Antibacterial substances or surfactants like soaps, gels, and certain detergents help lower the number of pathogens on skin. They work by reducing surface tension of water and disrupting cell membranes. However, completely eradicating all bacteria from the skin is not advisable as some nonpathogenic bacteria help control the growth of pathogenic ones.
Explanation:The substances that are liquids or gels that help lower the number of pathogens on skin are commonly referred to as antibacterial substances or surfactants. These include soaps, alcohol-based gels, and certain detergents. They operate by lowering the surface tension of water, enabling the mechanical washing away of microbes, and disrupting cell membranes. Every day examples include hand washing with soap and water or using an alcohol-based hand gel.
Aside from surfactants, the body has its own physical and chemical barriers that work against pathogens. The skin, for example, serves as a continuous barrier against potential infections. Further, some of the lipids and fatty acids in sebum (an oily secretion on the skin) can inhibit microbial growth.
It's important to note, however, that completely ridding our skin of bacteria would be harmful. We need nonpathogenic bacteria on our skin to keep pathogenic ones from thriving. So while antibacterial products are useful, they don't and shouldn't eradicate all bacteria.
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Racial segregation and exclusion are most likely to be eliminated in sports when
This element is found in all living things. It is recycled when organisms die. It is transformed from one form to another through photosynthesis and cellular respiration. The element is
Answer:
carbon
Explanation:
__________ is characterized by excessive/constant worry, restlessness, irritability, and disturbed sleep.
What factor does the nurse expect to influence the development of teeth in neonates?
The factors that the nurse expects in the influence of development of teeth in the neonates are the following;
- Medication and illness of neonate
- Fluoride level that is present in the supply water
- The medication or illness that the mother has
Which type of vertebrae are characterized by the presence of transverse foramina?
When you go outside, it is common to hear a variety of bird songs. these songs vary among bird species as well as bird flocks. interestingly, some bird species that are highly unrelated have very similar song qualities. what can you conclude from this phenomenon?
What is the difference between the position of the surface proteins and the membrane -spanning proteins
Sexual reproduction is important for the survival of the species. It is important for ALL BUT ONE of these reasons. That is
Answer:
it is necessary for the survival of the individual.
Explanation:
Sexual reproduction is important to the survival of any species for all the reasons except it is necessary for the survival of the individual. Genetic variability is extremely important to the overall survival of a species, not an individual. It leads to organisms more "fit" to survive in their given environment.
The peripheral nervous system refers to the nervous structures outside of the:
The earliest humanlike creatures that lived in africa three to four million years ago were
While assessing a neonate’s temperature, the nurse observes a drop in the body temperature. what is the most appropriate reason for this temperature drop?
The right answer is decreased nonshivering thermogenesis.
The increase in metabolism allows an increase in the production of heat. Newborns use their brown fat as a source of heat, it is a non shivering thermogenesis.
The second mechanism for increasing heat in humans is increased muscle tone and shivering, but in the newborn there is no chill.
Ll organisms are made of one or more cells, which are the fundamental units of life.
a. True
b. False
What is dna? how do scientists isolate dna in order to study it? how does dna differ from person to person? how can tools of molecular biology be used to compare the dna of two individuals? what are restriction enzymes? what are restriction fragment length polymorphisms? what is gel electrophoresis and how can the results of this technique be interpreted?
DNA is a molecule that carries genetic information and can be isolated by breaking open cells. DNA differs between individuals, and molecular biology tools can be used to compare DNA. Restriction enzymes and gel electrophoresis are used to study DNA fragments.
Explanation:DNA, or deoxyribonucleic acid, is a molecule that carries genetic information in all living organisms. It is composed of nucleotides and has a double helix structure. Scientists isolate DNA by breaking open cells and enzymatically destroying other macromolecules. They use methods like gel electrophoresis to separate and visualize DNA fragments. DNA differs from person to person due to variations in the sequence of nucleotides. Tools of molecular biology, such as PCR and DNA sequencing, can be used to compare the DNA of two individuals.
Restriction enzymes are enzymes that cleave DNA at specific recognition sites. They are used in molecular biology to cut DNA into fragments. Restriction fragment length polymorphisms (RFLPs) are variations between individuals in the length of DNA fragments generated by restriction enzymes. Gel electrophoresis is a technique used to separate DNA fragments based on their size and charge. In gel electrophoresis, DNA fragments are loaded onto an agarose gel and subjected to an electric current. The smaller fragments move faster and travel farther, while the larger fragments move slower and stay closer to the top. The results of gel electrophoresis can be interpreted by visualizing the bands produced and determining the sizes of the DNA fragments.
Which pathway will run if there is a high level of adp?
a. glycolysis
b. gluconeogenesis
c. glyconeogenesis
d. adp kinophosphorylase cycle?
The main function of glycogen is
The loss of the ability of the larynx to produce normal speech sounds is called:
Samuel always receives a painful shock when he turns on the lamp in his study. after a while, samuel refuses to touch the switch on the lamp. the lamp switch was a(n) ________ stimulus that elicited a(n) ________ response after a period of time.
Controlling what enters and leaves the cell in an important function of the
the unequal sharing of electrons results in what
Some antimicrobial chemicals are considered to be disinfectants and antiseptics. some antimicrobial chemicals are considered to be disinfectants and antiseptics.
a. True
b. False
The statement is true. Disinfectants and antiseptics are both types of antimicrobial chemicals. Disinfectants are used for inanimate objects while antiseptics are for living tissues.
Explanation:This statement is indeed true. Both disinfectants and antiseptics are antimicrobial chemicals. Disinfectants are substances that are applied to non-living objects to destroy microorganisms. For example, you might use a disinfectant to clean a bathroom. On the other hand, antiseptics are applied to living tissues to reduce the possibility of infection, sepsis, or putrefaction. For instance, a doctor may use an antiseptic on your skin before making an incision.
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Suppose that the coding region of a gene contains 1,800 base pairs, with 570 in exon 1, 420 in exon 2, and 810 in exon 3 (not counting the stop codon). the protein translated from this gene will consist of _______ amino acids
The protein translated from a gene consists of a number of amino acids equivalent to the number of codons (base pairs divided by three) within the gene. In this case, the protein will consist of 600 amino acids.
Explanation:The protein translated from a gene is determined by a triplet code, meaning every three nucleotide bases (codons) in the gene code for a single amino acid. Therefore, to calculate the number of amino acids, you would need to count the amount of triplet codons, or base pairs divided by three. In this case, the gene contains 1800 base pairs. So, 1800 base pairs divided by 3 equals 600. Hence, ignoring the stop codon, the protein translated from this gene will consist of 600 amino acids.
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Describe the stages of photosynthesis. Use the terms thylakoid, light-dependent reactions and light-independent reactions.
Photosynthesis in plants occurs in two stages. These stages are known as the light-dependent reactions and the Calvin Cycle.
The first stage of photosynthesis is the light dependent reactions. These reactions take place on the thylakoid membrane inside the chloroplast. During this stage light energy is converted to ATP (chemical energy) and NADPH (reducing power).
The second stage of photosynthesis is the Calvin Cycle. These reactions occur in the stroma of the chloroplast. Energy from ATP and electrons from NADPH are used to convert carbon dioxide into glucose and other products.
Photosynthesis comprises of two stages: the light-dependent reactions, which occur in the thylakoid membrane and convert light energy into chemical energy, ATP and NADPH, and the light-independent reactions, or Calvin Cycle, which happen in the stroma and utilise the ATP and NADPH to convert carbon dioxide into sugars.
Explanation:Photosynthesis consists of two stages: the light-dependent reactions and the light-independent reactions, or Calvin cycle. Initially, the light-dependent reactions occur in the thylakoid membrane where light energy is captured by pigments (like chlorophyll) and converted into chemical energy, ATP and NADPH. These reactions also involve the splitting of water molecules and the releasing of oxygen. The energy-carrying molecules ATP and NADPH are then passed on to the second stage of the process.
