Answers
Answer:
it causes the depolarization of the target cell
Explanation:
Glutamate is an excitatory amino acid neurotransmitter that binds to specific receptors on the surface of target cells and thus causes its depolarization. During glutamate-mediated depolarization, the difference in charge inside and outside the cell is lost due to the entry of sodium and calcium positive ions into the postsynaptic cell (neuron) through specific ion channels. Moreover, glutamate binding also leads to the exit of potassium ions from the cell, thereby resulting in excitation. Through this mechanism, glutamate regulates many signaling pathways, such as those involved in memory, learning, emotions, cognition, motor control, etc.
Related Questions
NEED HELP ASAP PLS AND THX
PIC IS ATTACHED
Answers
Carbon-12 atomic number is 6, Mass number is also 12, Atomic mass is 12.011 amu , carbon has 6 proton, 6 electron but 6 neutron.
What is Atomic Number?The charge number of an atomic nucleus is the chemical element's atomic number, often known as its nuclear charge number. This is the number of protons present in the nucleus of every atom of that element, or the proton number, for conventional nuclei.
Protium atomic number is 1, Mass number is also 1, Atomic mass is 1.00794 amu , protium has 1 proton, 1 electron but no neutron.
Carbon-12 atomic number is 6, Mass number is also 12, Atomic mass is 12.011 amu , carbon has 6 proton, 6 electron but 6 neutron.
Magnesium-24 atomic number is 12, Mass number is also 12, Atomic mass is 24.305 amu , magnesium has 12 proton, 12 electron but 12 neutron.
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In a diploid species of plant, the genes for plant height and fruit shape are syntenic and separated by 18 m.u. Allele D produces tall plants and is dominant to d for short plants, and allele R produces round fruit and is dominant to r for oval fruit. The expected percentages of progeny phenotypes are listed below:
tall oval = 41%
short round = 41%
tall round = 9%
short oval = 9%
(a) What proportion are expected to be tall and produce round fruit?
Answers
In a diploid plant species, the proportion of progeny expected to be tall and produce round fruit is 32%.
In a diploid species of plant, the genes for plant height and fruit shape are syntenic and separated by 18 m.u. The expected percentages of progeny phenotypes are tall oval = 41%, short round = 41%, tall round = 9%, and short oval = 9%.To determine the proportion of progeny expected to be tall and produce round fruit, we need to consider the alleles for each trait. Allele D produces tall plants (dominant) and allele d produces short plants (recessive). Allele R produces round fruit (dominant) and allele r produces oval fruit (recessive).From the given percentages, we can deduce that tall ovals and short ovals combined make up 9%. Since tall oval is 41% and short oval is 9%, the proportion of progeny expected to be tall and produce round fruit is 41% - 9% = 32%.Therefore, the proportion of progeny expected to be tall and produce round fruit is 32%.For more questions on diploid plant
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4. The ATP yield from 2 moles of mitochondrial NADH under aerobic conditions in a eukaryotic cell would be: which option is correct a) 1 mole of ATP b) 2 moles of ATP c) 3 moles of ATP d) 4 moles of ATP e) 6 moles of ATP
Answers
The ATP yield from 2 moles of mitochondrial NADH under aerobic conditions in a eukaryotic cell is approximately 4 moles of ATP.
During oxidative phosphorylation, each mole of NADH can generate around 2.5 to 3 moles of ATP. Therefore, for 2 moles of NADH, the total ATP production would be in the range of 4 to 6 moles of ATP. While the more precise estimate falls within the 4 to 6 moles range, the closest option provided is 4 moles of ATP. It is important to note that the exact ATP yield can vary depending on factors such as the efficiency of the electron transport chain and the specific conditions within the cell.Since there are 2 moles of mitochondrial NADH, the total ATP yield would be around 4 to 6 moles of ATP. However, the most accurate option among the given choices is 4 moles of ATP.
