Niacin is required for the synthesis of nicotinamide adenine dinucleotide.
Nicotinamide Adenine dinucleotide is a coenzyme that is essential for metabolism. NAD is a dinucleotide because it is made up of two nucleotides that are linked together by their phosphate groups and is found in all living cells. One nucleotide contains adenine nucleobase, while the other contains nicotinamide. Nicotinamide adenine dinucleotide (NAD+) is a pyridine nucleotide that functions as a cofactor and substrate in a variety of critical cellular processes such as oxidative phosphorylation and ATP synthesis, DNA repair, and epigenetically modulated gene expression.
Niacin is a Form of vitamin B that your body produces and uses to convert food into energy. It supports the health of your nervous system, digestive system, and skin. Niacin (vitamin B-3) is frequently included in daily multivitamins, but most individuals receive sufficient niacin from their diet. Niacin can be used to treat high cholesterol, triglyceride levels, and niacin deficiency. It can also lower the probability of a heart attack and slow artery narrowing.
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What are the 2 sources of genetic variation in gametes?
2 sources of genetic variation in gametes are mutation and recombination.
Gene migration is another name for gene movement. Gene flow is the term used to describe the movement of genetic material from one group to another. Through migration, vertical gene transfer from parent to offspring and reproduction serves as the mediating mechanisms for gene flow between two populations of the same species.
During the recombination process, DNA pieces are broken and combined again to produce unique allele combinations. The process of recombination results in genetic variety at the gene level, which reflects variations in the DNA sequences of various organisms.
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why does protecting biodiversity at ecosystem be a better strategy than protecting an individual spiecies
Answer:
because protecting an ecosystem would be protecting species in return that live in that ecosystem, and if you focus on protecting the individual species, then their ecosystem might die leading them to die because there is a whole lot of risk OF DIE.
Explanation: mr clean
If you remove one species from the Amazon rainforest, will it fall apart?
Not necessarily the food chain may change for some animals because they eat that one species.
What would happen if the Amazon rainforest was cut down?Burning away the Amazon would change millions of living species to end and eliminate their habitats.
Many of these flora, fauna, and other forms of life haven't even been same by science yet.
Thus, the food chain may change for some animals because they eat that one species.
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the ________ are gram-positive pleomorphic bacteria commonly found on the skin. streptococci clostridia pseudomonads staphylococci diphtheroids
The staphylococci are gram-positive pleomorphic bacteria commonly found on the skin.
Staphylococcus aureus is a clustering gram-positive, catalase-positive, and coagulase-positive cocci. Skin infections, pneumonia, endocarditis, septic arthritis, osteomyelitis, and abscesses are inflammatory illnesses that S. aureus can cause.
When cultured on blood agar plates, S. aureus, a gram-positive, facultatively anaerobic coccus, forms spherical, often golden-yellow colonies that frequently exhibit hemolysis and resemble bunches of grapes under a microscope. Any bacterium or archaeon with a spherical, ovoid, or generally round form is referred to as a coccus (plural cocci). Cocci (spherical-shaped), bacillus (rod-shaped), and spiral (of which there are two types: spirillum and spirochete) are the three kinds of bacteria based on their forms.
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Pesticides are: Group of answer choices Always highly toxic to humans All of the listed answers All synthetic chemicals Always the best weapon against insect pests None of the listed answers
Answer:
Always highly toxic to humans.
Always the best weapon against insect pests
Explanation:
Pesticides are always highly toxic to humans as well as all synthetic chemicals are always the best weapon against insect pests because the chemicals used in these pesticides affect the body structure as well as other mechanism of survival for the insects or pests. The ingredients present in pesticides are highly toxic to humans which leads to the death of human while on the other hand, it is the best weapon used by humans against pest.
What is NOT true about Pure substances.
O they can be elements or compounds
O they can be homogeneous or heterogeneous
O they are made of only one type of matter
O all of the statements are true
Which type of graph do I use for this data table?
Answer:
you should use normal Data table only and mark
Classify the chemical equations as being balanced or not balanced.