The light-independent reactions, otherwise known as the Calvin cycle, take place in the chloroplast stroma. Here, ATP and NADPH are used to transform carbon dioxide into sugar (carbohydrates) through a series of complex enzymatic reactions. Although they were named light-independent reactions because they do not use light energy directly, they rely on the ATP and NADPH produced by the light-dependent reactions.
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Uv waves and gamma waves can cause dna mutations that result in various forms of cancers. explain why using the terminology found within the passage. give one example of the damage caused by one of these waves.
Trees use narrow tubes to transport water upward. Which property of water allows the water to rise in these narrow tubes?
High Vapor Pressure
Cohesion Molecules
High Boiling Point
Net Charge of Molecules
Was B: Cohesion Molecules correct?
The ability of a postsynaptic cell to respond to a neurotransmitter depends on:
Certain species of insects introduced accidentally in a forest are destroying all the Douglas fir trees in that forest. The wood of these trees is extensively used for construction. In order to control the damage caused by these insects, the forestry department decided to introduce the moth caterpillar in the forest. These caterpillars are natural predators of the insects. Which method did the forestry department implement to control the invasive species?
The forestry department implemented a(n) _______ control method.
Answer: Biological control method
A biological control method is used to control the growth of unwanted and undesired species of plant and animals in a natural habitat. This includes the induced growth of plants, animals and insects which help to irradicate the growth of undesired plants, animals and insects. Therefore, introduction of invasive species of caterpillar moth will limit the population of insects causing harm to forest woods.
Answer:
biological
control method.
Explanation:
3 ways in which the female pelvis is different from male
How is breathing related to cell respiration? (Hint: Think about both the reactants and the products of cellular respiration)
Answer:
We breathe oxygen that is captured through cellular respiration.
Explanation:
Cellular respiration is the chemical process carried out by living beings and takes place inside cells. It is necessary to maintain the functioning of our body. For cellular respiration to happen efficiently, in addition to the absorption of oxygen (which is essential for our breathing), the body's nutritional needs must be met. That is, living beings need to ingest carbohydrates, lipids and proteins. However, as these molecules are large, the organism needs to break them down so that they can be used as an energy source. After ingestion, simple carbohydrates, such as glucose, fatty acids and amino acids, remain. Cellular respiration takes place at this stage.
Most used by living beings, aerobic respiration uses glucose as its main source of energy. Its function is to start from the molecules, obtained by the producing organisms, in the process of photosynthesis and by consumers' food. Aerobic respiration is represented by the following equation: C6H12O6 + 6 O2 - 6 CO2 + 6 H2O + Energy
In this equation, it is possible to identify that the glucose molecule (C6H12O6) is divided, so that it can originate the simplest substances (CO2 and H2O). This mechanism occurs within the mitochondria, a cytoplasmic organelle that acts as a power plant. With this, several reactions with the participation of enzymes and coezimas are carried out within the aerobic respiration, which favors the constant oxidation of glucose. In this way, this way of obtaining energy generates thirty-six moles of ATP from one mole of glucose. Aerobic respiration is divided into three stages: glycolysis, the Krebs cycle and oxidative phosphorylation (respiratory chain).
Breathing is related to cell respiration as oxygen is used in cellular respiration and carbon dioxide is exhaled during breathing.
Breathing is related to cell respiration in several ways. In cellular respiration, oxygen is used as a reactant to break down glucose and produce ATP, which is the energy currency of cells.
Carbon dioxide is a waste product of this process and is exhaled during breathing.
The respiratory system, which includes the lungs, muscles, and passageways, helps to transport oxygen from the air into the body and remove carbon dioxide.
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In the southern european plains, a species of flower comes in two colors, purple and pink. when pink flowers are most common in a field, bees visit and pollinate the purple flowers more often, and vice versa. this switching of pollinator preference will result in __________.
On reviewing the medical reports of a postpartum patient, the nurse finds that the patient has homans' sign. what does the nurse interpret from this finding?