Describe the regulation of blood sugar level in man
Answer:
The regulation of blood sugar levels in humans is a complex process involving several hormones and organs. The main hormones involved in regulating blood sugar levels are insulin and glucagon, which are produced and secreted by the pancreas.
When blood sugar levels rise, such as after a meal, the pancreas releases insulin. Insulin acts on cells throughout the body, including muscle and fat cells, to promote the uptake and storage of glucose (sugar) from the bloodstream. Insulin also promotes the synthesis of glycogen (a form of glucose storage) in the liver and decreases the breakdown of glycogen. This results in a decrease in blood sugar levels.
When blood sugar levels drop, such as between meals or during exercise, the pancreas releases glucagon. Glucagon acts on the liver to promote the breakdown of glycogen into glucose and the synthesis of glucose from non-carbohydrates sources. This increases the glucose levels in the bloodstream.
Additionally, the hormone adrenaline (epinephrine) which is produced by the adrenal glands also plays a role in regulating blood sugar. When blood sugar levels drop, adrenaline causes the liver to release glucose into the bloodstream, which helps to raise blood sugar levels.
The hormone cortisol which is also produced by the adrenal gland, can also affect blood sugar levels, by increasing the glucose production by the liver and decreasing glucose uptake by the cells.
Finally, the hormone somatostatin, also produced by the pancreas, can inhibit the release of both insulin and glucagon, which regulates the balance between the two hormones.
The overall balance between insulin and glucagon and other hormones is regulated
Answer: Glucagon instructs the liver to release stored glucose, which causes the body's blood sugar levels to rise.
Explanation:
Tell me if this is right or not pls.
true or false? Transcription factors regulate the gene expression either by enhancing transcription, attracting RNA polymerase, or block the access to certain
genes.
True. Transcription factors regulate gene expression by binding to specific DNA sequences, either enhancing or blocking the transcription of genes by attracting or repelling RNA polymerase.
RNA polymerase is an enzyme that synthesizes RNA from a DNA template. It catalyzes the transcription of DNA into RNA by adding ribonucleotides to a growing RNA strand complementary to the template DNA strand. RNA polymerase is a complex enzyme, and different types exist in different organisms.
In eukaryotes, RNA polymerase II is responsible for the transcription of most protein-coding genes.DNA (deoxyribonucleic acid) is a long, double-stranded biomolecule that carries the genetic instructions used in the development, functioning, and reproduction of all living organisms.
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Which statement describes what will most likely occur when warm air cools and the temperature drops to the dew
point?
O Air will contain more water vapor.
O Dew will form on leaves.
O Clouds will disappear.
O Water vapor in the air will evaporate.
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O Dew will form on leaves.
The dew point is the temperature at which water vapor in the air will condense into liquid droplets. It is a measure of the amount of moisture in the air. The higher the dew point, the more moisture in the air. The dew point temperature is determined by the air temperature and the amount of water in the air. When air cools, its capacity to hold moisture decreases. If the air cools to its dew point, the excess moisture condenses, forming dew.
In the morning, the temperature on the ground is often more excellent than the temperature in the air. As the sun rises, the ground warms up, and the air above it cools. As the temperature drops to the dew point, the moisture in the air condenses on surfaces such as leaves, blades of grass, and other outdoor surfaces that are at or near the dew point temperature.
The statement "Air will contain more water vapor" is incorrect, as dew forms when the air can no longer hold its moisture and the excess water vapor condenses.
The statement "Clouds will disappear" is not correct, as dew formation is a phenomenon related to the condensation of water vapor, and clouds are formed by the same process, but at higher altitudes. "Water vapor in the air will evaporate" is also not correct, as the temperature dropped to the dew point, which is the point where the water vapor condenses, not evaporates.
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Please help me.
Viruses are mostly made up of 2 parts: a ‘capsid’ and its ‘genome’.
a) Explain what a ‘capsid’ is:
b) Explain what a ‘genome’ is:
(The ‘genome’ should be reviewed.)
Viruses are mostly made up of a ‘capsid’ composed of proteins that contain all structural features of the viruses and a ‘genome’ which contain the genetic material required to survive and reproduce in the host.
What is the viral genetic material?The viral genetic material may be composed of other DNA or RNA and it serves the virus in order to synthesize structural proteins and other components of its molecular machinery,
Therefore, with this data, we can see that viral genetic material is required for the survival of the virus and can be either DNA or RNA.
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what is the most popular means by which bacteria obtain food
The majority of bacteria are heterotrophic decomposers, which means they consume dead stuff and rely on other species for nutrition.
What do you mean by decomposers?Decomposers are organisms that disintegrate rotting or dead species; they carry out decomposition, a process only some kingdoms, like fungi, are capable of. Decomposers, like herbivores and predators, are heterotrophic, which means that they obtain their energy, carbon, and growth-supporting nutrients from organic substrates. Detritivores consume and digest dead matter inside, whereas decomposers directly absorb nutrients by external chemical and biological processes, despite the fact that the terms decomposer and detritivore are sometimes used interchangeably. Because they can't absorb nutrients from the environment, invertebrates like earthworms, woodlice, and sea cucumbers are technically detritivores rather than decomposers.
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in step 6 of the citric acid cycle when succinate is converted to fumarate, hydrogen atoms are transferred to fad. the ____________ is catalyzed by a dehydrogenase enzyme.
Citric acid cycle when succinate is converted to fumarate, hydrogen atoms are transferred to fad. the succinate is catalyzed by a dehydrogenase enzyme.
In general ,Succinate is converted to fumarate in step 6 of citric acid cycle in this step dehydrogenation usually takes place because two protons are removed. FAD also serves as coenzyme that is attached covalently to the enzyme succinate dehydrogenase, so it is written with notation E-FAD .
Succinate dehydrogenase (SDH) is component of respiratory complex II present in mitochondrion, and these complexes are responsible for converting succinate to fumarate as part of the Krebs cycle. SDH is mainly formed of four distinct proteins called SDHA, SDHB, SDHC, and SDHD.
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What did scientists and their partners do to help protect the hatchlings from certain death?.
It is untrue. At every phase of the moon, hatchlings leave their eggs and manage to locate the ocean.
How are sea turtles being protected?CITES, or the Convention on International Trade in Endangered Species, is one of the most significant international agreements that safeguards sea turtles. This agreement forbids the importation and exportation of sea turtles, sea turtle goods, and other related wildlife across international borders. It also helps prohibit poachers from killing sea turtles.
Why are sea turtle eggs kept in a safe place?The Kemp's ridley, leatherback, hawksbill, and green turtles are all listed as endangered under the federal Endangered Species Act. It is classified as endangered to see loggerheads. This makes it unlawful to hurt, threaten, or kill any sea turtles, their eggs, or their hatchlings.
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Emergent properties of living systems are properties that __________.
A. are apparent only when an organism is studied at the molecular level
B. are evident during only one portion of the life cycle of an organism
C. define the cell's surroundings
D. are due to the arrangement and interactions of parts as complexity increases
Emergent properties of living systems are properties that are due to the arrangement and interactions of parts as complexity increases. Here option D is the correct answer.
Emergent properties are characteristics that arise from the interactions of the parts of a system and cannot be predicted from the properties of the individual parts. They are not the property of the individual parts but are the property of the system as a whole.
For example, the properties of a cell, such as its ability to respond to its environment and carry out metabolism, are emergent properties that arise from the interactions of the various organelles and molecules within the cell.
Similarly, the properties of a multicellular organism, such as the ability to sense and respond to the environment, are emergent properties that arise from the interactions of the cells and tissues within the organism.
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Which of the following statements about heterochromatin are true?
A. It is transcriptionally inactive.
B. It remains condensed during interphase, when active chromatin decondenses.
C. Constitutive heterochromatin is found in specialized parts of the chromosome that are never expressed, such as centromeres and telomeres.
D. Facultative heterochromatin can control gene expression by placing gen es in an inaccessible chromatin structure
Constitutive heterochromatin is present in specific regions of the chromosome which are never transcribed, including such centromeres and telomeres, and it is transcriptionally inert.
What does heterochromatin do and why?Eukaryotic genomes contain heterochromatin, which serves a variety of purposes including regulating gene expression and preventing Replication process and repair. Heterochromatin throughout the nucleus physically separates from heterochromatin and is predominantly localized to the nuclear perimeter and region around the nucleolus.
Why is heterochromatin necessary?Heterochromatin guarantees that cohesin is attracted to centromeric areas in high population density, but it may also play further roles in mitotic spindle architecture, merotely prophylaxis, and centromeres assembly.
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How are the properties of elements related to the properties of the compounds they make?.
Chemical characteristics of a compound differ from those of the constituent elements. When two or more atoms are chemically linked, molecules are created (bonded)
A compound always has the same constituents in the same proportions. The qualities of compounds vary from the constituent constituents' characteristics, sometimes noticeably. This is due to the fact that when elements in a compound combine, a whole new substance with distinct features results.
A single sort of atom makes up an element, hence that atom itself is the representation of all the characteristics of that element. Compounds are made up of the same kind of molecules as substances. Chemical reactions cannot degrade elements. Simpler compounds can be made from more complex ones.
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Is it possible to have a calico cat that is male Why or why not?.
Yes, it's possible to have a manly calico c-at.
Calico pus-sy-cats are generally womanish due to their X chromosome, but it's possible for a manly calico cat to live in certain cases. This is due to a inheritable mutation known as Klinefelter's Syndrome, which causes the manly calico to have an redundant X chromosome. This redundant X chromosome is what allows for the manly calico to have the distinctive calico markings. Although calico pus-sycats are generally womanish, it's possible for manly calicos to live due to this inheritable mutation.
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in animal cells, a pair of small cylindrical structures composed of microtubules that duplicate during interphase and move to opposite ends of the cell during prophase is called ?
When two centrosomes are separate and moved towards opposite sides of the nucleus, forming the two poles of the mitotic spindle.
The microtubule act and distribution undergo profound changes when the interphase microtubule array get vanished and microtubules extend from the enlarged centrosomes to inquiry about the 3-D space around each centrosome to set up the short prophase spindle .
Thus , G1 phase is phase associated with the growth of organelles and cell. The S phase is associated with synthesis of DNA when it is replicated. Stabilization of interphase microtubules, and the formation of microtubule clumps during prometaphase to the transient formation of multipolar spindles mostly occurs prior to anaphase .
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What areas were deforested during the early renaissance what was the response?A. apply selective tree harvesting to prevent further damageB. use fires to clear underbrush and dead woodC. move on to another forested areaD. plant new trees
Move on to another forested area was deforested during the early renaissance.
What is deforestation?
Deforestation is the removal of a forest or tree stand from land before it is put to another use other than that of a forest. Conversion of forest land to farmland, ranches, or urban usage is a form of deforestation. Tropical rainforests experience the highest concentration of deforestation. At the moment, woods encompass about 31% of Earth's land area. This is a third less than the amount of forest cover there was before agriculture became more prevalent, with half of that loss occurring in the last century. An area the size of Bangladesh's forest is lost each year between 15 and 18 million hectares. 2,400 trees are typically felled every minute.
Hence the correct answer is D, Move on to another forested area.
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name the product of the process known as chemiosmosis
Chemiosmosis is involved in the generation of adenosine triphosphate (ATP), the primary chemical used by the cell for energy.
What do you mean by chemiosmosis?Chemiosmosis is the passage of ions down an electrochemical gradient over a semipermeable membrane bound structure. The generation of adenosine triphosphate (ATP) by the transport of hydrogen ions (H+) across a membrane during cellular respiration or photosynthesis is a good example. When ions flow through a channel, they generate potential energy, which can be used to power chemical reactions (red). Hydrogen ions, or protons, will diffuse from a high proton concentration zone to a low proton concentration region, and an electrochemical concentration gradient of protons across a membrane can be used to generate ATP. This process is similar to osmosis, the passage of water through a selective membrane, which is why it is named "chemiosmosis".
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Can you digest food without a large intestine?.
The primary function of the large intestine or colon is to absorb water and electrolytes in order to concentrate the stool. It has little effect on metabolism, and people can live normal lives without it.
The large intestine serves only one purpose: water and electrolyte absorption to concentrate the stool. It has little effect on metabolism, and people can live normal lives without it.
The surgeon may use a portion of your small intestine to create a pouch that is attached to your anus after removing both the colon and the rectum (proctocolectomy) (ileoanal anastomosis). This enables you to expel waste normally, even if you have several watery bowel movements per day.
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the master gland that controls other glands and many bodily functions
Because it regulates the functions of many other endocrine glands, the pituitary gland is sometimes referred to as the "master" gland of the endocrine system.
The pituitary gland is a small gland located at the base of the brain.
Your pituitary gland is about the size of a pea and is located in a bony hollow just behind your nose bridge. A thin stalk connects it to the base of your brain. Because it regulates several other hormone glands in your body, including the thyroid and adrenals, as well as the ovaries and testicles, the pituitary gland is known as the master gland.
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energy use needed to sustain your home
Energy use needed to sustain your home include the following below:
Use of energy-efficient light bulbs.Clean or replace air filters.Turn off appliances when not in use etc.What is Energy conservation?This is referred to as the decision and practice of using less energy through the practice and adoption of certain techniques.
An example is to ensure that energy efficient light bulbs is used in homes which will help reduce the risk of energy being lost as heat and other forms. Turning off appliances when not in use too will ensure that energy is conserved in the home of an individual.
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The full question:
energy use needed to sustain your home include?
those that carry impulses from the cns out to the muscles and glands?
The CNS sends signals to effector organs like muscles and glands through efferent, or motor, neurons.
The adult rat brain's hippocampus has a process known as neurogenesis when new neurons are created. Later, he claimed that newly formed neurons moved from the hippocampus, where they originated, to other regions of the brain. Michael Kaplan, a different researcher, corroborated Altman's discoveries in the rat brain in 1979, and in the adult monkey's forebrain in 1983, he discovered neural precursoar cells. Other researchers who didn't think these revelations about neurogenesis in the adult brain could be accurate in people were shocked by them. However, in the early 1980s, a researcher who was working to understand how birds learn to sing recommended that neuroscientists take another look at adult brain neurogenesis and start to comprehend how it might make sense.
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What will happen if the enzyme is added to proteins? Explain
what are the functions of osteoblasts and osteoclasts in the formation of bone
Osteoclasts are responsible for aged bone resorption and osteoblasts are responsible for new bone formation. cytokinin involved in bone remodeling.
In order to maintain appropriate skeletal structure and function, bone must undergo continuous remodelling. So, diseases like osteoporosis may result from unbalance. Bone remodelling is a complex process involving numerous cell types and elements. These processes primarily involve the two cells known as osteoblast and osteoclast. For the resorption of old bone and the production of new bone, respectively, osteoclasts and osteoblasts are responsible. Under physiological circumstances, the resorption and formation are steady. The structure or function of the bones will be aberrant if the balance is off, though. Osteoporosis and osteopetrosis are diseases of the bone metabolism that can occur.
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The parent generation have genotypes of Aa BB Cc and AA Bb CC. What is the probability the F1 generation would be AA bb cc?
How do I do this without using a Punett/trihybrid/dihybrid.
Thanks, much appreciated
To calculate the probability of a particular genotype in the F1 generation without using a Punnett/trihybrid/dihybrid square, you can use the law of probability.
This law states that the probability of an event is equal to the number of favorable outcomes divided by the total number of possible outcomes.
In this case, the total number of possible outcomes is 4, since each parent can contribute 2 alleles (AA, Aa, aa, BB, Bb, bb, CC, Cc, cc). The number of favorable outcomes is 1, since only one combination of alleles (AABbcc) will result in the desired genotype.
Therefore, the probability of the F1 generation having genotype AA bb cc is 1/4, or 25%.
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What role does the sensory
division play in the nervous
system?
A. carries response to stimuli slowly
B. senses internal and external surroundings
C. makes decisions of how to respond to stimulus
D. performs reflexes
Carries response to stimuli slowly is the role does the sensory division play in the nervous system.
What is the sensory division?The sensory (afferent) division transports sensory impulses from central nervous system receptors through afferent nerve fibres (CNS). It can be separated into somatic and visceral divisions for further subdivision. Signals coming from receptors in the skin, muscles, bones, and joints are carried by the somatic sensory division.The CNS receives signals from peripheral organs through the afferent or sensory division. Impulses from the CNS are sent out to the peripheral organs through the efferent or motor division to produce an effect or action.The sensory division gathers data (touch, pain, pressure, vision, taste, etc.) from both the somatic and visceral sides of the body and sends it to the central nervous system.Learn more about Sensory division refer to ;
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What is genetic engineering and its scope?.
Genetic engineering, also known as genetic modification, is the use of biotechnology to directly manipulate an organism's genome. It is a set of technologies used to change the genetic composition of cells, including gene transfer within and across species boundaries, in order to create better or novel organisms.
Genetic engineering has enormous potential in the fields of drugs, medicines, and pharmaceuticals. Various diseases, including genetic disorders, can be diagnosed and treated using gene therapy. Genetic engineering can be used to create drugs, drug delivery systems, and vaccines for a variety of deadly diseases such as Hepatitis B, AIDS, smallpox, and others.
Genetic modification can be used to improve various crops in agriculture and animal husbandry.
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What were the important results of Mendel's first experiments?.
Mendel discovered a similar 3-to-1 ratio of contrasting features for each of the seven characters he analyzed in the F2 generation.
One trait at a time was the first thing Mendel studied. His law of segregation resulted from this. According to this law, each trait is governed by two elements that, during an organism's reproduction, segregate and affect different gametes.
The local Natural History Society received a presentation from Mendel in 1865 on the findings of his research involving around 30,000 pea plants. He showed how qualities faithfully pass from parents to children in dominant and recessive patterns, independently of other features.
Mendel's First Law, sometimes referred to as The Law of Equal Segregation, is founded on this idea.
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choose all that are components of a visceral reflex arc.
A visceral reflex arc is made up of the following cells: receptors, afferent neuron, interneuron, efferent neurons, and effector.
Reflex arc: what is it?In vertebrates, the majority of sensory neurons converge in the spinal column rather than passing directly into the brain. By turning on spinal motor neurons, faster reflex responses can be triggered without having to wait for signals to travel to the brain.
What are the five reflex arc steps?Reflexes function correctly every time with the aid of inhibitory interneurons. The five components of the reflex arc are the sensor, perception neuronal, central node, neuromuscular junction, and muscle, in that sequence. Knowledge is first detected throughout the sensor and then transmitted along sensory neurons in a reflex.
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macromolecules in which class have the key function of storing genetic information?
Nucleic acids are the class of macromolecules that have the key function of storing genetic information.
Nucleic acids are an essential class of macromolecules that are responsible for storing genetic information.
This information is what helps direct the cell in its functions and allows for life to exist. Nucleic acids are composed of nucleotides, which are made up of a nitrogenous base, a five-carbon sugar and one or more phosphate groups.
These nucleotides are connected to form polynucleotides which form the two types of nucleic acids: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA stores the genetic information and is found in the nucleus of the cell, while RNA is responsible for carrying this genetic information to other parts of the cell.
Without nucleic acids, life as we know it would not exist.
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________________ ______________________ are epidermal cells that play a role in the immune response.
The epidermis is home to a thick network of immune system sentinels called Langerhans cells (LCs). As an extensive network of immune system sentinels, Langerhans cells (LCs) are found in the epidermis.
The Langerhans cells analyze the microenvironmental circumstances in which they come into contact with foreign substances to decide the proper adaptive immune response (inflammation or tolerance). LCs orchestrate a constant state of immunological tolerance in a typical physiological, "non-dangerous" scenario, preventing needless and detrimental immune activation. On the other hand, when they detect a threat, such as during an infection or when the physical integrity of the skin has been damaged as a result of trauma, they give the adaptive immune system's T lymphocytes instructions to build effective effector responses.
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Which process would bacteria living near a heat vent on the ocean floor use it build carbon-based molecules, such as sugars?A. Light- independent reactions B. Cellular respiration C. Fermentation D. Chemosynthesis
'Chemosynthesis' basically is the process which a bacteria living near a heat vent on the ocean floor use to build carbon-based molecules, such as sugars.
What do you mean by Chemosynthesis?
Chemosynthesis is a process by which some organisms use chemical energy to produce carbohydrates. This process occurs in environments where sunlight is not available, such as deep-sea hydrothermal vents. Organisms such as bacteria and other microbes convert chemicals such as hydrogen sulfide and methane into energy, which they use to produce organic molecules such as glucose.
The bacteria living near hydrothermal vents on the ocean floor use chemosynthesis to build carbon-based molecules, such as sugars, from the hydrogen sulfide and other chemicals that are spewed from the vent. The bacteria use the energy from the chemical reaction to form carbohydrates from the chemical reaction, which are then used as a source of energy for the bacteria. This process is thought to be the first form of energy production for life on Earth, and is seen as an important part of the global carbon cycle.
Hence, option D is correct.
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How radiation and wave phenomena are related to the tory of dicovery
of DNA. Set in time, write about the cientit involved and the experience they carried out, and what
managed to dicover
Rosalind Franklin found that DNA had a density and, more significantly, proved that the molecule had a helical structure. James Watson and Francis Crick's theory that DNA is a double-helix polymer was made possible by her work to make the X-ray patterns of DNA molecules more distinct.
What was the DNA discovery made by Francis Crick?James Watson and Francis Crick's discovery of the double helix, or twisted-ladder structure of deoxyribonucleic acid (DNA), in 1953 was a turning point in science history. It also sparked the development of modern molecular biology, which is primarily concerned with understanding how genes regulate the chemical processes.
How has the DNA research done by Watson and Crick impacted the study of evolution?Since DNA was discovered, scientists have been able to distinguish not only between genes and individual nucleotides. Prior to the discovery of DNA, researchers could only piece together the evolutionary history of life by contrasting the tissues and cells of various species.
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Unlike implicit memories, explicit memories are processed by the a. corpus callosum b. hippocampus c. cerebellum d. hypothalamus e. motor cortex.
The hippocampus processes explicit memories as opposed to implicit memories.
The correct option is b.
Declarative memory, also known as explicit memory, refers to conscious long-term memory that can be quickly and consciously recalled and recited. Implicit memory, which is a deceptive, unconsciously held kind of memory, contrasts with it.
Through a process of encoding and retrieval, explicit memories are created. The information is "recorded" in the brain during the encoding phase.
The brain's temporal lobe contains the hippocampus, where memories are "created." The hippocampus binds neurons together, bringing all the many pieces of information in the memory together (the music, the smells, the colors, etc.).
Flashcards, vocal repetition, revisiting photos, and other techniques can be used to consciously code explicit memories. The hippocampus receives repeated exposure to memories when someone practises them. Recalling rehearsed memories is frequently simpler in the future.
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