write a hypothesis based on observations and scientific principles of the plasma membrane
Answers
Answer:
but you dont have liek a vid or something how do I observate?
Explanation:
Related Questions
ILL GIVE BRAINLIEST When an organism is bred for a particular characteristic or trait it is called
A) Selective Breeding
B) Natural Selection
C)Survival of the fittest
D)Gene Malformation
Answers
Answer:
A. Selective breeding
Explanation:
Imagine your at school or where ever you wanna be and you see a girl/boy that you really like because of their lips or how great their hair looks or the size of their eyes or what ever else. ( Sorry for some of those very visual images there... ) That's called selective breeding.
Answer:
answer me pls
Explanation:
what is the advantage of using these mutants rather than wild‑type yeast for large‑scale ethanol production?
Answers
Mutants are advantageous over wild-type yeast for large-scale ethanol production due to their higher tolerance towards stress factors, such as ethanol concentration and temperature. Mutants can produce ethanol at a faster rate and higher yield than wild-type yeast, leading to more efficient and cost-effective ethanol production.
Large-scale ethanol production involves the fermentation of sugars into ethanol by yeast. Mutants are genetically modified strains of yeast that have specific mutations that alter their characteristics, such as increased ethanol tolerance and faster ethanol production. These mutations can be induced through chemical or radiation treatment, or through genetic engineering techniques.Mutants have several advantages over wild-type yeast for large-scale ethanol production. Firstly, they have a higher tolerance towards stress factors such as ethanol concentration and temperature, allowing for a more efficient fermentation process.
Secondly, they are able to produce ethanol at a faster rate and higher yield than wild-type yeast, leading to increased productivity and cost-effectiveness. Finally, mutants can be engineered to produce specific types of ethanol or other biofuels, allowing for more customization and flexibility in the production process. Overall, the use of mutants in large-scale ethanol production can lead to more efficient, cost-effective, and sustainable biofuel production.
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poorly controlled diabetes mellitus, which results in high blood glucose, often causes glucose and ketones to be found in the urine. explain these findings.
Answers
Poorly controlled diabetes mellitus can cause glucose and ketones to be found in the urine due to a lack of insulin, a hormone that regulates glucose metabolism.
Insulin deficiency or resistance leads to high levels of glucose in the blood, which exceeds the capacity of the kidneys to reabsorb all of it. This results in glucose being excreted in the urine, a condition known as glycosuria. Additionally, in the absence of adequate insulin, the body breaks down fat as an alternative energy source, leading to the production of ketones.
Excessive ketones in the bloodstream can cause ketones to spill over into the urine, a condition known as ketonuria. These findings indicate poor glycemic control and are associated with diabetic complications.
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Poorly controlled diabetes mellitus can cause high levels of glucose in the blood due to inadequate insulin production or utilization. When the blood glucose levels are too high, the kidneys are unable to reabsorb all of the glucose and it spills over into the urine. This condition is known as glycosuria.
Additionally, in the absence of sufficient insulin, the body starts to break down fat for energy and produces ketones as a byproduct. These ketones can also be detected in the urine in a condition known as ketonuria. Therefore, finding glucose and ketones in the urine of a person with poorly controlled diabetes is a common sign of uncontrolled blood glucose levels and can be indicative of the need for adjustments in diabetes management.
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Answer FOUR out of the five options below in your own words, giving examples in each: a) Describe both ontogenetic and population variation;
b) Describe how taxonomy is distinct from systematics;
c) Describe functional morphology and how phylogenetic history constrains form and function in organisms;
d) Describe the differences between good biostratigraphic index fossils and good facies fossils;
e) How are plate tectonics and the diversity of marine life linked during the Phanerozoic Eon?
Answers
a) Both Ontogen Ontogenetic and population variation is the variation observed in the developmental processes of an organism, including the individual life history. Such variations occur within an individual life cycle from a single fertilized egg to a fully grown adult organism.
It is the variation that can be observed in the gene frequencies or morphological characteristics of populations.Example: In plants, the height of the plant is an example of ontogenetic variation while the thickness of a plant’s leaves is an example of population variation.b) The distinction between Taxonomy and SystematicsTaxonomy is a biological discipline that deals with the classification, naming, and identification of organisms. c) Functional morphology and the constraint of form and function.
Functional morphology is a subfield of biology that investigates the relationship between the form and function of living organisms. For example, the wings of bats and birds both have different functional morphology and are constrained by their phylogenetic histories.d) The differences between Good Biostratigraphic Index Fossils and Good Facies FossilsGood Biostratigraphic Index Fossils are the fossils that are used to identify and date the geological time periods.
They are used to reconstruct the ancient environment in which the organism lived.e) The link between Plate Tectonics and Marine life diversity in the Phanerozoic EonPlate tectonics are believed to be one of the primary causes of the diversity of marine life during the Phanerozoic Eon. For example, the separation of the South American and African plates created a new ocean called the South Atlantic Ocean, which led to the diversification of marine life in the region.
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the effect of the relationship between post- cardiotomy neutrophil/lymphocyte ratio and platelet counts on early major adverse events after isolated coronary artery bypass grafting.
Answers
In this study, we aimed to investigate the role of postcardiotomy neutrophil, lymphocyte, and platelet counts in predicting major adverse events after coronary artery bypass grafting.
What is postcardiotomy?In terms of physiology, respiration is the transfer of oxygen from the external environment to the cells inside tissues and the removal of carbon dioxide in the opposite direction, that is, back into the external environment.
The biochemical meaning of respiration, in contrast to the physiological definition, refers to a metabolic process whereby an organism receives energy (in the form of ATP and NADPH) by oxidizing nutrients and releasing waste products. Even though cellular respiration and the subsequent maintenance of life in animals depend on physiologic respiration, the two processes are different: cellular respiration occurs within individual organism cells, whereas physiologic respiration deals with the diffusion and transport of metabolites between the organism and the external environment.
Lung gas exchanges are carried out by ventilation and perfusion.
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Write a caption to describe the events shown in the illustration.
Answers
Answer:
the plasma is go out from the capillaries, therefore the capillary is incomplete because in the capillaries the plasma is recused, So the plasma is create illustration
P S Q R The biological levels of organization range from a single organelle all the way up to the biosphere in a highly structured hierarchy. Multicellular organisms are organized from the simplest to most complex: cells, tissues, organs, organ systems, organisms. Evaluate the model above. Select ALL of the statements that accurately depict the examples shown in the model. A) R shows an animal cell. B) O shows types of tissue. P shows organs in the endocrine system. D) P shows an organ system, the digestive system. E) S shows an organ system, the digestive system.
Answers
Answer: the red thing pretend is blood and blue thing is water you first ta
Explanation:
Answer:
A) R → Q → P → S
Explanation:
I just took the test on USA Test Prep
A part of a sequenced chromosome has the sequence on one strand
ATTGCATCCGCGCGTGCGCGCGCGATCCCGTTACTTTCCG Enter the longest part of this sequence that is most likely to take up the Z conformation.
Answers
The longest part of the given sequence that is most likely to take up the Z conformation is "CGCGTGCGCGCGCGATCCC".
The Z conformation of DNA is a left-handed double helix that is characterized by a zigzag backbone pattern. It occurs when the DNA helix is under torsional stress, such as when there are alternating purine-pyrimidine sequences.
The sequence "CGCGTGCGCGCGCGATCCC" contains multiple alternating purine-pyrimidine sequences (CG and AT), which can cause torsional stress in the DNA helix and promote the formation of the Z conformation. The presence of this sequence may have functional implications, as Z-DNA has been shown to play a role in gene expression and regulation.
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What equilibrium concentration changes might you expect upon decreasing the pH in the mitochondrial matrix? a. increase of malate and decrease of oxaloacetate b. decrease of malate and decrease of oxaloacetate c. decrease of malate and increase of oxaloacetate d. increase of malate and increase of oxaloacetate
Answers
Upon decreasing the pH in the mitochondrial matrix, the expected equilibrium concentration changes would be a decrease in malate and an increase in oxaloacetate
The pH level plays a crucial role in the regulation of metabolic processes within the mitochondrial matrix. In this scenario, when the pH is decreased in the mitochondrial matrix, it shifts the equilibrium of certain reactions involving malate and oxaloacetate.
Malate and oxaloacetate are interconverted by the enzyme malate dehydrogenase. The reaction catalyzed by malate dehydrogenase is reversible and depends on the NAD+/NADH ratio, as well as the pH. Lowering the pH in the mitochondrial matrix would favor the formation of oxaloacetate from malate.
Decreasing the pH leads to an increase in the concentration of protons (H+) in the mitochondrial matrix. The increased concentration of protons can drive the equilibrium of the malate dehydrogenase reaction toward the production of oxaloacetate. Thus, malate concentrations would decrease, and oxaloacetate concentrations would increase under these conditions.
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The behavior of allosteric enzymes a. does not play any role in feedback inhibition in metabolic pathways b. is strongly dependent on the presence of metal ions c. is related to their ability to hydrolyze themselves d. depends on changes in their quaternary structure on binding of substrates or inhibitors
Answers
Answer:
The correct answer is d
Explanation:
Allosteric enzymes have multiple binding sites to different ligands called allosteric sites (different from the active site), these ligands can modify their kinetic properties. They are generally made up of more than one polypeptide chain, and have a quaternary structure, an enzyme with a quaternary structure can bind more than one substrate molecule. An allosteric enzyme is an enzyme whose activity is regulated by an allosteric center, which is a site, other than the active center of the enzyme, to which a regulator (called an allosteric regulator) binds in a reversible and non-covalent manner. The binding of this regulator modifies the three-dimensional structure of the enzyme and affects the configuration of the active site, thus increasing or decreasing its activity, depending on the case. The allosteric sites present in regulatory enzymes is where allosteric effectors or inhibitors are attached, causing a conformational change in the substrate binding site or catalytic site, thus regulating enzyme activity.
Answer:
d. depends on changes in their quaternary structure on binding of substrates or inhibitors
Explanation:
Allosteric enzymes are oligomeric proteins composed of subunits or polypeptidic chains. They have a quaternary structure -many subunits and active sites- and express two states, R and T. Both states establish an equilibrium, with or without a joint ligand.
When the transition from one state to the other occurs, symmetry is conserved, but the affinity of a site to a ligand is altered. When a substrate joins one of the sites, it affects other binding sites.
Allosteric enzymes can change their conformation, exhibiting active and inactive conformations as a result of substrate binding at the activated center and regulatory molecules at other binding sites -allosteric centers-.
Describe the function and purpose of the Na+/K+ pump in re-establishing the resting membrane potential?
Answers
The function of the Na+/K+ pump in re-establishing the resting membrane potential is that the Na+K+-ATPase pump helps to maintain osmotic equilibrium and membrane potential in cells.
What is the resting membrane potential?The resting membrane potential is the voltage across a given cell membrane during the resting stage.
The purpose of the Na+/K+ pump in re-establishing the resting membrane potential is for the sodium and potassium to move against the concentration gradients.
The Na+ K+-ATPase pump maintains the gradient of a higher concentration of sodium extracellularly and a higher level of potassium intracellularly.
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Scientific explanations must always be based on ____
Answers
Land plants no longer required water as a medium for reproduction with the evolution of. 1 fruits and roots, 2 flowers and leaves, 3 cell walls and rhizoids, 4 lignified stems, 5 seeds and pollen
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Land plants no longer required water as a medium for reproduction with the evolution of seeds and pollen. Seeds and pollen are specialized structures that allow plants to reproduce without the need for water.
This development has allowed plants to colonize a variety of habitats on land, including arid environments, where water is scarce. Land plants evolved from aquatic ancestors, and the earliest land plants likely required water for reproduction. However, as plants adapted to life on land, they developed structures that allowed them to reproduce without water. Fruits and roots are important structures for land plants, but they are not directly involved in reproduction.
Flowers and leaves are also important for land plants, but they evolved after seeds and pollen and are not required for reproduction in all plant species. Cell walls and rhizoids are important adaptations for land plants, but they are not directly related to reproduction. Lignified stems are important for structural support in land plants, but they are not directly involved in reproduction.
Therefore, the correct answer is 5 seeds and pollen.
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Identify the structure in the picture labeled as D in the picture above. (Level 1)
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Answer:
which picture. ??? no pic no help sorry
// Please help !!!!!!!!!!
Answers
Answer: Caterpillars and Meadow voles
he diffusion coefficient for sodium ions crossing a biological membrane 12 nm thick is 1.5×10
−4
m
2/k
. What flow rate of sodium ions would move across an area of 12 nm×12 nm if the concentration difference
Answers
The flow rate of sodium ions across an area of 12 nm × 12 nm is given by 1.25 × \(10^4\)times the concentration difference (ΔC) in units of m/s.
The flow rate of sodium ions across a biological membrane can be determined using Fick's law of diffusion, which states that the flow rate (J) is equal to the diffusion coefficient (D) multiplied by the concentration difference (ΔC) divided by the membrane thickness (L).
In this case, the membrane thickness is given as 12 nm, and the diffusion coefficient for sodium ions is 1.5 × \(10^{-4} m\²/s\).
To calculate the flow rate, we need to convert the area into square meters.
The given area of 12 nm × 12 nm is equal to (12 nm) × (12 nm) = \(144 nm\²\).
Converting \(nm\²\) to \(m\²\), we get
(\(144 nm\²\)) × (\(1 m\²/10^{18} nm\²\)) = 1.44 × \(10^{-17} m\²\).
Now we can substitute the values into the formula:
J = D × ΔC / L
J = (1.5 × \(10^{-4} m\²/s\)) × ΔC / (12 nm)
J = (1.5 × \(10^{-4} m\²/s\)) × ΔC / (12 × \(10^{-9\) m)
J = (1.25 × \(10^4\) ΔC) m/s
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The correct question is:
He diffusion coefficient for sodium ions crossing a biological membrane 12 nm thick is 1.5 × \(10^{-4}m\) 2/k. What flow rate of sodium ions would move across an area of 12 nm × 12 nm if the concentration difference.
Which star is four times bright as our sun
Answers
Answer:
The star VY Canis Majoris
VY Canis Majoris
Hope this helped! :)
jessie has elevated levels of triacylglycerides and fatty acids and normal levels of cholesterol. however, there is no evidence of ketone body formation. which statement best explains jessie's test results?
Answers
The statement which best explains Jessie's test results is b)She has elevated levels of triglycerides and fatty acids, because she recently ate a large meal. So, option b is correct.
A fatty substance (TG, triacylglycerol, TAG, or triacylglyceride) is an ester gotten from glycerol and three unsaturated fats (from tri-and glyceride).[1] Fatty oils are the fundamental constituents of muscle versus fat in people and different vertebrates, as well as vegetable fat. They are likewise present in the blood to empower the bidirectional transaction of fat and blood glucose from the liver, and are a significant part of human skin oils.
Many kinds of fatty substances exist. One explicit grouping centers around soaked and unsaturated sorts. Immersed fats have no C=C gatherings; unsaturated fats highlight at least one C=C gatherings. Unsaturated fats will generally have a lower melting point than immersed analogs; subsequently, they are in many cases fluid at room temperature.
Hence, option b is correct.
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(Complete question) is:
Jessie has elevated levels of triacylglycerides and fatty acids and normal levels of cholesterol. However, there is no evidence of ketone body formation. Which statement best explains Jessie's test results?
a)She has elevated levels of triglycerides and fatty acids, because she is obese.
b) She has elevated levels of triglycerides and fatty acids, because she recently ate a large meal.
c)She does not produce ketone bodies due to her athleticism
d)She does not produce ketone bodies because of her vegan diet.
e) She does not produce ketone bodies due to a metabolic impairment. MacBook Air
Use the following table to answer the question:
This table shows the codons found in messenger RNA. Using this information, what sequence of nucleotides in the template strand of DNA could code for the polypeptide sequence Phe-Ser-Gln?
3' UUC-UCU-CAA 5'
3' AAG-AGA-GTT 5'
3' TTC-TCT-CAA 5'
3' AAG-AGA-GUU 5'
the answer is 3' AAG-AGA-GTT 5' :)
Answers
The polypeptide Phe-Ser-Gln could be encoded for by the nucleotide sequence UUC-UCU-CAA in the template strand of DNA.
What is the genetic code?
The triplets of nucleotides that code for a specific amino acid in the developing polypeptide are indicated by the genetic code. These triplets, or codons, serve to identify the protein sequence during transcription and subsequent translation .In conclusion, the polypeptide sequence Phe-Ser-Gln could be encoded for by the nucleotide sequence UUC-UCU-CAA in the template strand of DNA.
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Can someone think about a question on Cellular respiration? Help
Answers
Answer:
What is the name of the high-energy molecule used by cells?
During radioactive decay a parent isotope is converted to a daughter isotope.
True
or
False
Answers
Answer:
true :)
Explanation:
For each genotype below indicate whether it is het3rozygous or hom0zygous.
Answers
Answer: Het3rozygous genotypes are the ones with a capital letter and a lowercase letter; Hom0zygous genotypes are the ones with either two capitals or two lowercase letters
Explanation:
If an organism has 50 chromosomes how many chromosomes would be found in each gamete?
Answers
Answer:
25
Explanation:
each contains half of the chromosomes to create a zygote.
50/2 = 25
Are dolphins mammals?
Answers
Answer: Yes sis, Dolphins are mammals!
Explanation: there is no need for an explanation!
12. A farmer is struggling to control the population of a certain insect on his farm. After researching population control techniques, he discovers that a particular bird is a predator of this insect. The farmer purchases a number of these birds and releases them onto his farm. How might the farmer's action most likely have a negative impact on the ecosystem
Answers
The farmer's action most likely have a negative impact on the ecosystem because may be there is no predator or controlling agent of that bird.
Why introduction of new bird cause problem?We know that one organism is responsible for controlling the population of other organism so if such type of controlling agent is present, the organism grow rapidly and can harm the whole ecosystem.
So we can conclude that farmer's action have a negative impact on the ecosystem due to presence of no predator or controlling agent of that bird.
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Answer: the birds will consume beneficial insects along with the pest species.
Explanation:
WILL AWARD 70 points help ASAPPP
Which of the following is released from ATP and therefore provides “energy”?
A) water
B) Pi
C) glucose
D) ADP and Pi
E) ADP only
Answers
Pi or inorganic phosphate is released from ATP and therefore provides energy.
What is ATP?It is the energy-carrying molecule found in the cells of all the living things. It is a nucleotide, which comprises three main parts, that is,
The nitrogenous baseAdenineRibose sugarA chain of three phosphate groups combined to riboseThe tail of phosphate is the actual source of energy, which is tapped by the cell. The accessible energy is present within the bonds between the phosphates and is discharged when the bonds are dissociated. It takes place via the supplementation of a water molecule, the process known as hydrolysis.
Generally, only the outer phosphate is withdrawn from the ATP to produce energy, when this takes place ATP get transformed to ADP or adenosine diphosphate.
Thus, the correct answer is option B, that is, Pi.
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All human beings differ from one another by roughly what percentage of their total DNA?
Answers
Answer:
All human beings are 99.9 percent identical in their genetic makeup. Differences in the remaining 0.1 percent hold important clues about the causes of diseases.
Write the feature if the class cyclostomata
Answers
All stars
reflect light from the sun.
b. appear to wander off their star paths.
a.
c. produce their own light.
d. All of the above.
Answers
Answer:
option c. produce their own light.
the glomerulus is a unique high-pressure capillary bed because the
Answers
The glomerulus is a unique high-pressure capillary bed in the kidneys. This filtration bed is considered high pressure due to the type of vessels feeding and draining it. The afferent arteriole feeding the glomerulus is larger in diameter than the efferent arteriole draining the bed.
This anatomical characteristic makes the blood entering the bed to be under high pressure and leaves the bed under lower pressure. This pressure differential between the two arterioles forces fluids and solutes through the walls of the capillaries and into the urinary tubules for further filtration. Therefore, the larger diameter of the afferent arteriole provides a higher volume of blood under higher pressure to the glomerulus, increasing the efficiency of the filtration. The smaller diameter of the efferent arteriole slows the blood flow, increasing the pressure inside the capillaries and maintaining the high pressure in the bed. This anatomical feature provides a unique and efficient filtration mechanism to the kidneys.
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complete question: The glomerulus is a unique high-pressure capillary bed, because the ______ arteriole feeding it is larger in diameter than the ______ arteriole draining the bed.