in the bond are shared. The gain , loss , or sharing of electrons occurs in every chemical bond.
Hope This Helps :)
Discuss the arguments for and against genetic therapy and genetic engineering.
Answer:
Reasons to ban germline gene editing include the profound risks to future children, thin medical justifications, reinforcing existing inequalities and creating new forms of discrimination, eroding public trust in responsible science, and undermining global agreements.
Explanation:
ppbag at it again