In cells, metabolic pathways can be regulated at many different levels by the following processes allosteric regulation, protein modification, gene expression, substrate sequestration, and cell signaling.
metabolic pathways is a series of reactions that occurs in our body. There are various ways of controlling the metabolic pathways.
Allosteric regulation is the modification of the protein structure to change its active site and turn it on or off.
Sometimes during high demand gene expression increase to increase the amount of substrate.
in cell signalling hormones are used to turn off the genes while in substrate sequestration the substrate is accumulated in a compartment and not allowed to interact with enzyme.
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Martha's child was born with an extra chromosome, resulting in down syndrome. this is an example of:________
Martha's child was born with an extra chromosome, resulting in down syndrome, which is an example of a chromosomal condition called trisomy.
What is a trisomy?A trisomy is a genetic condition in which there is one extra chromosome in all somatic cells present in an individual, which is due to the faulty separation of chromosomes during meiosis.
In conclusion, Martha's child was born with an extra chromosome, resulting in down syndrome, which is an example of a chromosomal condition called trisomy.
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If you were working as a vice president of human resources, you would be considered a(n)?
If you were working as a vice president of human resources, then you would be considered a functional manager.
What is a functional manager?A functional manager is an individual who works to solve problems in a company by handling different groups of employees such as the human resources team.
In conclusion, If you were working as a vice president of human resources, then you would be considered a functional manager.
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Select the correct answer.
which activity provides the greatest reduction to the risk of disease-causing pathogens?
a. laundering with cold water
b. dusting
c. mopping the floor with water and disinfectant
d. polishing furniture
e. sorting laundry
which activity provides the greatest reduction to the risk of disease-causing pathogens?
a. laundering with cold water
b. dusting
c. mopping the floor with water and disinfectant
d. polishing furniture
e. sorting laundry
What is disease-causing pathogens?
Pathogens, often known as infectious or pathogenic diseases, include bacteria, viruses, fungi, and parasites. These pathogens can be present in the soil, water, and air, and contamination can result through touching, ingesting, or drinking something that has a germ on it.
Option C is the correct choice.
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What part of a cell is the site of rrna synthesis, and is also responsible for the assembly of ribosomal subunits?
What area of a cell is the location of rRNA synthesis and is also in charge of ribosomal subunit assemblage?
What is rRNA?
Ribosomal RNA (rRNA), a molecule in cells that is transferred to the cytoplasm and is a component of the protein-producing organelle known as a ribosome, aids in the conversion of messenger RNA (mRNA) into protein. rRNA, mRNA, and transfer RNA are the three main forms of RNA found in cells (tRNA).
Nucleolus area of a cell is the location of rRNA synthesis and is also in charge of ribosomal subunit assemblage.
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Enzymes are originally produced outside of a cell, though they may catalyze reactions inside the cell.
Enzymes are originally produced outside of a cell, though they may catalyze inside the cell. Catabolism consists of energy-releasing decomposition reactions. Enzymes are proteins that aid in the speeding up of metabolism, or the chemical events that occur in our bodies. Some chemicals are created while others are destroyed. Enzymes are found in all living organisms.
Enzymes are naturally produced by our bodies. Amylase, maltase, lactase, lipase, sucrase, and proteases are among the digestive enzymes. Amylase: Amylase is a saliva enzyme that aids in the conversion of carbohydrates to sugars. metabolism: This enzyme is found in saliva and converts the sugar maltose to glucose.
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What is another way in which human activity is increasing the amount of atmospheric co2.
The ways in which human activity is increasing the amount of atmospheric CO₂ is mass deforestation, burning of fuels, and excessive pollution.
Deforestation is the process of cutting down of trees. This has been one of the biggest cause on increase in CO₂ concentrations. The major reason for deforestation is demand for wood and the increased urbanization that demands land for farming, residence and industrialization.
Pollution is the presence of unwanted and harmful particles in the environment. Pollution can be of air, water, or noise. The air pollution is the cause of increased CO₂. Burning of household fuel, fuel from the vehicles and harmful gases from the industries are the major contributors.
