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A: The gram+ and gram - are the two types of bacteria that are differentiated based on the gram…
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A: Rudolf Virchow had ideas that opposed the germ theory of disease proposed by Robert Koch and Louis…
Q: . In what ways are bacteria and archaea essential to eukaryotic life?
A: Microorganisms are broadly grouped into Bacteria, viruses, algae, fungi, and protozoa.…
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A: Streptococcus pneumoniae is a Gram-positive bacterium that is responsible for the majority of…
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A: Phage is defined as a virus that infects bacteria and replicates within it using the host cellular…
Q: What is ENDOSYMBIOTIC THEORY
A: All living things are made up of cells which are of two basic types: prokaryotes or eukaryotes.…
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A: Fungicides are the chemicals that kill fungi. Antibiotics are the chemicals produced from one…
Q: Which antibiotic can help differentiate between Staphylococcus species? a Cephalosporin b…
A: Pls refer below for solution :
Q: Which of these statements is true? a. An antibiotic is any substance produced by a organism that is…
A: Prokaryotes are the primitive organisms that were the first to develop and harness life on Earth.…
Q: According to the endosymbiotic theory, why was it adaptive for the larger (host) cell to keep the…
A: We do not know when the first living creature was established. We totally based on the evolutionary…
Q: C. In 1928, Sir Alexander Fleming was studying Staphylococcus bacteria growing in culture dishes. He…
A: Scientific method involves a series of step by step procedures to solve a particular scientific…
Q: What does the Endosymbiotic theory say?
A: Endosymbiotic theory or symbiogenesis is an evolutionary theory of the origin of eukaryotic cells…
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A: In the living world, we see a large number of microorganisms, animals and plants. These organisms…
Q: What is the endosymbiotic hypothesis?
A: The endosymbiotic hypothesis was first presented as an idea in 1905 by the Russian botanist…
Q: Who were Robert Koch and Louis Pasteur?
A: Heinrich Hermann Robert Koch was born on December 11, 1843. He was a German physician and…
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A: Chromosomes are DNA-protein hereditary structures. Chromosomes are formed by condensation of…
Q: Why is it important to know about bacteria
A: Bacteria are the microscopic organism who have single cell. It is made up of prokaryotic in nature.
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A: There are some living organisms that cannot be observed by the naked eye and only can be seen under…
Q: Which statement best describes why antifungal treatments may have side effects to our own cells? A.…
A: Introduction A pharmaceutical fungicide or fungistatic, often known as an antifungal drug, is a…
Q: Who proposed Endosymbiotic theory?
A: The cells are the basic building blocks of the living system. It consists of many internal…
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A: To function effectively, the healthcare system requires proper and consistent inputs. It involves…
Q: Give two examples of gram positive bacteria?
A: Gram staining is a technique that is used to differentiate between bacteria based on their different…
Q: How might a bacteriophage be used to treat a bacterial infection? – this question relates to…
A: INTRODUCTION Viruses are obligate parasites that live inside the host cells. The structure of…
Q: What is an antibiotic? 1.An organism that inhibits the growth of other organisms 2.A synthetic…
A: Antibiotics are antibiotics that are used to treat infections caused by bacteria in humans and…
Q: Viruses are considered nonliving because Select one: A. They do not locomote. B. They can…
A: Viruses are infectious particles composed of a genetic material either DNA or RNA that is enclosed…
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A: COVID-19 is a strain of corona virus. In Covid-19 the name was taken from- Co- corona Vi- virus D-…
Q: Why does the genus Streptomyces of the Actinobacteria clade secrete chemicals (antibiotics) that can…
A: Streptomyces is the largest genus of the Actinomycetota and the type genus of the family…
Q: What is the endosymbiotic theory? Discuss two lines of evidence that support the theory.
A: The endosymbiotic theory states that a number of the organelles in being cells were once prokaryotic…
Q: Why are prokaryotes so abundant and have such high diversity?
A: The reasons behind Prokaryotic abundance are listed below. Prokaryotes have been living on Earth…
Q: What type of bacteriophages are most common in the oceans?
A: The bacteria and Archaea are infected by viruses known phage formally called bacteriophage. T4, T5,…
Q: The biological species concept cannot be applied to bacteria because Select one: a. they are…
A: Biological species concept considers species as a group of organisms that are similar to each other…
Q: Why do you think it is much more difficult to classify microbial species than plants or animals?
A: Introduction A microbe, or microorganism, is a microscopic organism. It may occur as a single-celled…
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A: Viruses are microscopic biological agents that attack living hosts and infect their bodies by…
Q: What structures would aid bacteria in causing diseases? List several
A: Bacteria that cause disease or infections are called pathogenic bacteria and infection is caused…
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A: Antonie Van Leeuwenhoek made single lens microscope on which he did his first observations of…
Q: How many species of Bacteria and Archaea have been named?How many likely exist?
A: Microorganisms are the microscopic organisms that cannot be seen through the naked eye.…
Q: Which of the following are ordered correctly from LARGEST to SMALLEST? a. virus, yeast cell,…
A: Introduction Prokaryotic cells do not have a nucleus. Cells with a nucleus are considered to be…
Q: They have no nucleus and are the most numerous organisms on Earth (2pts) Question 48 - They have no…
A: The cell is known to be a fundamental unit of life that aggregate to form tissues, organ, and the…
Q: Koch's Postulate proved that: normal flora are necessary for life some diseases are…
A: Answer of the question given below.
Q: What statement describes the danger of using heavy metals to control microbe growth? Group of answer…
A: Heavy metals kill microbes by binding to proteins, thus inhibiting enzymatic activity.
Q: Why do you think there are limited scientists like microbiologists that focuses in studying…
A: Archae are group of single celled prokaryotic microorganisms and are separate from bacteria.
Q: Why is the Kingdom Eubacteria is one of the most successful organisms?
A: Eubacteria are single celled complex micro organisms found everywhere in this world. The kingdom…
Q: What is the economic importance of archaebacteria?
A: Archaebacteria are a group of primitive prokaryotes and are characterized by the absence of…
Q: What led blologists to assign universally accepted names to organisms?
A: -Need of naming the organism - Scientific names are used to describe varied species of organisms in…
Q: Why are viruses not considered to be alive?
A: Every species or organism have certain characteristics which classify them as living or non - living
Q: What does the endosymbiotic hypothesis propose?
A: There are 2 hypotheses regarding the origin of the organelle. These 2 hypotheses are autogenous and…
Q: Which of the following characteristics, structures,or processes is common to both bacteria…
A: Viruses are composed of proteins and nucleic acid. They have their genetic material encapsulated…
Drugs that target ergosterols or glucans are for treatment of infections from organisms representing which Kingdom?
Question 9 options:
a)
virus
b)
c)
bacteria
d)
animal
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- An antiviral drug that is a guianine analog would have an antiviral mode of action that: a) blocks penetration b) blocks DNA replication c) inhibits peptidoglycan cross linking d) blocks maturation e) bonds to ergosterol in the cell membraneGrisofulvin is an antifungal agent that affects: select the correct answer. a) the chitin cell wall structure b) ergosterol in the cell membrane c) the formation of the mitotic spindle in mitosis d) the 50s ribosomal subunit and thus protein synthesis e) mRNA synthesis7) One of the following antibiotics doesn’t work through the same class of molecules as the rest: a) Levofloxacin b) Rifampin c) Moxifloxacin d) Daptomycin e) Ciprofloxacin 8) In the formula [d=0.5 / n sin , d stands for: a) distance between 2 points b) distance from the slide to the objective c) Focal distance of the objective lens d) Focal distance of the ocular lens e) none of the above9) In the formula [d=0.5 / n sin , stands for: a) angle of reflection b) angle of refraction c) angle of incidence d) angle of inclination e) angle of perception10) In the formula [d=0.5 / n sin , stands for: a) angle of incidence b) speed of the illuminative source/light c) Nature of illuminative source/light d) wavelength illuminative source/light e) temperature of illuminative source/light
- Question 8 Which of the following microbes is the most common cause of pharyngitis? Question 8 options: a) Staphylococcus aureus b) Streptococcus pyogenes c) Escherichia coli d) RhinovirusTay-Sachs disease is result from a)malfunction of cerebroside metabolism b)the accumulation of GM2 c) a defiency of GM2 d) defective lysosomesBoth ethanol and trimethyldodecylammonium chloride are active ingredients in cleaning products used to disinfect. Both will inactivate coronaviruses by a similar mechanism of action. Describe that mechanism of action and why both chemicals are able to cause it. (Reminder: coronaviruses are "lipid envelope" viruses.) Consider the physical properties of these compounds to answer the following question: why might you choose to use a cleaning product with one of these active ingredients over the other?
- forskolin is a drug used by scientists to render adenylyl cyclase (AC) constitutively (always) active. What will this do to: a) PKA levels? b) IP3 levels? O a) increase PKA b) no effect on IP3 O a) no effect on PKA b) increase IP3 O a) no effect on PKA b) no effect on IP3 O a) increase PKA b) increase IP3Which statement among A-D is false regarding bacterial toxins? A) O Hemolysıns are cell membrane disrupters that can rupture red blood cells. B) O Second mesengar pathway disrupters like cholera toxin produces a debilitating respiratory condition of the lungs. C) O Shiga toxin, tetanus toxin, and hemolysins are all types of exotoxins. D) O Superantigens elicit a hyperactive response by the immune system and can lead to shock. E) O None are false, A-D are all true statements.1.Most human bacterial pathogens are labeled as __ according to their temperature requirement: a) Aerophiles b) Aerobes c) Anaerobes d) Psychrophiles e) Mesophiles.2) The current model that describes the contents of the plasma membrane is best described as _______ model: a) Sandwich b) fluid-mosaic c) unit membrane d) ions and pumps e) semipermeable3) Bacterial cells that do not have the SOD & catalase enzymes are labeled as: a) Aerophiles b) Aerobes c) Anaerobes d) Complex e) Mesophiles.