What are the differences between internal receptors and cell-surface receptors?
A. Intemal receptors bind to ligands that are hydrophobic, and the ligand-receptor complex directly enters the nucleus, initiating transcription and translation Cell-surface
receptors bind to hydrophilic ligands and initiate a signaling cascade that indirectly influences the making of a functional protein
B. Internal receptors bind to ligands that are hydrophilic, and ligand-receptor complex directly enters the nucleus, initiating transcription and translation. Cell-surface
receptors bind to hydrophobic ligands and initiate a signaling cascade that indirectly influences the making of a functional protein
C. Internal receptors bind to ligands that are hydrophobic and initiate the signaling cascade that indirectly influences the making of a functional protein. Cell-surface
receptors bind to hydrophilic ligands, and a ligand-receptor complex directly enters the nucleus, initiating transcription and translation.
D. Internal receptors are integral membrane proteins that bind to hydrophobic ligands, initiating a signaling cascade, which indirectly influences the making of a functional
protein. Cell-surface receptors bind to hydrophilic ligands, and the ligand-receptor complex directly enters the nucleus, initiating transcription and translation
Answers
There are many differences between internal and cell-surface receptors. The following are some of the differences between the Location of the receptor Internal receptors are located within the cytoplasm or the nucleus of the cell.
Type of signalling molecule Internal receptors bind to hydrophobic molecules, whereas cell-surface receptors bind to hydrophilic signalling molecules.
They initiate a signalling cascade, which indirectly influences the making of a functional protein.4. Intracellular versus extracellular pathways.
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Related Questions
Which of the following would be the best experimental design for a study looking at the effect of hand-washing on the incidence of acquiring an infectious disease? O Choose 10 people in a large office to participate in an experiment. Instruct 5 people to wash their hands every hour, and instruct the other 5 people to wash their hands only when truly necessary. Compare the incidence of infectious disease between the two groups over the course of one month. O Choose two different office buildings where a large number of people consistently spend time. Instruct the people in one office building to wash their hands every hour, and instruct the people in the other office building to wash their hands only when truly necessary. Compare the incidence of infectious disease between the two groups over a period of two weeks. O Choose a setting where a large number of people consistently spend time, such as an office building. Ask everyone to wash their hands every hour for one year. For the next year, ask everyone to wash their hands only when truly necessary. Compare the incidence of infectious disease between the two years. O Choose a setting where a large number of people consistently spend time, such as an office building. Randomly assign everyone to one of two groups. Ask one group to wash their hands every hour, and ask the other group to avoid washing their hands except when truly necessary. Compare the incidence of infectious disease between the two groups over a period of months or years.
Answers
The best experimental design for a study looking at the effect of hand-washing on the incidence of acquiring an infectious disease would be:
O Choose a setting where a large number of people consistently spend time, such as an office building. Randomly assign everyone to one of two groups. Ask one group to wash their hands every hour, and ask the other group to avoid washing their hands except when truly necessary. Compare the incidence of infectious disease between the two groups over a period of months or years.
This design ensures random assignment of participants to different groups, minimizing potential biases. It also allows for a direct comparison between a group with frequent hand-washing and a group with less frequent hand-washing. By observing the incidence of infectious diseases over an extended period, the long-term effects of hand-washing practices can be evaluated more accurately.
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9.--- are primary consumers
plants
carnivores
herbivores
Answers
Answer:
herbivores
Explanation:
The first phase of mitosis, in which chromosomes condense, becoming visible, the nuclear membrane dissolves, the centrosomes move to opposite ends of the nucleus, and spindle fibers form
Answers
Prophase is described as the first stage of mitosis, during which the cell begins to position itself to separate the chromatids and divide. During prophase, the nuclear envelope and nucleolus dissolve and chromosomes condense.
What is Mitosis?Mitosis is defined as the end of the cell cycle in which duplicated chromosomes separate into two new nuclei giving rise to genetically identical cells in which the total number of chromosomes remains the same. That's why mitosis is also called parity division.
Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase where the prophase is the first visible stage in karyokinesis. During prophase, the nuclear envelope and nucleolus dissolve and chromosomes condense.
Thus, Prophase is described as the first stage of mitosis, during which the cell begins to position itself to separate the chromatids and divide.
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suggesting
Sleep may decrease the activity of neurons associated with
an important cognitive benefit of sleep.
forgetting
intelligence
language
O problem solving
Answers
Answer:
Forgetting and Problem solving
Explanation:
This question was formatted weirdly but I hope this answer helps! Let me know if this was what you were looking for.
the auditory sensory axons of the ..... branch of cranial nerve number ........ terminate in the cochlear nucleus within the brainstem.
Answers
The auditory sensory axons of the cochlear branch of cranial nerve number 8 terminate in the cochlear nucleus within the brainstem.
The cochlear nerve is responsible for transmitting auditory signals from the inner ear to the cochlear nuclei within the brainstem and ultimately to the primary auditory cortex within the temporal lobe.
The organ of Corti is located along its basilar membrane in the cochlea, a spiral chamber in the bone auditory labyrinth that is filled with fluid. The spiral (cochlear) ganglion's bipolar neurons form the connection between the organ of Corti and the central nervous system (CNS). The modiolus' spiral canal is where the spiral ganglion is situated. The spiral ganglion is populated by type I and type II neurons, both of which send central processes that come together to form the auditory nerve and peripheral processes to the ciliated hair cells of the organ of Corti.
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please answer quick, ill give first person to answer brainliest
Should designers of Olympic medals use other elements to make an Olympic medal? Use your knowledge of elements to propose three different elements they should consider. Be sure to consider and include the properties of metals and nonmetals as well as solids, liquids, and gases. What other elements besides Gold, Silver, and Bronze (not an element, it's an alloy of copper and tin) should the designers use? Explain your selections and respond to two posts from other students.
Answers
Olympics medals are required to be made from a minimum of 92.five% silver, and most effective want to be made up of six grams of gold minimum. With 1.34% gold, the last 6.16% is made from copper. the one's guidelines.
The gold and silver medals are both products of silver. The gold medals are then covered with gold. every Olympic gold medal is made up of 210g of silver and is coated with 6g of 24-carat gold. The bronze medals are made of copper, zinc, tin, and a very small amount of silver.
Silver medals, on the other hand, are made from pure silver, while bronze medals are 95 percent copper and 5 percent zinc. The form of medals is commonly circular with an attachment for a chain or a ribbon. The minimum diameter is 60 millimeters, and the thickness is at the very least three millimeters.
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what animal is the descendant of Gilmoreosaurus
Answers
Answer:
Dinosaurs!
Explanation:
please help!!
How do living organisms maintain homeostasis on a cellular level?
Answers
Answer:
Hello
To maintain homeostasis, unicellular organisms grow, respond to the environment, transform energy, and reproduce. A single-celled, or unicellular, organism does everything you would expect a living thing to do.
Answer: for living organisms to maintain homeostasis, unicellular organisms grow, react to the environment, convert energy, and reproduce.
Explanation: A single celled, or unicellular organism does everything you would demand a living thing to do.
the plantar reflex tests spinal nerves in which of the following regions of the spinal cord
Answers
Answer:
jiohiog
Explanation:
i need help on this too
The plantar reflex is a neurological examination for the S1 region of the spine.
The plantar reflex is the superficial response of the nervous system. The response to the stimulus of the foot with the blunt instrument at the spinal cord is observed in plantar reflex.
Which region of the spinal cord was tested in Plantar reflex?The spinal cord is the part of the nervous system and is able to give immediate signals for the reaction against stimuli.
The signals from the movement of the signals from the toe reflex to the spinal are governed by the S1 region of the spinal cord.
Thus, the plantar reflex is a neurological examination for the S1 region of the spine.
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the increase in farm productivity as a result of the invention of the harvester and other farm equipment has:
Answers
The increase in farm productivity as a result of the invention of the harvester and other farm equipment has significantly improved efficiency, reduced labor requirements, and increased crop yields.
The invention of the harvester and other farm equipment has revolutionized agricultural practices by automating and streamlining various tasks. These technological advancements have led to increased farm productivity in multiple ways. The harvester, for instance, has mechanized the process of harvesting crops, reducing the need for manual labor and making it more efficient.
Additionally, other farm equipment such as tractors and irrigation systems have improved efficiency in planting, cultivation, and irrigation, further enhancing productivity. By reducing labor requirements and increasing the speed and accuracy of farming operations, these inventions have played a pivotal role in boosting crop yields and overall farm productivity.
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Predict how much oxygen could be obtained from 15 grams of water.
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choose all the following that describe gene flow. group of answer choices evolution of allele frequencies by assortative mating. evolution of allele frequencies by overproduction of offspring. evolution of allele frequencies by chance evolution of allele frequencies by interbreeding between populations evolution of allele frequencies by differential survival and reproduction.
Answers
evolution of allele frequencies by interbreeding between populations, and the evolution of allele frequencies by differential survival and reproduction.
What is the meaning of evolution?
The term "evolution" describes the process through which various types of animals grow and alter over the course of generations via mechanisms such as natural selection and genetic diversity. New species that are more adapted to their surroundings and more likely to survive and reproduce are created as a result of this process. The idea of evolution is important to biology and offers a rationale for the variety of life on Earth.
Evolution is the shift in a biological population's heritable traits over successive generations. These traits are the expressions of genes, which are passed down through reproduction from parent to offspring.
forces: natural selection of organisms combined with haphazard mutations in the genomes of living things.
Divergent, convergent, and parallel evolution are the three main kinds of evolution.
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a terminator in mrna synthesis is a(n) __________.
Answers
A terminator in mRNA synthesis is an Hlnts stop codon.
What is mRNA synthesis?The nucleus, where mRNA is produced, uses the nucleotide sequence of DNA as a template. When elements that help to maintain nuclear DNA are disturbed, transcription (the creation of mRNA) begins.
"In eukaryotic cells, Hlnts stop codon specific nucleotide sequence in DNA that signals the RNA polymerase to stop specific nucleotide sequence in mRNA that signals the RNA polymerase to stop an enzyme whose specialized purpose is to cease transcription" is a terminator in mRNA synthesis.
Thus, a terminator in mRNA synthesis is an Hlnts stop codon.
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Identify the input energy converter and two output energies involved in a student eats a hamburger
Answers
The input energy converter is Student's digestive system and the two output energies involved in a student eats a hamburger are mechanical energy, thermal energy.
In the context of a pupil ingesting a hamburger, allow perceive the enter energy converter and output energies concerned with this technique.
The enter power converter on this scenario might be the pupil's frame, in particular the digestive system. The act of eating includes the conversion of capability power within the food into chemical strength thru the technique of digestion. The digestive device breaks down the complicated molecules inside the hamburger into much less difficult paperwork that may be absorbed and utilized by the body.
As for the output energies, actually one in every of them is mechanical electricity. When the student chews and swallows the hamburger, the digestive device converts the chemical power received from the meals into mechanical power to help in propelling the meals thru the digestive tract.
Another output power is thermal electricity. During digestion, the chemical reactions that stand up to break down the meals launch warmth power. This thermal electricity contributes to preserving the student's body temperature and is eventually dissipated into the surroundings.
To summarize:
Input energy converter: Student's digestive system
Output energies:
Mechanical energy - worried with the method of chewing and propelling food via the digestive tract.
Thermal energy - is launched as a byproduct of the chemical reactions for the duration of digestion, contributing to body temperature upkeep.
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Which of the following are essential properties of successfully developing T cells? MHC resistance and high affinity MHC resistance and self-tolerance high affinity and self selection MHC restriction and self-tolerance MHC restriction and apoptosis
Answers
MHC restriction and self-tolerance are crucial traits for growing T cells to have. The answer is MHC restriction and self-tolerance.
The capacity of T lymphocytes to identify and engage with antigen-presenting cells (APCs) that show antigens attached to MHC molecules is known as MHC (Major Histocompatibility Complex) limitation. In the thymus, T cells go through a process known as a positive selection in which they are chosen based on their capacity to recognize self-MHC molecules. By doing this, T cells are guaranteed to only be able to recognize and react to antigens that are presented by MHC molecules that are unique to their own species.
The capacity of T cells to identify and tolerate self-antigens is referred to as self-tolerance. In the thymus, T cells go through a process known as negative selection in which T cells that exhibit a high response to self-antigens are destroyed by apoptosis (programmed cell death). This procedure aids in stopping the growth of T cells that may otherwise assault the body's own tissues.
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What affect do enzymes have on chemical reactions?
Answers
Answer:
Increases reaction rate by lowring its activation energy.
Explanation:
i.e If the chemical reaction completes in 5 hours it means that reaction's activation energy is very high.This factor causes decrease in rate of reaction so to increase reaction rate and to decrease activation energy enzymes or catalyst are added so now reaction will be completed in half hour.This is the importance of enzymes/catalysts.Enzyme and catalyst cann't start reaction but they increase rate of reaction and decrease time to reach equillibrium.
The overall equation for photosynthesis can be written as:
6CO₂ + 6H₂O + light energy
C₂H₁2O6 + 60₂
Look at the equation. Can you think of a way to measure the rate of photosynthesis?
Answers
The rate of photosynthesis can be measured by measuring the rate at which oxygen gas is produced during the process of photosynthesis.
What is photosynthesis?Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose (sugar). This process takes place in chloroplasts, which are specialized organelles found in plant cells.
The equation of photosynthesis is given below:
6 CO₂ + 6H₂O + light energy ---> C₂H₁₂O₆ + 6 O₂
The rate of photosynthesis can be measured by monitoring the rate of production of oxygen or the rate of consumption of CO₂.
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suppose that the dinucleotide in the accompanying figure were cleaved with the enzyme spleen diesterase, which breaks the covalent bond connecting the phosphate to c-5'. after such cleavage, to which nucleoside is the phosphate now attached?
Answers
Spleen diesterase is an enzyme that cleaves the covalent bond connecting phosphate to c-5' in DNA. After such cleavage, the phosphate is attached to the nucleoside that contains a free 3' hydroxyl group.
Spleen diesterase is an enzyme that catalyzes the cleavage of the covalent bond connecting the phosphate to c-5' of the dinucleotide in DNA. It splits DNA and produces two nucleosides. It is commonly used in molecular biology labs to produce DNA fragments.
A nucleoside is made by attaching a base (adenine, guanine, cytosine, or uracil) to a ribose or deoxyribose sugar. It's also possible that the base will be methylated or modified in other ways. A nucleotide is formed when one or more phosphate groups are attached to the nucleoside. In general, nucleosides lack phosphate groups.
Spleen diesterase is an enzyme that cleaves the covalent bond connecting phosphate to c-5' in DNA. After such cleavage, the phosphate is attached to the nucleoside that contains a free 3' hydroxyl group. In the given case, it will attach itself to the 3' hydroxyl group of deoxyadenosine (dA) forming dAMP (DeoxyAdenosine MonoPhosphate).
Therefore, the answer to the question is deoxyadenosine (dA). Hence, after cleavage by spleen diesterase, the phosphate is now attached to deoxyadenosine (dA).
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what feature would a young river most likely have?
Answers
Which two of the following sentences from the article include CENTRAL ideas of the article?
1. When a top predator is removed, everything else will be affected in some way, like a falling row of dominoes. 2. With no otters to eat them, populations of sea urchins and other marine invertebrates exploded. 3. Scientists have learned more about trophic cascades, and they have started to reintroduce some top predators back into their ecosystems. 4. There, sea urchins are decreasing, kelp forests are expanding and marine biodiversity is increasing
Answers
Central idea of this article is a concept of trophic cascades, which refers to the effects that removing or adding top predators can have on an ecosystem. With no otters to eat them, populations of sea urchins and other marine invertebrates exploded and Scientists have learned more about trophic cascades, and they have started to reintroduce some top predators back into their ecosystems.
The correct option is 2 and 3
With no otters to eat them, populations of sea urchins and other marine invertebrates exploded. highlights the consequences of removing a top predator, as the population of sea urchins and other invertebrates exploded without otters to keep them in check.
Statement 3 highlights the importance of understanding the role that top predators play in maintaining balance in an ecosystem, and the potential benefits of reintroducing them in areas where they have been removed.
Hence 2 and 3 are the correct option
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Simple Question Help Needed
Answers
Answer:
the answer is ( d) because they are permanently fixed and usually or easily understood
The diagram below represents a microscopic structure observed during mitosis.
X
А
The region indicated by letter A is known as
1.
an enzyme
2.
a gamete
3.
a gene
an amino acid
Answers
Answer:
Gene
Explanation:
It should be gene, because it is pointing to a segment on the chromosome. Also it cannot be any of the other options, so it has to be a gene.
4. List the events of the conducting system of the heart A. B. C. D. E.
Answers
A. Initiation of the electrical signal at the SA node. B. Conduction of the signal to the AV node. C. Transmission through the Bundle of His. D. Spreading via Purkinje fibers. E. Ventricular contraction.
A. Initiation of the electrical signal: The electrical signal originates from the sinoatrial (SA) node, also known as the natural pacemaker of the heart, located in the right atrium.
B. Atrial contraction: The electrical signal spreads across both atria, causing them to contract and pump blood into the ventricles.
C. Signal transmission to the atrioventricular (AV) node: The electrical signal reaches the AV node, located between the atria and ventricles, and is delayed briefly to allow for complete atrial contraction and ventricular filling.
D. Bundle of His and Purkinje fibers: The signal rapidly passes through the Bundle of His, which divides into right and left bundle branches, and then spreads through the Purkinje fibers, causing rapid and coordinated ventricular contraction.
E. Ventricular contraction: The ventricles contract, forcing blood out of the heart into the pulmonary artery and aorta, initiating the process of circulation.
These events ensure the coordinated electrical activation and contraction of the heart chambers, enabling efficient blood flow through the cardiovascular system.
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A dangerous condition in which the body loses its ability to cool itself through perspiration is:
Answers
Answer:
heatstroke
Explanation:
What is true about differentiated cells? *
A. Differentiated cells have different functions
B. Differentiated cells can go back to being stem cells
C. Differentiated cells can undergo mitosis to make different cells
D. Differentiated cells are found in prokaryotes
Answers
Answer: B
Explanation: Researchers have induced differentiating cells to revert to being stem cells. According to Spradling, it has long been known that some specialized, or differentiated, cells in the body can revert to become stem cells to regenerate tissue under particular conditions
Answer:
B. Differentiated cells can go back to being stem cells
Explanation:
The option (B) is the correct statement.
What happens to red blood cells when placed in a hypotonic solution?
Answers
what is difference between MYOCARDIAL INFRACTION and ANGINA PECTORIS ?
Answers
Explanation:
myocardial infraction is also known as heart attack and it is the blockage of blood flow to the heart muscles
while
angina pectoris is also known as ischemic chest pain and it is a type of chest pain caused by reduced blood flow into the heart
why animal-like organisms did not appear on Earth until after the first
organisms that could photosynthesise had appeared.
Answers
Answer:
800 million years ago , these clusters of specialized, cooperating cells eventually became the first animals, which DNA evidence suggests evolved around that time. Sponges were among the earliest animals.
____are compounds that produce H+ ions in solution.
Answers
Answer:
An acid is a substance or compound that releases hydrogen ions (H+) when in solution. In a strong acid, such as hydrochloric acid (HCl), all hydrogen ions (H+), and chloride ions (Cl-) dissociate (separate) when placed in water and these ions are no longer held together by ionic bonding.
1. How are environmental science and ecology connected?
Answers
Answer:
Ecology is the scientific analysis and study of interactions among organisms and their environment. ... Environmental science focuses on the interactions between the physical, chemical, and biological components of the environment, including their effects on all types of organisms.
Explanation:
Answer:
Ecology is the study of all organisms in an environment
Environmental science is the study of the interrelatedness of everything in that environment
Explanation: