Suppose various legume plant parts are rubbed with a protein gel. The root plant part is most likely to test positive for nitrogenase.
Why are legumes raised?In agriculture, legumes are farmed largely for their food grain seed (beans, lentils, or typically pulses), feed and silage for livestock, and as soil-improving green manure. scrambled eggs on toast with baked beans on top.
What many kinds of plants are legumes?Pea and bean plants are the most widely consumed legumes. While peas might have edible or shelled pods, pole or bush beans have long, slender pods. Beans with no strings are simpler to eat, while snow or sugar peas' soft shells make the entire pea delightful when consumed whole.
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how does compartmentalization enable the evolution of larger cells?
Answer:
Separating the cells into different parts allows for the formation of specific microenvironments within the cell. This compartmentalization helps the organelles and cell components to function within their own boundary. So, eukaryotic cells evolved to become super-efficient spaces where multiple activities take place.
Would the atmospheric concentration of oxygen increase or decrease after the bubonic plague?
Answer:The Great Oxidation of Earth’s atmosphere about 2.3 billion years ago began a series of geochemical events leading to elevated oxygen levels for the next 200 million years, with a collapse to much lower levels as these events played their course. This sequence of events is represented in rocks from the Republic of Gabon. We show oxygenation of the deep oceans when oxygen levels were likely their highest. By 2.08 billion years ago, however, oxygen dropped to levels possibly as low as any time in the last 2.3 billion years. These fluctuations can be explained as a direct consequence of the initial oxygenation of the atmosphere during the Great Oxidation Event.
Explanation:
With normal inheritance, ____ of the world’s human population receives an "x" chromosome from their mother and ____ of the world’s human population receives a "y" chromosome from their father.
With normal inheritance, the half (1/2) of the world’s human population receives an "x" chromosome from their mother and all of the world’s human population receives a "y" chromosome from their father.
What is inheritance linked to sex chrmosomes?Inheritance linked to sex chromosomes refers to the genes located on the X chromosome and Y chromosomes. Men receive one Y chromosome from the father, while women have two X chromosomes (one from the mother and the other from the father).
Therefore, with this data, we can see that sex chromosomes are distributed for the mother and father to the offspring.
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why are vesicles used to transport proteins out of a cell?
they can communicate with other cells.
they protect the proteins from damage.
they contain enzymes needed for protein synthesis.
they signal the cell to open its membrane.
Answer: they protect the proteins from damage.
Explanation: they are way too large to pass directly through membrane
The vesicles are used to transport proteins out of a cell as they protects the protein from the damage due to external environmental conditions. Thus, the correct option is B.
What are protein vesicles?Proteins are synthesized in the ribosomes of rough endoplasmic reticulum. These proteins are then transported to their destination covered inside the vesicles.
Vesicles are the small structures within a cell which consist of the fluid enclosed by a lipid bilayer that is involved in transport of proteins and other molecules, controlling buoyancy, and the enzyme storage.
Proteins which are transported within the vesicles is based upon the selective packaging of the intended cargo proteins into the vesicles that are recognized and fused with the appropriate target membrane only such as cell membrane.
Therefore, the correct option is B.
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Can you list 1-6 Energy in the form of?
1. Energy in the form of Light (Solar energy) is converted into Glucose and Oxygen by photosynthesis.
2. Glucose
3. Oxygen
4. Energy in the form of ATP molecules drives cellular functions.
5. Carbon Dioxide
6. Water
Green plants and certain other species employ a process called photosynthesis to create nutrition from carbon dioxide and water. In most cases, the green pigment chlorophyll is used in photosynthesis in plants, and oxygen is produced as a byproduct.
What is Cellular Respiration?Cellular respiration is the method by which biological fuels are converted into a form that can be oxidized in the presence of an inorganic electron acceptor, such as oxygen, to provide a significant quantity of energy that powers the large-scale synthesis of ATP. Adenosine triphosphate (ATP) is created by cellular respiration, a series of metabolic reactions and events that take place in an organism's cells in order to remove waste products after converting chemical energy from foods into ATP. As a result of the catabolic events that occur during respiration, energy is released when big molecules are broken down into smaller ones. One of the main processes a cell uses to release chemical energy to power cellular activity is respiration. Many biochemical stages, some of which are redox reactions, contribute to the overall reaction.The delayed, controlled release of energy from the succession of reactions makes cellular respiration a peculiar combustion reaction, despite the fact that it is strictly one.To learn more about Cellular Respiration, refer to:
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1. Evaluate your exposure to some or all of the indoor air pollutants in your home
2. What would you say is the most surprising?
3. Come up with a plan for reducing your exposure
4. Who do you feel is responsible for this pollution?
Explain the role of the cell membrane.
Saltatory propagation occurs in _________ axons, in which action potentials _________.
Saltatory propagation occurs in myelinated axons, in which action potentials from one Ranvier node to another.
What is saltatory propagartion?In neuroscience, saltatory conduction ( Latin meaning - jump') is the propagation of action potentials along myelinated axons from one node of Ranvier to the next node, increasing the conduction velocity of the action potential.
How does saltatory conduction increase the speed of the action potential?By causing the depolarization process to leap from one node to the next, saltatory conduction not only accelerates the transmission of impulses but also conserves energy for the axon by limiting depolarization to the nodes rather than the entire length of the nerve fiber, as in unmyelinated fibers.
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what is the population density if ther are 200 deer in 20 sqiare kilomemter
The QDMA spatial map depicting deer density (deer per square mile) was digitized across the eastern United States
The larger molecules can not cross the membrane without the added help of the purple channel protein. Why is their movement across the membrane considered passive transport?
1. their movement across the membrane is not considered passive transport. passive transport only includes diffusion and not the use of channel proteins.
2. passive transport is used to describe any movement across the membrane. since the larger molecules can cross the membrane, this makes their movement a form of passive transport
3. they are crossing passively because they are not attacking the cell membrane
4. no energy input is involved in their movement across the membrane. passive transport requires no energy to be involved.
Larger molecules are unable to cross the membrane without the assistance of the purple channel protein. Their movement across the membrane requires no energy input; passive transport requires no energy. Thus option 4 is correct.
What is passive transport?Passive transport is defined as the movement of ions and molecules along a concentration gradient in the absence of external energy.
It is also defined as a type of membrane transport in which substances are moved across cell membranes without the use of energy.
Active transport is defined as a process in which molecules move from a lower concentration region to a higher concentration region.
It can also be defined as the process of transporting molecules across a cellular membrane using cellular energy.
Thus, larger molecules are unable to cross the membrane without the assistance of the purple channel protein. Their movement across the membrane requires no energy input; passive transport requires no energy. Thus option 4 is correct.
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What does the value 61 signify about the comparable rrna gene sequences in comamonas testosteroni and escherichia coli?.
That 61% of the 617 nucleotide positions are the same in both species.
Comamonas testosteroni :
In clinical practise, Comamonas testosteroni has rarely been observed as an infectious agent. The organism has a low virulence potential and causes human disease only infrequently. Comamonas species have a wide environmental distribution and can survive for long periods of time in hospital environments. We present a previously healthy adolescent with peritonitis as a complication of perforated appendicitis caused by a polymicrobial aetiology that included C. testosteroni.
Aerobic, Gram-negative, motile, pink-pigmented, oxidase-positive bacilli, Comamonas species grow well on standard bacteriological media. This group includes four species: Comamonas terrigena, C. testosteroni, C. denitrificans, and C. nitrativorans. The organisms have low virulence and rarely cause human disease. The most common pathogen in the genus is C. testosteroni. This organism is known as a 'testosteroni' because it can grow solely on testosterone-containing media. E. coli is a Gram-negative, facultative anaerobic, rod-shaped coliform bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms.Most strains of E. coli are harmless and even beneficial to your digestive tract. However, some strains can cause diarrhoea if you consume contaminated food or drink contaminated water.
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A concept that asserts fundamental principles of justice and implies the
administration of laws that do not violate the sacredness of private rights
is called:
O Due Process of Law
O Definite Sentence
O Dual Courts
O Durham Rule
A concept that asserts fundamental principles of justice and implies the administration of laws that do not violate the sacredness of private rights exists comprehended Due Process of Law.
What is meant by Due Process of Law?To ensure that all of the person's legal rights are honored, the state must apply all relevant legal laws and principles to the case. This is known as due process of law. Due process safeguards a person's rights and balances the power of the law.
The U.S. Supreme Court gives these provisions a broad interpretation and comes to the conclusion that they offer three types of protection: procedural due process (in civil and criminal proceedings); substantive due process, which forbids the use of vague laws; and they serve as the means of incorporating the Bill of Rights.
The Fifth Amendment is divided into five rights or protections: the right to a jury trial when you are accused of a crime; the right to be innocent unless proven guilty; the right to an impartial jury; the right not to be forced to testify against your will; and the right to a fair trial.
Therefore, the correct answer is option a) Due Process of Law.
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describe two ways that primary producers produce high-energy compounds
Answer:
Photosynthesis uses energy from sunlight, and chemosynthesis uses chemical energy.
Explanation:
Two ways that primary producers produce high-energy compounds are Photosynthesis and chemosynthesis.
Primary producers, additionally called autotrophs, are unit creatures that acquire their ingredients from dead sources and their energy from daylight.
Plants and different living things use a method known as chemical action to remodel lightweight energy into energy which will then be free through respiration to power the organism's activities.
By mistreatment chemicals as their energy supply instead of daylight, bacterium turns out food (glucose) through a method called synthesis. Around hydrothermal vents, synthesis takes place, and gas seeps into the deep ocean wherever daylight isn't a gift.
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how do the ions move between the pond water and the plant cells using active transport?
Answer:
For plants to take up mineral ions, ions are moved into root hairs, where they are in a higher concentration than in the dilute solutions in the soil. Active transport then occurs across the root so that the plant takes in the ions it needs from the soil around it. Active transport in animals
Explanation:
How does a volcano affect local population? 4 sentences
Volcanoes affect people because it produces toxic volcanic ashes and problems to the respiratory system, eyes, and skin. It also causes injuries and affects transport and communication problems.
How volcano affects the local population?Volcanoes emit hot, dangerous gases, ash, lava, and rock that are powerfully devastating. People have died from volcanic blasts. Volcanic discharge can result in additional threats to health, such as floods, rockslides, power outages, drinking water contamination, and wildfires. When volcanoes erupt they can spew hot, dangerous gases, ash, lava, and rock that can cause tragic loss of life of people and property, especially in heavily populated areas.
Volcanic activities and wildfires greatly affected 6.2 million people and caused about 2400 deaths between 1998-2017. During volcanic eruptions and their instant aftermath, increased respiratory system morbidity has been observed as well as humanity among those affected by volcanic eruptions.
So we can conclude that Although several factors activate a volcanic eruption, three predominate
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which of the following crosses lipid bilayers the fastest? a small, polar molecule like water a large, polar molecule like glucose a small, nonpolar molecule like oxygen (o2) a sodium ion
A small, nonpolar molecule like oxygen crosses lipid bilayers the fastest.
The cell membrane is made of a lipid bilayer through which the passing of small, nonpolar molecules is easy. This is because the small, nonpolar molecules are soluble in the lipid bilayer.
Molecules like oxygen can easily pass through the cell membrane. However, it is difficult for large, polar molecules to move across the lipid bilayer because polar molecules are not soluble in the lipid bilayer. The smaller, polar molecules that are uncharged can still pass through the cell membrane.
It is due to the hydrophobic nature of the lipid bilayer that polar molecules face difficulty in passing through the cell membrane.
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Which is an advantage of a natural-gas-burning power plant over an oil-burning power plant?
A.It releases more energy.
B.It uses a renewable resource.
C.It releases fewer pollutants.
D.It does not release greenhouse gases
Answer: C.) It releases fewer pollutants.
Explanation: Natural-Gas has less Co2 that is released when it burns, meaning that it’s a better option for a fuel source if you don’t want to have pollutants that coal or oil release. Although both fuel sources produce similar amounts of energy anyhow.
While viewing a specimen under high power of a compound light microscope, a student noticed that the specimen was out of focus. Which part of the microscope should the student turn to obtain a clearer image under LOW power?
Answer: fine adjustment
Explanation:
To obtain a clearer image under low power on a compound light microscope, the student should adjust the focus using the coarse focus knob.
The compound light microscope typically has two focusing knobs:
The coarse focus knobThe fine focus knob.The coarse focus knob is used to make larger adjustments to the focus.
When the student noticed that the specimen was out of focus under high power, they can switch to low power and then use the coarse focus knob to bring the specimen into focus.
By turning the coarse focus knob clockwise or counterclockwise, the student can move the objective lens closer to or farther away from the specimen, which will help them obtain a clear image.
Thus, the learner should use the coarse focus knob on a compound light microscope to change the focus in order to get a crisper image at low power.
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Read the description below.
Some people can taste PTC (a very bitter substance), while others cannot. The ability to taste this substance is controlled by a single gene. The alleles for tasting PTC are shown with the letter T. The ability to taste PTC is dominant.
Ben’s mom has a heterozygous genotype for the PTC-tasting gene. Ben’s dad cannot taste PTC.
Which Punnett square correctly shows Ben’s parents?
The Punnett square that shows Ben Parents is option (B) since Tt (heterozygous dominant) is for Ben's mom and tt (homozygous recessive) is for his dad.
What is Punnett Square?The Punnett square is a square diagram used to predict the genotypes resulting from a specific cross or breeding experiment. It was created by Reginald C. Punnett in 1905 and bears his name. Biologists use the diagram to determine the likelihood that an offspring will have a particular genotype.
A Punnett Square is a useful tool for predicting the variations and probabilities resulting from cross breeding. This includes predicting the hybridization of plants, animals, and even humans.
Therefore, option (B) Punnett square shows heterozygous dominant as well as homozygous recessive genes for Ben's parent respectively.
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You are studying a gene that, when mutant, causes oligodendrocytes to enwrap sections of axon so that nodes of ranvier are more closely spaced. What is the likely effect on nerve impulses?.
Answer:
They will travel slower.
Explanation:
"Why is each part of the cell essential to survival" please restate this question into a cer form
Each part of the cell is essential to survival because they perform the necessary functions which help keep us alive.
What is a Cell?This is referred to as the simplest unit of life and becomes aggregated to for tissues which have similar structures and functions. Cells undergo different forms of aggregation which results in the formation of organ system and the organism itself as a whole.
Let's take the part of the body such as the nose for example, if the cells are damaged then it will lead to the reduction in its function which in this scenario is trouble smelling correctly. This in turn leads to not being able to detect or move away from hazardous substances and may cause unpleasant circumstances or death in serious cases which is why each part of the cell is essential to survival.
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What type of organic molecules do these represent
The organic molecules that are shown in the image are called biological macromolecules.
What are biological macromolecules?Let us note that a macromolecule is a molecule that is composed of smaller units. These smaller units are called monomers. It then follows that we can form the macromolecule by the agglomeration of many units of the smaller molecules that we call the monomers.
Biological molecules are the kind of molecules that play various roles in the body. It also implies that almost all of the biological molecules are found almost to exist exclusively in the bodies of the different species of living organisms.
The role that the molecules pay range from the fact that are important in the supply for energy in the cells of living things to the fact that they could be used as the building blocks of the nuclei acids. The biomolecules that are sugars steroids and fats.
The molecules In the question all all organic molecules and are found to be useful in the body hence they are all generally referred to by the generic name of biological macromolecules.
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Please answer the two questions in the photo! (will mark brainliest if correct)
Answer:
d and b are the correct answers
Why is facilitated diffusion used to transport bicarbonate across a membrane?
Diffusion of solutes through transport proteins in the plasma membrane is referred to as facilitated diffusion. Passive transport is a subset of facilitated diffusion. Because the solution is traveling down the concentration gradient, assisted diffusion is still passive transport even when it incorporates transport proteins.
We employ assisted diffusion because...
Therefore, polar and charged molecules including ions, amino acids, nucleosides, and carbohydrates can traverse the plasma membrane due to facilitated diffusion. Carrier proteins and channel proteins are the two main groups of proteins that mediate assisted diffusion.
Even though ions are small molecules, the charge they carry prevents them from diffusing through the lipid bilayer of biological membranes. As a result, assisted diffusion is used to transfer them along their gradient of concentration.
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help me T^T: If an enzyme with an optimal pH of 6, was exposed to a pH of 9, how would this impact the enzymes function?
If an enzyme has an optimal pH of 6 when it is exposed to a pH of 9 the enzyme's function would be altered because the conditions of the media would trigger its denaturation.
What is enzyme denaturation?Enzyme denaturation is the biochemical process in which the tridimensional shape if the enzyme is irreversibly altered as a consequence of abnormal environmental conditions such as the pH of the media, which is associated with the loss of its function.
Therefore, we can conclude that enzyme denaturation would lead to the loss of activity or the enzyme.
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In some cases, people who test positive for genetic testing can receive preventive treatments. For example, people who test positive for the breast cancer genes BRCA1 and BRCA2 can have a preventive mastectomy (breast removal surgery) before they develop the disease. In other cases, no preventive treatments are available, but frequent monitoring can help detect a disease earlier, when it’s more easily treated.
What ethical or professional concerns does a health-care professional need to address when he or she has a patient who wants to prematurely treat a genetic disease? Do you think genetic testing should be part of normal preventive healthcare? Why or why not?
Question 7(Multiple Choice Worth 2 points)
(02.07 MC)
Which of the following steps is required after biological processes have broken down organic material in wastewater?
A-Water is placed in an aeration basin to increase oxygen.
B-Primary clarifiers separate solids from the wastewater.
C-Filtration removes rocks and pebbles from the water.
D-Disinfection purifies water before it is released.
The step required after biological processes have broken down organic material in wastewater is: (C) Filtration removes rocks and pebbles from the water.
Biological process of waste water treatment is the method that makes the use of microorganisms to break down the organic waste present in the water. It is also called the conventional method and is the most commonly used one.
Filtration is the second last step of biological process where the suspended solids like tiny rocks and pebbles are removed before the purified water is sent for disinfection. It is an optional step because if there are no suspended particles than the water is subjected to direct disinfection.
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How does a cell at the end of the first phase of the cell cycle differ from a cell at the end of the second phase
Answer:
In eukaryotic cells, the cell cycle phases are split into two significant phases – interphase and the mitotic phase. While in interphase, the cell significantly grows and replicates a DNA copy, in the mitotic phase or the M phase, the cell splits its DNA into two sets and hence the division of the cytoplasm to form two daughter cells.
Explanation:
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in 1963, bormann and likens compared the output of two river valleys in the hubbard brook forest, one forested and the other clear cut. what were their findings?
Bormann and Likens compared the output of two river valleys in the hubbard brook forest, one forested and the other clear cut and discovered that deforested valley had higher water flow and increase of nutrient loss.
What is Nutrient?This is referred to as a substance which is derived from different sources and provides the nourishment which is needed for the growth and survival of organisms.
Two scientists known as Bormann and Likens compared two river valleys in which one was forested and clear cut and discovered that deforested valley had higher water flow and increase of nutrient loss.
This is because the lack of trees leads to erosion occurring in the area and loss of nutrients due to the layers of the soil being washed away by water or wind.
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Nirenberg and leder used synthetic ‘triplets’ of rna. The purpose of these short rna molecules was to.
The purpose of these short rna molecules was to take the place of part of an mRNA within the ribosome.
In the Nirenberg and Leder experiment, these synthetic RNA triplets were intended to represent the codons that would be present in a genuine mRNA strand. It was discovered that these artificial "codons" may cause precise interaction of amino acid-charged tRNA with ribosomes.
What is Nirenberg and Leder experiment?
In the cell-free systems, Leder and Nirenberg utilized very small synthesized RNA sequences (three nucleotides). These reduced-length fragments were still detectable and long enough for the ribosome to interact with the specific kind of tRNA molecule that is complementary to the one codon. The experiment's crucial step was labeling one kind of amino acid at a time, followed by passing the mixture through a Millipore filter. The ribosomes with the bonded triplet could not pass through this unique filter, but unbound tRNAs could. After then, the sample's radioactivity was checked. The matching amino acid was added if radioactivity was discovered in the sample that did not pass through the filter.
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