When counting bacteria, the difference between the standard plate (STP) count and a direct microscopic count is that STP counts the number of ......... ...cells only

Q: In lab, one of your classmates is confused because their calculations for bacteria in 1.0 gram of…

A: Here we have to introduce the concept of CFU/mL. This means Colony forming unit. This is the…

Q: Staphlococcus epidermis appears ............ whereas Escherichia coli appears ........ after the…

A: Bacteria are single-celled prokaryotic organisms that do not have a nucleus and membrane-enclosed…

Q: Regarding the Characteristics of a bacterial Capsule

A: Capsule is an envelope in some bacteria secreted as an extracellular structure (both gram positive…

Q: In his work with pneumonia-causing bacteria andmice, Griffith found that(A) the protein coat from…

A: Griffith has conducted experiments on mice by injecting live and dead strains of bacteria inside…

Q: For each salt concentration used in this exercise, indicate whether it represents an isotonic,…

A: Tonicity indicates the relative solute concentration dissolved in solution, thereby determining the…

Q: The presence of a capsule around bacterial cells usually indi-cates their increased disease-causing…

A: They are stained using dyes. The dyes can be cationic or anionic. Simple, differential and…

Q: 2. Which of the following temperature best suits the growth and multiplication of transformed cells?…

A: Transformed cells are cells that have been genetically altered to acquire new characteristics or…

Q: Within the light organ, bacteria are protected and nourished, and rapidly increase in number. At…

A: Light organs are crucial organs for the squid. They help to protect and nourish the bacteria and…

Q: 8) In Saccharomyces cerevisiae (yeast), what is the term for the production of asexual cells? a)…

A: Saccharomyces cerevisiae It is a species of yeast also called brewer's yeast or baker's yeast as it…

Q: The average bacterium is approximately __ µm in diameter and a typical Eukaryotic nucleus is…

A: The cell is the structural and functional unit of life.  The first non-living cell from the cork was…

Q: Hana comes from an island town of 2000 people. She goes to the mainland with a friend and there they…

A: Given information  On the island there are 2000 people. Hana returns with a friend from the island…

Q: What are the two points of clinical significance that medical relevant bacterial are able to grow at…

A: Generally,an increase in temperature will increase enzyme activity. But if temperatures get too…

Q: What would you expect to observe if you were able to “transplant” CreS into a rod-shaped bacterium…

A: CreS refers to the protein Crescentin. It is a protein found in bacteria that is similar to the…

Q: Cystic fibrosis usually results in chloride channels that do not work properly. This leads to many…

A: Introduction:-  In normal cells the CFTR gene does the function of moving chloride ion from the…

Q: SIN 1. а. 2. а. b. b. С. С. d. d. е. е.

A: Bacterial colonies refer to a group of bacteria. These are derived from a single mother.

Q: 4) If 20% of a culture of human cells have a DNA content somewhere between 1&2xs (S-phase= 8 hours)…

A: S phase is synthesis phase during which DNA is replicated when the cell is undergoing mitosis.

Q: The cell wall of a gram-positive bacterium is composed of a thick ________ layer. A) protein B)…

A: Gram-positive bacteria, in bacteriology, are bacteria that give a positive response in a stain test…

Q: In terms of the areas of the human body, how does this discrepancy in area differ in type and number…

A: The normal flora refers to the aggregation of microorganisms associated with the body. Microbiology…

Q: Which structure is “slimy” in texture and may protect a prokaryotic cell from destruction by our…

A: Bacteria and archaea are prokaryotic cells having different internal and external features from…

Q: Bacteria use the following mechanism(s) to resist antibiotics:

A: Antibiotic resistance Antibiotic are the class of compounds that inhibits the growth of bacteria or…

Q: (a) Discuss the role of chromosomal islands in microbial diversiIty. (b) State three reasons why…

A: (a) Chromosomal islands are also known as genomic island. They are considered as a genome's part and…

Q: 4.Which of the following terms includes all the others? a) Karyokinesis b) Cytokinesis c) Cell Cycle…

A: The cell is defined as the basic structural and functional unit of an organism. It is the building…

Q: After some time, you found out that you did not like working in microbiology lab, so you found a job…

A: Upon analyzing the park pond water and considering the dogs' illnesses, it's plausible that harmful…

Q: Lysozyme and the antibiotic penicillin have similar mechanisms of action in that they both cause…

A: To find: What do Lysozyme and the antibiotic penicillin cause damage to?

Q: Gram-negative bacteria are generally more resistant to antibiotics than Gram-positive bacteria. What…

A: Gram positive and gram negative bacteria has some structures in common whereas some structure differ…

Q: You and your partner have completed staining of an unknown bacterium. When you look at it in the…

A: GRAM STAINING METHOD:- This is a differential staining that was developed by Dr. Hans Christian Gram…

Q: Some groups of bacteria can go dormant during periods of environmental stress through the formation…

A: Under stressful environments, some single-cell organisms like bacteria undergo a period of dormancy…

Q: 13) What is the purpose of a bacterium's cell wall? A) It provides direct protection from…

A: The bacterial cell wall is made up of a complex and mesh-like structure that is essential for…

Q: The last time we ran a gel, we ran a 1% gel. Why would we choose to run a 3% gel today on the worms

A: percentage of gel varies to see a better separation and resolution

Q: Your right-handed TA has pressed her hands onto agar plates.  There are four plates total--left hand…

A: It is found that female hands consist of a more diverse microbial population than that of a male's…

Q: Your roommate left the deviled eggs out on the counter for 8 hours, but is happily eating them for…

A: Microbiology is the branch of science that deals with the study of microorganisms that are too small…

Q: In the classification of bacteria according to shape, which among the following refer to a chain of…

A: Bacteria They are unicellular prokaryotic group of microorganisms that are both beneficial and…

Q: 3. A division in Eukaryotes that involves nuclear division without a cytokinesis will lead to the…

A: 3. The formation of a syncitium in eukaryotes:In eukaryotic cells, a syncitium is formed when…

Q: What incubation temperature is preferred for the growth of most medically important bacteria?…

A: Various bacteria have different incubation temperatures-hyperthermophile (60 degrees C and upwards)…

Q: Describe each phase of the BACTERIAL GROWTH CURVE (explain what happens, give the cells…

A: Bacteria grow rapidly under a favorable environment where all the necessary conditions for its…

Q: 1.) (a) assuming that a sample of muscle tissue infected with trichina cysts has been sectioned at…

A: Trichina is the common name for Trichinella spiralis  It is a nematodal parasitic creature ,Which…

Q: Penicillin:

A: The small, unicellular, and mostly prokaryotic organisms are called microorganisms. They are of…

Q: Define: a) Normochromic- b) Hypochromic- c) Hyperchromic- d) Microcytic- e) Macrocytic-

A: Blood is a fluid tissue that carry nutrients and oxygen to all parts of the body. Also, they carry…

Q: Which antibiotic affects cell wall synthesis?a)streptomycin b) erythromycin c) tetracycline…

A: Antibiotics are a form of antimicrobial drugs that fight against disease-causing pathogenic…

Q: Which of the following is not true?(a) A single bacterium weighs approximately 1 × 10−11grams.(b) On…

A: Microbes are small organisms that are found throughout the world in both biotic and abiotic sectors.…

Q: 25) Identify the most correct choice: Oa) ribosomes are the membrane bound organelles responsible…

A: Introduction :- Gene therapy is the process of changing the genes in your body's cells in order to…

Q: n 1928, Sir Alexander Fleming was studying Staphylococcus bacteria growing in culture dishes. He…

A: Antibiotics are drugs that fight infections caused by bacteria. They do not work against infections…

Q: 14) A streptobacillus shaped bacteria have the following shape/sructure: a) long chain of…

A: Streptobacilli are a group of bacteria that are characterized by their elongated, rod-shaped cells…

Q: What is the reason why we need to know if the bacteria is encapsulated or not?

A: Bacteria can be found in all sorts of environments, both inside and outside of the body. Some…

Q: (b) E. coli has a protective cell envelope 10 nm thick. What percentage of the total volume of the…

A: Given, E. coli cells are rod-shaped, about 2 mm long and 0.8 μm in diameter Volume of a cylinder is…