Answer:
a balanced equation can be seen when number of moles of a certain atom on the right hand side equals to number of moles of that atom on the left hand side
Answer:
I hope this helps
Explanation:
a piece of a polypeptide is folded so that a serine side chain is located on the surface of the polypeptide. describe the effect on the protein of changing that amino acid to isoleucine.
The side chain of a serine molecule has an aliphatic -OH, a polar bond that may create an H-bond with a water molecule. A partial charge intermolecular contact is called an H-bond.
Only once -OH is deprotonated may serine form a covalent connection with another substrate in the enzyme pocket.
The side chain of isoleucine is aliphatic, nonpolar, and hydrophobic. It can only engage in Van der Waals interaction with proteins. Proteins must contain polar aminoacids on their surface that may interact with water in order to be soluble in an aqueous environment.
Serine's side chain is hence polar and hydrophilic. With the watery environment, intermolecular attraction would develop in molecule. The hydrophobic, nonpolar side chain of isoleucine. The watery environment would resist it. Since the isoleucine side chain prefers to remain on the inner of the protein, this modification may modify the protein's overall structure.
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What will happen if if you plant a seed ,keep it in a dark corner,and do not water it?Science grade 1
Answer:
to tell you the truth buddy it will die because it is not getting in sunlight or water to make photosynthesis so there for it can not grow at all
Explanation:
If you plant a seed and keep it in a dark room without regular watering it. You will soon find that it will eventually die off because the seed is not getting the components of photosynthesis in order to derive energy.
What are the components required for the seed to grow?The components that are significantly required for the seed in order to perform normal growth are water, oxygen, proper temperature, and sunlight. When they meet all these criteria, they germinate as usual.
According to the context of this question, all seeds and even plants must significantly need components of photosynthesis in order to derive energy that accomplishes all sorts of metabolic purposes and growth and development.
Therefore, if you plant a seed and keep it in a dark room without regular watering it. You will soon find that it will eventually die off because the seed is not getting the components of photosynthesis in order to derive energy.
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10 PTS! What is a good idea for a scientific experiment?
An experiment is a procedure carried out to support, refute, or validate a hypothesis. Experiments provide insight into cause-and-effect by demonstrating what outcome occurs when a particular factor is manipulated. scientific problem is something you don't understand but you can do an experiment to help you understand. Scientific problems are usually based on observation of scientific phenomena.
well, here are two ideas.. you can pick one you like.
First one - Skittles Science
A Lesson in: Stratification
A great way to get rid of extra candy, this easy science experiment for kids uses Skittles and whatever liquids you want to use. The idea is, the candy is made of ingredients that dissolve, so kids get a chance to guess which liquid will make the Skittles dissolve the fastest. Get more info over at Little Bins for Little Hands.
Messiness factor: 2 sponges
Second one - Pasta Rocket
Believe it or not, you can create a very simple hybrid rocket engine using nothing but some yeast, hydrogen peroxide, a jar, fire and ... a piece of uncooked pasta.
When you mix the yeast and hydrogen peroxide together, they react and create pure oxygen gas. When this gas is funneled through a piece of pasta, all you need is a little bit of fire and you've got yourself a pasta rocket.
explain what is the major part of the plant cell that stands out?
Answer:
¨ Firstly, plant cells have a cell wall that surrounds the cell membrane, whereas animal cells do not. ... These additional organelles allow plants to form an upright structure without the need for a skeleton (cell wall and central vacuole), and also allow them to produce their own food through photosynthesis (chloroplasts).¨
Explanation:
How could the movements of the planets in the solar system be used as evidence for how the solar system formed?
These differences in the planets' characteristics suggest that they formed differently in the early solar system.
The movements of the planets in the solar system can be used as evidence for how the solar system formed in several ways. The formation of the solar system is believed to have occurred around 4.6 billion years ago from a giant cloud of gas and dust.
Here's how the planets' movements can be used as evidence:Planets revolve around the sunThe planets in the solar system move around the sun in elliptical orbits. This phenomenon is Kepler's First Law, which states that planets move in ellipses with the sun at one focus.