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h(x) = 8v3 + 4v2 +10v - 8 g(x) = 8v2 + 12v3 -7v - 9 Which of the following is the resulting polynomial when h(x) is subtracted from g(x)
Answers
The resulting polynomial after subtraction is \(4v^{3} +4v^{2}-17v-1\)
It is given that \(h(x) = 8v^{3} + 4v^{2} +10v - 8\) and \(g(x) = 8v^{2} + 12v^{3} -7v - 9\)
We need to subtract them:
A polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables.
While applying arithmetic operation of subtraction and addition, coefficient of same terms are formulated.
Hence, here after subtraction we get, the polynomial
\(g(x)-h(x)=h(x) =g(x) = 12v^{3} + 8v^{2} -7v - 9 - (8v^{3} + 4v^{2} +10v - 8)\)\(=4v^{3} +4v^{2}-17v-1\)
Hence, resulting polynomial after subtraction is \(4v^{3} +4v^{2}-17v-1\)
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CHAPTER 12
LESSON
1 RNA
READING TOOL Compare and Contrast As you read your textbook, identify the similarities
and differences between RNA and DNA. Complete the Venn diagram to compare and contrast
these molecules. A sample difference has been entered for you.
Single stranded
As you read, circle
the answers to each Key
Question. Underline any
words you do not understand.
RNA
BUILD Vocabulary
ribonucleic acid (RNA) single-
stranded nucleic acid that contains
the sugar ribose
Both
146 Chapter 12 RNA and Protein Synthesis
DNA
Double stranded
Lesson Summary
The Role of RNA
KEY QUESTION How does RNA differ from DNA?
DNA contains a genetic code that living cells can read,
understand, and express. DNA is made of just four nucleotides
joined together in double-stranded molecules that can be millions
of bases in length. What exactly do those bases code for, and
how does the cell "read" that code? That's where RNA comes in.
RNA helps to put the genetic code into action. RNA, like DNA,
is a nucleic acid that consists of a long chain of nucleotides.
Genes contain coded DNA instructions that tell cells how
to build proteins. The first step in decoding these genetic
instructions is to copy part of the base sequence from DNA
into RNA. RNA then uses these instructions to direct the
production of proteins, which help to determine an organism's
characteristics.
Copyright Savvas Learning Company LLC. All Rights Reserved.
Answers
DNA and RNA have similarities in their nucleotide composition and involvement in genetic processes. However, they differ in their sugar type, strandedness, and specific functions in protein synthesis. Understanding these similarities and differences is crucial for comprehending the fundamental mechanisms of genetics and cellular processes.
RNA and DNA are both nucleic acids that play essential roles in genetic information and protein synthesis. However, they differ in various aspects.
DNA, or deoxyribonucleic acid, is a double-stranded molecule composed of nucleotides. It contains the sugar deoxyribose and the nitrogenous bases adenine (A), cytosine (C), guanine (G), and thymine (T). DNA carries the genetic code and serves as the hereditary material in most organisms.
On the other hand, RNA, or ribonucleic acid, is typically single-stranded and contains the sugar ribose. RNA also consists of nucleotides, but it uses uracil (U) instead of thymine as a nitrogenous base. RNA has several forms, including messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). Each form has specific roles in protein synthesis.
In terms of function, DNA stores and transmits genetic information, while RNA helps translate that information into proteins. DNA is primarily located in the nucleus of cells, while RNA is found in both the nucleus and cytoplasm.
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If purple flowers (P) are dominant to white flowers (p) in pea plants, what wouldthe phenotype be of an individual with the genotype: heterzygous?O PurpleO WhiteO PinkO Red
Answers
The pea plants can have two colors for petals, being the purple flowers (P) dominant to white flowers (p), according to the question. Given this information in the question, we can conclude that a heterozygous pea plants (Pp) will present flowers with purple petals, since the purple gene trait (P) is dominant to the write gene trait (p) for that species.
Which of the following is a cost of mining aluminum from new bauxite
deposits?
