[tex] \large { \pink { \sf \: ⿻ANSWER⿻}}[/tex]
They are classified on the basis of their physical features- Shape and Appearance.
The four basic shapes of bacteria are Coccus (spherical or ovoid), bacillus (rod-like), vibrio (comma-shaped ), and spirilla (spiral or helical shaped).
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What compound do you expect to be removed from the organic layer of the organic layer is extracted with 1 m naoh solution?
Hydrochloric acid (HCl) and brine both compound expect to be removed from the organic layer extracted with 1 m NaOH solution.
What is extraction?Using a solvent, a component of interest is selectively removed from a mixture during extraction. The process has been utilized to form the phase separation with the solvent in one phase, and the solute to be present in another phase.
The extraction process can be differentiated based on the phase of the solute and solvent. For example, solid-liquid, liquid-liquid, solid-gas and others.
The extraction with the use of the NaOH forms the solute to lose an electron to the hydroxide of the NaOH and forms the layer of the negative acid. The use of Brine and HCl forms to bond with the organic layer and mediate the extraction process.
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________ is the major intermolecular attraction responsible for the relatively high boiling points of alcohols.
Answer:
Hydrogen bonding is the major intermolecular attraction responsible for the relatively high boiling points of alcohols.
What is the ph of a solution which is 0. 025 m in weak base and 0. 039 m in the conjugate weak acid ( a = 7. 1 × 10−6)?
The pH of the solution is 4.96.
pH measures the amount of hydrogen and hydroxide ions in a solution and shows how acidic or alkaline it is.
Weak bases are the solutions to substances that do not dissociate completely in water. Conjugate acids are the product formed by the base and have a difference of one proton.
Using the base dissociation constant, Ka
pKa can be calculated as,
[tex]pKa = - log (Ka)[/tex]
[tex]= - log (7.1 * 10^-6)[/tex]
[tex]= 5.15[/tex]
0. 025 M in the weak base and 0. 039 M in the conjugate weak acid.
Therefore, a weak base and its conjugate acid are present in equal proportions in buffer solution. As we are aware, the Henderson-Hasselbalch equation can be used to determine the pH of a buffer solution that comprises a weak base and its conjugate acid.
[tex]pH = pK + log [\frac{A^-}{HA} ]\\[/tex]
[tex]= 5.15 + log( \frac{0.025}{0.037})[/tex]
[tex]=5.15 + log 0.64[/tex]
[tex]=5.15-0.19[/tex]
[tex]=4.96[/tex]
Therefore, the pH of the solution is 4.96.
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How many grams of water are made from the reaction of 16.0 grams of o2? given the reaction: 2h2 o2 --> 2h2o
Answer:
18.0 g H₂O
Explanation:
To find the mass of water (H₂O), you need to (1) convert grams O₂ to moles O₂ (via the molar mass), then (2) convert moles O₂ to moles H₂O (via mole-to-mole ratio from equation coefficients), and then (3) convert moles H₂O to grams H₂O (via the molar mass). It is important to arrange the conversions in a way that allows for the cancellation of units. The final answer should have 3 sig figs to match the sig figs of the given value.
Molar Mass (O₂): 2(15.998 g/mol)
Molar Mass (O₂): 31.996 g/mol
Molar Mass (H₂O): 2(1.008 g/mol) + 15.998 g/mol
Molar Mass (H₂O): 18.014 g/mol
2 H₂ + 1 O₂ -----> 2 H₂O
16.0 g O₂ 1 mole 2 moles H₂O 18.014 g
--------------- x ---------------- x --------------------- x ----------------- = 18.0 g H₂O
31.996 g 1 mole O₂ 1 mole
What is regular (specular)
reflection?
A. when all light rays come in at different angles of
incidence
B. when the rays of light reflect at different angles
C. when all light rays reflect at the same angle
D. when all light rays are perpendicular
Answer:
specular reflection reflects all light which arrives from a given direction at the same angles where diffus reflection reflects light in a broad range of direction
Rutherford's scattering experiment demonstrated that the mass of an atom was uniformly distributed throughout its volume.
a. true
b. false
Rutherford's scattering experiment demonstrated that the mass of an atom was uniformly distributed throughout its volume this statement is incorrect.
Hence, Option B is correct answer.
What is Rutherford's Scattering Experiment ?Rutherford's Alpha Scattering Experiment demonstrated that Rutherford bombarded most of the alpha particles passed straight through the gold foil. Rutherford observed that most part of the atom is empty.
What is Thomson Atomic Model ?The mass of an atom was uniformly distributed throughout its volume this experiment was given by Thomson Model.
Thus from the above conclusion we can say that Rutherford's scattering experiment demonstrated that the mass of an atom was uniformly distributed throughout its volume this statement is incorrect.
Hence, Option B is correct answer.
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Determine the end (final) value of n in a hydrogen atom transition, if the electron starts in and the atom emits a photon of light with a wavelength of 486 nm.
The end (final) value of n in a hydrogen atom transition is 2.
Using the Rydberg formula ;
1/lamda = R ( 1/[tex]n_{f} ^{2}[/tex] - 1/[tex]n_{i} ^{2}[/tex] )
where , lamda = wavelength = 486 nm = 486 ×[tex]10^{-9} m[/tex]
[tex]n_{f}[/tex] in a hydrogen atom transition = final state = ?
[tex]n_{i}[/tex] in a hydrogen atom transition = initial state = 4
R = Rydberg constant = 1.097 ×[tex]10^{7} m^{-1}[/tex]
1/ 486 ×[tex]10^{-9} m[/tex] = 1.097 ×[tex]10^{7} m^{-1}[/tex] ( 1/[tex]n_{f} ^{2}[/tex] - 1/[tex]4^{2}[/tex] )
[tex]n_{f}[/tex] = 2
Missing parts :
Determine the end (final) value of n in a hydrogen atom transition, if the electron starts in n=4 and the atom emits a photon of light with a wavelength of 486 nm.
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What volume will 5.6 moles of sulfur hexafluoride
(SF6) gas occupy if the temperature and pressure of
the gas are 128°℃ and 9.4 atm?
Answer:
19.6 L SF₆
Explanation:
To find the volume, you need to use the Ideal Gas Law:
PV = nRT
In this equation,
-----> P = pressure (atm)
-----> V = volume (L)
-----> n = moles
-----> R = Ideal Gas constant (0.08206 atm*L/mol*K)
-----> T = temperature (K)
After converting the temperature from Celsius to Kelvin, you can plug the given values into the equation and simplify to find "V".
P = 9.4 atm R = 0.08206 atm*L/mol*K
V = ? L T = 128 °C + 273.15 = 401.15 K
n = 5.6 moles
PV = nRT
(9.4 atm)V = (5.6 moles)(0.08206 atm*L/mol*K)(401.15 K)
(9.4 atm)V = 184.3429
V = 19.6 L
The ________ of a liquid is the temperature at which its equilibrium vapor pressure is equal to the pressure exerted on the liquid by its gaseous surroundings.
The temperature at which a liquid's vapor pressure equals the pressure of the gas above it is known as the boiling point of the liquid. The temperature at which a liquid's vapor pressure equals one atmosphere is considered the liquid's typical boiling point (760).
When the vapor pressure of a liquid equals the pressure of the gas above it, the liquid boils. The temperature at which a liquid will boil decreases with decreasing gas pressure above the liquid.
The Macro Perspective.A liquid's vapor pressure rises as it warms until it reaches the same level as the gas above it. Within the bulk liquid, vaporize liquid (i.e., gas) bubbles form, rise to the surface, burst, and release the gas. (A bubble's internal vapor pressure is sufficient to prevent the bubble from collapsing at boiling temperature.)The liquid's molecules must overcome their forces of attraction in order to create vapor.
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The conversion of the fatty acid palmitate (c16) to carbon dioxide via β-oxidation, the citric acid cycle and oxidative phosphorylation yield approximately ____ atp equivalents
The conversion of the fatty acid palmitate (C-16) to carbon dioxide via β-oxidation, the citric acid cycle and oxidative phosphorylation yield approximately 106 atp equivalents.
The most prevalent kind of fatty acid with sixteen carbon atoms without carbon-carbon double bonds would be palmitic acid. There must be a maximum of seven cycles of beta-oxidation in order to totally degrade the fatty acid. 8 acetyl-CoA molecules, 7 NADH molecules, with 7 FADH2 molecules are produced as a result of this.
The primary enzyme, CAT-1, catalyzes the production of acylcarnitine carnitine, which provides the rate-limiting step in beta-oxidation.
Therefore, the conversion of the fatty acid palmitate (C-16) to carbon dioxide via β-oxidation, the citric acid cycle and oxidative phosphorylation yield approximately 106 atp equivalents.
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Draw the most stable form of the major product of each of the molecules with excess naoch2ch3 in ch3ch2oh , followed by aqueous acidic workup.
The stable form of the major product of naoch2ch3 in ch3ch2oh reaction is given below.
What is aqueous acidic?The pH of an aqueous solution is the measurement of how acidic or basic it is. The pH of an aqueous solution can be defined and calculated by using the attention of the hydronium ion attention in the solution.When disbanded in an aqueous resolution, certain ions were removed from the explanation. An Arrhenius acid is a combination that increases the attention of H+ ions that are present when counted to water. These H+ ions include the hydronium ion (H3O+) when they incorporate with water molecules.To learn more about aqueous acidic, refer to:
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The instructions for the experiment direct you to prepare 30 mL of 1.5 M HCl solution. In the chemical closet, you locate an 18M stock solution of HCl. What volume of the 18M HCl is needed to make the solution?
The volume of the 18M HCl needed to make the solution will be 2.5 mL.
DilutionAccording to the dilution principle, the number of moles of solutes in a solution before and after dilution must remain the same.
Since, mole = molarity x volume
Thus, molarity x volume before dilution = molarity x volume after dilution.
Mathematically, the equation is written as: m1v1 = m2v2
In this case, m1 = 18 M, m2 = 1.5 M, and v2 = 30 mL.
What we are looking for is v1, the amount of the stock HCl needed for dilution.
v1 = m2v2/m1 = 1.5 x 30/18 = 2.5 mL.
Thus, 2.5 mL of the stock HCl would be needed.
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three difference between radicle and plumule
Answer:
1)RADICLE ->It is the embryonic root of the plant.
PLUMULE ->It is the embryonic shoot of the plant.
2)RADICLE ->It grows downwards into the soil.
PLUMULE ->It grows upwards into the air.
3)RADICLE ->Radicle is the first part of the seedling.
PLUMULE -> Plumule grows after the radicle.
4)Radicles are negatively phototropic. Plumule is positively phototropic.
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A compound composed of 3. 3% h, 19. 3% c, and 77. 4% o has a molar mass of approximately 60 g/mol. What is the molecular formula of the compound?.
The molecular formula of the given compound is H₂CO₃ or Carbonic acid.
Given that,
H= 3.3%
C=19.3%
O= 77.4%
No.of moles of H= 3.3/1= 3.3
No. of moles of C= 19.3/12= 1.60
No.of moles of O= 77.4/16= 4.83
Therefore,the ratio of the atoms of C,H and O= 3.3 : 1.60 : 4.83
Divide by smallest value which you get= 3.3/1.60 : 1.60/1.60 : 4.83/1.60 =2 : 1 : 3
So,the empirical formula is H₂CO₃
Let the Molecular formula is (H₂CO₃)n
Then, molar mass = (2×1+1×12+3X16)n = 62n
As the question, 62n = 60
or, n= 0.96 (round figure is 1)
So, the molecular formula is (H₂CO₃)1= H₂CO₃ i.e., the compound is Carbonic acid.
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What is the name of the force that holds positively and negatively charged ions together in ionic compounds? nuclear forces van der waals forces electrostatic forces hydrogen bonding
Answer: electrostatic attraction
Explanation: ionic bond, also called electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound.
If you halve the volume of a constant amount of gas at a constant temperature, what happens to the pressure?
According to Boyle's law, If one halves the volume of a constant amount of gas at a constant temperature, the pressure will be doubled.
What is Boyle's law?Boyle's law is one of the gas laws that states that the pressure of an ideal gas is inversely proportional to its volume at constant temperature.
Boyle's law equation can be represented as follows:
P = KV
This law suggests that as the pressure of a gas increases, the volume decreases.
Therefore, in accordance with Boyle's law, If one halves the volume of a constant amount of gas at a constant temperature, the pressure will increase times 2 or double.
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A solution of 5. 00 g of lauryl alcohol in 0. 100 kg of benzene freezes at 4. 1°c. what is the approximate molar mass of lauryl alcohol?
The approximate molar mass of lauryl alcohol is 183 g/mol.
As per Raoult's law:
[tex]T_b - T_s =KC m[/tex]
Tb = the freezing point of benzene (5.5oC), Ts = the freezing point of the solution, K = the cryoscopic constant (5.12 K*kg/mol for benzene), and Cm = the molality of the solution.
[tex]m_{l}[/tex]/M[tex]m_{s}[/tex] = [tex]C_{m}[/tex] where ml is the mass of lauryl alcohol and ms is the mass of the solvent.
[tex]T_b - T_s =KC m[/tex]=K[tex]m_{l}[/tex]/M[tex]m_{s}[/tex]
Therefore, M=[tex]\frac{Km_{l} }{(T_b - T_s)m_{s} }[/tex]=[tex]5.12*5/0.1(5.5-4.1)[/tex]=183 g/mol.
Lauryl alcoholAn organic substance called lauryl alcohol is created industrially from coconut or palm kernel oil. It is an alcoholic fat. The use of sodium lauryl sulfate and other sulfate esters of lauryl alcohol as surfactants is extremely common. In shampoos, sodium laureth sulfate, ammonium laureth sulfate, and sodium lauryl sulfate are all utilized. Lauryl alcohol has a floral scent and is flavorless and colorless. In addition to being a flavor-enhancing food additive, lauryl alcohol is also used to create medicines, lubricating lubricants, surfactants, and monolithic polymers. Lauryl alcohol is a kind of emollient used in cosmetics. Lauryl alcohol, a significant scent, and 1-bromododecane, an alkylating agent used to increase the lipophilicity of organic molecules, are both precursors to Lauryl alcohol.
A solution of 5. 00 g of lauryl alcohol in 0. 100 kg of benzene freezes at 4. 1°c. what is the approximate molar mass of lauryl alcohol?
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LOTS OF POINTS!!!! Pls look at pic What is the energy (in J) of a photon of
light with a frequency of
5.0 * 10^15
Hz?
Answer:
A.) 3.3 x 10⁻¹⁸ J
Explanation:
You can calculate the energy using the following equation:
E = hf
In this equation,
-----> E = energy (J)
-----> h = Planck's Constant (6.626 x 10⁻³⁴ J*s)
-----> f = frequency (Hz)
Therefore, you can plug the given values into the equation and solve for "E".
E = hf <----- Equation
E = (6.626 x 10⁻³⁴ J*s)(5.0 x 10¹⁵ Hz) <----- Insert values
E = 3.3 x 10⁻¹⁸ J <----- Multiply
All simple metal with acid reactions are ____ displacement reactions.
Answer:
single displacement
Explanation:
the metal replaces the hydrogen of the acid to for a salt and hydrogen gas
An element with the general electron configuration for its outermost electrons of ns2np1 would be in which element group?
Electron configuration is the electron distribution in the molecular and atomic orbital. An element with configuration ns²np¹ will be in the 3A group. Thus, option B is correct.
What is electronic configuration?The electronic configuration has been the arrangement and distribution of the sub-atomic particle, an electron in the atomic shells.
The electronic configuration given is, ns²np¹. Here, there are three valence electrons in the outermost orbit. As it has been known that the number of the valence electron gives the number of the group.
Therefore, option B. 3A group or 13 group is the correct option.
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Your question is incomplete, but most probably your full question was, An element with the general electron configuration for its outermost electrons of ns2np1 would be in which group?
a. 2a
b. 3a
c. 4a
d. 5a
e. 8a
What type of microscope would you use to visualize a sample labeled with an antibody conjugated to a fluorescent tag? confocal, compound, dissection, electron?
The confocal microscope would you use to visualize a sample labeled with an antibody conjugated to a fluorescent tag.
Confocal microscopy, also known as laser light microscopy microscopy as well as confocal laser scanning microscopy, would be an optical imaging technique that employs a spatial aperture to block out-of-focus light during the image-formation process to increase the optical resolution as well as the contrast of a micrograph.
Confocal microscopy's fundamental tenet is that the lighting and detection lenses are concentrated at the same light scattering point, which would be traversed over the sample to create the entire image on the detector.
Therefore, The confocal microscope would you use to visualize a sample labeled with an antibody conjugated to a fluorescent tag.
Hence, option (a) will be correct answer.
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Atoms and molecules are way too small to be seen even with a microscope so how can we count how many there are?
Atoms and molecules are way too small to be seen even with a microscope so it can be counted by mass.
According to the context, the term actually may or may not encompass ions that meet this requirement. A molecule would be a collection of more than two atoms held together through attractive forces described as chemical bonds.
Atoms are incredibly tiny, with a diameter of around 1 x [tex]10^{-10}[/tex] meters. They can't be seen with a light microscope due to their small size. The composition of atoms can be observed and studied using a variety of ways, even if a light microscope might not be able to see one atom.
Therefore, atoms and molecules are way too small to be seen even with a microscope so it can be counted by mass.
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What does the duct calculator tell a technician about static pressure and airflow?
Answer:
It displays the static pressure loss over a length of 100 feet for a specific duct size and airflow.
What is a ductulator?People who work in the HVAC and construction industries use ductulators to size the ductwork in mechanical systems. It enables you to select the volumetric flow rate after selecting the static pressure you wish to keep in the duct. The ductulator offers you a wide range of rectangular duct diameters that will create this when you enter those criteria. It also displays the required diameter for a circular duct. The actual instrument is constructed of sturdy, thick paper, and it contains a rotating piece that lets you select the two settings I previously indicated.
find the relative molecular mass of MgCo3
The molecular mass of MgCO3 is 84.313 grams/mol.
How Does The molecular Mass Calculator Work?The standard atomic weights for that element are listed in a table, and each atom is compared to those values. The molar mass calculator displays the findings in a table at the bottom that includes the number of atoms, the atomic weights of the constituent elements, and the molecule's molecular weight. It provides a solution for a molecular formula's overall mass.From there, we dissect the components of the formula for magnesium carbonate: an atom of magnesium, an atom of carbon, an atom of oxygen, etc.You will need to unpack any bracketed expressions because (yet) we don't have brackets implemented. They have no impact on weight in any case. Multiply each element by how many times the structure in brackets appears. For instance: C6H5-3PCCO becomes C18H15-3PCCO.The relative molecular mass of MgCo3
Symbol Mg C O
Atoms 1 1 3
Name Magnesium Carbon Oxygen
Atomic 12 6 8
Molar Mass 24.305 12.011 15.999
Total 24.305 12.011 47.997=84.313
The molecular mass of MgCO3 is 84.313 grams/mol.
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Which of the first 20 elements in a Periodic table has atoms with the greatest mass?
Some of the most dangerous conditions occur when temperatures are hovering around _______ degrees fahrenheit, or freezing, when snow begins to turn to watery slush.
Answer:
32 ° F
Explanation:
Freezing temp for water is 32 degrees at 1 atm
Organic molecules (amino acids) needed to be concentrated to stimulate reactions to form proteinsconcentration mechanisms do not include?
Organic molecules (amino acids) needed to be concentrated to stimulate reactions to form proteins concentration mechanisms do not include Boiling Stones.
What is Amino Acids ?Amino acids organic compounds. Amino acids are building block of life these are the molecules which combine to form proteins. Amino acids contain the amino functional group that is -NH₂ and carboxyl functional group that is -COOH.
Example: Glycine, Alanine etc.
Thus from the above conclusion we can say that Organic molecules (amino acids) needed to be concentrated to stimulate reactions to form proteins concentration mechanisms do not include Boiling Stones.
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Why are thiols more nucleophilic than alcohols?
Answer:
Thiols contain stronger acids than alcohols
Explanation:
Answer:
Sulfur is a bigger atom than oxygen and has a lower electgronegativity value. Therefore, the lone pair availability in thiol is higher than alcohol
Explanation:
During the process of heat transfer, the heat transferred to or from a system's surroundings is always?
Answer:
During the process of heat transfer, the heat transferred to or from a system's surroundings is always equal in magnitude to the heat transferred to or from the system, but opposite in sign.
What is the 1st law of thermodynamics?
The total energy of an isolated system is said to stay constant according to the first rule of thermodynamics. Energy cannot be generated or destroyed, but it may be transformed from one form into another inside a closed system, which is known as the conservation of energy.
This rule states that when a system is exposed to a certain amount of heat, the amount of heat that the system absorbs is equal to the product of the increase in internal energy (change in internal energy) of the system and the external work that the system does. The relationship between a system's internal energy and work output and the heat given to it is demonstrated by the first law of thermodynamics. This equation provides the foundation for the majority of practical innovations like heat engines, freezers, and air conditioners.
The equation for the first law of thermodynamics is given as; ΔU = q + W
Where,
ΔU = change in internal energy of the system.q = algebraic sum of heat transfer between system and surroundings.W = work interaction of the system with its surroundings.The heat transported to or from a system's surroundings during the process of heat transfer is always opposite in sign, but equal in size, to the heat transferred to or from the system.
What is heat transfer?
The flow of thermal energy between physical systems is known as heat transfer. The temperatures of the systems and the characteristics of the medium used to transmit the heat affect how quickly it transfers. Conduction, convection, and radiation are the three basic ways that heat is transferred. It is crucial to employ heat transfer, or the movement of energy in the form of heat, in applications of the First Law of Thermodynamics since it is a mechanism through which a system changes its internal energy. Diffusion and conduction are two different concepts. Diffusion linked to fluid mixing is not the same as conduction.
The Second Law of Thermodynamics controls the direction of heat transmission, which is from one area of high temperature to another area of lower temperature. The internal energy of the systems from and to which the energy is transmitted is altered during heat transfer. Heat transfer will take place in a way that makes the group of systems' entropy higher.
In physics, heat is described as the flow of thermal energy over a boundary that is clearly defined surrounding a thermodynamic system. The amount of work that a thermodynamic system may accomplish is known as the thermodynamic free energy. Enthalpy is a thermodynamic potential with the letter "H" that is made up of the system's internal energy (U) plus the volumetric product of pressure (P) and temperature (T) (V). A joule is a unit used to measure energy, effort, or heat production.
The quantity of heat transmitted in a thermodynamic process that modifies a system's state relies on how that process happens, not just the net difference between the process' beginning and ending states, since heat transfer is a process function (or route function), as opposed to a function of state.
The heat transfer coefficient, which represents the relationship between the heat flux and the thermodynamic force that drives the flow of heat, is used to determine both thermodynamic and mechanical heat transfer. A quantitative, vectorial description of the movement of heat through a surface is called a heat flux.
The term "heat" is sometimes used interchangeably with "thermal energy" in technical applications. This usage derives from the historical understanding of heat as a fluid (caloric) that may be transported by a variety of reasons, which is also prevalent in laypeople's language and daily life.
Thank you,
Eddie
The activation of the serine/threonine protein kinase akt requires phosphoinositide 3-kinase (pi 3-kinase) to:______.
The activation of the serine/threonine protein kinase akt requires phosphoinositide 3-kinase (pi 3-kinase) to create phosphorylated lipids that serve as docking sites that localize Akt to the plasma membrane.
Ak strain changing is the meaning of the word Akt. The term "Akt" first appeared in 1928, when J. Furth conducted research on mice that spontaneously generated thymic lymphomas.
An essential enzyme in the signaling pathway that controls how cells react to insulin as well as other growth stimuli is called phosphoinositide 3-kinase (PI3K). To create phosphatidyl-inositol-3,4,5-trisphosphate (PIP3) at the plasma membrane, one such enzyme phosphorylates phosphatidylinositol-4,5-bisphosphate in the third carbon in the molecule.
Therefore, The activation of the serine/threonine protein kinase akt requires phosphoinositide 3-kinase (pi 3-kinase) to create phosphorylated lipids that serve as docking sites that localize Akt to the plasma membrane.
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