The function (job) of the carbohydrate chains attached to the cell membrane is:
a:assist in diffusion.
b: assist in cell to cell identification (name tag of the cell).
c: maintain membrane fluidity.
Answers
Carbohydrate chains attached to the cell membrane serve multiple functions in the cell. The foremost function of these carbohydrate chains is to assist in diffusion.
Here correct option is A
Carbohydrates are hydrophilic, and they attract water, which makes it easier for molecules to move in and out of the cell, allowing for the efficient transport of substances. Secondly, they help in cell to cell identification.
Carbohydrates are used like a name tag to help other cells know which cell they are dealing with and what type of cell it is. Finally, carbohydrates help to maintain membrane fluidity. As the temperature changes, the amount of fatty acid chains in the membrane can change, resulting in an altered fluidity.
Carbohydrates keep the membrane flexible and provide stability, allowing for normal cellular activities to take place despite changing temperature. Thus, carbohydrates attached to the cell membrane play an important role in helping the cell survive and function in its environment.
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Related Questions
2 hydrogen atoms, 1 carbon atom, and 3 oxygen atoms is the molecular formula for__
Answers
Answer:
H2CO3
Explanation:
Eukaryotic cells vary in structure according to their function. An example of a characteristic of a eukaryotic cell that relate closely to the cell's function is:
A. a bacterial cell wall providing support for the cell
B. the trachea aiding i the exchange of gases in the lungs
C. muscle cells having an elongated shape
D. plant cells containing a nucleus
Answers
The correct answer is C. muscle cells having an elongated shape.
Muscle cells are specialized for contraction and movement. Their elongated shape allows them to span long distances within the body and generate force. The elongated shape of muscle cells allows them to align in parallel, enabling coordinated contraction and the generation of mechanical force necessary for muscle function. This structural characteristic is directly related to the function of muscle cells in facilitating movement in organisms.
Mitosis can occur in both haploid and diploid cells, but meiosis cannot occur in haploid cells. Why not?.
Answers
Meiosis cannot be generated in a haploid cell because in meiosis a cell division occurs in which genetic material is distributed to two daughter cells, it is necessary that there are homologous chromosomes.
What is meiosis?Meiosis is a type of cell reproduction in which gametes are produced. It is a cell division in which a diploid cell will carry out two consecutive cell divisions in which four haploid cells will be generated, that is, those with a single set of chromosomes.
Therefore, we can confirm that meiosis cannot be generated in a haploid cell because in meiosis a cell division occurs in which genetic material is distributed to two daughter cells, it is necessary that there are homologous chromosomes.
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what are the symptoms of bronchitis
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▹ Answer
See below
▹ Step-by-Step Explanation
Symptoms of bronchitis are a cough, shortness of breath, chills, mucus, tiredness, etc. (These are the main ones)
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if o blood group girl marries with A negative blood group boy can there be a chance that if they have a baby together then it may be B OR A group?
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in snapdragons, red flower color (cr) is incompletely dominant to white (cw); and the crcw heterozygotes are pink. a red-flowered snapdragon is crossed with a white-flowered one. determine the flower color of
Answers
In snapdragons, the red flower color (CR) is incompletely dominant to white (CW). When a red-flowered snapdragon is crossed with a white-flowered one, the offspring's phenotype will be:50% red25% pink25% white.
According to the given problem statement, we can assume that the following:Red flower color (CR) in snapdragons is incompletely dominant to white (CW); and the CRCW heterozygotes are pink. A red-flowered snapdragon is crossed with a white-flowered one.
We are required to determine the flower color of the offspring. The expected flower color of the offspring when a red-flowered snapdragon is crossed with a white-flowered one can be determined using the Punnett square.
Here's the Punnett square:
Step 1: Write down the parental genotypes. The red-flowered snapdragon can be denoted as CR/CR.The white-flowered snapdragon can be denoted as CW/CW.
Step 2: Write down the genotypes of the offspring as determined by Mendelian genetics. Possible offspring genotypes can be: CR/CW, CR/CR, and CW/CW.
Step 3: Determine the phenotypes of the offspring. The phenotype ratio of a CR/CW genotype would be pink, whereas a CR/CR genotype would be red and a CW/CW genotype would be white. The phenotype ratio of the offspring can be calculated using the following formula:
Pink: Red: White = 1: 2: 1
Therefore, the offspring's phenotype will be:50% red25% pink25% white.
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how was Darwin able to create the fantailpigeon from the wild rock dove by using
Answers
Answer:
artificial selection
Explanation:
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in an El nino event, surface temperatures of the pacific oceans are above average for at least a year. what effect, if any, would warmer temperatures have on the growth of a kelp forest ecosystem on the california coast?
Answers
El Niño is a phenomenon that impedes warm water to move westward and upwellings events. The kelp forest ecosystem is negatively affected by the rise in water temperature, lack of nutrients, and consequent effects.
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kelp forestThe kelp forest is a large population of brown algae that live in marine cool and relatively shallow waters rich in nutrients.
The population density is so high that they are considered to be marine forests, accomplishing many ecosystemic services, such as
absorbing CO₂, releasing a significant amount of O₂, protecting the coasts from waves erosion, and decreasing acidification.They are shelter and source of food for many different species, becoming one of the most diverse and productive habitats.
El Niño Event
The El Nino Southern Oscillation -ENSO- phenomenon occurs due to a complex system of climatic oscillations between the ocean and the atmosphere.
This phenomenon causes significant perturbations in the usual pluvial regimens in the tropics. It provokes
• dry seasons in areas where it usually rains
• rainy seasons in desertic regions.
ENSO phenomenon is dominant in the global climate system.
Under El Niño conditions
A tropical and weak stream in the Pacific acquires strength while the opposite streams debilitate. This change impedes warm water go westward, remaining on America's west coasts. Upwelling does not occur on the America's coasts. In some regions, temperatures rise, and unusual precipitations occur in desertic or dry areas -Atacama desert-. Other affected areas are Eastsouth Asia, Australia, and New Zealand, where there are fewer precipitations and cooler temperatures. Rainfall drops below the average, affecting crops and livestock. Effect of warmer temperatures on the kelp forest
The kelp forest is very sensitive to temperature changes. As a fact, the forest distribution depends on temperature as a limiting factor.
El Niño event has a damaging influence on these forests, not only because they reduce the availability of nutrients but also because they produce a significant change in water temperature.
Ocean warming negatively impacts algae reproduction, growth, and survivorship.
Algae are damaged by the temperature rise to the point of being eliminated.
Associated species composing the marine ecosystem are affected too since they have no refuge, food and live in environments with a higher concentration of CO₂, lower O₂, and more acidification.
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How do thermal and nonthermal am fungi affect d. Lanuginosum plants grown at high temperatures?.
Answers
The effect of thermal and non-thermal AM fungi on Dichanthelium lanuginosum plants, root and shoot growth was almost the same, there was no significant difference.
What is the role of arbuscular mycorrhiza (AM) fungi?AM fungi play an important role in the host plant to expand the absorption area of root hairs through the formation of mycelium around the roots. The formation of mycelium around the roots will increase the cruising volume so that the ability of plants to absorb water and nutrients is better than plants that do not have AM fungi.
Mutualism symbiosis between AM fungi and the host occurs because of the root exudate. Plants will release root exudates in the form of flavonoid compounds to form a symbiosis with AM fungi. Flavonoid compounds have a positive effect on the growth of mycorrhizae at the presymbiotic stage.
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Think about the meaning of these words fruit seed germinate cotyledons, embryo ,plumule ,dormancy,root hairs. Write a sentence containing each of these words
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Answer:
When a seed, taken from a fruit, is planted and watered under the correct temperature, it breaks dormancy, and the embryo germinates; first, the root grows covered by root hairs, then the cotyledons appear, and finally, the plumule elongates to reach the light.
Explanation:
Fruit: It forms by the mature ovary of the flowers. This structure contains and protects the seeds in its interior. Its principal function is to transport seeds to a distant area away from the parental plant and let the new plant emerge under the correct environmental conditions. The fruit develops different strategies to accomplish its function. Seed: Refers to the fecundated and mature ovule. This structure is the typical dissemination and dispersion unit of spermatophyte plants. Seeds are formed of three tissues. An embryo. A seminal tegument that covers and encloses the latent embryo. And the endosperm -a nutritious tissue-. Seeds develop and grow under the protection of the fruit body. Embryo: It is formed after fecundation. It composes of growing cotyledons, an epicotyl, and a hypocotyl. The tegument and endosperm of the seed protect the embryo from dehydration and denutrition. Once the seed is in the correct place, the embryo grows and emerges. Cotyledon: The two first leaves of the embryo. They have reserve nutritive tissues to help the embryo grow. It also performs photosynthesis. The embryo usually develops one or two cotyledons and one radicule or root hair. Plumule: First shoot of the young emerging plant. When the embryo is growing, it elongates to reach more sunlight. Root hairs: Extention of the roots´ cells that look like hairs and whose principal function is to absorb nutrients and water from the ground. They can be found in the maturation area of the root. Germination: Process of development and the emergence of the embryo. These are a series of steps that must occur in the seed from the moment the embryo begins to develop until a newly emerged plantule is formed. For germination to occur, there must be the appropriate environmental conditions. Dormancy: Period in which an alive seed can not germinate because there is a condition inside the seed that does not allow germination to occur yet. The seed is in dormancy, but it keeps viability.Statement true or false , please help
1. Most organisms produce sexually.
2.During Sexual reproduction genes combine from a mother and a father.
3.Sexual reproduction produces a genetically identical offspring.
4. Asexual reproduction, similar to sexual reproduction, requires genes from two parents (a mother and a father).
5. Asexual reproduction produces a genetically unique offspring.
6.Cell division (mitosis), budding, and splitting are examples of asexual reproduction.
7.The process of meiosis occurs in sexual reproduction.
Answers
Answer:
the first one answers is Not all living organisms reproduce sexually.Explanation:
there are some living organisms ,which also reproduce asexually .serial takes place in humans ,animals,insects,birds,higher plants ,reptilesAnswer:
1)true
2) true
3)true
4) true
5)false
6)true
7)true
How to creates an environment conducive to tissue formation
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Creating an environment conducive to tissue formation requires a combination of factors such as proper nutrition, hydration, oxygenation, and protection from infection. It is essential to consume a balanced diet that includes adequate protein, vitamins, and minerals to support tissue growth and repair.
Hydration is also critical as it helps transport nutrients to the tissues and aids in the removal of waste products. Oxygenation is another vital factor, and maintaining proper breathing and blood flow can help deliver oxygen to the tissues, which is necessary for their survival and function. Additionally, it is crucial to protect the tissues from infection by practicing good hygiene and avoiding exposure to harmful pathogens. In summary, creating an environment conducive to tissue formation involves maintaining a healthy and balanced lifestyle that supports proper nutrition, hydration, oxygenation, and infection prevention.
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In what ways do scientists measure biodiversity? Choose all correct answers
Answers
☆〜Think back to how boat anchors are damaging corals on Seafoam Island. Read below about the island. Then use the table to answer the question.
☆〜The residents of Seafoam Island wanted to know whether the damage to corals could allow seaweed to take over the reef. So, scientists from Seafoam Island began a study to find out how much of the reef was covered in seaweed instead of corals.
☆〜The scientists collected data from the reef by using transects. A transect is a line of measuring tape that is laid across the surface of a reef. Scientists can record how much of the line is over seaweed and how much is over corals.
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Would be awesome if it was nice and quick <3
Answers
The completed table would be:
Year of study L covered in seaweed (m) % of reef covered in seaweed
Year 0 0.40 4.0%
Year 1 0.55 5.5%
Year 2 0.75 7.5%
Year 3 1.02 10.2%
How do we calculate?With the equation provided, we will calculate the percentage of the reef covered in seaweed for each year using the data provided in the table:
Year O:
percentage of reef covered in seaweed = (0.40 m / 10.0 m) x 100% = 4.0%
Year 1:
percentage of reef covered in seaweed = (0.55 m / 10.0 m) x 100% = 5.5%
Year 2:
percentage of reef covered in seaweed = (0.75 m / 10.0 m) x 100% = 7.5%
Year 3:
percentage of reef covered in seaweed = (1.02 m / 10.0 m) x 100% = 10.2%
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Free phagocytes found in the air sacs of the lungs are called:_________
Answers
An alveolar macrophage or pneumonic macrophage is a sort of macrophage, an expert phagocyte, hunted down in the flight routes and at the level of the alveoli in the lungs, however, isolated from their walls.
The macrophage populaces of the CNS incorporate the microglia, perivascular macrophages (PVM), meningeal macrophages (MM), macrophages of the circumventricular organs, and the macrophages of the choroid plexus. The most bountiful and best contemplated of these are the microglia.
They become dynamic in instances of contamination and sensitivities. Lymphocytes are insusceptible cells. They produce antibodies and backing cell insusceptibility. They are not phagocytic in nature. Langerhans cells (LCs) are antigen-introducing dendritic cells (DCs) that dwell in epithelia. The best-concentrated model is the LC of the epidermis.
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What happens to the air pressure in an area if the air temperature increases? (2 points) a The air pressure will increase because the air particles are packed together. b The air pressure will decrease because the air particles are spread out. c The air pressure will remain the same because temperature does not affect the air particles. d The air pressure will remain the same because the hot air will travel to different areas.
Answers
The correct answer is option b. The air pressure will decrease because the air particles are spread out.
What is air pressure ?
Air pressure is the force exerted by the weight of air molecules on the surface of the Earth or any other object immersed in the atmosphere. It is the weight of the air molecules above a given point and is typically measured in units of pressure such as pounds per square inch (psi), millibars (mb), or pascals (Pa). Air pressure is affected by a number of factors, including altitude, temperature, humidity, and weather patterns. Changes in air pressure can have significant impacts on weather patterns and can also affect human health and well-being.
Therefore , When the air temperature increases, the air particles gain energy and move faster, increasing the distance between the particles. This results in a decrease in air density, which in turn causes a decrease in air pressure. Conversely, a decrease in temperature would cause the air particles to move more slowly and become more densely packed, resulting in an increase in air pressure.
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This text is asking about the relationship between air temperature and air pressure. Air pressure refers to the force exerted by the weight of air molecules in the Earth's atmosphere, while air temperature refers to the measure of how hot or cold the air is.
The text provides four options for what happens to air pressure in an area if the air temperature increases. The first option suggests that air pressure will increase because the air particles are packed together. This is a correct statement, as an increase in temperature causes the air molecules to move faster and spread out, which results in a decrease in air pressure. Conversely, a decrease in temperature causes the air molecules to move slower and pack closer together, which results in an increase in air pressure. Therefore, the correct answer to this question is "The air pressure will decrease because the air particles are spread out."
intracellular pathogens, which ones are not? coxiella burnetti bartonella henselae moraxella catarrhalis bifidobacterium breve anaplasma phagocytophilium
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Intracellular pathogens are those that are capable of living and multiplying inside host cells. Some examples of intracellular pathogens include bacteria such as Coxiella burnetii, Bartonella henselae, and Anaplasma phagocytophilium.
These bacteria are able to enter host cells, evade immune responses, and replicate within the cell. This can lead to severe infections and disease.
On the other hand, there are also some bacteria that are not considered intracellular pathogens. Moraxella catarrhalis and Bifidobacterium breve are two examples of bacteria that do not typically reside inside host cells. Instead, they are able to survive and replicate outside of host cells in various environments.
Overall, understanding the characteristics of different bacteria, including whether they are intracellular pathogens or not, is important for developing effective treatments and preventing the spread of disease.
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what differential stain is most important in the diagnosis of tuberculosis?
Answers
The most important differential stain in the diagnosis of tuberculosis is the acid-fast stain, specifically the Ziehl-Neelsen stain or the modified Kinyoun stain. This stain is crucial in identifying the presence of the causative agent of tuberculosis, Mycobacterium tuberculosis, in clinical samples.
The acid-fast stain is particularly useful for tuberculosis diagnosis because the cell wall of M. tuberculosis contains high levels of lipids, such as mycolic acids, which make the bacterium resistant to standard staining methods. In the acid-fast staining technique, a primary stain called carbol fuchsin is applied to the sample and heated. This allows the stain to penetrate the mycolic acid layer and bind to the bacterial cells. The stained cells appear as bright red or pink against a blue or green background. The acid-fast stain helps differentiate acid-fast bacilli, such as M. tuberculosis, from other bacteria or cellular debris present in clinical specimens. It is especially important in the diagnosis of tuberculosis because the characteristic acid-fast property of M. tuberculosis aids in its identification, even in small amounts or in the presence of other microorganisms. Therefore, the acid-fast stain plays a vital role in confirming the presence of M. tuberculosis and is a key diagnostic tool in the management and control of tuberculosis.
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Which situation is most likely to cause an increase in interspecific competition?
A.
Two species of birds evolve to feed on seeds from different types of trees.
B.
Part of a forest is cut down to construct a housing development.
C.
The number of female moose in a population declines due to a disease.
D.
A previously farmed field is allowed to develop into a meadow.
Answers
Answer:
.
Explanation:
.
What are sources of electricity? List as many as you can. Where do people and other animals get energy to move around? Where do plants get energy to live and grow?
Answers
Answer:well it’s The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers such as plants, algae, and cyanobacteria use the energy from sunlight to make organic matter from carbon dioxide and water. This establishes the beginning of energy flow through almost all food webs, and they are five main sources of energy - Solar energy from the sun - GEOTHERMAL-WIND - Biomass from plants - Hydropower from flowing water and from crystalline, the animals have sun has a main energy also from nutrients
Explanation:from scientifical viewing
In your own words, briefly describe the principle of a lateral flow test
Answers
A lateral flow test, also known as a rapid test or an immunochromatographic test, is a diagnostic tool used to detect the presence of specific substances in a sample. It operates on the principle of capillary action and utilizes specialized paper or membrane strips.
The test begins by applying the sample (such as saliva or blood) to one end of the strip, which contains a pad containing specific antibodies or other biomolecular probes. As the sample flows along the strip, it encounters zones that capture and interact with the target substance if it is present. These zones often contain additional antibodies that bind to the target, causing a visible signal, such as the appearance of a colored line.
The migration of the sample is driven by capillary action, requiring no external power source. The simplicity and rapidity of lateral flow tests make them suitable for point-of-care or field settings, providing quick and convenient results.
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----- The complete question is:
In your own words, briefly describe the principle of a lateral flow test. -----
Two sets of plants were grown in two containers. The first container has plants with the genotype ANL/ANL, ygr/ygr. The second container has plants with the genotype anl/anl, YGR/YGR. If the plants in the left container are pollinated by the plants in the right container, what will be the phenotype of the offspring plants?Fast Plants 1 AQ4 A. Purple stem, green leaves B. Purple stem, yellow leaves C. Green stem, green leaves D. Green stem, yellow leaves
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Which situation would most likely result in evolution? Question 12 options: a. A green parrot has an allele for green feathers and an allele for blue feathers. b. A large population continues to grow larger. c. A butterfly predator sees yellow more easily than it does green, and a population of butterflies includes both phenotypes.
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Answer:.
Explanation:
What does the term mutation mean in regards to human genetics?
Answers
Answer:
A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses.
Explanation:
A mutation is a change in a DNA sequence
What is one of the reasons why Gregor Mendel chose to study
Answers
Answer:
Gregor Mendel was the father of the field of genetics, which seeks to explain how traits are passed on from one generation to the next. To study genetics, Mendel chose to work with pea plants because they have easily identifiable traits.
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Some people who take beta blockers get out of breath when they exercise. Explain why beta blockers can have this effect during exercise.
01. 5
You should refer to information given in Table 1.
[6 marks]
please help me
Answers
Answer:
Explanation:
Beta blockers slow the heart rate, which can prevent the increase in heart rate that typically occurs with exercise. This means that it might not be possible for you to reach your target heart rate — the number of heartbeats per minute you typically aim for to ensure you're exercising hard enough.
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Answers
Answer:
The correct answer is heterozygous.
Explanation:
The pea pods are heterozygous for pod color (Gg).
"G" is the dominant gamete and "g" is non-dominant. This explains why the pod in the fourth square is yellow because there is no "G" gamete, which would dominate the "g" gamete and make the pod green.
can you differentiate the disorders of white blood cells? for each complication, drag and drop the values/characteristics that apply to the disease to the box.
Answers
A. Non-Hodgkin's lymphoma is a disorder of white blood cells.
Non-lymphoma Hodgkin's is cancer that starts in your lymphatic, which is part of your immune system. White blood cells called lymphocytes grow aberrantly in non-lymphoma Hodgkin's and can form tumors throughout the body.
People with NHL have a 73% 5-year relative survival rate. However, it's important to remember that survival rates for different types but instead stages of lymphoma can vary greatly.
NHL is just a serious medical condition, but the prognosis is usually favorable. The majority of people with NHL remain alive for no less than 5 years after being diagnosed. However, the condition is more likely to kill older people. Other factors influencing the prognosis include cancer's stage and spread.
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Can you differentiate the disorders of white blood cells? For each complication, drag and drop the values/characteristics that apply to the disease into the box.
A. Non-Hodgkin's lymphoma
B. Over 20 different forms
C. Lymph node enlargement
D. More common than Hodgkin lymphoma
Cells have different membrane carbohydrates if they do different ______.
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ANSWER FAST AND THIS IS NOT A HIGHSCHOOL THING IT IS MIDDLE SCHOOL <3
Which example is ONE specific form of simple diffusion?
A: If water moves into a cell by osmosis, it is moving into an area of higher solute concentration.
B: If water moves into a cell by diffusion, it is moving from an area of higher concentration to an area of lower concentration.
C: If water moves into a cell by osmosis, it is moving into an area of higher water concentration.
D: If water moves into a cell by diffusion, it is moving into an area of higher solute concentration.
Answers
Answer:
c
Explanation: