Describe and explain how a nitrate ion in the soil becomes part of a stored molecule in the seed of a plant
Answers
A nitrate ion in the soil is taken up by the roots of a plant and is then transported to the leaves via the xylem, where it is reduced and assimilated into amino acids, which are the building blocks of proteins.
Proteins are synthesized from amino acids, and the resulting polypeptide chains are folded into the specific three-dimensional structures required for their function. The seeds of a plant contain proteins that are used for growth and development, as well as energy storage. To become a stored molecule in the seed, the nitrate ions from the soil are first taken up by the roots of the plant and transported to the leaves via the xylem.
In the leaves, nitrate is reduced to nitrite, and then to ammonium, which is assimilated into amino acids via a process known as assimilatory nitrate reduction. The amino acids formed are then synthesized into proteins, which are the primary building blocks of the seed. These proteins serve as a source of energy and nutrients for the developing embryo within the seed.
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Related Questions
Which statement correctly describes the behavior of a tetrad during anaphase I of meiosis? It splits into four chromosomes, which distribute in random pairs to the two poles of the dividing cell. It travels intact to one pole of the dividing cell. It splits into two pairs of sister chromatids, and one pair goes to each pole of the dividing cell. It splits into two pairs of homologous, nonsister chromatids, and one pair goes to each pole of the dividing cell.
Answers
The statement that correctly describes the behavior of a tetrad during anaphase I of meiosis is: "It splits into two pairs of homologous, nonsister chromatids, and one pair goes to each pole of the dividing cell." Option D is correct.
During anaphase I of meiosis, a tetrad, also known as a bivalent, consists of two pairs of homologous chromosomes. Each pair of homologous chromosomes contains one chromosome from the maternal parent and one from the paternal parent. In anaphase I, the homologous chromosomes separate from each other and migrate towards opposite poles of the dividing cell.
This separation occurs through the splitting of the tetrad into two pairs of homologous, nonsister chromatids. One pair, consisting of one chromatid from each homologous chromosome, moves to one pole, while the other pair moves to the opposite pole. This process ensures the reduction of the chromosome number by half in the resulting daughter cells and the distribution of genetic diversity through the independent assortment of homologous chromosomes, option D is correct.
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The complete question is:
Which statement correctly describes the behavior of a tetrad during anaphase I of meiosis?
A. It splits into four chromosomes, which distribute in random pairs to the two poles of the dividing
B. It travels intact to one pole of the dividing cell.
C. It splits into two pairs of sister chromatids, and one pair goes to each pole of the dividing cell.
D. It splits into two pairs of homologous, nonsister chromatids, and one pair goes to each pole of the dividing cell.
True or false identify if it is false: wetlands flood peoples homes and also filled with freshwater thats good for the aquatic life in the water.
Answers
Please help me! I also need to know what the probability of the child having type A blood will be?
Answers
Answer:
Possibility: 50%/ 1/2
Explanation:
Answer: 25% chance for A homozygous blood type
Explanation:
Why does diuron cause coral to bleach
Answers
Simple answer:
When corals are stressed by changes in conditions such as temperature, light, or nutrients, they expel the symbiotic algae living in their tissues, causing them to turn completely white. Warmer water temperatures can result in coral bleaching. ... This is called coral bleaching. When a coral bleaches, it is not dead.
More in depth explanation:
Exposure to higher (100 and 1000 µg l-1) diuron concentrations for 96 h caused a reduction in ΔF/Fm¹, the ratio variable to maximal fluorescence (Fv/Fm), a significant loss of symbiotic dinoflagellates and pronounced tissue retraction, causing the corals to pale or bleach.
Hope this helped :)
17. How does the placement of the stamen in relationship to the pistil affect the way in which
the flower is fertilized?
Answers
Answer:
this placement increases the chances of pollination
Explanation:
Pollination refers to the process of transferring pollen grains from the male stamens of a flower to the female stigma. The stamens generally surround the pistil and they are composed of two structures: 1-the anther (produces male reproductive cells or pollen grains) and 2-filaments (supports the anthers). Moreover, the female pistil is generally located at the center of the flower and it is composed of three structures: stigma (a sticky bulb in the center of flower), ovary (contains female reproductive cells or ovules), style (supports the stigma). The arrangement of the plant's reproductive organs increases the chances of pollination: when a pollinator (e.g. bees) visits a stigma for nectar it has to go through the stamen and catch pollen that then carries to the stigma of the same flower (auto-pollination) or another flower (cross-pollination). Moreover, the flowers also have petals and sepals that help attract pollinators and protect the flower bud, respectively.
snake,grass hopper,grab,spider from the above organisms formulate a dichotomous key
Answers
Does it have legs? (Yes/No)
Yes: Go to 2
No: Go to 3
Does it have more than 4 legs? (Yes/No)
Yes: Grasshopper
No: Snake
Does it have eight legs? (Yes/No)
Yes: Spider
No: Grab
To formulate a dichotomous key using the given organisms (snake, grasshopper, crab, spider), we can follow this structure:
Does the organism have legs?
Yes: Go to question 2.
No: It's a snake.
Does the organism have more than four legs?
Yes: Go to question 3.
No: It's a grasshopper.
Does the organism have a hard exoskeleton?
Yes: It's a crab.
No: It's a spider.
This dichotomous key helps differentiate between the organisms based on their characteristics. By answering the questions sequentially, one can identify the correct organism.
It starts by determining if the organism has legs or not, leading to the snake if it lacks legs. If the organism has legs, the key proceeds to assess the number of legs, identifying the grasshopper if it has four or fewer legs.
Finally, the presence or absence of a hard exoskeleton distinguishes between the crab and spider, with a hard exoskeleton indicating a crab and its absence indicating a spider.
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The function of mitochondria and chloroplasts is related to energy. In what way does their function differ?
A.
Mitochondria produce energy in prokaryotic cells, while chloroplasts produce energy in eukaryotic cells.
B.
Mitochondria produce energy from food, while chloroplasts produce food from the Sun’s energy.
C.
In plants, mitochondria provide energy in non-green cells, while chloroplasts provide energy to cells in parts of the plant that are green.
D.
Mitochondria provide energy in the night, while chloroplasts provide energy in the day.
E.
Mitochondria provide energy from food synthesized by organelles other than chloroplasts, while chloroplasts provide energy through photosynthesis using the Sun’s energy.
Answers
Answer:
The answer is option E- Mitochondria provide energy from food synthesized by organelles other than chloroplasts, while chloroplasts provide energy through photosynthesis using the Sun’s energy.Explanation:
What is fermentation ?
?
Answers
Answer:
Fermentation is the process in which a substance breaks down into a simpler substance.
Answer:
A chemical breakdown of a substance.
Explanation:
An example would be yeast and bacteria. :))
Humans often like to help wild animals survive better. A marine biologist decided to feed Bruce’s pups and placed medicine in the food to prevent the pups from contracting an infectious disease. This helped more of Bruce’s offspring survive into adulthood. Eventually, the marine biologist moved after Bruce’s offspring reached adulthood. On the other hand, Chum’s offspring survived due to an inheritable trait that made them more resistant to infections.
A. Would the medication given from the marine biologist be able to pass down from one generation to the next
B.Would Bruce’s pups or Chum’s pups produce a fitter generation of pups? Explain your answer.
Answers
A. The medication given from the marine biologist would not be able to pass down from one generation to the next.
B. Chum’s pups would likely produce a fitter generation of pups because they have an inheritable trait that makes them more resistant to infections, which would give them a survival advantage.
Who is a marine biologist?
This refers to the study of biological oceanography and the fields related to chemical, physical, and geological oceanography to understand marine organisms. Marine biology is a very vast area of study therefore, researchers select a particular area of interest and specialize in it.
Medication is not an inheritable trait and cannot be passed on through genetics. In contrast, Bruce’s pups may not necessarily have an inheritable advantage that would make them fitter. The medication given to them by the marine biologist may have helped them survive, but it would not have passed down to their offspring, so they would not have a genetic advantage.
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Osteoporosis is more prevalent among women than men because women generally
A. have more bones in their bodies than men have.
B. take in more calcium than men take in.
C. have lower bone mass than men have.
D. exercise more than men do.
Answers
Osteoporosis is more prevalent among women than men because women generally C. have lower bone mass than men have.
Explanation:-
Women/females have lower bone mass & smaller bones as compared to men.
___________
꧁✿ ᴿᴬᴵᴺᴮᴼᵂˢᴬᴸᵀ2222 ✬꧂
what are most enzymes in living things made up of?
Answers
Answer:
proteins
Explanation:
Enzymes are biological catalysts that speed up the rate of biochemical reactions in living cells. Most enzymes are made up of proteins.
What type of temperatures will the enzyme shown in Graph (a) work best?
Answers
(Multiple Choice Worth 3 points)
(04.01 MC)
Which statement correctly describes the transfer of energy between the blue arrows?
O There is no change in energy.
There is twice the gain of energy.
There is a loss of energy.
There is a gain in energy.
Answers
The blue arrows denote the direction of the energy transfer from the turbine to the electrical generator. Based on the given diagram, the energy transfer between the blue arrows is a gain in energy.
Energy transfer refers to the conveyance of energy from one form to another, such as mechanical energy into electrical energy. Therefore, there is an increase in energy between the turbine and the electrical generator, which is highlighted in the blue arrows' direction.
The generator gains energy in the form of kinetic energy from the turning motion of the turbine. When the turbine turns the shaft of the generator, it causes electromagnetic fields to occur within the generator, which, in turn, generates electricity.
This energy transfer process is efficient as long as the system does not face friction or other forms of resistances. If the system does face such resistances, then there is a loss of energy and inefficiency in the energy transfer process, which can significantly affect the system's overall performance.
In conclusion, the energy transfer between the blue arrows is a gain in energy. The generator gains energy in the form of kinetic energy, which is converted into electrical energy. The efficient energy transfer process is vital for the system's optimum performance and operation.
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imagine a population of beetles. white beetles are easier for birds to see and eat. gray beetles blend into their surroundings, so they are less visible to birds than white beetles. as a result, gray beetles are more likely to survive and reproduce, enabling the gene for gray coloration to be passed on to the next generation. this increases the frequency of genes for gray coloration in the population. which evolutionary process does this scenario describe?
Answers
The evolutionary process that is described below that causes the frequency of genes for gray coloration in the population to increase is natural selection.
Natural selection can be described as a process in which organisms that are better able to survive in an environment are able to pass on their characteristics to their offspring.
In the scenario above, as gray species were better able to survive in an environment hence their frequency increased over time. On the other hand, the white beetles were not able to survive better in this environment and hence their frequency decreased over time. Hence, through natural selection, the gray species of beetles were favored more than the white ones.
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What would happen if Earth absorbed all of the heat from the sun? (1 point)
Responses
Earth would lose all of its heat.
Earth would lose all of its heat.
Earth would eventually stop receiving heat.
Earth would eventually stop receiving heat.
Earth would become too hot.
Earth would become too hot.
Earth would become too cold.
Answers
g pcr, as described in the investigative manual, is a very important and commonly used procedure in biotechnology and biochemistry labs. in 2020 a new virus, sarscov2, caused a world-wide pandemic. one of the diagnostic tools used to detect if a person was infected by this virus was (and is) pcr. describe how pcr can be used to detect the presence or absence of sarscov2. is this method 100% reliable?
Answers
No, this method cannot be 100% reliable. This approach permits scientists to look the effects nearly without delay
Real time RT–PCR is a nuclear-derived technique for detecting the presence of particular genetic cloth in any pathogen, consisting of a virus. Originally, the technique used radioactive isotope markers to discover focused genetic materials, however next refining has caused the alternative of isotopic labelling with unique markers, maximum often fluorescent dyes. This approach permits scientists to look the effects nearly without delay even as the method continues to be ongoing, while traditional RT–PCR best offers effects on the stop of the method.
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Where does transduction occur in the ear?
Answers
Transduction in the ear occurs in specialized sensory hair cells located in the cochlea, which is part of the inner ear.
The cochlea is responsible for converting sound vibrations into electrical signals that are transmitted to the brain for interpretation as sound.
In the cochlea, the hair cells have hair-like projections called stereocilia that are embedded in the tectorial membrane. When sound vibrations cause the tectorial membrane to move, the stereocilia are bent, opening ion channels and triggering a cascade of events that leads to the generation of electrical signals. This process is known as mechanotransduction, and it is the first step in the process of converting sound vibrations into electrical signals in the ear. The electrical signals are then transmitted to the brain via the auditory nerve.
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why might scientists be wary of the results of a single experiment testing a particular treatment, even when the results are peer reviewed and statistically significant
Answers
Answer:
The results may not be true for humans if the experiment used a model organism.
Explanation:
An animal model is an animal species used in research that mimics diverse human traits/features such as, for example, human response to certain diseases. Thus, animal models may provide useful information related to human developmental biology and human diseases (i.e., prevention, diagnosis, treatment, etc). However, in general, experiments involving animal models cannot be used to predict human outcomes. For example, in genetics, animal models exhibit different features to humans, including but not limited to genomes (i.e., different number and structure of chromosomes), genes, gene regulatory pathways, epigenetics gene regulatory mechanisms, etc. In consequence, animal tests may be unreliable and therefore their results cannot be directly extrapolated to human subjects.
What is composite fish farming? (Simplest way please)
Answers
Answer: Composite fish culture is a method in which five or six different fish species are grown together in a single fish pond.
Explanation: Fish with different food habitats are selected so they will not compete with each other for food. This ensures maximum utilization of the available food supply in a pond.
What might have been the first
word out of Darwin’s mouth at the
end of his research travels?
Answers
Diversity is the first word out of Darwin's mouth at the end of his research travels.
How does evolution explain diversity?
The interactions between organisms and environment and the consequence of interactions over long periods of time explains duversity and evolution.
Darwin discovered the natural selection that explains the development of variety of organisms from a single common ancestor. The change in the environment provides a high variability of alleles that helps in evolving the new environment.
What is the Darwin's theory of evolution?
The process by which change in organisms due to the change in behavioral and physical traits.
Due to the change in environment individuals develop adaptive traits in order to survive and reproduce. These adaptive traits are advantageous to the upcoming population.
Darwin proposed that species change over time and new species come from pre-existing species sharing a common ancestor.
Hence, Darwin discovered diversity at the end of his research travels.
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name the diseases caused by deficiency of [A] iodine [B]vitamin c
Answers
Answer:
Deficiency of iodine cause Goitre.
Deficiency of Vitamin C cause Scurvy.
Hope it helps:)
Have a nice day!
Answer:
goitre and scurvy
Explanation:
1.)what are non examples solutions for water pollution
2.) How has water pollution been solved in the past?
Answers
So both the questions are very similar and asks for solutions to pace water pollution. Below they are introduced:
Improve wastewater: treatment: Enhance and expand wastewater treatment facilities to ensure effective removal of pollutants before discharge into water bodies. Implement advanced treatment technologies, such as activated sludge, membrane filtration, and ultraviolet disinfection, to remove contaminants effectively.
Implement stricter regulations: Enforce and strengthen environmental regulations and laws related to water pollution. Establish stringent standards for industrial and agricultural practices to prevent the release of harmful substances into water sources.
Encourage sustainable farming practices: Promote the use of organic fertilizers and reduce the reliance on chemical pesticides and herbicides in agriculture. Encourage precision irrigation techniques, such as drip irrigation, to minimize water usage and prevent runoff of fertilizers and pesticides into water bodies.
Control industrial pollution: Enforce stricter regulations on industries to limit the discharge of pollutants into water bodies. Implement waste management practices to reduce the release of toxic chemicals and heavy metals.
Prevent oil spills and leaks: Implement stringent safety measures for offshore drilling, transportation, and storage of oil and petroleum products.
Protect and restore wetlands: Preserve and restore wetlands as they act as natural filters and buffer zones, effectively removing pollutants from water.
How are the products represented in the chemical equation for photosynthesis?
O 0₂ +6C0₂
O C6H12O6 + 6H₂O
O 6CO2 + 6H₂O
O C6H12O6 + 60₂
Answers
Answer:
D.) C₆H₁₂O₆ + 6 O₂
Explanation:
The balanced chemical equation for photosynthesis:
6 CO₂ + 6 H₂O ------> C₆H₁₂O₆ + 6 O₂
The reactants are on the left side of the reaction, and the products are on the right side. The reactants consist of carbon dioxide and water. The products are glucose and oxygen.
The products represented in the chemical equation for photosynthesis is C6H12O6 + 60₂. Therefore, option (D) is correct.
What do you mean by photosynthesis?Photosynthesis is a cycle utilized by plants and different life forms to change over light energy into substance energy that, through cell breath, can later be delivered to fuel the creature's exercises.
Trees and plants use energy from the sun and carbon dioxide in the air to make food through a natural process called photosynthesis. The plants and trees that make up forests play a role in the production of oxygen by storing carbon both above and below the ground.
Instances of photosynthesizing organic entities: Phytoplankton photosynthesis is basically carried out by green plants, cyanobacteria and various kinds of algae.
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what function is served by the major groove in dna? A. It is the binding site for ethidium bromide.
B. It is a binding site for regulatory proteins.
C. It is a region of denatured DNA to which restriction endonucleases bind.
D. It is a region of DNA that can form a hybrid duplex with DNA of another species.
E. It is the site of guanine tetraplex formation.
Answers
Option d) It is a region of DNA that can form a hybrid duplex with DNA of another species. function is served by the major groove in dna.
Deoxyribonucleic acid is a kind of DNA. DNA is a polymer made up of two polynucleotide chains that coil around one another to create a double helix. (listen);[1] DNA) is one such polymer. All known organisms and many viruses have genetic information in the polymer that is necessary for their development, operation, growth, and reproduction. Nucleic acids include DNA and ribonucleic acid (RNA).
Nucleic acids are one of the four main categories of macromolecules that are necessary for all known forms of life, along with proteins, lipids, and complex carbohydrates (polysaccharides).
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One way to get consistent, valid data is to
be sure that instruments are calibrated properly.
use simple instruments to make measurements.
select the best data to place into data tables.
make the measurements as quickly as possible.
Answers
Answer:
be sure that instruments are calibrated properly.
the spinal cord ends near the intervertebral disc that separates the ______.
Answers
Answer:
first and second lumbar vertebrae
Explanation:
The spinal cord ends near the intervertebral disc that separates the last lumbar vertebra from the first sacral vertebra.
This is known as the lumbosacral junction, which is located at the lower end of the spinal column. At this point, the spinal cord divides into multiple nerve roots that extend down into the legs and feet. The intervertebral discs are located between each vertebra and act as shock absorbers to cushion the spine during movement. The discs also provide space for the spinal nerves to exit the spinal cord and travel to other parts of the body.
Injuries or degeneration of the intervertebral discs can cause nerve compression and result in pain or other neurological symptoms. Therefore, it is important to maintain proper spinal alignment and take measures to prevent disc degeneration through exercise, good posture, and other healthy habits.
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What is a isotonic solution? How does it affect a red blood cell?
What is a hypertonic solution? How does it affect a red blood cell?
What is a hypotonic solution? How does it affect a red blood cell?
Answer plz!
Answers
Answer: If you place an animal or a plant cell in a hypertonic solution, the cell shrinks
Explanation: because it loses water ( water moves from a higher concentration inside the cell to a lower concentration outside ). ... A single animal cell ( like a red blood cell) placed in a hypotonic solution will fill up with water and then burst.
An isotonic solution is one wherein the solute concentration across the semipermeable membrane is the same resulting in an equilibrium state.
They do not shrink or swell in an isotonic saline solution, i.e., 0.9% w/v solution of sodium chloride
Hypertonic solution: A solution that contains more dissolved particles (such as salt and other electrolytes) than is found in normal cells and blood.
Now, let’s suppose RBCs are placed in a solution with a sodium chloride concentration of 2% w/v. The sodium chloride concentration of 2% w/v is greater than the RBC’s sodium content and hence the solution is hypertonic. This will result in shrinkage of the RBCs known as crenation
When a solution has a lower solute concentration than the solution present across the semipermeable membrane, it is known as a hypotonic solution. As a result, when a cell is placed in a hypotonic solution, an osmotic pressure gradient forces the solvent to move into the cell in order to attain equal solute
In another situation, let’s suppose RBCs are placed in a solution with a sodium chloride concentration of 0.1 % w/v. The sodium chloride concentration of 0.1% w/v is less than the RBC’s sodium content and hence hypotonic saline. This will result in swelling and eventually bursting of the RBCs which will result in the release of hemoglobin. This is known as hemolysis which is a very dangerous situation.
Geologic time is a way to _______.
a)measure the size of Earth over time
b)measure the sequence of events on Earth over time
c)determine natural processes
d)determine common ancestry in fossils
Answers
Answer:
B. measure the sequence of events on Earth over time
Explanation:
3. What is the function of the epiglottis? helps to mechanically break down food moves the food towards the esophagus releases enzymes to aid in the digestion of fats closes over the windpipe so that no food enters the lungs
Answers
Explanation:
The epiglottis is a flap in the throat that keeps food from entering the windpipe and the lungs. It's attached to the entrance of the larynx and stands open during breathing, allowing air to flow into the larynx. But during swallowing, it closes to force liquids or food into the esophagus instead.
Hope it helps and don't forget to rate-me down below and smash that brainliest button!Have a Great Day,EdwinThe model shows a nucleic acid. Which is one function of the nucleic acid? It helps code for proteins. it help synthesize DNA It provides energy to the cell.. It helps synthesize DNA. It helps synthesize DNA. It is a major component of the cell membrane. It is a major component of the cell membrane.
Answers
Answer:
The correct answer is - It helps code for proteins.
Explanation:
Nucleic acids are biomolecules that are essential for all life forms, they are of two major types RNA and DNA. In RNA the sugar is ribose whereas in DA deoxyribose sugar is present.
Nucleic acids are helpful in protein synthesis in both types of cells and all organisms. These biomolecule codes for the protein and makes the polypeptide chain made up of amino acids with the help of mRNA and tRNA with ribosomes.