Blue-green algae, bacteria, and mycoplasma are prokaryotes. Bacteria are the most prevalent and fastest-growing prokaryotes.
What kinds of cells are prokaryotic examples?Unlike prokaryotic cells, eukaryotic cells contain interior cellular bodies. Prokaryotes include different forms of bacteria and archaea. Eukaryotes include protists, fungi, plants, and mammals (everything except prokaryotes).
Prokaryotic cells, where are they?These single-celled organisms are present across the entire planet, from the dirt to human tissue. They differ in their architecture and shapes. The element of the cell wall that gives it structure is called peptiddoglycan. A few of the distinguishing features of bacteria are pili, flagella, and capsules.
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How are genes and DNA related quizlet?
Genes and DNA are related because genes are made up of DNA.
What are Genes?
Genes are segments of DNA that contain instructions for the development and functioning of living organisms. They are found in all organisms and are responsible for the transfer of inherited characteristics from one generation to the next. Genes are responsible for the physical characteristics of a living organism, such as eye color, hair color, and other features. They also determine a person's susceptibility to certain diseases and their response to environmental factors.
Genes are contained within each strand of DNA and are responsible for the transmission of hereditary characteristics from parent to offspring.
What is DNA?
DNA (deoxyribonucleic acid) is a molecule found in the nucleus of cells that contains genetic information. It is a double-stranded molecule made up of nucleotides that forms a spiral ladder-like structure. DNA carries the instructions needed for an organism to grow, develop, and reproduce.
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Aseptic Technique Answer sheet Pre-Laboratory Questions 1. Is sterilization the same as disinfection? Explain your answer. 2. Why is aseptic technique important? 3. What are signs of microbial growth in a liquid medium, such as broth? On a solid medium, such as nutrient agar? Observations Take a picture and insert it in the appropriate section below. For best results, avoid the use of flash. Do not remove the lid of the Petri dish or tube. Tilt the plates or tubes at slight angle: ACTIVITY 2: Aseptic Transfer from Broth Culture to Broth Activity 2, Broth to Broth Transfer, 48 hours incubation
Disinfection is not sporicidal, in contrast to sterilization. Some disinfectants—referred to as chemical sterilants—will kill spores after prolonged exposure times (3–12 hours).
What is Sterilization?There are several types of bacteria that can be helpful or detrimental to us. Pathogens include bacteria, viruses, and other microbes that cause disease.
Healthcare professionals utilize aseptic method to shield patients from dangerous germs and other organisms when performing medical procedures.
Using an aseptic approach involves taking precautions against pathogen contamination. The toughest regulations must be followed in order to reduce the risk of infection. In operating rooms, clinics, outpatient care facilities, and other medical settings, healthcare professionals use aseptic technique.
Therefore, Disinfection is not sporicidal, in contrast to sterilization. Some disinfectants—referred to as chemical sterilants—will kill spores after prolonged exposure times (3–12 hours).
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What is the slope 6x 2y 12?
We must transpose terms to obtain the value of y in order to convert the linear equation 6x2y=12 to slope intercept form. Consequently, the equation is y=3x6 in slope intercept form.
Where can I find the slope formula?When the slope of the line being studied is known, and the provided point is also the y intercept, the slope intercept formula, y = mx + b, is utilized (0, b).
The slope formula's Y value is what?The equation of a straight line is expressed in slope-intercept form as y = mx + b. In the equation y = mx + b, m stands for the line's slope and b for its intercept. The letters x and y, respectively, stand for the line's separation from the x- and y-axes.
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How does fitness levels affect risk of injury?
Military studies have shown that individuals with lower levels of cardiorespiratory endurance or muscular endurance are more likely to be injured and also that improving fitness lowers injury risk.
How does fitness level affect risk of injury?Cardiovascular exercise boosts your overall health and it also helps you stay injury-free during workouts as well as doing everyday things.
Physical fitness reduces your risk for and resilience to accidental injuries, (especially as you get older).
Exercise strengthens the heart and improves circulation. The increased blood flow raise oxygen levels in the body and this helps in lowering the risk of heart diseases such as high cholesterol, coronary artery disease, and heart attack.
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staphyloccocus aureus is an important cause of food poisoning. several gene-encoding exotoxins are associated with s. aureus food poisoning, including sea, an exotoxin encoded by a viral gene. what sort of life cycle must this phage have?
Lysogenic is the life cycle of the phase.
The lysogenic cycle is a stage of viral reproduction during which the DNA of the virus is replicated utilizing the DNA of the host cell. Lysogenic infection occurs when a virus does not produce any proteins but instead copies its DNA or genetic material with the assistance of the host. At that time, the virus' multiplication and continued life are entirely dependent on the machinery of the host cell.
Prokaryotic cells, which primarily comprise bacteria, exhibit the lysogenic cycle most frequently. However, it can happen in eukaryotic cells, which include both animal and plant cells. The lysogenic cell frequently occurs in bacteriophages, which are viruses that infect bacteria.
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The distinguishing characteristics of primates are mainly related to their ______ lifestyle.
Primate distinctive traits mostly revolve around their endearing way of existence.
According to Sean Carroll, the three main characteristics that set members of our own species, Homo sapiens, apart from other primates are our enormous brains, ability to walk on two feet, and tool use.
We have experienced some slightly distinct natural selection forces over that time. Due to these variations, our ancestors acquired bipedalism, a considerably larger brain, and eventually speaking. The volume of the modern human brain is three times greater than that of great apes.
The most notable morphological and physiological differences between humans and chimpanzees are our improved cognitive capacities and a significant rise in the relative size of the human brain.
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a chemical analysis of the plasma membrane or nuclear envelope would indicate the presence of
a. microtubules and microfilaments
b. just proteins
c. just lipids
d. cellulose
e. both proteins and phospholipids
A chemical analysis of the plasma membrane or nuclear envelope indicates the presence of both proteins and phospholipids.
The plasma membrane is the outermost layer of a cell. The plasma membrane is made up of proteins, lipids, and carbohydrates. The membrane consists of three layers, both outer and inner layers are made up of proteins and a lipid layer is embedded between them. The lipid layer consists of cholesterol and phospholipids. The protein layer is made up of structural proteins and transport proteins.
The nuclear membrane covers the nucleus in a eukaryotic cell. Nuclear membrane up of lipid bilayer. It consists of two membranes. The outer membrane is attached to the endoplasmic reticulum but contains a higher number of proteins than the ER. The inner membrane surrounds the nucleoplasm. There are pores on both membranes which allow the transport of nutrients and other products from and to the nucleus.
So, while considering, both plasma membrane and nuclear membrane are made up of proteins and phospholipids.
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Deoxygenated blood entering the alveoli has dissolved oxygen with partial pressure of 40 mmHg, while alveolar air has oxygen present at a partial pressure of 90 mmHg. What will be the partial pressure of dissolved oxygen in blood that leaves the lungs?
A. 40 mmHg
B. 65 mmHg
C. 90 mmHg
D. 100 mmHg
90 mm Hg will be the partial pressure of dissolved oxygen in blood that leaves the lungs.
While there is a pressure gradient (a concentration gradient), oxygen will continue to move from the alveoli into the blood. The arterial blood gas is the primary method for determining the partial pressure of oxygen. This allows for the direct measurement of oxygen partial pressure, carbon dioxide partial pressure, acidity (pH), oxyhemoglobin saturation, and bicarbonate concentration in arterial blood.
A gas's partial pressure is the force it exerts. The sum of the partial pressures in a gas mixture equals the overall pressure. When forecasting gas flow, partial friction is extremely important. Remember that gases in two connected regions tend to equalize their pressure.
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common disorder of the bladder where bacteria infects the lower urinary tract which causes irritation and inflammation. T/F
It is true that Bacterial cystitis is a common disorder of the bladder where bacteria infect the lower urinary tract which causes irritation and inflammation.
UTIs commonly happens when microbes outside the body enter the urinary lot through the urethra and start to duplicate. A type of Escherichia coli (E. coli) bacteria is responsible for the majority of cases of cystitis. However, infections can also be caused by other kinds of bacteria.
After intercourse, women can get bacterial bladder infections. UTIs can occur even in people who do not engage in sexual activity because the female genital area frequently contains bacteria that can cause cystitis.
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Why DNA is best genetic material?
Explanation:
DNA is less reactive chemically and more stable structurally in comparison to RNA. Hence, DNA is a better genetic material.
What is the pattern of human settlement called?
The ekistics, technology of human settlements and it definitely says about the humans formula of living.
Ekistics entails the descriptive observe of all varieties of human settlements and the formula of trendy conclusions geared toward attaining concord among the population of a agreement and their bodily and sociocultural environments.
Geographers observe settlements due to the fact it's far a mirrored image of the connection among human beings and their environment. These styles also are used to assignment destiny agreement development. There are 3 principal agreement styles: nucleated, linear and dispersed.
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How many bacteria are present in the population after 4 hours?
According to the law of exponential growth, bacteria expand in number within a culture. After two hours, there are 125 germs in the culture, and four hours later, there are 350.
How many bacteria are still in the community five hours later?78,686 bacteria After 5 hours, there are 80,686 microorganisms present. 100,000=200e0.02t500=e0.02tln500=0.02tt=ln5000.02≈310.73.
How many bacteria are still present 24 hours later?Every thirty minutes, the bacterium doubles. Two halves of an hour make up one. Thus, a 24-hour period has 48 half-hours. Thus, 248 microorganisms remain in the community after 24 hours. Thus, in 20 minutes, a single bacterium can grow to two. 4 minutes later, and so forth.
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Assuming that no obvious signs of intra-abdominal injury are present, which of the following injuries would MOST likely cause an injury to the liver or spleen to be overlooked?
a. Pelvic fracture
b. Lumbar spine fracture
c. Femur fracture
d. Shoulder fracture
Assuming that no obvious signs of intra abdominal injury are present ,the correct option is b. Lumbar spine fracture.
It's not always the case that abdominal pain has an underlying cause. Constipation, menstrual cramps, digestion issues, overeating, and others may contribute to it ,the indigestion-related gas stretched or pulled muscles.
Any incident that seriously injures the abdomen is referred to as abdominal trauma. As a result of the severity of the trauma, several abdominal organs could be harmed. The majority of abdominal injuries fall into one of two categories: penetrating or blunt.
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having freckles is dominant over not having freckles, and curly hair is dominant over straight hair. one parent is homozygous for freckles and has straight hair. the other parent does not have freckles and has straight hair. what are the possible phenotypes of the offspring? freckles with curly hairfreckles with straight hairno freckles with curly hairno freckles with straight hair
Answer:
freckles with straight hair
no freckles with straight hair
Explanation:
In this scenario, having freckles is dominant over not having freckles, and curly hair is dominant over straight hair. The first parent is homozygous for freckles, meaning that they have two copies of the gene for freckles, and they have straight hair. The second parent does not have freckles and has straight hair.
There are two possible genotypes for the first generation offspring[F1] with respect to freckles: they could inherit one copy of the gene for freckles from each parent (meaning they would be heterozygous for freckles and would have freckles), or they could inherit two copies of the gene for not having freckles [meaning they would be homozygous for not having freckles and would not have freckles].
There are also two possible genotypes for the offspring with respect to hair type: they could inherit one copy of the gene for straight hair and one copy of the gene for curly hair (meaning they would be heterozygous for straight hair), or they could inherit two copies of the gene for straight hair (meaning they would be homozygous for straight hair and would have straight hair).
Given these possible genotypes, there are four possible phenotypes for the F1 offspring: freckles with straight hair, freckles with curly hair, no freckles with straight hair, and no freckles with curly hair. However, since both parents have straight hair, it is not possible for the offspring to have curly hair, so the only possible phenotypes are freckles with straight hair and no freckles with straight hair.
Answer:
freckles with straight hair and no freckles with straight hair.
Explanation:
What is the contribution of the discovery of DNA in the success of science and technology?
Answer:
It is an undeniable fact that the discovery of DNA has positively impacted the world of science, assisting scientists on their quest to learn more about the genetics of various organisms. Such information has been beneficial in understanding epidemiology, ultimately improving our quality of life
Explanation:
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What type of reproduction do snails use?
The majority of snail species are concurrent hermaphrodites. This indicates that both the male and female reproductive systems are present in each snail.
Both male and female reproductive cells are present (they are hermaphrodite). Self-fertilization is a possibility, so they don't actually need to mate with another snail in order to reproduce. In a soggy, underground nest, they lay about 80 white eggs after mating. After mating, female snails lay jelly-like eggs either on plant stems, behind rocks, or in moist soil for freshwater snails or at the top of the water's surface for saltwater snails (land snail). Usually, the eggs hatch in two to four weeks.
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if the brain experiences inflammation, what effect would this potentially have on the blood-brain barrier?
The purpose of the blood–brain barrier is to protect against circulating toxins or pathogens that could cause brain infections.
Make a claim about how the removal of a population of bats from an
ecosystem could impact at least two other populations in that
ecosystem.
Answer: see below
Explanation:
The removal of a population of bats from an ecosystem could have significant impacts on at least two other populations in that ecosystem. For example, if the bats were a key predator of insects, their removal could lead to an increase in the insect population, which could, in turn, have negative effects on plant populations. Alternatively, if the bats were a major pollinator of certain plants, their removal could lead to a decrease in the plant population, which could have knock-on effects on other species that rely on those plants for food or shelter. Overall, the removal of any species from an ecosystem can have complex and unpredictable impacts on the populations of other species.
What motifs are predominant in traditional haiku check?
Time, nature, and change are the most common or predominant motifs in haiku.
A motif is a pattern that occurs repeatedly throughout a story, such as an image, sound, word, or symbol.A Customary Haiku or Japanese Haiku is a type of verse wherein the sonnet is of only three lines. The first line has five syllables, the second has seven, and the third and final line has five syllables once more. Time, nature, and change are the most common or predominant themes in haiku. They allude to these three parts or motifs and are written in the present tense without rhyme.
Haikus are a favorite among poets for their challenge to paint a vivid picture in just a few words. A practice of artistic discipline, the haiku's minimal nature requires poets to pare down to only the essentials—making each word, or even syllable, count.
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What are the 3 codons in mRNA?
The 3 codons in mRNA means that the four nucleotides that are found within the mRNA — A, U, G, and C.
The three of codons within mRNA refers to the four nucleotides that are set up in the mRNA — A, U, G, and C — which could produce a whole of 64 different combinations. Of these 64 codons, 61 codons signify the amino acids, and the left three codons signify the stop signals, which light at the end of protein emulsion process.
A nucleotide is one of the systemic factors, or systemic blocks, of deoxyribonucleic acid and RNA. It generally comprises of a base( one of the four chemicals which are adenine, guanine, thymine, and cytosine) with a reinforcement of sugar and one of phosphoric acid.
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organisms that have their optimum growth ph between 0.0 and 5.5 are called __________.
Organisms that have their optimum growth pH between 0.0 and 5.5 are called fungi.
pH, quantitative measure of the acidity or stipulation of waterless or other liquid results. The term, extensively used in chemistry, biology, and agronomy, translates the values of the attention of the hydrogen ion — which naturally ranges between about 1 and 10 −14 gram- coequals per litre — into figures between 0 and 14.
Fungi are incredibly different, with generally encountered forms including incentive, molds, truffles, and mushrooms. Fungi are eukaryotic,non-vascular,non-motile and heterotrophic organisms. They reproduce by means of spores.
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What structure connects the right and left cerebral hemispheres?
Intermediate mass
Vermis
Septum pellucidum
Corpus callosum
Corpus callosum connects the right and left cerebral hemispheres.
The right and left brain hemispheres are connected by the extensive fibre tract of axons known as the corpus callosum.
White matter fibres that connect the left and right cerebral hemispheres make up the principal commissural region of the brain, known as the corpus callosum.
Your brain's two hemispheres are joined by a substantial network of nerve fibres known as the corpus callosum, which permits communication and signal transmission between the two sides of the brain.
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A non-food source of vitamin K is:â
â
sunlight.
âintestinal bacteria.
âantibiotics.
âtap water.
âdental implants.
Intestinal bacteria produce vitamin K in yet another form. Menaquinone is the term for this kind. Menadione is the name of the synthetic version of vitamin K.
Additionally, a number of studies have indicated that menaquinones, generally known as vitamin K2, may work better than phylloq to activate extra-hepatic vitamin K-dependent proteins. It supports healthy skin and bone metabolism, fosters appropriate brain function, and guards against heart-related illnesses. Additionally, vitamin K2 plays a crucial role in the body's use of calcium to support bone growth and prevent blood vessel calcification. Animal products and canned meals include vitamin K2. Vitamin K1 is also known as uinone.
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Which process is unique to mitosis?
In mitosis, homologous chromosomes behave independently and this is unique to mitosis.
Mitosis is a type of cell division in which one cell divides into two genetically identical cells. Related to the cell cycle, mitosis is the process by which DNA in the nucleus of a cell is divided into two equal sets of chromosomes. Mitosis produces genetically identical cells with the same number of chromosomes. Mitosis is therefore also known as the division of the equation.
Cell division is necessary for the body to grow and for body tissues such as the skin to regenerate regularly. As cells divide, the outer membrane is pushed inward, separating the newly formed cells. The main result of mitosis and cytokinesis is the transfer of the genome from the parent cell to her two daughter cells. The genome consists of a series of chromosomes. It is a densely coiled complex of DNA that contains the genetic information essential for proper cell function.
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Where do proteins bind and regulate genes?
The proteins bind to regions of DNA called regulatory elements which are located near promoters. The promoter is the region of the gene where RNA polymerase binds to initiate transcription of the DNA to mRNA
Proteins can undergo a variety of modifications, such as been chopped up or tagged with chemical groups. These modifications can be regulated and may affect the activity or behavior of the protein. In each cell type, the type and amount of protein is regulated by controlling gene expression. Gene expression is primarily controlled at the level of transcription largely as a result of binding of proteins to specific sites on DNA. Activator proteins bind to regulatory sites on DNA nearby to promoter regions that act as on/off switches. This binding facilitates RNA polymerase activity and transcription of nearby genes. For proteins to successfully bind to one another, one of them acts as a ligand, a molecule that attaches to a target protein and one of them acts as a receptor, the molecule that receives the ligand. Gene regulation is the process of controlling which genes in a cell's DNA are expressed (used to make a functional product such as a protein). Different cells in the multicellular organism may express very different set of genes even though they contain the same DNA. The set of genes expressed in a cell determines the set of proteins and functional RNA's it contains, giving it its unique properties.
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What does this mean DNA → RNA → protein?
DNA → RNA → protein means the term “central dogma.”
The central dogma of the molecular biology is a premise which states that ancestory particulars flows only in the one direction, starting from DNA, to RNA, than to protein, or RNA directly to the protein. In The Central Dogma, we get to know about the valuable places of runner RNA, the transferred RNA and the ribosomal RNA within the protein- structure process.
DNA is the reinforcement of the particulars, which captures the instructions for processing of other large molecules, which are called proteins. These instructions are kept within the cells, and than scattered among the chromosomes. These chromosomes are piled up of the thousands of little corridor of DNA, known as genes.
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What is the most important procedure for preventing the spread of biological contamination?
Answer:
hand hygiene
Explanation:
washing surfaces with disinfectant kills bacteria and fungi
washing with soap removes substances which traps pathogens as well as pathogens themselves from the skin.
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An organism discovered during a recent underwater expedition to the great barrier reef in australia is multicellular, has chloroplasts, and is made up of eukaryotic cells. in which domain would this organism placed? responses
a. eukarya
b. animalia
c. archaea
d. bacteria
Answer: The organism would be in the domain Eukarya. There are three biological domains namely Bacteria, Archaea and Eukarya.
Explanation: I took the K12 quiz
What are the 4 steps of Calvin cycle?
The Calvin cycle has three basic phases carbon fixation, reduction, and regeneration.
In carbon fixation, two to three molecules of carbon phosphoglycerate are produced when CO2 binds to RuBP. The chloroplast stroma contains the enzyme ribulose bisphosphate carboxylase/oxygenase.
In reduction, 3-PGA molecules are transformed into glucose molecules, which are sugar molecules. Energy for this stage is provided by ATP and NADPH generated during the light-dependent activities of photosynthesis.
In regeneration, third phase requires ATP. At this stage, a portion of the G3P molecules are used to produce glucose, while the remainder are recycled to replenish the RuBP acceptor.
Hence, the calvin cycles provide energy as well as substrate.
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Can monggo grow without soil?
Answer:Mango plant can only be propagated sexually through seeds and asexually through grafting, budding or inarching. It is not possible to get anew mango tree by planting a stem of a mango tree on the ground.
Explanation: