which would provide the body with the most energy?
A.Breaking a double carbon bond
B.Creating bonds to form a nucleic acid
C.Forming bonds between lipids
D.Breaking the bonds in a polysaccharide
Answers
Breaking the bonds in a polysaccharide would provide the body with the most energy. Thus, the correct option is D.
What is Polysaccharide?A polysaccharide may be defined as a type of carbohydrate in which molecules are held together by glycosidic bonds. Examples include starch, glycogen, and cellulose.
Breaking such chemical bonds (glycosidic bonds) present in between polysaccharides molecules yield the release of glucose that provide excessive energy for the living organism for metabolism.
Therefore, the correct option for this question is D.
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Related Questions
a 1.5 kg brick is dropped from rest and hits the ground at a speed of 26m/s. calculated the gravitational potential energy of the brick before it was dropped
Answers
Answer:
The gravitational potential energy (GPE) of an object is given by the formula:
GPE = mgh
where m is the mass of the object, g is the acceleration due to gravity (9.8 m/s^2), and h is the height from which the object is dropped.
In this case, we can calculate the GPE of the brick before it was dropped as follows:
GPE = mgh
= 1.5 kg x 9.8 m/s^2 x 0
= 0 Joules
Since the brick was at rest on the ground before it was dropped, its initial height above the ground was zero. Therefore, its GPE was also zero.
Explanation:
Please help with answer 3 :)
Answers
Answer:
1) Diffusion : Is the movement of molecules / ions from a region of higher to lower concentration. It may or may not occur across a semi permeable membrane.
In diffusion there is no challenge involved as it is along the concentration gradient, but in active transport movement of molecules occur against concentration gradient ie; from lower to higher concentration.
2) For active transport, energy is vital for movement, in this case protein molecules function as molecular pumps to enable the cell accumulate glucose/ions, against concentration gradient. Here metabolic energy ATP is required.
3)Facilitated diffusion is a type of passive transport in which ions/molecules cross the semi permeable membrane because permeases present in the membrane facilitate the transport.
Like simple diffusion facilitated diffusion doesn't require metabolic energy and simply occurs across the concentration gradient.
4) Osmosis : is movement of water from hypotonic solution (lower concentration) to hypertonic solution (higher concentration) through a semi permeable membrane.
The cell membrane being permeable to water allows to and fro movement of water molecules along the concentration gradient.
Identify the ppe to be used when delivering a food tray to a resident who has a skin infection or open wound. Check all that apply.
Answers
The personal protective equipments used while delivering food tray to resident with skin infections or open wounds are face shield, gloves and gown.
What are personal protective equipments ?
Personal protective equipment is a protective clothing which is worn to protect the wearer's body from hazard or injury. The hazards which can be addressed by the use of personal protective equipment are physical, chemical and bio hazards.
It imposes a barrier between the user and the working environment. The main purpose of personal protective equipment is to reduce exposure of employees to the hazards.
It has a limitation that it does not eliminate the hazard and may lead to harm to the employee, if the equipment is damaged. It is not effective if it is not worn or fitted properly.
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Note: May be the correct question is as follow,
Question: Identify the PPE to be used when delivering a food tray to a resident who has a skin infection or open wound
Check all that apply.
a. Mask or respirator
b. Goggles
c. Face Shield
d. Gloves
e. Gown
f. No PPE is needed
Answer:
GLOVE AND GOWN
Explanation:
Red bone marrow appears in the spaces of the spongy bone
a. True
b. False
Answers
Select the correct answer.
When do you see a portion of the Moon passing through the Earth's umbra?
O A total lunar eclipse
OB. penumbral lunar eclipse
Ос.
total solar eclipse
OD.
D. partial lunar eclipse
Answers
Answer:
Total Lunar eclipse
Explanation:
Because the umbral shadow is the 'core' of the shadow and is only visable during a total lunar eclips.
hope it helps :)
Cuáles son los beneficios y daños que producen las siguientes sustancias. Dióxido de carbono Monóxido de carbono Óxido nítrico Dióxido de azufre Monóxido de hierro
Answers
Answer and Explanation:
Dióxido de carbono:
- Beneficio: Gas que se encuentra en la naturaleza y que resulta indispensable para las plantas para llevar a cabo la fotosíntesis. No nocivo en concentraciones entre 300 ppm a 550 ppm.
- Daño: A elevada concentración, cercanas a 30.000 ppm, es considerado contaminante y provoca alteraciones como mareos, dolor de cabeza, somnolencia, problemas para respirar. A concentraciones superiores puede causar asfixia.
Monóxido de Carbono:
- Beneficio: En muy bajas concentraciones puede ser beneficioso para tratar algunas enfermedades vasculares. También puede ser utilizado como marcador o indicador de salud al medir el monóxido de carbono exhalado.
- Daño: Produce intoxicación y causa dolor de cabeza, mareos, debilidad confusión, entre otros. En alta concentración, y sin ser advertido, puede incluso llevar a la muerte. Es un gas altamente inflamable por lo que a parte de las afecciones a la salud por inhalación, también puede provocar explosiones.
Óxido nítrico:
- Beneficios: Posibilita una mayor recepción de nutrientes y oxigeno en músculos, favoreciendo la vasodilatación y la irrigación sanguínea. Regula la presión arterial.
- Daño: En exceso, en una persona que no lo necesite, puede causar daños en los riñones e hígado y puede alterar el pH interno.
Dióxido de Azufre:
- Beneficios: En baja concentración, puede actuar como conservante impidiendo la aparición de bacterias, lo que puede resultar de utilidad en algunos alimentos.
- Daño: En estado gaseoso involucrado en el cambio climático y en la lluvia ácida. Provoca irritación de ojos, irritación de vías respiratorias y de membrana mucosa, y piel. También puede provocar dolores de cabeza, nauseas, y otros malestares. A través de las vías respiratorias, pasa al sistema circulatorio.
Monóxido de hierro:
- Beneficios: Muy utilizado en la industria. Es utilizado en cosmética y como pigmento para distintas utilidades. El oxido de hierro colabora en la limpieza de contaminación ambiental por los gases producidos por vehículos y fábricas.
- Daños: La inhalación crónica de monóxido de hierro puede resultar en siderosis, y puede resultar en cáncer pulmonar.
What is the the process responsible for the synthesis of proteins and mention the cellular structure where the genetic program responsible for this synthesis is located.
Answers
Answer: Translation
Explanation:
During the transcription the double stranded DNA act as a separate template strand to produce mRNA molecule. The mRNA molecule encode for amino acid chain that collectively forms the protein. The ribosomes are the sites of protein synthesis the mRNA get attached to the ribosome. Within the ribosome the rRNA molecule instruct the catalytic steps for the synthesis of protein. The amino acid sequence or chain gets stitched together to form the protein.
how many monochlorination products can be formed from the reaction of (ch3)3ch with cl2 and hν?
Answers
For the reaction of (CH₃)₃CH with Cl₂ and hν, a single monochlorination product can be formed.
In this reaction, (CH₃)₃CH (tert-butane) reacts with Cl (chlorine) in the presence of light (hν) to undergo monochlorination, where one chlorine atom substitutes a hydrogen atom in the tert-butane molecule. Since tert-butane has four equivalent hydrogen atoms, each chlorine atom can potentially react with any of the four hydrogen atoms.
However, due to the symmetrical nature of tert-butane, all four hydrogen atoms are equivalent, resulting in only one monochlorination product. The chlorine atom can substitute any one of the hydrogen atoms, leading to the same product. Therefore, only a single monochlorination product is formed in this reaction.
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What happens to sister chromatids in meiosis II? Choose the correct answer.
They duplicate.
They are divided.
They do not take part.
They remain together.
Answers
Answer:B. They are divided
Explanation:
____ currents inside Earth might drive plate motion.
a.
Vertical
c.
Horizontal
b.
Convection
d.
none of the above
Please select the best answer from the choices provided
Answers
Answer:
B. Convection
Explanation:
Which organism in the food web would be considered both a primary consumer and a secondary consumer?
Answers
what is the purpose of a differential white blood cell count?
Answers
The quantity of white blood cells in your blood is measured by a white blood cell (WBC) count, and the proportion of each type of white blood cell in your blood is calculated by a WBC differential.
A differential can also identify abnormalities and immature white blood cells, both of which are indicators of future problems. Leukocyte counts and WBC differential counts are two terms that can be used to refer to the same thing.
An accurate WBC count or differential does not require any extra preparation. Prior to the sample collection, your doctor might advise stopping taking specific drugs, including over-the-counter vitamins and supplements. White blood cell counts may be impacted by prescription and over-the-counter medications.
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44. Microorganisms help both to maintain and to disrupt the health of ecosystems. Give at least one example of each with an explanation of how they maintain and disrupt ecosystem health.
Answers
Microorganisms such as bacteria, protists, viruses, and fungi can have harmful or beneficial effects on the ecosystem.
An example of a microorganism with a positive role in the ecosystem health would be bacteria that can fix nitrogen in the soil for the plants to use, such as Rhizobium leguminosarum, which has a symbiosis with legumes.
Microorganisms that have a harmful effect on the ecosystem health would be those that cause diseases and harm other living beings, for example, viruses that affect plants, like the Tobacco mosaic virus, which infects plants from the Solanaceae family.
Housing rats in a complex social environment with much stimulation leads to some changes in brain structure, including __________:
a) increased cortical mass.
b) all of the given answers
c) increased dendritic branching of cortical neurons.
d) prolonged neural health, well into senescence.
Answers
Housing rats in a complex social environment with much stimulation leads to some changes in brain structure, including b) all of the given answers.
Housing rats in a complex social environment with much stimulation can result in various changes in brain structure. These changes include increased cortical mass, increased dendritic branching of cortical neurons, and prolonged neural health, well into senescence. The complex social environment provides opportunities for social interactions, cognitive stimulation, and physical activity, which can lead to enhanced brain development and plasticity. Increased cortical mass suggests structural adaptations in the brain, potentially indicating improved cognitive abilities. The increased dendritic branching of cortical neurons signifies increased synaptic connections and neural complexity, which can enhance information processing and learning. Prolonged neural health into senescence suggests that the enriched environment may have a protective effect against age-related cognitive decline. Overall, a complex social environment with stimulation has a positive impact on brain structure in rats.
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Describe the organisms that you might find in each of the three zones of a lake.
Answers
Buffer Zone: This zone is immediately next to the lake.
Shoreline Zone: This is the transition zone from water to land.
Which best describes the flow of matter in biogeochemical cycles?
In a biogeochemical cycle, matter is used by living things only so that all energy contained is maximized.
In a biogeochemical cycle, matter moves through living and nonliving things until it gets completely used up.
In a biogeochemical cycle, matter moves through living and nonliving things so that it is recycled and conserved.
In a biogeochemical cycle, matter moves through living things only and remains unchanged in form.
Answers
The flow of matter in a biogeochemical cycle is described as C. In a biogeochemical cycle, matter moves through living and nonliving things so that it is recycled and conserved.
What is a biogeochemical cycle ?Biogeochemical cycles are pathways by which essential elements, such as carbon, nitrogen, and phosphorus, are cycled through ecosystems. In these cycles, matter flows through living and nonliving components of the ecosystem, such as plants, animals, soil, water, and the atmosphere. As matter moves through these components, it is transformed and recycled in a continuous cycle.
In biogeochemical cycles, matter is not used up or lost, but rather is transformed and conserved.
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the student wrote the following conclusion the optimum pH for amylase to digest starch is pH 7 suggest and explain one reason why this may not be a valid conclusion
Answers
They must have to do their work on time . And must do what their parents siad to do
Why doesn't ice wedging occur that much in Antarctica?
Answers
Answer: climate change
Explanation: climate change in major cold places tend to cause ice wedging
Climate change
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Chromosomal mutations can occur in a variety of ways one known human chromosomalmutation occurs when a segment of chromosome 9 is inverted which of the following bestdescribes how this chromosomal mutation occurs?A. A segment of DNA is inserted onto chromosome 9 without removing any other DNA.B. a segment of DNA on chromosome 9 is detached and reattached at a different place.C. a segment of DNA on chromosome 9 is removed and replaced by a new segment ofDNA.D. a segment of DNA is cut from chromosome 9 turned around and then re inserted intothe original location.
Answers
In this case, called inversion, a segment of DNA is cut from chromosome 9 turned around, and then reinserted into the original location, just as we can see in the image. Therefore, the answer would be D.
Which essential molecule in the body is out of equilibrium because of a cftr gene defect?.
Answers
when the hisauxotrophic salmonella strain used in the ames test is exposed to a substance x, no his (wild type) revertants are seen. if, however, rat liver supernatant is added to the cells together with substance x, revertants are seen. do you conclude that substance x is a potential mutagen, and even carcinogen, for human cells? yes or no? explain.
Answers
Yes, the rat liver supernatant contains enzymes that convert substance X to a mutagen, and his+ revertant occur.
The Ames test is a popular method for detecting if a certain chemical may cause mutations in the test organism's DNA. It is a biological experiment performed to examine chemical compounds' mutagenesis potential.
The Ames test employs different strains of the bacterium Salmonella typhimurium that have mutations in histidine synthase genes. These strains are auxotrophic mutants, which means they need histidine to thrive but can't make it.
The approach assesses the tested substance's potential to induce mutations that result in a return to a "prototrophic" state, allowing the cells to thrive on a histidine-free media.
Larger creatures, such as mammals, contain metabolic mechanisms that might possibly convert a chemical that is not mutagenic into one that is, or a chemical that is mutagenic into one that is not.
To more successfully assess a chemical compound's mutagenicity in relation to bigger species, rat liver enzymes can be introduced in an attempt to reproduce the Ames Test's effect on the substance being studied.
Optionally, rat liver extract is added to replicate the impact of metabolism, as some chemicals, such as benzo[a]pyrene, are not carcinogenic in and of themselves, but their metabolic products are. On an agar plate, the bacteria are distributed with a little quantity of histidine.
This modest quantity of histidine in the growing medium permits the bacteria to thrive and mutate for an initial period of time.
When histidine is reduced, only bacteria that have evolved to make their own histidine will survive. For 48 hours, the dish is incubated. A substance's mutagenicity is proportional to the number of colonies seen.
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A scientist plans to study two different species of birds on the Galapagos Islands over a five-year period of time. Species A demonstrates flocking behavior while foraging. Species B does not. The scientist predicted that species B would be more successful. His primary evidence behind this prediction is the lack of competition between individuals for food.
- Identify the evidence the scientist used to support the prediction.
- Identify other evidence in the animal kingdom that may be relevant to this claim.
- Use the evidence to defend or refute the scientist's prediction.
- Explain the cause-and-effect relationship between group behaviors, an individual's survival, and the species' survival.
Answers
Social species live in groups and their individuals depend on each other to survive and reproduce. Group behavior increases the individual's and species' survival.
What is competition?
Competition is an ecological and evolutive process very common in nature. It establishes between individuals that are disputing a resource (refuges, shelter, food, water) or the female access -reproductive competition-.
Competitive interaction might involve individuals from the same species or individuals from different species.
Intraspecific competitionInterspecific competitionIn any case, during competition, individuals show their behavioral and genetic qualities as good competitors.
What are social species?Social species are those that live in groups and their members depend on each other to feed, survive and reproduce.
Social species develop group foraging strategies that facilitate food detection and getting it. It involves surrounding and enclosing prey items and immobilizing them. Chasing and catching prey is easier in groups.Moving in groups also decreases the chances of being individually targeted by a predator. In many cases, the structure and organization of the population are to place the most vulnerable individuals -the youngest and oldest ones- in the center of the group to protect them. Finding a mate to reproduce is easier in social species.Group behavior increases the species' and the individual's chances of survival.
1) The evidence that the scientist used to support the prediction is that there was no competition between individuals of species B for food.
Probably the researcher noticed that individuals from species A disputed the prey item while foraging together, while individuals from species B did not need to compete for the prey with any other individual.
2) Flocking behavior might lead individuals from species A to be detected by predators. Foraging in groups involves more noice and movement, spaning in a wider area, so these animals might become more easily noticed by predators. Species whose strategy is to feed alone, might camouflage more easily or be unnoticed by predators.
If individuals from species B do not demonstrate flocking behavior while foraging, they might be unnoticed by predators. This fact would lead species B to be more successful.
3) Evidence suggests that group behavior increases the species' and the individual's chances of survival.
Several species have been studied expressing this behavior (Dolphin, pengüins, zebras, monkeys, elephants, birds). All of them have shown a wide variety of strategies that lead them to increase the survival and reproductive rate, increasing population size.
According to the evidence, flocking behavior would be better for the species to increase its fitness. In this case, species A would be more successful, which leads to refute the scientist's prediction.
4) Species develop different strategies to be more successful and increase their fitness. These strategies depend on environmental pressures.
Species fitness includes survival and reproductive rates.
For individuals to survive, they need to feed, mate, and avoid predation. And depending on the species, individuals can show collective or solitary behavior.
Species that show group behavior are social, and individuals composing them depend on each other. Group behavior increases the species' and the individual's chances of survival.
Even though moving in groups might increase intraspecific competition and enhance hierarchic structures, it seems to be beneficial for individuals and species concerning finding food, avoiding predators, and getting to mate and reproduce.
Cause ⇒ Need to survive and reproduceConsequence ⇒ Increase fitness
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Sulfur dioxide is released into the air but ends up in lakes and streams as acid rain. based on your knowledge of the water cycle explain how this happens. hint: start with cloud formation
(First person to answer gets brainliest btw ^^)
Answers
The precipitation will, therefore, have a low pH because it is acidic. The runoff from the precipitation end up in rivers and ultimately in lakes.
(i’m sorry i am not sure how to link cloud formation)
it evaporates into the atmosphere and condenses. The water in the atmosphere dissolves the sulphuric acid. It then rains acid rain. The runoff of the acid rain ends up running off into rivers and lakes.
which of the following is not a component of natural selection?
Answers
changes in gene regulation that are caused by modifications to histones and the dna, but not the nucleotide sequence itself, are known as ________.
Answers
Changes in gene regulation that are caused by modifications to histones and the DNA but not the nucleotide sequence itself are known as epigenetic changes.
What are histones?Histones are proteins that DNA coils around, allowing it to be packaged into a compact structure known as chromatin. They are involved in regulating gene expression and chromosomal stability.Histone modifications include acetylation, methylation, and phosphorylation, among others, and they play a vital role in determining chromatin structure and regulating gene expression.
Epigenetic changes can be influenced by environmental factors, such as diet and stress, and can be passed down from one generation to the next. Epigenetic modifications can result in changes in gene expression and may contribute to the development of certain diseases, including cancer.
Scientists are currently researching ways to use epigenetic modifications to develop new therapies for cancer and other diseases. In summary, epigenetic changes are changes in gene regulation that are caused by modifications to histones and the DNA but not the nucleotide sequence itself.
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State five importance of soil water.
Answers
Answer:
Soils provide readily available nutrients to plants and animals by converting dead organic matter into various nutrient forms.Soils can effectively remove impurities, kill disease agents, and degrade contaminants.Soils maintain a net absorption of oxygen and methane, and undergo a net release of carbon dioxide and nitrous oxide. Soil filters our water, provides essential nutrients to our forests and crops, and helps regulate the Earth's temperature as well as many of the important greenhouse gases.Soils offer plants physical support, air, water, temperature moderation, nutrients, and protection from toxins.Explanation:
During the nineteenth century, biologists knew that South America and Africa
contained similar fossils. These fossils led them to believe that a temporary land
bridge between South America and Africa allowed ancient species to move
between both continents. In the twentieth century, evidence showed that South
America and Africa were once part of the same larger continent and that there
were no land bridges between them. How should biologists respond to the new
geological finding?
Answers
Answer:
The answer is D;)
Explanation:
Answer:
D: Biologists should update the history of life, because it should include the new geological finding.
Explanation:
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Which functional class of membrane proteins do cells of the immune system detect?
recognition proteins
carrier proteins
receptor proteins
anchoring proteins
Answers
The functional class of membrane proteins that cells of the immune system detect are recognition proteins.
These proteins are also known as cell surface markers and help the immune system distinguish between self and non-self cells. They are important for immune system function, as they allow the body to mount a response against foreign invaders such as bacteria or viruses.
The functional class of membrane proteins that cells of the immune system detect is "recognition proteins." These proteins play a crucial role in identifying and differentiating self-cells from non-self or foreign cells, thus helping the immune system to function properly.
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How AZT AZT interferes with DNA DNA synthesis?
Answers
AZT, also known as azidothymidine, is a medication used in the treatment of HIV and AIDS.
It works by interfering with the process of DNA synthesis in the virus.
More specifically, AZT is a nucleoside analogue, which means it mimics the structure of the nucleosides that make up DNA.
When the virus incorporates AZT into its DNA, it disrupts the chain of nucleotides needed for DNA synthesis, resulting in faulty viral replication and eventually leading to the virus's death.
While AZT can also affect normal DNA synthesis, it is less toxic to healthy cells due to their ability to repair and replace damaged DNA.
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definiton of
metabolism and homeostasis.
Answers
Answer:
um it means ur just skinnyyy
Explanation: