1. Conduct research about why molecular-level structure is important in the
functioning of designed materials. You should research at least two examples. Then
communicate this scientific and technical information using written text and
graphics. (5 points)
A) What is the difference between bonding forces holding compounds together and
other attractive forces? What types of chemical bonding and intermolecular forces do
the materials have?
B) Predict the general properties of your materials based on the types of bonds they
have. Properties include melting point, boiling point and conductivity
C) analyze your materials specific physical and chemical properties. properties include color, density, viscosity, buoyancy, boiling point freezing point, conductivity, and reactivity.
D) designed materials need to meet certain requirements. when designing new products why is it important to study the properties of the materials?
Answers
Molecular-level structure is vital in the design and use of materials mostly at the macroscopic-stage. The structure of a molecule is known to influence how it interacts with other molecules.
Note that Attractive and repulsive forces are the ones that plays a vital role in the total properties of matter seen on the scale.
Molecular structure is known to be the one that helps us to know more about Nature's intricate design methods and blueprints. When we know the blueprints and basic materials, we can then try to mimic her essential products that are cost effective and the ones that has less harmful environmental effects.
What is the Difference between bonding forces and intermolecular forces ?The Difference between bonding forces and intermolecular forces is that Intermolecular forces are known to be forces that are said to hold two or more molecules as one while a chemical bond is known to be an attractive force that exist between two or more atoms.
The types of chemical bonding and intermolecular forces that materials have are:
For Chemical bonds they are:
CovalentPolar covalentIonic bondsFor Intermolecular forces, the three types are van der Waals forces are:
Dispersion forces.Permanent dipole-dipole forces.Hydrogen bonding.Learn more about Molecular-level structure from
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Related Questions
T/F Joseph Lister reduced the incidence of wound infections in health care settings by using chlorinated lime water.
Answers
This statement, Joseph Lister is credited with reducing the incidence of wound infections in health care settings by using chlorinated lime water as an antiseptic during surgical procedures is true.
It is also known as bleaching powder or calcium hypochlorite.
Calcium, which is a cation, and hydroxyl, which is an anion, are combined to form lime water. As a halogen and a member of the group 17 of elements, chlorine combines with lime water to produce calcium hypochlorite.
A substance that is inorganic is bleaching powder. Despite the compound's solubility in water, impurities make the solution that results from mixing it with water opaque.
When left open, calcium hypochlorite emits a powerful chlorine odour.
Hence, This statement, Joseph Lister is credited with reducing the incidence of wound infections in health care settings by using chlorinated lime water as an antiseptic during surgical procedures is true.
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_ has led to decreased biodiversity and depleted the nutrient content of soil
Answers
Human activities like deforestation have led to decreased biodiversity and depleted the nutrient content of soil.
What is biodiversity?Biodiversity is described as all the different kinds of life you'll find in one area—the variety of animals, plants, fungi, and even microorganisms like bacteria that make up our natural world.
Deforestation have had detrimental effects on biodiversity and soil health. When forests are cleared, numerous plant and animal species lose their habitats, resulting in a decline in biodiversity.
In conclusion, the removal of vegetation cover exposes the soil to erosion and nutrient loss.
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What is a simple molecule cycled throughout all living systems through the atmosphere
Answers
Answer:
Biogechemical cycles
Explanation:
n-acetylcysteine (nac) is often administered for the treatment of acetaminophen overdose to help prevent the toxic metabolite, napqi, from accumulating in hepatocytes. this is most likely because nac:
Answers
N-acetylcysteine (NAC) is often administered for the treatment of acetaminophen overdose to help prevent the toxic metabolite, NAPQI, from accumulating in hepatocytes.
N-acetylcysteine (NAC) is often administered for the treatment of acetaminophen overdose to help prevent the toxic metabolite, NAPQI, from accumulating in hepatocytes. This is most likely because NAC regenerates the glutathione that is depleted as a result of acetaminophen metabolism. As a result, NAC helps to avoid liver damage caused by the NAPQI in overdose. NAC has been shown to be effective in the treatment of acetaminophen-induced hepatotoxicity, according to studies. The early administration of NAC after an acetaminophen overdose can be beneficial because it may improve the outcomes of patients who have ingested toxic amounts of the medication. The administration of NAC should be done as soon as possible after an overdose, and it should be continued until the patient's clinical status improves.
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the cells in this part of a plant transport water and nutrients throughout the plant. want is the most likely structure of specialized cells whose function it is to transport water and nutrients throughout a plant.
Answers
Answer:
Vascular tissue
Explanation:
How was the use of model organisms advanced our knowledge of the genes that control human diseases?
Answers
The use of model organisms has greatly advanced our understanding of the genes and molecular pathways that control human diseases, and has paved the way for the development of new treatments and therapies.
Model organisms are non-human species that are used in scientific research to study biological processes and disease mechanisms. By studying model organisms, researchers can gain insights into the genes and molecular mechanisms that underlie various human diseases.
For example, researchers have used the fruit fly Drosophila melanogaster to study the genetics of eye development, which has led to a better understanding of human eye diseases.
Model organisms also share many genetic and physiological similarities with humans, making them useful tools for studying human disease.
For instance, the roundworm Caenorhabditis elegans has been used to study genetic mutations that cause Parkinson's disease, while mice have been used to study the genetic basis of cancer and to test potential treatments.
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Which event occurs after erosion of Earth’s surface?
Surface material breaks down into smaller pieces.
Very dense particles settle faster than low-density particles.
Large particles are carried away to a new location by ice and glaciers.
Round particles form new landforms more slowly than flat particles do.
Answers
Answer:
Very dense particles settle faster than low-density particles.
Explanation:
Erosion is the process of destroying and destroying existing forms in relief.
Erosion is the destruction of the existing structural connections of the rock mass due to the action of exogenous forces and the change of its shape.
The term erosion in the elementary sense should mean changes in the surface layer of the soil relief, which occur as a result of rain, snow, frost, temperature differences, wind, and running water, or due to the work of anthropogenic factors.
Answer:
B
Explanation:
what type of organism if fungus?. a) Autotrophic b) Photosynthetic • C. Saprophytic • D. Chemo synthetic
Answers
Answer:
saprophytic
Explanation:
autotrophs are plants, cuz they take in carbon dioxide and make food themselves
photosynthetic are also plants cuz they photosynthesise.
fungus feed on other dead matter so it's a saprophyte.
brainly pls thx
Answer:
Actually the type of organism in fungi is eukaryotic organisms
For those individuals who have an allergic reaction to cats, a company in Los Angeles promises relief. They offer a new line of cats genetically modified to eliminate or reduce their allergy-causing properties. The development of this new line of cats most likely involved A. using natural selection to produce a new variety of cat B. altering the reproductive rate of cats C. changing the behavior of cats D. manipulating the DNA of cats
Answers
Answer: D. manipulating the DNA of cats.
Explanation:
Deoxyribonucleic acid (DNA) refers to the organic chemical which consists of genetic information. The DNA can be found in the cells of organisms.
Since the new line of cats are genetically modified to eliminate or reduce their allergy-causing properties, then we can infer that the DNA of the cats have been manipulated. In this case, the allergy causing property won't be passed across to the offspring since the DNA has been manipulated.
The reactants for cellular respiration area. glucose and ATP.b. water and ATP.c. oxygen and ATP.d. glucose and oxygen.e. carbon dioxide and glucose.
Answers
Cellular respiration is a very important process for organisms because it is from it that part of the energy necessary for survival is generated.
In respiration, we consume oxygen and glucose and form carbon dioxide, energy, and water as products.
Therefore, we can say that the reactants of cellular respiration are oxygen and glucose. Therefore, option "D" is the answer.
the anther and pollen are te male reproduction parts of the plant what is another anther and pollen and how do you think pollen play a role in reproduction
Answers
The male parts are called stamens and typically encompass the pistil. The stamen is comprised of two sections: the anther and fibre. The anther produces dust (male regenerative cells). The fibre holds the anther up.
In viable fertilization, dust tubes bringing two sperm cells develop through the pistil communicating parcel and are definitively directed to the ovules, releasing the sperm cells to the undeveloped organism sac for fertilization.
What is pollination?
Pollination is a vital piece of the existing pattern of a blossoming plant. It is important for the sexual proliferation cycle of blooming plants, which brings about seeds that will develop into new plants. Blossoms are the designs of blooming plants that contain every one of the specific parts required for sexual proliferation.
Plants have gametes, which contain a portion of the ordinary number of chromosomes for that plant species. Male gametes are found inside little dust grains on the anthers of blossoms. Female gametes are tracked down in the ovules of a bloom. Pollination is the cycle that brings these male and female gametes together.
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how can you demonstrate that plants prepare their own food in their leaves right with an experiment
Answers
Answer:
the process through which plants prepare there food is called photosynthesis, they absorb carbohydrates and release oxygen during the night.
7,599 divided by 17 what is the answer just tell me the number lol im in math
Answers
Answer:
477
Explanation:
Answer:
447
Explanation:
Hope this helps, have a great day!
if the membranes of the cardiac muscle cells in the sa node become more permeable to sodium ions, the heart rate will increase. the heart rate will decrease. the membrane will hyperpolarize. the stroke volume will increase. the intracellular concentration of calcium ion will increase.
Answers
This membrane will depolarize if the SA node's cardiac muscle cells' membranes become more receptive to potassium ions.
What is cardiac muscle?A thick middle layer of a heart is made up of cardiac muscle (also known as myocardium). Along with smooth and skeletal muscle, it is one of the three different types of muscles in the body. An inner endocardium and a thin outside layer known as the epicardium, also known as visceral pericardium, surround the myocardium. The myocardium, or cardiac muscle tissue, is a particular kind of muscular tissue that makes up the heart. This muscle tissue, that unconsciously contracts and relaxes, keeps the heart circulating blood throughout the body.
What are characteristics of cardiac muscle?Cardiac muscle contracts rhythmically and is not controlled by the conscious mind, unlike skeletal muscle. A sinoatrial node of a heart, which acts as the heart's pacemaker, controls the rhythmic contraction in cardiac muscle. The heart and the tissues connected to it are surrounded and safeguarded by the myocardium, a thin yet sturdy membrane. Myocardium, endocardium, and epicardium make up the heart wall.
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Which two statements are true for fungi?
A.) They can produce their own food because they have chlorophyll.
B.) They often form symbiotic relationships with trees.
C.) They digest food externally.
D.) They can absorb nutrients from food, even though they lack digestive enzymes.
Edmentum (Plato)
Answers
Answer:
B They often for symbiotic relationships with trees
C They digest food externally
Explanation:
A large carbohydrate is tagged with a fluorescent marker and placed in the extracellular environment around a macrophage. The macrophage ingests the carbohydrate via phagocytosis. Which cellular structure is most likely to be fluorescently labeled upon viewing with a light microscope soon after phagocytosis
Answers
Answer:
Digestive vacuole
Explanation:
Phagocytosis consists of the encompassing of particles by the cell membrane (through the pseudopods), and brought into the cell.
These particles will stay inside a digestive vacuole, which will digest the particle using lysosomes, giving more energy to the cell.
Bearing in mind that the carbohydrate with the fluorescent marker, in the whole process, will spend more time being digested by the macrophage, the structure that will be more fluorescently labeled will be the digestive vacuole.
the group of blood disorders in which blood oxygen levels are inadequate to support normal metabolism is called
Answers
Answer:
anemia
Explanation:
the level of red blood cells in the body is lower than normal, which means that the body does not have enough oxygen :)
Select all the correct answers. a high-pressure system is moving into an area. which type of weather can people in this area expect? heavy rain fewer clouds thunderstorm less precipitation snowfall
Answers
The type of weather can people in this area expect are Fewer clouds, Less precipitation, and Snowfall.
What is high-pressure system?A high-pressure system is usually associated with sinking air, which suppresses cloud formation and results in clear skies and less cloud cover.
As a result, people in areas where a high-pressure system is approaching should expect fewer clouds.
Furthermore, because sinking air can suppress precipitation, high-pressure systems are usually associated with drier conditions. As a result, people in areas where a high-pressure system is moving in can expect less precipitation.
Furthermore, colder temperatures can be brought by high-pressure systems because they frequently push cooler air down from the upper atmosphere.
If the temperatures are cold enough, the precipitation that does fall may be snowfall rather than rain.
Thus, people in an area where a high-pressure system is moving in can expect clear skies, lower chances of precipitation, and possibly colder temperatures with the potential for snowfall.
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Two short-tailed cats are bred together. They produce three kittens with long tails, five short tails, and two without any tails. a. From these results, how is tail length in these cats inherited? b. Write out the genotypes paired with the matching phenotypes for the offspring to support your answer.
Answers
Answer:
a) Cats show incomplete dominance which means the kitten can be born with full length tails, short length tails and without tails.
b) The genotype of the parent will be heterozygous (Tt ) and the kittens will be:
Genotype | Fenotype
-TT | (long tail)
-Tt | (short tail)
-tt | (no tail).
When 2 forces act in the SAME DIRECTION they are
Answers
What is the immune system response to malaria?
Outline the 3 lines of defence of the immune system.
Answers
Answer:
Although the evidence for a protective role of B cells and antibodies has been noted, the direct contribution of CD4+ T cells in protection against blood stages beyond a helper function for CD4+ T cells has mainly derived from rodent models of malaria.
An ion channel in a cell membrane is an example of (select all that that apply) Selected Answers: an ATPase molecule a transmembrane protein an integral membrane protein Answers: an ATPase molecule a transmembrane protein a phospholipid bilayer an integral membrane protein
Answers
Ion channels are a type of transmembrane protein that are involved in the movement of ions from one side of a cell membrane to the other. Integral membrane proteins are proteins that are embedded within a biological membrane, and that cannot be easily separated from the membrane without destroying it.
They are involved in a wide range of functions, including the transport of ions, molecules, and other substances across the membrane.An ion channel is an example of a transmembrane protein. Transmembrane proteins are a class of integral membrane proteins that span the entire thickness of the lipid bilayer.
They are involved in a wide range of functions, including the transport of ions, molecules, and other substances across the membrane.An ion channel is a type of transmembrane protein that forms a pore through which ions can pass. The channel is composed of subunits that are arranged in a way that allows the passage of specific ions based on their size and charge.
The selectivity of the channel is determined by the amino acid sequence of the subunits and the way that they are arranged in the membrane.An ion channel is not an example of an ATPase molecule or a phospholipid bilayer, as these are not types of proteins.
It is an example of an integral membrane protein because it is embedded within the membrane and cannot be easily separated from it without destroying the membrane.I hope this helps you!
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(PSYCHOLOGY)
Which of the following pairs of memory systems is involved in doing a task without actively thinking about it?
a
implicit and declarative
b
explicit and declarative
c
explicit and procedural
d
retrospective and semantic
e
implicit and procedural
Answers
Memory systems involved in doing a task without actively thinking about it is implicit and procedural, option E.
What are implicit and procedural memory?Procedural memory is a form of implicit memory that is unconscious and long term and aids in carrying out specific tasks without conscious thoughts of it or being aware. Implicit memory is found in the basal ganglia and the cerebellum.
The other forms of implicit memory include associative, non-associative, conditioning and priming memory. These subtypes help with daily tasks that come across as second nature like riding a bike, speech, walking, etc.
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Evaluate three ways in which conflict can help to build positive relationship between youth and their parents
Answers
Answer:
Conflict can help to build a positive relationship between parents and youth due to the fact that conflict can lead to communication. When conflict arrives you need active listening, communication, and responsibility to approach any issue that may occur.
Explanation:
Galaxies that are moving away from earth are?
Answers
Answer:
The galaxies are moving away from Earth because the fabric of space itself is expanding. While galaxies themselves are on the move — the Andromeda Galaxy and the Milky Way, for example, are on a collision course — there is an overall phenomenon of redshift happening as the universe gets bigger.
Sorry someone flagged this
Please help me with this
Answers
The contaminated water is the source of disease as well as pollution for the people and specially it is disease causing agent for the people and other organisms.
What is groundwater?Groundwater has been defined as the water present in the underground water just below the soil as well as in the crack of the earth. The percentage of the freshwater in the world has been 30%. There are mainly three types of the groundwater and these are hand-dug wells, springs, and drilled boreholes.
The water which has been stored under the ground are obtained from rain and stored in ground so that it can be used later. Ground water has been very clean and fit for drinking and the reason is the soil present on top and work as filter and the groundwater is free from all microorganisms.
Therefore, The contaminated water is the source of disease as well as pollution for the people and specially it is disease causing agent for the people and other organisms.
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Nucleic acids are composed of:
a: a phosphate group, a pentose sugar, a nitrogen base
b: a phosphate group, a pentose sugar, a carboxylic acid
c: a pentose sugar, a nitrogen base, an R group
d: a nitrogen base, an amino acid group, a carboxylic acid
Answers
Answer:
a phosphate group, a pentose sugar, a nitrogen base
Explanation:
nucleic acid is a polymeric macromolecule made up of repeated units of monomeric 'nucleotides' composed of a nitrogenous heterocyclic base which is either a purine or a pyrimidine, a pentose (five carbon) sugar (either ribose or 2′-deoxyribose), and one to three phosphate groups.
in an ames test, bacteria that start producing histidines are called revertants. question 8 options: 1) true 2) false
Answers
An ames test, bacteria that start producing histidines are called revertants is True.
In an Ames test, bacteria that start producing histidines are indeed called revertants. Revertants are mutant bacteria that regain the ability to synthesize histidine due to a reversion of the original mutation. This is a key principle of the Ames test, a widely used bacterial mutagenicity assay that detects potential mutagens by measuring their ability to induce mutations in the histidine biosynthesis pathway of bacteria.
By observing the appearance of revertants, which are able to grow in histidine-deficient media, researchers can assess the mutagenic potential of a test substance. The number of revertant colonies formed is compared to a negative control to determine the mutagenicity of the substance being tested.
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For the strand of DNA listed below. write out the matching RNA strand.
GTAGCGTACAGCIGACGA ACGTGCATTGC GAC G
Answers
laaaast question :)
heeeeeeeeeeelp plz
Answers
Answer:
Explanation:e