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Denise just received the results of a complete physical that found her body is not producing enough insulin. which part of the endocrine system is affecting her body's ability to produce insulin?
The part of the endocrine system which affects her body's ability to produce insulin is referred to as the pancreas.
What is Insulin?This is defined as substance which is secreted into the bloodstream by the organ known as the pancreas and is leaf shaped. Its mode of action is to allow glucose to enter the body's cells to provide energy.
Insulin helps to regulate the blood sugar or glucose level in the body and a deficiency will lead to diabetes which comes with a lot of complications and risks.
This is therefore why pancreas was chosen as the most appropriate choice.
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Will the velocity of the book change as it moves across the surface WITH friction? Explain your answer.
Answer:
yes
Explanation:
Friction slows things down. It causes a opposite force on the book causing the speed to slow and come to a stop.
I need help pleaseeI really don’t get this so if y’all could please explain this to me I will appreciate it a lot!!!
Answer:
mRNA: UCU GUA GGU AAU UGG UGU CAC AUC
Amino Acid: Ser Val Gly Asn Trp Cys His Ile
Explanation:
For the mRNA it is the complemetary base pair (A and U) (G and C) remeber in RNA there is no T base pair so there is U intead
For the Amino acid the table above can be used (follow in order that the base triplet)
Secretion of _____________glands are package into vesicles and released by exocytosis.
a. apocrine
b. holocrine
c. merocrine
Answer:
Answer and Explanation: Merocrine secretion delivers the secretory products in membrane-bounded vesicles.
Explanation:
hope it helps:)
The most numerous of the leukocytes is the __________.
a) basophil
b) monocyte
c) eosinophil
d) neutrophil
e) lymphocyte
Answer:
D. neutrophil
Explanation:
because they are phagocytic and have light colored granules
The very simplest members of the order pythiales (oomycota) have a _____ thallus (chytridlike) that may occur entirely within the living host.
The very simplest members of the order pythiales (oomycota) have a monocentric, holocarpic thallus (chytridlike) that may occur entirely within the living host.
The Oomycota are a huge and diversified collection that includes two main (class level) clades, the Saprolegniomycetes and Peronosporomycetes and other early diverging classes, the majority of which are basic holocarpic creatures with no mycelial organization. The early-diverging orders include the marine seaweed parasites Eurychasmales and Olpidiopsidales, the worm infecting Haptoglossales, and the crab infecting Haliphthorales. The Saprolegniomycetes, which include the orders Atkinsiellales s.lat., Leptomitales, and Saprolegniales, are usually saprophytes or parasites of invertebrates and, on rare occasions, vertebrates such as fish and amphibians.
Peronosporomycetes have a variable thallus shape, ranging from a mycelium of hyphae (similar to Mycota hyphae, with tip growth) to allantoid or ellipsoid (holocarpic) cells, or monocentric and eucarpic thalli with an assimilative system formed of branching rhizoids. Obligate parasites can be endobiotic (completely contained inside a single host protoplast), intracellular (some hyphae entering the protoplasts of a host thallus), or intercellular with specialized side branches (haustoria) that pierce the host cell walls but not the protoplasts.
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The _____ is the bacterial structure that acts as a selective barrier, allowing nutrients to enter the cell and wastes to leave the cell.
The plasma membrane is the bacterial structure that acts as a selective barrier, allowing nutrients to enter the cell and wastes to leave the cell.
The plasma membrane can be described as a cell organelle that separates the interior of a cell from the exterior of cell. The plasma membrane of a bacterial cell is made from proteins and phospholipids.
The main function of the plasma membrane is to allow molecules to move in and out of a cell. The plasma membrane acts as a guard for the cell. The cell membrane acts as a semi-permeable membrane and allows selective entry of material inside a cell.
For a simple-celled organism like bacteria, the waste is excreted outside of a cell via the cell membrane.
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Mendelian inheritance, in which each the alleles of two (or more) different genes get sorted into gametes independently of one another, is the principle of'?
Mendel's law of independent assortment states that the alleles of two (or more) different genes get sorted into gametes independently of one another. In other words, the allele a gamete receives for one gene does not influence the allele received for another gene.
The maximum central nervous system (cns) effect of caffeine is reached about _________blank after drinking coffee
The maximum central nervous system(CNS) effect of caffeine is reached 1-2 hours after drinking coffee.
Coffee contains caffeine, which is a central nervous system stimulant.
Stimulants are those substances that act on the CNS and increase the alertness of both our body and mind.
Caffeine also acts on other parts of the body like the heart, muscles, airways, etc.
It is also present in other drinks like tea, soft drinks, etc.
When we drink coffee, it gets absorbed from the stomach and the small intestine in about 15 minutes.
From there it enters our bloodstream and reaches its maximum concentration around 1-2 hours after consuming coffee.
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Experiments involving the administration recombinant or synthetic nucleic acid molecules to transgenic rodents fall under which category of experiments?
Experiments with transgenic animals .If the protocol does involve the use of recombinant or synthetic nucleic acid molecules then the research is covered under III-D-4-a.
Institutional Biosafety Committees (IBCs) have been mounted below the NIH Guidelines to offer neighborhood evaluation and oversight of almost all types of studies using recombinant or artificial nucleic acid molecules.
The NIH Director approves those experiments. These experiments won't continue except accepted through the NIH Director and the IBC. The RAC is presently administered and supported through OBA, positioned in the Office of the Director of NIH, as a part of OBA's obligation to supervise federally funded rDNA research.
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Why are the ends of the a band the darkest region of the sarcomere when viewed under a microscope? (choose the best response)
This is because thick and thin filaments intersect there, the ends of the A bands are where they are darkest.
The primary contractile unit of muscle fiber in skeletal muscle is the sarcomere. The protein filaments (myofilaments) that make up each sarcomere are mostly the thick myosin and thin actin filaments. The term "myofibril" refers to the collection of myofilaments.
What are A-bands?
Anisotropic bands of the sarcomere include the A-bands.A-Bands are dark when viewed up close.The H zone, a large light zone, is located in the middle of a band.Primary myofilaments and fragments of secondary myofilaments are found in A-bands.A-band length doesn't alter while the muscle contracts.To learn more about sarcomere visit the link:
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If a total of 2000 kcal were consumed (energy came from 250 grams of carbohydrates, 66 grams of fat, and 102 grams of protein), what percentage of energy comes from carbohydrates, fat, and protein?
The percentage of energy that comes from carbohydrates, fats and protein are 50%, 30% and 20% respectively.
What are biomolecules and its importance?Biomolecules are necessary for the functioning of all living things. Many different small and big molecules, including amino acids, vitamins, fatty acids, neurotransmitters, and hormones, make up biomolecules (protein, carbohydrates, nucleic acids, and enzymes). Nucleic acids, lipids, proteins, and carbohydrates make up the four primary categories of biomolecules.
How long can people live without biomolecules?
Lipids, proteins, carbohydrates, and nucleic acids make up the building blocks of life. All life on Earth depends on each and every one of the four groups. A cell or creature could not exist without one of these four molecules.
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Which four of the following entities are generally included in the field of microbiology? multiple select question. viroids mosses archaea insects bacteria slime molds
Bacteria, Viroids, Slime Molds, and Archaea are included in the field of microbiology.
Microbiology is the study of microscopic or microorganism that can be cellular, acellular, unicellular, and multicellular. It has different branches of study like immunology, mycology, phycology etc. It is very beneficial stream which help us know about the growth pattern and habits of disease causing pathogens like virus, bacteria, and viroids etc.
Microorganism are versatile creatures and their detailed study helps to know about the vital role they play which can be further used in the benefit of humans like creating, vaccines, medicines, biotechnology, antidotes, products, etc.
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If a wide-spectrum fungicide that kills all fungal species were used extensively in a forest, what effects would you expect the treatment to have on the forest vegetation?
The majority of plants' capacity to absorb water and nutrients from soil would be significantly diminished.
Fungicide- Pesticides known as fungicides work to eradicate or stop the development of fungus and their spores. They are effective against rusts, mildews, and other plant-damaging fungi. They could also be used elsewhere to manage mold and mildew.
Fungus- Eukaryotic creatures known as fungi include yeasts, molds, and mushrooms as well as other microbes. These creatures fall under the category of fungus. The creatures that make up the Kingdom Fungi are pervasive and have a cell wall. They fall under the category of heterotrophs among living things.
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According to linnaean taxonomy, what is the most specific category and level shared by humans, gorillas, and howler monkeys (from the new world)?
The most specific category and level shared by humans, gorillas, and howler monkeys (from the new world) are Suborder Anthropoidea.
What is suborder Anthropoidea?Anthropoidea is a suborder of primates that includes humans, gorillas, and monkeys. Anthropoids are larger than prosimian primates and have flatter, more human-like faces. They also have larger brains.
Unquestionably apes, dryopithecines lived in the following Miocene. According to the conventional palaeontological theory, these Miocene apes gave rise to three new lineages in turn, one of which led to gibbons, another to big apes, and the third to humans.
However, it has long been held that the ancestors of both gibbons and orang-utans diverged from the ancestral line of the advanced Primates at an early date and that this line only later split into two groups, one of which included humans and the other of which included the gorilla and the chimpanzee; recent palaeontological evidence now tends to support this second view.
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Which statements describe scientific laws but not theories or hypothesis?check all that apply
They don't offer justifications for why they are accurate. They are regarded as established facts.
A theory essentially means the opposite. A well-supported explanation of a phenomenon in the natural world, including laws, hypotheses, and facts, is called a theory.A hypothesis is a statement about the natural world that can be verified by observations or tests. Hypotheses must be falsifiable—that is, they must be formulated in a fashion that allows them to be disproven—and be evaluated scientifically in order to be considered to be true.Scientific laws or laws of science are propositions that describe or forecast a variety of natural occurrences and are based on repeated tests or observations.Scientific rules condense the findings of tests or observations, typically within a specific applicability range. The accuracy of a law typically does not change when a new theory of the relevant phenomenon is developed; rather, the law's application area expands because the mathematics or statement that represents the law remains constant.Therefore, scientific laws, theory, and hypothesis are different aspects of Science.
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ASAP Think about objects that have density. Compare two types of foods by explaining which one is denser.
The rna responsible for bringing the amino acids to the ribosomes for protein synthesis is ___.
The RNA responsible for bringing the amino acids to the ribosomes for protein synthesis is tRNA.
In the field of science, Ribonucleic acid (RNA) can be described as a nucleic acid molecule that is single-stranded. RNA plays important functions such as helping is coding and decoding of the genome.
During the process of transcription, mRNA is formed from the DNA. These mRNA is referred to as transcripts that have a coding sequence for the formation of proteins. The mRNA carries a sequence for proteins in the form of codons. These codons have complementary amino acids which are brought to the ribosomes by the tRNA.
In the ribosomes, where the formation of protein has to occur, it is the transfer RNA (tRNA) that brings the amino acids to the ribosomes for protein synthesis.
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The __________ houses the nucleus and other cell parts. a. neural receptor b. myelin sheath c. cell body d. axon terminal please select the best answer from the choices provided a b c d
Answer:
Explanation: cell body
what is importance of plate tectonics in your life
Answer:It formed the continents we live on – we can't live under water. When plates collide and subduct (where one plate goes under another), magma is generated, creating volcanoes. We think several repetitions of this process is what built the continents. The tectonic plates are part of the water cycle of the Earth.
Explanation:
The change in organisms over geologic history is known as the _____. group of answer choices evolution of life biogeochemical cycle evolutionary cycle biospheric change
The change in organisms over geologic history is known as the evolution of life.
What is evolution of life?A biological population's heritable traits change over successive generations, and this process is called evolution. At every level of biological organisation, evolutionary processes give rise to diversity. The last universal ancestor is a term used to describe the common ancestor of all life on Earth.
Modern living things are a direct descendant of extinct ancient life forms, according to evolution, which explains how living things are changing today. The majority of the time, living things improve their environmental suitability as they develop. Due to their ability to adapt, they do this.
We can solve biological issues that have a direct impact on our lives by comprehending evolution. In the world of medicine, there are many fantastic examples of this. Researchers need to be aware of the evolutionary trends of disease-causing organisms in order to stay one step ahead of pathogenic diseases.
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In the fast block to polyspermy, binding of sperm opens up _________ channels, which depolarizes the egg membrane and _________.
Na+; prevents the entrance of any more sperm
In the fast block to polyspermy, binding of sperm opens up Na+ channels, which depolarizes the egg membrane and prevents the entrance of any more sperm.
What is the fats block to polygamy?The opening of Na+ channels in the egg plasma membrane is a quick stop to polyspermy. Na+ enters the egg cell and depolarizes its membrane. Additional sperm from fusing to the egg plasma membrane are prevented by this depolarization.How is polyspermy achieved?Altering the egg plasma membrane's electric potential causes a quick block to polyspermy. The ionic concentration of the egg is significantly different from that of its surroundings, and this membrane acts as a selective barrier between the egg's cytoplasm and the outer environment.What makes polyspermy block so crucial?A paternal excess of genome dosage in the endosperm causes aberrant seed development and seed abortion, therefore the polyspermy block in the central cell is crucial.To learn more about polyspermy visit:
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In the gram-positive bacterial cell wall, the tetrapeptides that extend from the peptidoglycan layers are linked by?
In the gram-positive bacterial cell wall, the tetrapeptides that extend from the peptidoglycan layers are linked by Peptide interbridges
The tetrapeptides can be directly cross-linked to one another, with the D-alanine on one tetrapeptide binding to the L-lysine/ DPA on another tetrapeptide. In many gram positive bacteria there is a cross-bridge of five amino acids such as glycine (peptide interbridge) that serves to connect one tetrapeptide to another
What are gram positive bacteria ?A lipopolysaccharide-containing outer membrane surrounds the peptidoglycan cell wall that encases gram-negative bacteria. Instead of having an outer membrane, Gram-positive bacteria are surrounded by layers of peptidoglycan that are much thicker than those seen in Gram-negative bacteria.
Christian Gram, a bacteriologist, developed a test in 1884 that could tell whether a bacterium possessed peptidoglycan, a thick membrane that resembled a meshwork. Gram positive bacteria have thick peptidoglycan. Thin peptidoglycan layers are indicative of gramme negative bacteria.Learn more about Gram positive bacteria here:
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Chemical analysis of a bacterial cell detects dipicolinic acid. what is the identity of this structure?
Endospore
Chemical analysis of a bacterial cell detects dipicolinic acid, endospore is the identity of this structure.
What is endospore?A latent, robust, and non-reproductive structure known as an endospore is created by specific Firmicute phylum bacteria. Lack of nutrition typically causes endospore development, which typically happens in Gram-positive bacteria. The bacterium divides within its cell wall to produce endospores.What are endospores and what do they do?In times of intense stress, it enables the bacterium to produce a dormant and extremely resistant cell to protect the cell's genetic material. Endospores are resistant to environmental stresses that would usually result in the bacterium's death.Where can you find endospores?Endospores can endure for a very long time in water and soil, where they are frequently found. There are many different types of microorganisms that can generate "spores" or "cysts," but the endospores of low G+C gram-positive bacteria are by far the most hardy.What part does dipicolinic acid play in the development of endospores?2,6-pyridine dicarboxylic acid (also known as dipicolinic acid, or DPA), which adds to heat resistance, is a crucial factor in how well endospores tolerate harsh climatic conditions.To learn more about endospore visit:
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