Answers
Answer:
✔️Facilitated diffusion does not require any of cell energy.
Explanation:
The above structure A is known as Cell Membrane. It is a permeable membrane through which materials are diffused or transported in and out of the cell.
Option A is true for structure A because facilitated diffusion does not require the cell's energy. Facilitated diffusion is passive transport of molecules or ions across the membrane which is spontaneous.
It is passive because facilitated diffusion does not directly require chemical energy from ATP hydrolysis. What happen is that molecules and ions move down their concentration gradient. This movement reflects their diffusive nature.
Related Questions
Which of these is a disadvantage of hydroelectric energy ?
A. Is expensive to build or maintain
B. Has high power plant efficiency
C. Has a long power plant life span
D. Reduces greenhouse gas emissions
Answers
Answer:
A. Is expensive to build or maintain
Explanation:
Hydroelectric energy is a type of energy which is generated from the flow of water. In this energy, water is allowed to fall from a certain height on the turbine. The moving of turbine produces energy. The main disadvantage of hydroelectric energy is that it is very expensive and require high amount of money for the construction and maintenance of hydroelectric power plant. The machinery used for the production of hydroelectric energy is very costly.
You collected a sample from a patient with a suspected sti. After gram staining, you observed this under the microscope. What can you conclude about this microbial agent?.
Answers
I can conclude about this microbial agent that it is gram-negative. They are bacteria.
What are gram-negative bacteria?Gram-negative bacteria are a group of microbes that have a thin peptidoglycan cell wall.
Conversely, Gram-positive bacteria have a thick peptidoglycan coating, composed of around 30 layers of peptidoglycans.
The gram-negative bacteria include different microbial agents such as Pseudomonas aeruginosa, Chlamydia trachomatis, Escherichia coli, and Yersinia pestis.
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some species of animals and plants are currently responding to climate change by extending their range into new territories (True Or False)
Answers
This claim is accurate since some species of plants and animals are presently expanding their habitat into new areas in response to climate change.
What kinds of species are examples?The majority of people define biodiversity as a collection of unique living things with the ability to interbreed. Orcas, fair skinned deer, white pine forests, sunflowers, and minuscule germs that are even too small to be seen with the human eye are a few examples of species.
Do we belong to a species?The billions of individuals that currently inhabit the earth are all descendants of one species, Homo sapiens. Human beings differ among themselves, just like other species do, in terms of everything from size and form to skin tone & eye color. However, we are far more similar than we are different.
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The table below shows digestive enzymes and the reactions that they catalyse. What word goes in blank A?
Answers
Answer:
protein
Explanation:
protein is end product is Amino acid
The word that goes with the blank labeled as A is protein, as protease helps in protein digestion.
What are digestive enzymes?Digestive enzymes are proteins that the body produces to help break down food and aid digestion.
Digestion is the process by which your body uses the nutrients found in food to provide energy, help it grow, and perform vital functions.
Digestive enzymes are essential for splitting down the food you eat. These proteins hasten chemical reactions that convert nutrients into substances that can be absorbed by your digestive tract.
Digestive enzymes are present in your saliva. They are also released by some of your organs, including the pancreas, gallbladder, and liver.
Proteolytic enzymes (proteases) are protein-degrading enzymes, that convert proteins into amino acids. Animals, plants, fungi, and bacteria all produce enzymes.
Thus, the correct option is A.
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Darwin thought that significant evolution was much too slow to be witnessed in a human lifetime. recent experiments by biologists have _____.
Answers
Significant evolution, in Darwin's opinion, moves much too slowly to be seen in a person's lifetime. Recent biological tests have demonstrated that some populations may develop extremely quickly, with significant changes happening over many generations in the lab.
What role does Darwin's theory of evolution play?
Charles Darwin, a scientist of the 19th century, investigated the idea of natural selection. Natural selection provides an explanation for how a species' genetic features might evolve through time. This might result in speciation, or the creation of a new, separate species.The genesis and adaptations of species entered the scientific canon with Darwin's finding of natural selection. The adaptive characteristics of creatures might now be explained by natural processes, much as the occurrences of the inanimate universe, without the need for an Intelligent Designer.Learn more about Darwin here:
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In a sensory pathway, which neuron detects the stimulus and transmits the signal to the spinal cord or brainstem
Answers
Answer:
Afferent neurons.
Explanation:
because in the dorsal roots carry impulses from the body's sensory receptors to the spinal cord where the information begins to be processed and because The ventral horns contain efferent motor neurons which control the body's periphery.
Help! I need help with this ASAP, I'm so confused for this.
Answers
identify if the characteristic is that of a glycoprotein or a lectin.
Answers
Glycoproteins are proteins that have attached carbohydrate molecules, while lectins are proteins that specifically bind to carbohydrates. Therefore, if the characteristic is related to the presence of carbohydrate molecules attached to a protein, it is likely a glycoprotein.
Glycoproteins are proteins that have covalently attached carbohydrate molecules. These carbohydrates can be attached to the protein portion through specific attachment sites. Glycoproteins play important roles in various cellular processes, including cell-cell recognition, cell signaling, and immune responses.
On the other hand, lectins are proteins that have the ability to bind specifically to carbohydrate molecules. Lectins recognize and bind to specific carbohydrate structures, which can be present on the surfaces of cells or on glycoproteins. Lectins are involved in various biological processes, such as cell adhesion, immune responses, and glycoprotein quality control.
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please solve fast in 5 min
Answers
Answer:
(C)
Explanation:
answer"A" can be cancelled as prokaryotic cells don't possess a nucleus.
answer"B" can be cancelled as animal cells don't have cell walls.
answer"D" can be cancelled if you know the cell theory.
which statements best compare the function of an ATP molecule to a DNA molecule
Answers
ATP helps in muscle contraction, active transport, formation of lysosomes, etc., while DNA carries all the genetic information related to an organism.
What do you mean by DNA molecule?The DNA molecule may be defined as the molecule that carries the genetic information for the development and functioning of an organism.
ATP delivers energy for chemical reactions in the cell. DNA maintains and communicates the genetic information of organisms.
Therefore, the above statement that best compares the function of an ATP molecule to a DNA molecule.
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Submit your air quality report for your area, showing seven days, the air quality color for each day, and each day's major pollutants. This information should have been obtained in the previous lesson. Also, write a one-paragraph explanation of where the pollutants in your area most likely come from. Part 2 Consider the area that you live in. In at least one paragraph, describe how each of the following factors could affect air pollution in your area. If none of them would affect you, explain why. Factors to consider: the presence of urban areas, topography (presence or absence of hills and mountains), summer temperatures, latitude (distance from the equator).
Answers
The amount of ozone and particle concentrations in a given area are influenced by a variety of weather-related factors, therefore the weather can have a significant impact on air quality.
What influences the air's quality?The quality of the air is influenced by a variety of climate-related elements, including temperatures, cloud cover, humidity, precipitation frequency and intensity, wind patterns, and others.
In India, more than 90% of people live in areas where the air quality is below WHO limits. The biggest sources of pollution are factories, coal-fired power plants, and automobiles.
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How are meiosis and mitosis similar?
O A. They happen at the same time.
B. They both produce new cells.
C. They both produce sex cells.
D. They both produce diploids.
Answers
Answer:
Both creates new cells
Explanation:
Meiosis and mitosis both results in the production of new cells. Therefore, the correct statement is option B.
What is meiosis?Mitosis and meiosis result in cell division and the production of new cells. In mitosis, two genetically identical daughter cells are formed by a parent cell and are responsible for the asexual reproduction of organisms.
In meiosis, four daughter cells are formed from a single parent cell which is genetically diverse, and each daughter cell receives half the number of chromosomes present in the parent cell. Meiosis is the process by which gametes (sex cells) are produced in organisms, and it is responsible for the sexual reproduction of the organisms.
Therefore, both mitosis and meiosis result in the production of new cells. However, mitosis results in the production of two identical daughter cells, whereas meiosis results in the production of four genetically diverse daughter cells.
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How does nondisjunction affect the production of gametes?
Answers
Answer:
Nondisjunction Produces Abnormal Gametes. If nondisjunction occurs during anaphase I of meiosis I, this means that at least one pair of homologous chromosomes did not separate. The end result is two cells that have an extra copy of one chromosome and two cells that are missing that chromosome. Click to see full answer.
Explanation:
Which of the following are needed to have a fire?
Group of answer choices
Heat
Combustion
Oxygen
Fuel
Answers
Answer:
Heat, combustion, and oxygen
Explanation:
All of these things r needed to make a fire except fuel.
An airplane has crashed on a deserted island off the coast of Fiji. The survivors are forced to learn new behaviors in order to adapt to the situation and each other. This is an example of which concept
Answers
The concept illustrated in this scenario is "social adaptation" or "cultural adaptation."
Social adaptation refers to the process by which individuals modify their behaviors, beliefs, and practices to fit into a new social or environmental context. In the case of the survivors stranded on a deserted island, they are forced to learn new behaviors in order to adapt to their changed circumstances and the presence of other survivors.
They may need to establish new social norms, develop communication strategies, cooperate for survival tasks such as hunting or building shelters, and resolve conflicts. The survivors' adaptation involves not only adjusting to the island's physical challenges but also forging a new social order and collective identity in order to survive and thrive in their changed environment.
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The complete question is:
An airplane has crashed on a deserted island off the coast of Fiji. The survivors are forced to learn new behaviors in order to adapt to the situation and each other. This is an example of which concept?
Is the hydrolysis of ATP endergonic or exergonic?
Answers
Explanation:
exergonic reaction is the right answer
What is DNA barcoding?
Answers
Answer:
A DNA barcode is a short, standard gene segment of an organism that has been identified in a gene bank, used to identify unknown species by comparison with the DNA sequence of the gene bank. .
Like nutrients and water, energy also recycles through an ecosystem,True Or False?
Answers
Answer:
Explanation:
True
16. Describe the process of dune formation and colonization by plants: Name some of the plant species we would expect to see from those closest to the beaches & as we moved through the dunes on a barrier island on the Georgia Coast, and indicate where they would be found (which of the portion of the successional stages? You need at least 3 different portions of the dune community/stages of dune formation and 1-2 plants per area/subcommunity) What type of succession is this?
Answers
Dunes form from sediment deposition on the beach in response to wind and ocean currents. When sand grains are transported by the wind, they settle on the leeward slope and accumulate over time to form dunes. Dunes start as embryonic foredunes and develop into mature and stabilized sand dunes as a result of plant colonization.
The formation of dunes is a result of a process called dune building. Sand dunes on barrier islands are formed in successive stages. The first stage is the embryonic stage where the sand dunes begin to form. The second stage is the foredune stage where sand dunes form close to the beach. The third stage is the backdune stage where sand dunes are farther from the beach and the vegetation has grown more.
The last stage is the climax stage where the sand dunes have reached their final height and the vegetation is at its fullest. There are various plant species that can be seen as one moves through the dunes on a barrier island on the Georgia Coast. These include: Beach morning glory (Ipomoea pes-caprae) on the foredune in the embryonic stageSea oats (Uniola paniculata) and sea rocket (Cakile edentula) on the foredune in the foredune stageSouthern live oak (Quercus virginiana), yaupon holly (Ilex vomitoria), and American beachgrass (Ammophila breviligulata) in the backdune in the backdune stage Saltmeadow cordgrass (Spartina patens) and marsh elder (Iva frutescens) in the climax dunes in the climax stage.
This type of succession is known as primary succession, which is the development of plant communities in areas that have not previously supported life.
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How are all paths that have a displacement of zero similar?
30 POINTS!
PLS NO SAMPLE
Answers
Answer:
Displacement is identified as the net movement of a thing with detail to its initial location. One may journey out of his city and come back. ... This is true for all trails that have zero displacement that they all go back to their initial position.
Explanation:
Displacement is identified as the net movement of a thing with detail to its initial location. One may journey out of his city and come back.
Explanation:
The other guys response just want to say that its correct
which is not a primary effect of central nervous system depressants? group of answer choices reduced inhibition increased respiration rate increased drowsiness reduced muscular coordination
Answers
"increased respiration rate" is not a primary effect of central nervous system depressants.
Central nervous system depressants are substances that slow down brain activity and produce a calming effect. These substances generally produce the following effects: reduced inhibition, increased drowsiness, and reduced muscular coordination. Increased respiration rate is not a primary effect of central nervous system depressants.
Central nervous system depressants work by decreasing activity in the brain, specifically in the areas that control alertness and physical coordination. This can lead to drowsiness, relaxation, and lowered inhibitions, as well as reduced muscular coordination. Central nervous system depressants also have an effect on respiration, but the primary effect is not an increase in respiration rate. In fact, some central nervous system depressants, such as benzodiazepines, can have an effect of slowing down respiration.
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Which phase of cell division is shown?
Exploring mitosis.
anaphase II
telophase I
prophase I of meiosis
telophase II
Answers
Answer:
im assuming its the same question i had, i took the quiz and the answer was telophase I
Explanation:
like i said i took the k12 quiz and got 100%
The phase shown here is anaphase. the correct option is A.
What is anaphase?Anaphase is the stage of mitosis that occurs after metaphase, during which replicated chromosomes are split and newly replicated chromosomes are moved to opposite poles of the cell.
The missing image is attached below.
The image is showing the split of chromosomes, so it is indicating anaphase of cell division.
Thus, the correct option is A.
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Which hormone is responsible for controlling sperm production?
Answers
Answer:
The most important hormone involved in controlling sperm production is a steroid called testosterone. This is produced in the testis itself, by the Leydig cells (see Figure 12a). The testosterone is released from the Leydig cells between the tubules, and taken up by the neighbouring Sertoli cells.
Answer:
The most important hormone involved in controlling sperm production is a steroid called testosterone.
Which of these is true about DNA, proteins, and the expression of genetic traits? A. Enzymes break down DNA, releasing amino acids that join to form proteins and express various traits. B. DNA is mutated by a chemical passed from parents to offspring to form proteins that express traits. C. Genes in DNA code for the production of proteins, which cause traits to be expressed. D. Proteins bind to DNA, which activates them and forces them to express certain traits.
Answers
Answer:
C. Genes in DNA code for the production of proteins, which cause traits to be expressed.
Explanation:
A. Enzymes break down DNA, releasing amino acids that join to form proteins and express various traits. - this is false. DNA is not made up of amino acids, it is made up of nucleotides.
B. DNA is mutated by a chemical passed from parents to offspring to form proteins that express traits. - this is false. DNA itself is passed from parents to offspring. The DNA is transcribed into mRNA which is translated into proteins that express traits.
C. Genes in DNA code for the production of proteins, which cause traits to be expressed. - this is true. Genes are sections of DNA that encode for specific proteins. The structure and activity of these proteins determines all the functions in the cell and the body, and therefore specify all our traits.
D. Proteins bind to DNA, which activates them and forces them to express certain traits. - this is false. While proteins bind to DNA, this is not what causes them to become active and carry out their function to specify traits.
draw eyecansee in an active state bound to vision, following what you know about tyrosine receptor kinases, and notate any post-translational modifications that occur in the active state
Answers
In an active state, opsin is bound to a chromophore (e.g., retinal) and undergoes a conformational change upon light absorption, initiating the vision process.
In an active state, opsin is bound to a chromophore (e.g., retinal) and undergoes a conformational change upon light absorption, initiating the vision process. This activation is related to G-protein-coupled receptors (GPCRs) rather than tyrosine receptor kinases. Post-translational modifications, such as phosphorylation, can occur in the active state to modulate the activity of the receptor.
However, I cannot draw the structure here, as I am a text-based bot. I recommend searching for "active opsin structure" or similar terms in scientific literature or online databases to find visual representations of the molecule in its active state with post-translational modifications.
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Relevant Scenario: When explaining dominant and recessive traits to a younger family member, they respond, "Well chances are I can probably taste PTC, since dominant traits are more common." How might you address this misconception?
Answers
It's crucial to avoid inferring anything about a trait's prevalence from its dominance or recessive status alone.
What is the genetic basis for dominant and recessive traits?Alleles can be either dominant or recessive; dominant refers to the trait that is present or displayed, whilst recessive refers to the feature that is not. Dominant alleles, such as B, are thought of as the uppercase version of a letter. Recessive alleles are represented by a letter in lower case; b.
What is their reaction when you explain dominant and recessive features to a younger family member?A younger family member responds, "Well chances are I can definitely taste PTC, since dominant qualities are more prevalent," after you explain dominant and recessive traits to them.
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1. List four practical applications of environmental
surveillance. 2. Suggests three ways to interrupt the chain
infection.
Answers
1. Four practical applications of environmental surveillance are:
2. Three ways to interrupt the chain of infection are:
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A computer model of the spread of a disease through a human population
can be used to make predictions about changes in case numbers over time.
Which sentence best describes a benefit of using a computer model of the
spread of a disease?
A. It gives details about how each person might be affected by the
disease.
B. It displays information about how a possible treatment for the
disease will affect a specific individual.
C. It can be used to study details of the disease that are too small to
be observed directly.
D. It allows scientists to compare the possible outcomes of several
different decisions.
Answers
The most effective way to describe a benefit of employing a computer model of disease transmission It can be used to examine disease-related details that are too small to be seen directly.
The correct option is C.
How do computers aid the medical profession?Computers can now operate lab apparatus, blood pressure and heart rate monitors, and other crucial medical devices, as well as alert staff when something is wrong. In some scenarios, computers can help doctors perform treatments, improving the safety and convenience of the environment for everyone involved—staff members and patients.
Why do models get utilized in medicine?In order to comprehend and explain health behavior and to direct the selection, creation, and use of interventions, theories and models are employed in program planning.
What benefits may computational modeling provide to medical research and care?tracking contagious illnesses The most efficient therapies are found using computational models, which are also used to monitor and modify interventions to stop the spread of disease.
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Artificial plant hormones are boon to the farmers. Do you agree or not? Justify with three points.
Answers
Answer:
I agree
Explanation:
Artificial Plant Hormones they are analogues to natural plant growth regulators, with similar chemical structure but different composition and equivalent responses in the plant physiology, although usually at different intensity levels. IBA and NAA are synthetic auxins similar to IAA, the natural compound
Farmers will be able to ripen and grow more crops faster therefore they will make more money when they come to sell what they have grown. It can get rip of pests such as weeds in your garden so they do not grow back/grow back as quick. Farmers can control how and when and where they grow.
geobacter stearothermophilus is frequently used as a challenge organism for sterilization validation studies. what does this mean?
Answers
This means that it is deliberately introduced into a sterilization process to test the effectiveness of the procedure.
Geobacter stearothermophilus is a thermophilic bacterium commonly used as a challenge organism for sterilization validation studies. Since it is highly resistant to heat, G. stearothermophilus provides a rigorous test for the sterilization method.
If the process successfully eliminates this organism, it indicates that the sterilization technique is effective and can be relied upon to maintain a sterile environment. In summary, using G. stearothermophilus as a challenge organism helps ensure the quality and safety of sterilization procedures.
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