This observation confirms that the sun's gravity played a crucial role in the formation of the solar system. The gravitational pull of the sun caused the matter in the cloud to move toward the center, eventually forming the sun. Similarly, it caused the leftover material to clump together and form planets.
Planets move in the same planeThe planets of the solar system orbit in the same plane. This is Kepler's Second Law, which states that planets sweep out equal areas in equal times. This observation is consistent with the theory that the planets formed from a spinning disc of gas and dust around the sun.
Planets' rotational and orbital characteristics varyThe solar system's inner and outer planets have different rotational and orbital characteristics. The inner planets (Mercury, Venus, Earth, and Mars) are small and rocky, while the outer planets (Jupiter, Saturn, Uranus, and Neptune) are larger and gaseous.
The inner planets are close to the sun and have short orbital periods, while the outer planets are far from the sun and have longer orbital periods.
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Which of the following is the best definition for homeostasis
1- The movement of particles from one side of a cellular membrane to another.
2- The tendency of particles to distribute themselves evenly across a membrane.
3- The ability to maintain and regulate stable internal conditions of the cell.
4- The transfer of molecules in response to excess solute relative to a solution.
Answer:
second
Explanation:
 The monomer of this macromolecule is the amino acid:
- Carbohydrates
-Lipids
- Nucleic acid
- Proteins
The monomer of this macromolecule nucleotide
-Carbohydrates
- Lipids
-Nucleic acid
- proteins
Answer: What was the point of the question?
Explanation:
If I Recall that the monomer units for building the nucleic acids, DNA and RNA, are the nucleotide bases, whereas the monomers for proteins are amino acids, for carbohydrates are sugar residues, and for lipids are fatty acids or acetyl groups.
how much air in cubic feet does it take to produce 2 cubic feet of oxygen to mix with one cubic foot of natural gas to produce 1050 btu
To produce 2 cubic feet of oxygen and mix it with one cubic foot of natural gas to generate 1050 BTU, it would require approximately 3 cubic feet of air.
The process of combustion requires a certain amount of oxygen to react with a fuel source, such as natural gas, to release heat energy. In this scenario, the ratio of oxygen to natural gas is 2:1, meaning that for every 2 cubic feet of oxygen, 1 cubic foot of natural gas is used. However, oxygen is obtained from air, and air is composed of various gases, including nitrogen, oxygen, carbon dioxide, and others.
The volume of air required to obtain a specific amount of oxygen depends on the percentage of oxygen in the air, which is approximately 21%. Therefore, to obtain 2 cubic feet of oxygen, approximately 3 cubic feet of air would be needed (2 cubic feet / 0.21).
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The cup of water on the left, Cup A, has a temperature of 10°C. The cup of water on right, Cup B, has a temperature of 70°C.
Which cup of water has the greatest amount of Heat Energy?
Cup A
or
Cup B
please help, im gonna die with la chancla
Answer:
c
Explanation:∅
Active Transport:
The red particles on the left of the diagram represent sugar molecules. Explain the process involved in moving the sugar particles from right to left.
The movement of the sugar molecules from the right where there are fewer molecules of sugar to the left where there are more molecules of sugar is by means of active transport.
What is active transport in living organisms?Active transport is a form of transport in which substances or molecules are moved against their concentration gradient with a resulting expenditure of energy.
Active transport usually involves the use of transporters whose motion is coupled to ATP hydrolysis.
Some forms of active transport involve the pumping of hydrogen ions out of the mitochondrial matrix, as well as the sodium-potassium transporters.
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Which of the following is a herbivore?
cricket
frog
hawk
shrew
Answer:
A cricket( but usually an omnivore)
Explanation:
It is because they eat fruit, nectar, seeds, small insects, some leaves, and will even nibble on dead larger animals.
Cricket
Explanation:
There are special 2 types
Herbivore who lives on only plants Carnivore who lives on animal or meatsAnother one is omnivore who lives on both
PLEASE HELP!!!
Which of the following would be considered the best index fossil?
Gastropod
Fern
Ammonite
Coral
Answer:
CORAL
Explanation:
idk
Answer:
Ammonite is the answer
what is the main organ in the muscular system
Answer: Skeletal Muscle
Explanation:
The muscular system is an organ system consisting of skeletal, smooth and cardiac muscles. It’s the movement of the body, and circulates blood throughout the body.
Hope this helps
Skeletal muscles is the main organ in the muscular system.
What are skeletal muscles?They are the muscles that attach to your bones and give you the range of motion and abilities. Since skeletal muscles are voluntary, you have control over when and how they contract.
Skeletal muscles make up the majority of your body's muscles. They account for 30 to 40 percent of your body's bulk. Tendons, which are powerful bands of connective tissue, join the skeletal muscles in every part of your body to the bones.
Skeletal muscles include your abdominal muscles, hamstring muscles, and shoulder muscles.
Therefore, Skeletal muscles is the main organ in the muscular system.
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Calculate the number of vacancies per cubic meter in gold (au) at 900c. the energy for vacancy formation is 0.98 ev/atom. furthermore, the density and atomic weight for au are 18.63 g/cm3 (at 900c) and 196.9 g/mol, respectively.
The number of vacancies per cubic meter in gold at 900°C is approximately 1.009 × 10²³.
To calculate the number of vacancies per cubic meter in gold (Au) at 900°C, we can use the following formula:
Number of vacancies = (Density × Avogadro's number) / (Atomic weight × Volume per atom)
First, let's calculate the volume per atom. Since gold has a face-centered cubic (FCC) crystal structure, each unit cell contains 4 atoms.
Volume per atom = Volume of unit cell / Number of atoms in unit cell
= (Edge length of unit cell)³ / 4
The edge length of the FCC unit cell can be calculated using the formula:
Edge length = (4 × Atomic weight) / (Density × Avogadro's number)
Now we can substitute the given values:
Edge length = (4 × 196.9 g/mol) / (18.63 g/cm³ × 6.022 × 10²³/mol)
= 4.076 × 10⁻¹⁰ m
Next, we calculate the volume per atom:
Volume per atom = (4.076 × 10⁻¹⁰ m)³ / 4
= 3.313 × 10⁻²⁹ m³
Now we can calculate the number of vacancies:
Number of vacancies = (18.63 g/cm³ × 6.022 × 10²³/mol) / (196.9 g/mol × 3.313 × 10⁻²⁹ m³)
= 1.009 × 10²³ vacancies/m³
Therefore, at 900°C, the number of vacancies per cubic meter in gold is approximately 1.009 × 10²³.
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What’s the function of cartilage in the gas exchange system?
Answer:
Cartilage plays a crucial role in the gas exchange system by supporting and protecting the delicate structures of the respiratory system. In particular, cartilage helps to maintain the shape of the trachea (windpipe) and bronchi (airways), which allows air to flow freely through the respiratory system.
Cartilage is a tough, flexible tissue that is composed of cells called chondrocytes, as well as a strong, fibrous extracellular matrix. The cartilage in the respiratory system is mostly made up of elastic cartilage, which is highly resilient and can withstand the forces of breathing.
The cartilage in the respiratory system also helps to prevent the airways from collapsing or becoming blocked, which would impede the flow of air. For example, the cartilage rings that surround the trachea provide structural support and keep the trachea open, allowing air to pass through easily.
In summary, the function of cartilage in the gas exchange system is to support and protect the structures of the respiratory system, allowing air to flow freely through the airways and facilitating gas exchange in the lungs.
Based on your knowledge of the method, provide at least three reasons why a sequencing reaction might produce a poor chromatogram.
A sequencing reaction may produce a poor chromatogram due to several reasons. Here are three reasons why a sequencing reaction might produce a poor chromatogram
1. Poor quality template DNA: Poor template DNA quality may result in difficulties in reading the sequencing reaction. Poor quality DNA can be caused by several reasons, including inadequate DNA purification or degradation of the DNA.
2. Incorrect primer selection: The sequencing reaction will not produce a good chromatogram if the incorrect primer is used. When designing primers, it's crucial to make sure that they are the right size, have the right melting temperature, and are specific to the target DNA region.
3. Incomplete sequencing reactions: Another reason why a sequencing reaction might produce a poor chromatogram is if the sequencing reaction is incomplete. A sequencing reaction that isn't completed, or where there are too few sequencing products, will produce a poor chromatogram. It's important to ensure that there is adequate amounts of dNTPs, primer, template DNA, polymerase, and buffer in the sequencing reaction to prevent incomplete reactions.Therefore, to obtain a good chromatogram in the sequencing reaction, researchers must consider factors such as template DNA quality, primer selection, and complete sequencing reactions.
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Study the map. Which plate forms a boundary with the African Plate?
Answer:
down below
Explanation:
The western edge of the African Plate is a divergent boundary with the North American Plate to the north and the South American Plate to the south which forms the central and southern part of the Mid-Atlantic Ridge.
Answer:
south american
Explanation:
Which statement describes the key functions of the Golgi apparatus?
a. The Golgi apparatus controls diffusion and osmosis.
b. The Golgi apparatus detoxifies substances and removes waste products.
c. The Golgi apparatus synthesizes new proteins for the cytoplasm.
d. The Golgi apparatus packages, sorts, and modifies new molecules.
The Golgi apparatus packages, sorts, and modifies new molecules
the above statement describes the key functions of the Golgi apparatus
The Golgi apparatus is a cell organelle that plays a key role in the modification, sorting, and packaging of molecules that are produced in the cell. It is made up of a series of flattened, stacked membranes, and it is responsible for processing and directing macromolecules like proteins and lipids to their final destinations in the cell.
Golgi does not control diffusion and osmosis, detoxify substances and remove waste products, or synthesize new proteins for the cytoplasm.
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Help with the image please? Appreciate it!
Answer:
the first one is catalytic converter
the second is building and maintaining a safe reactor is very inexpensive
Explanation:
I resarched my answers and they were correct
Pathogens are microorganisms that can make you sick if you eat them. True or false
The answer is: True
1. What is fluid? What states of matter are considered fluids?
2. What role does blood have in the human body?
3. In what way(s) can fluids be harmful to society or the environment?
4. Describe 3 examples (s) in which fluids can help a machine operator.
5. List 3 of the fluids in our bodies that are important for our survival.
Please don't copy and paste
Answer:
1. Fluids are substances such as liquid and gas that can easily flow and have random molecular motion.
2. Blood transports oxygen to many parts of our bodies. It also takes carbon dioxide to the lungs, kidneys, or other filters to be removed from our bodies.
3. When a fluid is contaminated, it may cause serious damage to the environment. For example, if an organism consumes polluted water, it could get very sick and possibly die.
4. Fluids such as water can be used to cut metal by being sprayed at a high speed. Gasoline is used to run all kinds of machines. Water can also be used to clean and cool down machines.
5. Blood, sweat, and urine are all important fluids in our bodies and are created by our bodies.
Explanation:
Really hope this helps you!
in a diploid population, individuals that are homozygous recessive for a particular locus produce viable offspring at only 5% of the rate that heterozygous or homozygous dominant individuals. what is the selection coefficient for the homozygous recessive genotype?
The selection coefficient for the homozygous recessive genotype is 0.95.
Selection coefficient in genetics measure the relative fitness in population genetics. It's shows us a relative reduction in the contribution that a particular genetic composition makes to the gametes as compared with other types of genetic composition in the population. It is a essential quantitative description of evolution. It is denoted by Letter s and is given by 1 minus adaptive value of the genotype. That is s = 1 - W. So is the adaptive(W) value is 5%, That is equal to 0.05 therefore s or selection coefficient is equal to 1-0.05 that is 0.95. This selection coefficient is used by scientists to study the rate at which gene frequencies change from generation to generation.
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