Many antibiotics kill bacteria because they hinder translation by prokaryotic ribosomes.
What are ribosomes?An intercellular structure made of both RNA and protein, and it is the site of protein synthesis in the cell is said to be ribosomes.
The ribosome reads the messenger RNA (mRNA) sequence and translates that genetic code into a specified string of amino acids, which grow into long chains that fold to form proteins.
Ribosomes was present both in plants cells and animal cells.
Some ribosomes, which are the protein manufacturing organelles in the cell, are suspended in the cytosol of a cell, whereas other ribosomes are attached to the outside of the nucleus. Many antibiotics kill bacteria because they hinder translation by prokaryotic ribosomes.
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The muscular layer of the uterus that is the functional unit in pregnancy and labor is the:_____.
The muscular layer of the uterus that is the functional unit in pregnancy and labor is the Myometrium.
What are the three layers of uterus?The uterus is situated posterior to the rectum and anterior to the urine bladder. The body, cervix, and fundus are the three sections that make up the uterus.There are three tissue layers in the uterus, and they are as follows:The inner lining, or endometrium, is made up of the functional (superficial) and basal endometrium. Hormones related to reproduction affect the functional layer. Menstrual bleeding happens as a result of this layer shedding. The development of adhesions and fibrosis may follow injury to the basal endometrium (Asherman syndrome).The muscular layer, or myometrium, is made up of smooth muscle cells.The thin, epithelial-cell-based outer layer is known as the serosa or perimetrium.Learn more about the Parts of uterus with the help of the given link:
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A thick waxy layer of what substance in the cell wall constitutes the major portion of the mycobacterial cell wall, separating it from other microorganisms?
Answer:
A thick waxy layer of in (Mycolic acids (lipoidal) the cell wall constitutes the major portion of the mycobacterial cell wall, separating it from other microorganisms.
Special long chains of fatty acids known as mycolic acids are present inside the lipid-rich cell walls of most mycobacteria, such as the tubercle bacillus (TB) mycobacterium. Enzymes responsible for the production of mycolic acids are crucial for survival and virulence, making them interesting targets for therapeutic development. Species of most of the mycobacteria genus, which includes the pathogens that cause leprosy and TB, depend on them to survive. The organisms develop slowly and are more immune to different chemicals and lysosomal constituents of phagocytes than that of most bacteria because mycolic acids as well as other glycolipids prevent the entrance of chemicals.
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What is the name of all the cell contents between the nucleus and the cell membrane.
Cytoplasm is present between the nucleus and the cell membrane.
What seperates the cell contents or cytoplasm from the extracellular fluid ?The plasma membrane seperates the inner environment of a cell from the extracellular fluid. It is composed of a fluid phospholipid bilayer.
Cytoplasm ,the semifluid substance of a cell that is external to the nuclear membrane and internal to the cellular membrane, sometimes described as the non nuclear content of protoplasm. In eukaryotes ,the cytoplasm contains all of the organelles.
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Genes serve as a template and are transcribed into ______, a temporary message that can travel out of the nucleus. multiple choice question. rna chromosomes cells dna
Genes serve as a template and are transcribed into RNA, a temporary message that can travel out of the nucleus.
What is RNA ?All living cells contain ribonucleic acid (abbreviated RNA), a nucleic acid with properties comparable to those of DNA. However, RNA is often single-stranded, unlike DNA. Instead of the deoxyribose present in DNA, the backbone of an RNA molecule is made up of alternating phosphate groups and the sugar ribose.
RNA transmits genetic information that ribosomes interpret into a variety of proteins required for biological functions. The three primary RNA subtypes involved in protein synthesis are mRNA, rRNA, and tRNA. RNA is also used by viruses as their main genetic component.Learn more about RNA here:
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Following administration of nitroglycerin to a man with crushing chest pressure, he experiences a significant increase in his heart rate. this is most likely the result of?
Answer:
Following administration of nitroglycerin to a man with crushing chest pressure, he experiences a significant increase in his heart rate. this is most likely the result of angina.
Patients who have a systolic pressure of higher than 100 mm Hg and the recommended, unexpired medication should be given nitroglycerin. In the pre-hospital scenario, a patient should only get three (3) nitroglycerin pills or sprays. Regardless of whether the drug is otherwise appropriate for the situation of the patient, it is not a good idea to give a patient an outdated prescription. A sublingual tablet is available for oral administration of nitroglycerin. The pills are often taken as required, either five to ten minutes before performing tasks that might trigger angina episodes or as soon as an attack begins. The oral route is used in part to prevent medication breakdown. Sublingual absorption can, in general, be more effective for some medications than intestinal uptake.
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The brain's right hemisphere is best described as _____ the left hemisphere's processing.
The brain's right hemisphere is best described as complementing the left hemisphere's processing.
What does the right hemisphere of the brain control?The right side of the brain significantly controls the left side of the body and the left side of the brain generally regulates the right side of the body. Due to this, the damage to one side of the brain is going to influence the opposite side of your body.
The two hemispheres of the brain are known as the left hemisphere and the right hemisphere. Both of them are connected with the help of a thick band of nerve fibers called the corpus callosum.
Both regions of the brain are capable to communicate with each other through this bridge. It also regulates the complementing process between the two hemispheres of the brain.
Therefore, the brain's right hemisphere is best described as complementing the left hemisphere's processing.
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____are live microorganisms, such as lactobacilli found in yogurt, that when consumed in sufficient amounts, colonize the large intestine and provide health benefits.
Probiotics are live microorganisms, such as lactobacilli found in yogurt, that when consumed in sufficient amounts, colonize the large intestine and provide health benefits.
Although microorganisms are considered to be harmful to the body, but there are numerous kinds of microorganisms that are beneficial to the body and are required by the body. Probiotics are an example of such kinds of microorganisms.
Probiotics can be described as live microorganisms which provide various health benefits to the body. The probiotics help in making the gut flora healthy.
Lactobacilli is a common probiotic that is found in foods such as yogurt. This kind of bacteria helps in the digestion of lactose and also can improve conditions such as diarrhea. Hence, probiotics should be included in the diet in order to keep your gut flora healthy.
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Which clinical manifestation, when found in newborns, may indicate the presence of cystic fibrosis?
Meconium ileus, in newborns, may indicate the presence of cystic fibrosis
Cystic fibrosis is a genetic disorder mainly associated with cells capable of producing mucus. These cells are found in sweat glands, digestive system and lungs belonging to respiratory system. Thus, the abnormality in mucus production, in sticky and thick nature, disrupts the normal functioning of human body. They block the ducts and tubes, which can result in life threatening condition.
The mutation responsible for cystic fibrosis occurs in the gene CFTR, which is abbreviated form of Cystic fibrosis trans membrane conductance regulator. The primary function of gene is to regulate the exchange of fluids and salts present in the cells.
Meconium ileus refers to the inability of bowel movement in the newborn. This occurs due to thick and sticky mucus, which is indicative of cystic fibrosis, as discussed above.
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Which level of protein structure do the α-helix and the β-pleated sheet represent?.
The α-helix and the β-pleated sheet represent represent secondary structure of protein.
Secondary structure is another way of classifying protein structure. The term “secondary structure” describes the regular, local structure of the protein backbone stabilized by hydrogen bonding of amide groups that occur both inside and outside the individual molecules. Alpha helix, Beta strands are another typical secondary structure. A polypeptide chain that is 3 to 10 amino acids long and has an almost fully extended backbone is called a β-strand (also known as a strand). A beta sheet consists of two or more consecutive parallel or antiparallel polypeptide chains stabilized by hydrogen bonds.Therefore, the correct answer is secondary structure.
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Produced in the nucleus, this molecule specifies the exact sequence of amino acids of the protein to be made. group of answer choices
a. synthetase enzymes
b. transfer rna
c. ribosomal rna
d. messenger rna
e. atp
The exact sequence of amino acids of the protein to be made messenger RNA option (d) is correct.
What is an amino acid?Proteins are made of substances named amino acids. Antibodies and amino acid sequences are the elements of living.
The messenger RNA functions as a copy of chromosomal DNA and dictates the sequence of amino acids in proteins.
Produced in the nucleus, this molecule specifies the exact sequence of amino acids.
Thus, the exact sequence of amino acids of the protein to be made messenger RNA option (d) is correct.
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Glossopteris, a fossil found in africa, australia, india, south america, and antarctica, is significant because ________.
Glossopteris, a fossil found in africa, australia, india, south america, and antarctica, is significant because it demonstrated that all of the continents where the fossil is found must have been cold when the organism was alive.
This become a amazing continent that covered areas regarded nowadays as Africa, Antarctica, Australia, India and South America. The presence of Glossopteris become used as assisting proof for the progressive idea of “continental drift” at some stage in the mid twentieth century.
Glossopteris fossils offer essential proof for presently widespread distribution of continental plates withinside the Permian length that ended 250 million years ago. Fossils were discovered in areas as remote as Patagonia, India and southern Australia.
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When performing a ____________________ and the f2 generations yield significantly different results, it is likely that the trait is sex linked.
When performing a reciprocal cross and the F2 generations yield significantly different results, it is likely that the trait is sex-linked.
Reciprocal cross is the one where the genotype of the male and the female parent are interchanged. This cross is performed to check for the importance of genotype of parents on an inheritance pattern. The genotype must be homozygous for this cross to be conducted.
Sex-linked refers to the genes affecting any certain trait that are expressed on the sex chromosome. In humans, these kind of genes are mostly present on the X-chromosome. The expression of such genes depends upon the genotype of the parents completely.
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The descriptions of orgasm written by men and women are ________, and pet scans indicate that ________ subcortical brain regions are active in men and women during orgasm.
The descriptions of orgasm written by men and women are similar, and pet scans indicate that the same subcortical brain regions are active in men and women during orgasm.
Orgasm is a sudden feeling of intense pleasure which causes increase in pulse rate, blood pressure, heart beat and spasm of the pelvic muscle.
This spams of the pelvic muscle causes contraction of the lower vagina in women and contraction and ejaculation in the urethra of the men.
There is an increase in the amount of dopamine released by the brain during orgasm. Pet scans have revealed that same subcortical regions in the brain are activated during orgasm in both men and women.
It is seen the amygdala part of the brain is deactivated during orgasm which is associated with fear and anxiety.
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What are the monomers that
make up DNA?
A. amino acids
B. nucleotides
C. polypeptides
Answer:
I think it is B, nucleotides
Which lung value remained relatviely unchanged when comparing a patient with an acute asthma attack, acute asthma attack with inhaler, and normal?
IRV (inspiratory reserve volume)
IRV (inspiratory reserve volume) lung value remained relatively unchanged when comparing a patient with an acute asthma attack, acute asthma attack with inhaler, and normal.
What is IRV?The amount of air that can be forcibly inhaled following a normal tidal volume is known as the inspiratory reserve volume (IRV). Deep breathing necessitates the utilization of IRV, which is typically maintained in reserve. 1900-3300 ml is the typical adult value.What brings to severe asthma attacks?Exposure to an allergen, such as dust mites, cockroaches, grass or weed pollen, or animal dander, can cause an asthma attack. Other frequent triggers are strong aromas like perfume and irritants in the air like smoke or chemical fumes.How does inspiratory reserve volume work?The extra volume of air that can be exhaled following a typical exhalation is known as the expiratory reserve volume (ERV). It is the amount held in reserve that may be exhaled in excess of what is typical. In contrast, the additional volume of air that can be inhaled after a typical inhalation is known as the inspiratory reserve volume (IRV).To learn more about inspiratory reserve volume visit:
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The term used to describe the process in which foods are broken down into their component molecules is?
Answer:
Chemical digestion
Explanation:
This process is known as chemical digestion, where water and digestive enzymes are used to break down the molecules.
which of these is a neural change that continues throughout life? plasticity action potential axon all-or-none response
A neural change that continues throughout life it is also known as Neural plasticity or neuroplasticity.
Neural plasticity is defined as the ability of the nervous system to change its activities in response to experience. ‘Neuro’ means neurons that are specialized cells which are used for the transmission of nerve impulses; ‘Plasticity’ means being easily shaped or moulded.
Plasticity is a neural change that continues throughout life. It is used to change or rewire the neuronal mapping of the brain. Neuroplasticity helps your brain to adapt the ability of learning about new things. It helps to boost or enhance brain's activity.
There are two types of brain plasticity.
* Structural Plasticity = It is used to change the physical structure of brain
*Functional Plasticity= It is used to takes up a new function in place of a damaged area of the brain
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The golgi complex packages cellular products that will be exported from the cell into which structures?.
Golgi complex packages cellular products into which secretory vesicles will be exported outside the cell.
The Golgi bodies are cell organelles. It comprises bundles of folded flattened membranous sacs. It's found in all the cells. The number of Golgi bodies is higher in the cells that participate in the synthesis and transporting of proteins. When proteins move to the Golgi apparatus from the endoplasmic reticulum. They are packed into secretory vesicles. These secretory vesicles are membranous bound. After packing, these vesicles are stored. Whenever secretory vesicles are required then they move towards plasma member. Furthermore, fuse with it. By exocytosis, the contents present inside the cell leave the cell. An example of a secretory vesicle is lysosomes. It contains membranous walls that are formed by the Golgi apparatus.
Therefore, the Golgi complex packages cellular products into which secretory vesicles will be exported outside the cell.
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In meiosis, how does prophase i differ from prophase ii (choose all that apply)?
One diploid cell is present during prophase I, while two haploid cells are present during prophase II.
Describe haploid:Haplotype refers to a cell having just one pair of chromosomes. Haplotype is another word for the number of chromosomes present in sperm or egg cells, which are frequently referred to as gametes. Each of the 23 chromosomes in human haploid cells, which make up gametes, is one of a pair that is present in diploid cells.
What is an example of a haploid?Haplotype cells include, for example, gametes (male or female germ cells). Diploid cells include those found in blood, skin, and muscle.
How is haploid generated?When a parent cell divides twice, four haploid daughter cells with just half of the original genetic material are created instead of two diploid daughter cells with the entire set of genetic material on the first division.
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An individual who studies the scientific links between biological and psychological processes is known as a _______.
Those that investigate the scientific relationships between biological and psychological processes are referred to as:
biological psychologist
The investigation of the rational relationships between biological and psychological processes is known as biological psychology.
Biological psychology is the study of the interaction between biological and psychological functioning. The brain and spinal cord are the decision-making organs of the central nervous system (CNS).
Examine how the human body and its organs are made and function. This is something that both psychology and the biological sciences do. Psychology examines behavior. The relationship between a person's body and conduct is very strong. Skeletal muscle contractions or glandular secretions follow the physiological level of all sorts of activity, including sensations, perceptions, and actions.
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The fluid-mosaic model is ultimately the best depiction of the cell membrane because:________
The fluid-mosaic model eventually provides the most accurate representation of the cell membrane since it demonstrates that the layers' phospholipids and proteins can migrate.
What does "fluid mosaic model" mean?According to the fluid mosaic theory, phospholipids, cholesterol, and proteins are only a few of the components that are constantly flowing through the cell membrane.
This movement helps the cell membrane maintain its role as a barrier dividing the inner and external environments of the cell.
Who provided a model of a fluid mosaic?Singer and Nicolson proposed the fluid mosaic theory in the early 1970s. This paradigm states that lipids, proteins, and carbohydrates make up membranes.
The fluid mosaic model is mosaic because of what?According to the fluid mosaic concept, the plasma membrane is made up of a variety of elements, including phospholipids, cholesterol, proteins, and carbohydrates, which give the membrane its fluid appearance.
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The molecular clock has limited usefulness for estimating divergence times among species in part due to the saturation of dna sequences. This occurs because.
Answer:
The molecular clock has limited usefulness for estimating divergence times among species in part due to the saturation of DNA sequences. This occurs because In highly diverged lineages, the substitutions process will occur at sites that have been substituted previously.
Explanation:
The mutation rate is used by the molecular clock to shorten the ancient period during which living forms separated. Both amino acid sequences plus DNA's nucleotide sequences are used by the molecular clock.
Only the percentage of mutations as well as other modifications over a predetermined period of time are recorded by this clock. Frequently, a property's usefulness may be restricted by the lineages' extreme diversity. The researchers come to the conclusion that molecular clocks are significantly so "erratic" comparatively previously believed, making them essentially worthless for maintaining precise evolutionary time. They blame natural selection's biases, which can occasionally prevent particular genetic mutations in particular lineages.
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For a monohybrid cross, suppose two true-breeding parents are crossed and their offspring (f1) are self-crossed. what genotypic and phenotypic ratios do you expect to observe in the f2 generation?
1:2:1 genotypic and 3:1 phenotypic
1:2:1 genotypic and 3:1 phenotypic are the genotypic and phenotypic ratios do you expect to observe in the f2 generation.
What is meant by genotypic ratio?The ratio that represents the various genotypes of a test cross' offspring is called the genotypic ratio. It depicts the distribution of children in accordance with genotype, the genetic makeup that determines an organism's phenotype.What is phenotypic ratio?A phenotypic ratio is a numerical comparison of two phenotypes that demonstrates how frequently the occurrence of one trait corresponds with another. The phenotypic ratio produced from a test cross is used by researchers to determine the gene expression for generations of an organism.A monohybrid cross is what?A monohybrid cross is made up of two homozygous individuals that have the opposing phenotype for a particular genetic characteristic. "A monohybrid cross is a cross between two monohybrid characteristics (TT and tt)." The monohybrid cross is in charge of passing one gene on.To learn more about monohybrid cross visit:
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What are the functions of the stratum corneum layer of the skin? select all that apply.
The function of stratum corneum prevent unwanted materials from entering and excessive loss of water from existing the body.
What happens when the stratum corneum is damage?Damage of stratum corneum lead to multiply skin impairment including increase transepidermal water loss , redness,and susceptibility to infection or irritation by external factors.
The function of corneum stratum to form a barrier to protect underlying tissue from infection, dehydration chemicals and mechanical stress.
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Metal blocks A and B both have the same mass. It requires 50 J to heat block A from 20°C to 45°C, whereas it requires 80 J to heat block B from 20°C to 45°C. Which has a greater specific heat?
Answer: Block B
Explanation: If it takes more Joules of energy to heat block B from one same temperature to another, and both blocks are the same mass, then block B has a higher specific heat
Which two substances are most useful for determining a patient's glomerular filtration rate? group of answer choices
Insulin and Creatinine are the two substances are most useful for determining a patient's glomerular filtration rate
A straightforward blood test that evaluates your creatinine levels is the typical method for estimating GFR. The regular breakdown of muscle tissue and the digestion of food protein both produce creatinine, a waste product.
What is Glomerular filtration rate ?A test called the glomerular filtration rate (GFR) measures how efficiently the kidneys are functioning. In particular, it calculates the volume of blood that flows through the glomeruli each minute. The kidneys' globuli are microscopic filters that remove waste from the blood.
Glomerular filtration is caused by the force of the differential between hydrostatic and osmotic pressure (but the glomerular filtration rate involves other variables as well) (though the glomerular filtration rate includes other variables as well).Learn more about Glomerular filtration rate here:
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explain how polar molecules can dissolve other polar molecules
Answer:
Explanation:
In a polar solvent, the molecules of solvent are attracted to each other by the partial charges on the ends of the molecules. When a polar solute is added, the positive polar ends of the solute molecules attract the negative polar ends of the solvent molecules and vice versa.
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Frogs and humans are more distantly related than are lizards and humans.
a. true
b. false
It is true frogs and human are more distantly related than are lizards and human. The biological system made up of all the anatomical organs involved in sexual reproduction is known as an organism's reproductive system, also referred to as the genital system.
What are the similarities between frog and human reproductive systems ?
The biological system made up of all the anatomical organs involved in sexual reproduction is known as an organism's reproductive system, also referred to as the genital system. Numerous inanimate materials, including fluids, hormones, and pheromones, are crucial reproductive system add-ons.
Reproductive system of frog is responsible for producing gametes which are released in water for fertilizations. Similarities between human and frog's system are limited to that both possess paired testes or ovaries for production of gamete.
It is true that they are distantly related to each other , when genes in frogs have very similar neighboring genes as humans about 90 percent of the time.
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Which of the following is not cause by human interaction with the earth system
Answer:
Answer: C. mountain building
Air pollution, water pollution and deforestation are caused by human interaction with the earth system. Air, water and forests are abiotic (non-living) factors of the environment on which human population is dependent upon. Release of pollutants in the air and water due to human activities causes pollution. Forests are removed in order to derive resources like wood, medicines and for urban development hence, causes deforestation. Mountain building is a nature induced process and is not caused by human interactions with the earth system. Mountain formation is a geological process, which is caused by large scale movement of the earth's crust. Mountains are formed by folding and faulting of the earth's crust and due to volcanic activity.
Explanation:
When hypothesizing a possible phylogeny in order to classify taxa, scientists incorporate systematics to?
When hypothesizing a possible phylogeny in order to classify taxa, scientists incorporate systematics to provide primarily morphological information. Professionals frequently express hypotheses in if/then statements, e.g., if someone consumes a lot of sugar, then they will get cavities in their teeth.
These claims list particular variables and make predictions about the outcomes. In this instance, the sugar content is the variable, and cavities are the outcome. A hypothesis is a theory put up to explain a phenomenon. A hypothesis must be testable according to the scientific method for it to be considered a scientific hypothesis. Scientific phylogeny are typically based on prior observations.
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