what is the shape of bifidobacterium course hero

Where is Bifidobacterium found in the body?

Jun 12, 2015 · Question 11 1 / 1 pts What is the shape of Bifidobacterium? Correct! rod coccus helix

Is Corynebacterium diphtheriae classified as high G+C Gram positive?

Bifidobacterium Rods of various shapes present singly or in chains arranged in V. Bifidobacterium rods of various shapes present singly. School Rizal Technological University; Course Title BIOL 123A; Uploaded By PresidentCrownLobster11. Pages 50 …

What are the characteristics of Corynebacterium?

Nov 16, 2016 · Question 11 1 / 1 pts What is the shape of Bifidobacterium ? Question 13 1 / 1 pts What effect does Streptococcus bovis have on humans ? Question 14 1 / 1 pts True or False : Escherichia coli is gram-positive .

What are the characteristics of Actinobacteria?

Apr 20, 2015 · 1 / 1 pts Question 4 What is the shape of Bifidobacterium? 1 / 4. rod. rod Correct! Correct! 1 / 1 pts Question 5 True or False: Escherichia coli is gram-positive. False Correct! Correct! 1 / 1 pts Question 6 Chlamydia trachomatis: is a human pathogen, gram negative, bacteria Correct! ... Course Hero, Inc.

What is the G+C of a gram positive bacteria?

The low G+C gram-positive bacteria have less than 50% guanine and cytosine in their DNA, and this group of bacteria includes a number of genera of bacteria that are pathogenic.

Is Mycoplasma spp. a Gram positive?

Although Mycoplasma spp. do not possess a cell wall and , therefore, are not stained by Gram-stain reagents, this genus is still included with the low G+C gram-positive bacteria. The genus Mycoplasma includes more than 100 species, which share several unique characteristics. They are very small cells, some with a diameter of about 0.2 μm, which is smaller than some large viruses. They have no cell walls and, therefore, are pleomorphic, meaning that they may take on a variety of shapes and can even resemble very small animal cells. Because they lack a characteristic shape, they can be difficult to identify. One species, M. pneumoniae, causes the mild form of pneumonia known as “ walking pneumonia ” or “ atypical pneumonia .” This form of pneumonia is typically less severe than forms caused by other bacteria or viruses.

What is the class of bacteria that produces endospores?

One large and diverse class of low G+C gram-positive bacteria is Clostridia. The best studied genus of this class is Clostridium. These rod-shaped bacteria are generally obligate anaerobes that produce endospores and can be found in anaerobic habitats like soil and aquatic sediments rich in organic nutrients.

What is the order of Lactobacillales?

The order Lactobacillales comprises low G+C gram-positive bacteria that include both bacilli and cocci in the genera Lactobacillus, Leuconostoc, Enterococcus, and Streptococcus. Bacteria of the latter three genera typically are spherical or ovoid and often form chains.

What is the name of the bacteria that causes boils?

Strains of S. aureus cause a wide variety of infections in humans, including skin infections that produce boils, carbuncles, cellulitis, or impetigo. Certain strains of S. aureus produce a substance called enterotoxin, which can cause severe enteritis, often called staph food poisoning.

What is the mild form of pneumonia?

One species, M. pneumoniae, causes the mild form of pneumonia known as “ walking pneumonia ” or “ atypical pneumonia .”. This form of pneumonia is typically less severe than forms caused by other bacteria or viruses. Table 3 summarizes the characteristics of notable genera low G+C Gram-positive bacteria.

Why was Marsha's sputum sent to the lab?

Marsha’s sputum sample was sent to the microbiology lab to confirm the identity of the microorganism causing her infection. The lab also performed antimicrobial susceptibility testing (AST) on the sample to confirm that the physician has prescribed the correct antimicrobial drugs.