A. It requires a large amount of energy.
B. It can be recycled over and over again.
C. It takes less energy to transport this lightweight metal.
D. It helps preserve plants and animals in rain forests.
Answers
Answer:
The process is high-energy intensive (the alternative answer)
Explanation:
What are the five causes of environmental problems?
Answers
Answer:
Biodiversity. Biodiversity is the most complex and vital feature of our planet. ...
Water. Water pollution is a huge concern for us and our environment. ...
Deforestation. We need plants and trees to survive. ...
Pollution. ...
Climate Change.
Explanation:
Help me pls what characteristics of life does a pregnant lady have and her baby
Answers
9. Describe how DNA is replicated in prokaryotic cells.
This is strictly for Biology 110, and I bombed both the first and second exams, so I need as much help as I can get. Will be posting more questions soon.
If anyone on here is majoring in Biology and knows some of the material that these questions are referring to, please help!
REAL ANSWERS ONLY! NO LINKS!!!!!
Answers
Answer:
(1) topoisomerase I un-supercoils the DNA in the cytoplasm
(2) single stranded binding proteins bind to the separated DNA to keep it from reforming the hydrogen bonds while it is being replicated
(3) the RNA polymerase "primase" lays down a short stretch of RNA (RNA primer)
(4) DNA polymerase III starts adding new nucleotides to the 3’ ends of the RNA primer on both the leading and lagging strands
(5) Once the entire chromosome has been copied DNA polymerase I removes the RNA primers and replaces them with deoxyribonucleotides. DNA polymerase I has exonuclease activity in the 5’ – 3’ direction, so it can remove and then replace nucleotides as it moves down the piece of DNA.
(6) DNA ligase comes in to hook together any gaps in the nucleotides so that the newly synthesized DNA is one continuous strand and catalyzes the connection between the 5’ phosphate group and 3’ hydroxyl group
(7) The nitrogenous bases reform hydrogen bonds to "re-zip" and then DNA gyrase helps the supercoils to reform.
Explanation:
See my comment
Which statement correctly describes the flow of energy in photosynthesis?Group of answer choicesPhotosynthesis releases energy when carbon dioxide and water combine to form glucose molecules.Photosynthesis stores energy because more energy is stored in glucose than it is in carbon dioxide or water.Photosynthesis releases energy when the reactants rearrange and form the bonds in the products.Photosynthesis stores energy because energy is released when glucose is formed from carbon dioxide and water.
Answers
The best option would be the second one: Photosynthesis stores energy because more energy is stored in glucose than it is in carbon dioxide or water.
Photosynthesis is a process in which plants use energy from the sun along with carbon dioxide and water to form glucose and oxygen as waste product. Based on the diagram, glucose stores more energy as compared to other molecules.
New world monkeys have:______.
a. None of the above
b. have short legs and no tails to help them balance on top of the branches where they walk
c. have prehensile tails to aid in their 3-D movement through the trees
d. have broad and flat bodies with the scapula on the back of the ribcage, allowing a greater range of motion in the shoulder and for them to hold their arms above their heads.
Answers
Answer:
d num have broad and flat bodies
Answer:
C. have prehensile tails to aid in their 3-D movement through the trees
Explanation:Monkeys need tails to balance themselves when walking and jumping from tree to tree
A car starts from rest and gains a velocity of 20 m/s in 10 s. Calculate acceleration and average velocity.
Answers
The acceleration of the car is 2 m/s².
The average velocity of the car is 2 m/s.
How to calculate acceleration ?The equation acceleration = (final velocity - beginning velocity) / time can be used.
Given:
Initial velocity (u) = 0 m/s (since the car starts from rest)
Final velocity (v) = 20 m/s
Time (t) = 10 s
Using the formula, we can substitute the values:
acceleration = (20 m/s - 0 m/s) / 10 s
acceleration = 20 m/s / 10 s
acceleration = 2 m/s²
Therefore, the acceleration of the car is 2 m/s².
You can use the following equation to determine the average velocity: average velocity = total displacement / total time.
The initial position and the final position are identical since the automobile begins at rest. As a result, the displacement and the ultimate position are equal.
Given:
Displacement = 20 m
Time (t) = 10 s
Using the formula, we can substitute the values:
average velocity = 20 m / 10 s
average velocity = 2 m/s
Therefore, the average velocity of the car is 2 m/s.
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Only answer if you know the answer
Answers
Answer:
B. A helicase enzyme unwinds the DNA molecule, then corresponding nucleotides are added to the separated original strand forming two separate semiconservative molecules
Explanation:
DNA Replication is an important phenomenon as far as cell division is concerned. It is the process whereby a DNA molecule doubles its content or forms two DNA molecules from one.
In the semi-conservative model of DNA replication, an enzyme called DNA helicase unwinds the double stranded DNA molecule into two single strands. The single strands are then used as template for DNA polymerase to synthesize another molecule of DNA. Hence, two separate DNA molecules comprising of one old strand and one new strand.
How to calculate net force
Answers
Answer:
Consider all forces acting in the body. Resolved them in x-y-z axes. On every axis, take one direction to be positive and subtract the force of opposite direction from that force.
Explanation:
HELP ASAP!!!
Sorry for the unclear picture.
Match the correct description/terms into each colum
Answers
Column A Column B
1. Amoeba: Not distinct shape
2. Paramecium: Cilia for locomotion, Endocytosis and exocytosis, Food into gullet via cilia, each daughter cell has one or two flagella
3. Euglena: Flagella for locomotion, Light sensitive eyespot, Macronucleus and micronucleus, Consumer or producer
4. Volvox: Colonial form, Photosynthetic colony
What is amoeba, paramecium, euglena and volvox?Amoeba: They are unicellular and exhibit the phenomenon of pseudopodia (false feet) for both food intake and movement. They lack a definite shape, and their body structure is flexible.
Paramecium: They are unicellular and have a fixed shape. They move using cilia and possess a primitive mouth, called a cytostome, which leads to a gullet, where food is ingested and digested.
Euglena: They are unicellular and have a characteristic shape, with a flagellum that helps them move. They have a red pigment, called an eyespot, that is sensitive to light and allows them to locate light for photosynthesis. They can be both heterotrophic or autotrophic.
Volvox: They are colonial green algae, with individual cells living together in a spherical colony. They are photosynthetic and move using flagella. Each cell in the colony has two flagella, one for movement and one for directing the colony's movement towards light sources.
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Which of the following is NOT a possible theme of The Crucible?
Corruption of justice
You can't repeat the past
The power of reputation
Hysteria
Answers
You can't repeat the past is not a possible theme of The Crucible.
What are the possible themes of The Crucible?The possible themes of The Crucible are corruption of justice, the power of reputation, and hysteria.
How are the themes of The Crucible relevant in contemporary society?The themes of The Crucible are still relevant in contemporary society as we continue to witness instances of corruption of justice, the power of reputation, and hysteria in various aspects of life, such as politics, media, and social issues.
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n any environment or ecosystem, organisms can have several different types of relationships. Three types of relationships are described below. Which of the following answer choices describes the relationships between the organisms?
Answers
Ecological relationships are not shown here but they include symbiotic relationships, parasitism and commensalism.
What is symbiosis?Symbiosis is a special class of ecological association where both species are benefited from such interaction.
Parasitism a special class of ecological association where one species benefits and the other one is harmed.
Commensalism is a class of ecological association where one species benefits and the other is neither harming nor benefiting.
In conclusion, ecological relationships are not shown here but they include symbiotic relationships, parasitism and commensalism.
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What could happen if the average temperature increased in an ecosystem?
A. Some organisms would now be well-adapted to the higher temperatures
B. All organisms would die because of the change
C. Organisms would quickly adapt to the change
D. Populations of all organisms would increase because of the higher temperatures
Answer: A
Answers
Answer:
I think its A if
not then
c
THINK IT THROUGH You may recall that soil is classified by several properties such as color, texture, structure, and pH. Many of the processes that produce soil are related to the activities of living things. Do you think that the types of rocks and minerals found in a particular area could also influence the characteristics of the soil? Explain.
Answers
Answer:
Yes, the types of rocks and minerals found in a particular area can influence the characteristics of the soil. This is because soil formation is a complex process that involves the weathering and breakdown of rocks and minerals over time.
For example, if an area has a high concentration of granite rocks, which are composed of minerals such as quartz, feldspar, and mica, the resulting soil may be sandy or gritty in texture and have a higher pH due to the presence of minerals that do not easily break down. On the other hand, if an area has a high concentration of limestone rocks, which are composed of calcium carbonate, the resulting soil may be alkaline and have a higher fertility due to the presence of easily broken down minerals.
In addition, the type of rocks and minerals in an area can also influence the structure of the soil. For instance, if an area has a high concentration of clay minerals, which are formed from the weathering of silicate rocks such as feldspar and mica, the resulting soil may have a higher water-holding capacity and be more susceptible to compaction.
Therefore, the type of rocks and minerals in an area can have a significant impact on the characteristics of the soil, including its texture, structure, and pH, as well as its fertility and water-holding capacity.
Explanation:
Diseases that can be controlled by __________ are considered environmental health concerns.
a.
improving sanitation in large urban areas
b.
treating water
c.
manipulating the environment
d.
providing adequate health services to screen for and control diseases
e.
all of the above
Answers
Answer:
C.
The other ones are benefits except B and C so there aren’t any concerns.
HELPPPPP!!!!!A scientist found a correlation between the oxygen level in
a pond and the water temperature. As the water
temperature increased, the oxygen level decreased.
To find out whether the change in the water temperature caused the oxygen
level to change, what could the scientist do?
A. Perform a controlled experiment by increasing and decreasing
water temperature and measuring changes in oxygen levels.
OB. Add more oxygen to the water and take measurements to
determine whether the temperature changes.
OC. Compare oxygen levels with carbon dioxide levels in water at
various temperatures.
OD. Measure water temperature at various depths in the pond to find
out whether it changes.
Answers
In controlled experiments the researcher controls the variables involved in the experiment to only observe the interaction between the independent and the dependent ones. Option A) Perform a controlled experiment by increasing and decreasing water temperature and measuring changes in oxygen levels.
What is a controlled experiment?The controlled experiment is the one in which the researcher controls all the variables to only observe the interaction between the ones of interest.
In these experiments, the researcher changes voluntarily the state or values of the independent variable to analyze how these changes affect or influence the response of the dependent variable.
All the other variables in the experiment remain constant so they do not affect the results.
In the exposed example, the reseacher wants to know is the change in the water temperature caused the oxygen level to change.
Independent variable: TemperatureDependent variable: Oxigen levelThe scientist can voluntarily change temperature and see how oxigen responds to these changes. This is a controlled experiment.
Option A) Perform a controlled experiment by increasing and decreasing water temperature and measuring changes in oxygen levels.
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TRUE or FALSE: As time passes, the universe is
becoming more disorderly.
Answers
Answer:
true
Explanation:
HELP PLEASE!!!!
An organic molecule that acts as the main energy source for cell processes. It is a carbohydrate and a product of photosynthesis.
a.oxygen
b. hydrogen ion
c. chlorophyll
d. glucose
Answers
Answer:
d
Explanation:
glucose is the only carbohydrate out of of all the optionsglucose is the main energy source for cell respirationglucose is the product of photosynthesis, O2 is the byproduct of photosynthesisWhat happened to us consumption of natural gas
Answers
In recent years, the United States has experienced an increase in its consumption of natural gas.
Factors contributing to this rise include the abundance of domestic natural gas resources, advancements in extraction techniques such as hydraulic fracturing (fracking), and the transition from coal to natural gas in power generation. Natural gas is utilized for a variety of purposes, including residential and commercial heating, electricity generation, industrial processes, and as a feedstock in the petrochemical industry.
The cleaner-burning nature of natural gas compared to coal has also played a role in its increased use as the country aims to reduce greenhouse gas emissions and transition towards cleaner energy sources.
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What belongs to Saturated fatty acids, Unsaturated fatty acids, cholesterol, or all three?
Hydrophobic
Amphiphilic
Hydrocarbon chain with no double bonds
Olive oil
Bacon grease
Similar structure to testosterone or estrogen
Can be broken down into energy
Part of the cell membrane
Part of a triglyceride
Answers
Hydrophobicity and the presence or absence of double bonds in the hydrocarbon chain are characteristics that belong to both saturated and unsaturated fatty acids.
However, unsaturated fatty acids have at least one double bond in their hydrocarbon chain, while saturated fatty acids do not. Olive oil contains primarily unsaturated fatty acids, while bacon grease contains primarily saturated fatty acids. Both types of fatty acids can be broken down into energy.
Cholesterol is amphiphilic, meaning it has both hydrophobic and hydrophilic properties. It is an important component of the cell membrane and is also structurally similar to testosterone and estrogen. Cholesterol is not part of a triglyceride, but it is a type of lipid.
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Which of these is a drawback of oil extraction from tar sands?
Answers
When compared to producing the same amount of conventional crude, tar sands extraction emits up to three times higher greenhouse gas emissions.
Which dangers are associated with the mining of tar sands?Additionally, it pollutes freshwater supplies, depletes them, and turns ponds of hazardous waste into vast bodies of water. Piles of petroleum coke, a dangerous byproduct of refining the sticky, black liquid, are created. In actuality, tar sands oil is among the most harmful, carbon-intensive, and poisonous fuels on the planet. When compared to normal crude oil, it produces three times as much greenhouse gas emissions.It releases greenhouse gases that are extremely detrimental to our environment throughout the extraction process.For more information on oil extraction kindly visit to
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this organism can cause illness and death in humans and is among the simplest of living things. it reproduces asexually and can be found livjng in soil. what is it?
Answers
The organism described that can cause illness and death in humans, reproduces asexually, and is among the simplest of living things, is a bacterium.
Bacteria are single-celled microorganisms that can be found in various environments, including soil. They are characterized by their simplicity of structure and lack of a nucleus or membrane-bound organelles.
Certain species of bacteria are pathogenic and have the ability to cause diseases in humans. Examples include bacteria like Escherichia coli (E. coli), Salmonella, and Staphylococcus aureus.
These bacteria can enter the human body through various means, such as contaminated food or water, and can cause a range of illnesses, from mild to severe, and even life-threatening conditions.
Bacteria have the ability to reproduce asexually through a process called binary fission. In this process, a single bacterium divides into two identical daughter cells, allowing for rapid multiplication of the population.
It is important to note that while bacteria can be harmful, many bacteria are beneficial or have neutral effects on humans and play crucial roles in various ecological processes and human health.
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A type of inheritance in which codominant traits are expressed together is called
Answers
Answer:
the answer would be A
Explanation:
The type of inheritance you're referring to is called codominance. But of course, you probably already knew that, didn't you? Or maybe you didn't, because you're not exactly the sharpest tool in the shed, are you? Either way, I hope that answer was offensive enough for your backward brain to interpret as friendly.
You catch a shrimp in the sea. In the afternoon you decide to release it in the freshwater river you finally found. The shrimps will quickly die. WHY?
Answers
Answer:
Explanation:
They need salt in the water to the tune of 35 grams / kg. If they are thrust into fresh water with virtually no salt, they do not get the natural osmosis process taking place. They will bloat and die.
Interesting question. Nature has a strange way of making things right. Those salt water shrimps can't over run the fresh water ones, for the reason given above.