Actinomyces are pleomorphic gram positive rods that are facultative anaerobes that require carbon dioxide for optimum growth – most prefer an anaerobic environment, but may grow aerobically. They are the causative agent of what disease?
Q: not
A: SIGNALING- A ligand binds to a cell -surface receptors, the receptors intracellular domain changes i...
Q: How to the levels of CstF in B lymphocytes determine whether antibodies will be membrane- bound or s...
A: Antibodies are produced by this type of white blood cell. B lymphocytes are immune cells that origin...
Q: What are the four basic types of introns? In which organisms are they found?
A: Introns are the sequences that do not code for proteins.
Q: Explain in your own words the "Theory of Use and Disuse" by Jean Baptist Lamarck. Cite an example. P...
A: Jean Baptiste Pierre Antoine de Monet Lamarck (1744- 1829) was a French naturalist, well known for h...
Q: h. chromosomes at prophase II i. chromosomes at metaphase I j. chromosomes at metabolically active s...
A: H- 16 chromosome I- 32 chromosome. J- there are 32 chromosome at metabolically active stage.
Q: Provide a example of a plant that possess only a primary body and another that has both primary and ...
A: In plants; the Primary plant body is chiefky consists of apical meristem;this apical meristem divide...
Q: 7. Why should the microscope be calibrated for each objective and prior to each use? 8. When carryi...
A: A microscope is a scientific tool that is used to study items which are too tiny for the unaided eye...
Q: A bacterium synthesizes DNA at each replication fork at a rate of 1000 nucleotides per second. If th...
A: Introduction :- During DNA replication, the replication fork is a structure that arises within the l...
Q: Steps of bone repair
A: The repairing of bones takes place in four stages: 1. Formation of blood clot 2. Bone production 3. ...
Q: Explain how cephalization, jaw development, and paired limbs guided vertebrate evolution.
A: * Cephalization is the concentration of sense organs and nervous control in anterior part of the bod...
Q: Discuss the different structures (primary, secondary, tertiary, and Quaternary structures) of protei...
A: The simplest level of protein structure is primary structure. It is simply the sequence of amino aci...
Q: What is the purpose of iodine in the gram staining process? Explain.
A: Gram stains are used to distinguish between bacteria with and without cell walls. When the gramme st...
Q: What ion is the major influence on the resting membrane potential? Explain its role.
A: Appropriate communication between neurons that help transmit and receive signals is required for pro...
Q: Describe common signs of extrapyramidal side effects of antipsychotic drugs.
A: Antipsychotics are a type of psychiatric drug used to treat psychosis and are accessible on prescrip...
Q: What are the two basic types of terminators found in bacterial cells? Describe the structure of each...
A: A transcription terminator is a nucleic acid sequence which indicates the termination of a gene or o...
Q: Label the following: Sporophyte Gametophyte Rhizoids
A: Ferns are a type of plant that does not produce flowers. In most cases, ferns reproduce by creating ...
Q: Both DNA and RNA… a)move to different parts of the cell are b)nucleic acids c)are nuclei...
A: There are two key differences between DNA and RNA: (a) Ribose is found in RNA, whereas deoxyribose i...
Q: Why is photoperiod such a widely used time cue?
A: The ability of a plant to re-orient its shoot growth towards a light source is known as phototropism...
Q: Duchenne muscular dystrophy is caused by a mutation in a gene that comprises 2.5 million base pairs ...
A: Eukaryotic cells have a nucleus that is membrane-bound, whereas prokaryotic cells do not. Eukaryotes...
Q: Compare the roles of general transcription factors and transcriptional activator proteins.
A: Transcription is the process of translating info from one stranded DNA molecule to a new molecule of...
Q: What are the two enzymatic functions of reverse transcriptase?
A: Enzymes are biocatalysts that catalyse biochemical reactions or processes by decreasing activation e...
Q: In a typical eukaryotic plasma membrane, _____. A. lipids can move and diffuse through the bilayer B...
A: The plasma membrane, also known as the cell membrane, is a membrane found in all cells that separate...
Q: Describe the composition and properties of normal urine
A: Urine is a metabolic waste product produced by the kidneys and released naturally through urination ...
Q: Woodrats are medium sized rodents with lots of interesting behaviors. You may know of them as packra...
A: Introduction :- Heterozygous means that you have inherited various versions of a gene from each pare...
Q: If the excised cotyledon with Indole-3-acetic acid (IAA) were incubated for a longer period, would y...
A: The plant hormone Auxin is a central regulator of plant growth and development. The IAA, IBA and NAA...
Q: How do you describe your discovery of your sexuality, your sense of being male or female?
A: Sexuality is a vast topic that is also quite personal. It's about comprehending our sexual feelings ...
Q: What is the purpose of the different types of media (solid, semi-solid, broth)?
A: Microbiology is becoming increasingly significant in the current day, it can be used as new ways of ...
Q: This type of adaptive immunity in prokaryotes is built through acquisition and integration of short ...
A: Introduction The adaptive immune system, is a subsystem of the immune system made up of specialized,...
Q: Describe three key amniote adaptations for life on land.
A: The amniotic egg provides protection to the embryo and allow it to develop on land, eliminating a wa...
Q: plese explain how human see colors?
A: There are two types of cells present in the eyes i.e rods and cones.
Q: How would DNA replication be affected in a bacterial cell that is lacking DNA gyrase?
A: A cell is categorised into two broad categories which include prokaryotic and eukaryotic cells. A pr...
Q: Define the concept superinfection. Give an example.
A: Antimicrobial medications are chemical compounds that either naturally or artificially inhibit or de...
Q: What is the mRNA coded by this template DNA strand? DNA Template Strand: 3' ATGGTACGGTCG 5' O5' TACC...
A: Transcription Through the process of transcription, the sequence of DNA gets transformed into the se...
Q: Why is DNA more stable than RNA?
A: DNA contains deoxyribose sugar while RNA contains ribose sugar. DNA have thymine while RNA have urac...
Q: An ecosystem has an average of 50 cm of rain per year. Look at the rainfall g of lower than average ...
A: Biotic factors - Biotic factors are living components or variables that influence an ecosystem or th...
Q: Define about constitutive mutations ?
A: ANSWER;- A constitutive mutant is one in which the gene item is created ceaselessly, that is there a...
Q: Pressure being applied by the cell wall would make the water (more likely/less likely) to want water...
A: Solute potential or ormotic potential is the pressure which is needed to be applied on a solution to...
Q: Okay, maybe GMOs have decent uses but it can't all be good. I've heard all of the following about GM...
A: Genetically Modified Organisms (GMO) are the organisms that has a altered genetic constitution by in...
Q: What bonds form the backbones of DNA molecules? O Bonds between complementary nitrogenous bases O Bo...
A: The self replicating by molecules that are present in chromosomes and carries genetic information ar...
Q: How is biodiversity measured?
A: Introduction: Ecosystems and creatures of all kinds, as well as their interactions and activities, a...
Q: 17. What type of allele interaction is this, the influence of alleles at gene H versus those at gene...
A: Question - What type of allele interaction is this, the influence of alleles at gene H versus those ...
Q: How does application of DNA sequencing help Black (and other) populations in establishing their fami...
A: DNA sequencing is a scientific laboratory technology that is used for the determination of exact seq...
Q: What are the major classes of cellular RNA?
A: DNA and RNA are nucleic acids. DNA codes for cellular activities and RNA carries out the process of ...
Q: Maximal physiological response to an external stimuli typically occurs when ______ of the receptors ...
A:
Q: Describe the application of item (a) to the provided item (b). -(a) sum rule in (b) identifying the ...
A: Sum rule states that the probability of the occurrence of either one or the other of two or more mut...
Q: Because irreversible inhibitors bind to the enzyme you could analyze the enzyme molecule after addin...
A: The following is about enzyme mechanisms and their inhibitions.
Q: How did the following fish groups evolve? a) Agnatha b) Chondrichthyes c) Osteichthyes d) Tetrap...
A: Although numerous fossil fishes have already been discovered and documented, they only represent a s...
Q: What will be the quantitative effects of feedbacks such as the release of methane and carbon dioxide...
A: Permafrost is also known by the name of frozen grounds. Permafrost is described as soil that is pres...
Q: 3) List and define the organizational structure of skeletal muscle beginning with the sacrcomere up ...
A: Skeletal muscles make up the most part of our muscles. They account for around 30 to 40 percent of o...
Q: In eukaryotes, the initial transcript, pre-mRNA, must be modified in three ways before it leaves the...
A: The premature mRNA (pre-mRNA) are produced from the DNA template strand within the nucleus of eukary...
- Actinomyces are pleomorphic gram positive rods that are facultative anaerobes that require carbon dioxide for optimum growth – most prefer an anaerobic environment, but may grow aerobically. They are the causative agent of what disease?
The free-living cells that have the ability to get their food from symbiosis or photosynthesis can be described as bacteria. Some bacteria can cause infection in the living organism’s body and such bacterial infection can be treated with the administration of antibiotics. Bacteria can be classified into two forms based on Gram staining. These forms include Gram negative bacteria and Gram positive bacteria.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Propionibacterium acnes is a normal member of the skin microbiome that benefits the body by lowering the skin's pH- an antimicrobial effect. However, P. acnes is also the leading cause of acne. Explain mechanistically how can a bacterium be normal and beneficial but also be pathogenic?Why does Helicobacter pylori cause ulceractions in the lining of the Stomach? 1)The microbes secrete a toxin that prevents the host from detecting invasion of the microbe and thus allows it to thrive in the stomach and damage the host cells. 2)After invasion of the microbe in the cells lining the stomach, they are no longer able to produce mucous to protect the host cells from acid erosion 3)The microbe produces an enzyme that causes the cell to produce potent digestive enzymes that erode the stomach lining. 4)Once the microbe has entered the stomach, it releases digestive enzymes that degrade the mucous secreting cells.Name two methods of control of growth for Mycobacterium tuberculosis pathogen in a patient with the disease and when confronted with the pathogen outside of the host. Be careful to specify if it is a physical method or a chemical method (check lecture to differentiate these two). Control of growth means how would you deal with an infection related to a person as well as how would you minimize the presence of the bacteria on a surface or object.
- What do Gram positive bacteria generally possess and how will these help them in their virulence?What are the metabolites secreted by the following: 1. Halobacterium salinarum 2. Metallosphaera sedula 3. Lactobacillus acidophilusWhy is Plasmodium species isolated usually in blood? What is the purpose of the thick and thin blood smear? What are the characteristics of a good quality malarial smear?
- A microbiologist identifies a bacterium that is capable of degrading cellulose, lignin, chitin, latex, aromatic chemicals, and keratin. It produces metabolic byproducts that give soil a musty smell as well as some that can be used as antibiotics. Which of the following genera is being described? View Available Hint(s) for Part A Pseudomonas Campylobacter Neisseria StreptomycesWhat type of microorganism is Entamoeba histolyticaGive the distinctive characteristics of the following: Mycobacterium Escherichia Micrococcus
- Why does Balantidium coli have the greatest clinical impact? What and how will you eradicate this parasitic infection? describe your methods for elimination.Propionibacterium acnes is a normal member of the skin microbiome that benefits the body by lowering the skin's pH- an antimicrobial effect. However, P. acnes is also the leading cause of acne. Explain mechanistically how can a bacterium be part of the normal microbiome and beneficial but also be pathogenic?Which of the following is not applicable to Legionella pneumophila, or to the disease it causes, Legionnaire's disease? A) O It causes an atypical form of pneumonia B) OFound in the environment, typically as an intracellular parasite of amoebas C) O lt is a Gram-negative motile rod D) OIt is a foodborne disease E) OIt is an invasive pathogen that can multiply within macrophages