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Explain DNA structures 

Which statements are true concerning electron shieldingeffects?

1_valence electrons are efficient at shielding core electrons fromthe nuclear charge

2_core electrons are efficient at shielding valence electrons fromthe nuclear charge

3_outermost valence electrons are efficient at shielding each otherfrom the nuclear charge

4_as you move from left to right along a row of the periodic table,the effective nuclear charge felt by the outermost valenceelectrons increases

5_as you move down a column of the periodic table, the largernuclear charge causes the atomic radius to decrease

You choose the subject topic. It should to be one that aligns with your perspective.one you have strong feelings aboutYou choose the subject matter. It ought to be one that aligns with your perspective. one you have strong feelings about

You can answer this question in a variety of ways, so think carefully about how you want to approach the topic that you select. Here's how you can choose to complete the assignment:

a. Respond to all the questions one by one.

or 

b. Address each of the following questions in a minimum of 200 word paragraph.

now here are the questions that you need to respond base on your topic:

• What is your research topic (question)? 
• What is the approach you've selected?
• What do you already know about the topic?
• Why do you think the subject is worth your time?
• Why do you think this subject is worth the class's time?
• How do you think your subject will have a positive impact on the entire world?

which of the following statement about effective nuclear charge for the outermost electron of an electron is incorrect

a. the effective nuclear charge can be throught of as the true nuclear charge minus a screening constant due to theother electron in the atom.

b. effective nuclear charge increases going left to right across a row of the periodic table

c. valence electrons screen the nuclear charge more effetively than do core electrons

d. the effetive nuclear charge shows a sudden decrease when we go fom the end of one row to the beginning of the next row of the periodic table

e.the change in effective nuclear charge going down a column of th eperiodic table is generally less than that going across a row of the periodic table.

The effective nuclear charge for an atom is less than the actual nuclear charge due to _______________.Answer a.shielding b.paramagnetism c.electron-pair repulsion d.penetration e.relativity

Show all steps and explain please.

How is the effective nuclear charge of an atom lower than its actual nuclear charge? Explain in short

I have a mock trial in a couple days and I would like some help on creating some questions as the defence lawyer. The case is on Micheal Hudson, and my job is to question Shelagh Hudson, his wife. Could you please come up with enough questions to prove that Micheal Hudson is innocent.

How to become s software engineer?

What is the role of software engineering in life?

What is Value of female labor (single vs married, temporary vs long term, within minority groups, within classes)?

• inhabitant
• makeshift
• abundance

What is a Watershed?

What is a phyton?

Triple some in array

1. We will discuss the multiple approaches to solve this problem and finally we will write its Java code. The easiest approach is to use three loops to solve the problem. The expected time complexity is 1 square without using any extra space. The brute force approach is the simplest approach or you can say the brute force approach. The time complexity is bigger of and cube so basically we are using three four loops right and it 's a space complexity is big o of 1 as we are not using any extra space right. After that, basically we return the value true. If the array is sorted we do n't have to make all possible sets right, we can do the sum of the three numbers and accordingly move the pointers so let me explain this so we have given this array right. First, let's sort this array and then use two pointers to solve the problem.

What is spring boot and how its use ?

it is July 30,2017. The cheapest-to-deliver bond in a September 2017 Treasury bond futures contract is a 13% coupon bond, and deliveryis expected to be made on September 30,2017. Coupon payments on the bond are made on February 4 and August 4 each year. The term structure is flat, and the rate of interest with semiannual compounding is 12% per annum. The conversion factor for the bond is 1.5. The current quoted bond price is $110. Calculate the quoted futures price for the contract.

4.The following table provides the quoted price and terms for three separate treasury bonds

1 $152 Time-to-maturity = 20 years

Coupon = 14% per annum (payable semi-annually)

2 $140 Time-to-maturity = 25 years

Coupon = 12% per annum (payable semi-annually)

3 $124 Time-to-maturity = 30 years

The quoted futures price is $78.

(a) What are the conversion factors for the above three bonds?

(b) What is the cheapest-to-deliver bond?

5. The cheapest-to-deliver bond in a Treasury bond futures contract is a 13% coupon bond, and the delivery is expected to be made 62 days from today. Coupon payments on the bond are made every six months and the last coupon was made 177 days back. The next coupon is due 5 days from today and the coupon after that will be due 188 days from today. The annual risk-free rate is 11.65% per annum. The conversion factor for the bond is 1.5. The current quoted bond price is $110. Calculate the quoted futures price for the contract.

6.Company A, a British manufacturer, wishes to borrow U.S. dollars at a fixed rate of interest. Company B, a U.S. multinational, wishes to borrow sterling at a fixed rate of interest. They have been quoted the following rates per annum (adjusted for differential tax effects):

Company A 11.0% 7.0%

Design a swap that will net a bank, acting as intermediary, 10 basis points per annum and that will produce a gain of 15 basis points per annum for each of the two companies.

Company A,  wishes to borrow U.S dollars at a fixed rate of interest. Company B, wishes to borrow Japanese yen at a fixed rate of interest. The amounts required by the two companies are roughly the same at the current exchange rate. The companies have been quoted the following interest rates: 

Company X- Yen 4.8%
Company Y-Yen 6.2%

Company X-Dollars 9.5%

Company Y-Dollars 10.0%

Design  a swap that will net a bank, acting as intermediary, 20 basis points per annum. Make a swap appear equally attractive to the two companies and ensure that all foreign exchange risk is assumed by the company X and Company Y.  Also draw the cash flow chart. 

What is imperialism

What about indian history?

An intern gives you the following table for a normal adult (65kg) that just finished ingesting an unknown quantity of a sodium chloride solution (750mOsm/L). you notice a few missing entries.

Assuming that the “before” condition means before the NaCl drink; the “after” condition is when equilibrium has been achieved; no water is lost from the body; and that there is no movement of sodium chloride into or out of the cells, fill in the chart above. Fill in the missing information, including the amount of fluid the painting ingested, and all missing osmolarities and volumes.

Two (2) liters of a hypotonic 0.5% NaCl solution is infused intothe extracellular fluid compartment of a 40 Kg dog with initialplasma osmolarity = 300 milliosmoles/liter. After equilibration,what will the extracellular fluid volume, intracellular fluidvolume, and plasma osmolarity be? Molecular weight of NaCl =58.5

Ed Rivers, a 3rd year medical student, was alone in the hospitalER one night. It was unusually quiet that night, and the residentwas getting some much needed sleep. A patient, Mrs. X, was broughtin showing signs of serious dehydration. Ed tried to give herewater, but she vomited this back up. Feeling he must try something,and not wanting to wake the resident, Ed administered 1 liter ofsterile distilled water IV. Assume for simplicity that the redblood cells contain only solutes to which the rbc membrane isimpermeable, and that the rbcs and plasma are in osmoticequilibrium when the patient is brought in. The osmolarity of therbc is 300 mOsm/L.

What is Mrs. X red blood cell volume after the infusionequilibrates with the blood and why? Also what is the osmolarity ofthe red blood cells and plasma AFTER equilibration?

Ed Rivers, a 3rd year medical student, was alone in the hospital ER one night. It was unusually quiet that night, and the resident was getting some much needed sleep. A patient, Mrs. X, was brought in showing signs of serious dehydration. Ed tried to give here water, but she vomited this back up. Feeling he must try something, and not wanting to wake the resident, Ed administered 1 liter of sterile distilled water IV. Assume for simplicity that the red blood cells contain only solutes to which the rbc membrane is impermeable, and that the rbcs and plasma are in osmotic equilibrium when the patient is brought in. The osmolarity of the rbc is 300 mOsm/L.a. Mrs. X

Ed Rivers, a 3^rd year medical student, was alone in the hospital ER one night. It was unusually quiet that night, and the resident was getting some much needed sleep. A patient, Mrs. X, was brought in showing signs of serious dehydration. Ed tried to give her water, but she vomited this back up. Feeling he must try something, and not wanting to wake the resident, Ed administered 1 liter of sterile distilled water IV. Assume for simplicity that the red blood cells contain only solutes to which the rbc membrane is impermeable, and that the rbcs and plasma are in osmotic equilibrium when the patient is brought in. The osmolarity of the rbc is 300 mOsm/L.The volume of Mrs. X’s plasma was 3 liters before Ed administered the IV.

Had Ed given Mrs. X a sucrose solution instead of water, he might have helped her. What concentration of sucrose solution should he have administered to leave her rbc volume unaffected, and why?

Ed Rivers, a third-year medical student, was alone in the hospital emergency room one night. It was unusually quiet in the ER, so the residents were getting some much-needed sleep. A patient, Ms. B., was brought in showing signs of serious dehydration. Ed tried to give her water but she vomited. Feeling that he must try something else and not wanting to wake the residents, he administered 1 liter (L) of sterile distilled water intravenously (IV). The questions that follow are aimed at determining the consequences of Ed�s action. Assume for simplicity that red blood cells (RBC) contain only solutes to which the RBC membrane is impermeable. The osmolarity of the RBC, the concentration of solute particles, is 300 mOsm/L.

Ed Rivers, a third year medical student, was alone in the hospital emergency room (ER) one night. It was unusually quiet in the ER, so the residents were getting some much- needed sleep. A patient Ms. M.B. was brought in showing signs of serious dehydration. Ed tried to give her water, but she vomited. Feeling that he must do something else and not wanting to wake the residents, he administered 1 liter (L) of sterile distilled water intravenously (IV).

Work through each section one at a time. Once you feel you have mastered each section of the problem use your answers to help you summarize everything into a one to two page written report. Work on this as a group, but each person in the group needs to hand in their own typewritten report.

1. Predict the direction of change (increase, decrease, no change) you would expect Ed’s infusion to have produced in the listed parameters. Explain

2. The Volume of Ms. M.B., plasma was 3 L before Ed administered the IV. Assume that there was complete mixing of the administered water with her plasma, but no mixing with her interstitial fluid. Calculate Ms. M.B.’s plasma osmolarity after the infusion mixed with her plasma but before any water entered her RBC.

3. Assuming that Ms. M.B.’s RBC volume was 2 L before the IV was given. Calculate her plasma and RBC osmolarity after the infused water equilibrated between her plasma and her RBC. How much would her RBC volume change? (Again, assuming that there was no mixing with the interstitial fluid).

Ms. M.B. got worse after Ed’s treatment so the resident was called. She drew some blood from the patient and centrifuged it. The denser RBCs were forced to the bottom of the tube. The supernatant plasma was pink. The resident then decided to infuse a sucrose solution into the patient (The RBC membrane is impermeable to sucrose).

4. Why was the patient’ s plasma pink?

5. Had Ed given Ms. M.B. a sucrose solution instead of water, he might have helped her. What concentration sucrose solution should he have administered to leave the RBC volume unaffected?

The resident, knowing what Ed had done, infused the patient with 1 L of a 600 mM (i.e., 600 mOsm / L) sucrose solution. Recall that, after Ed’s treatment, the patient’s plasma was x (what you figured out above) L, her RBC volume was x (what you figured out above) L, and her osmolarity was x (what you figured out above) mOsm / L. Assume that this infusion equilibrated with Ms. M.B.’s plasma and RBCs.

6.Predict (increase, decrease, no change) the affect of the infusion given by the resident on the parameters listed. Explain.

7. Assuming that none of the administered fluid was excreted, calculate Ms. M.B.’s plasma osmolarity and RBC volume after the resident’s infusion had equilibrated with her plasma and RBC. (Again assume that no mixing takes place with interstitial fluid).

The resident, knowing what Ed had done, infused the patient with 1 L of a 600 mM (i.e., 600 mOsm / L) sucrose solution. Knowing that, after Ed’s treatment, the patient’s plasma volume was 3.6L, her RBC volume was 2.4L, and her osmolarity was 250 mOs/ L. Assume that this infusion equilibrated with Ms. M.B.’s plasma and RBCs.

6.Predict (increase, decrease, no change) the effect of the infusion given by the resident on the parameters listed. Explain your predictions.

Assume we have a cell which contains nonpermeating molecules (p; not ionized) at a concentration of 300 mM/l cell water. Assume the initial cell volume is 1.0nanoliter. What will be the final (i.e. equilibrium) volume when the cell is immersed in a large volume of the following solutions?

A) 300 mOsm sucrose (sucrose cannot penetrate the membrane)

B) 150 mOsm sucrose

C) 600 mOsm sucrose

D) 300 mOsm glycerol (glycerol can penetrate the membrane)

E) pure water

F) 600 mOsm glycerol

G) 300 mOsm sucrose & 300 mOsm glycerol

Please explain work. Label each test solution in terms of its osmolarity and tonicity.

What would the time course of volume change curve (graph Volume vs. time) for solution G look like?

Now assume that the normal Na+ and K+ concentrations of ICF and ECF are as given below, and that the man suffers a severe heart attack, which can cause his cells to lose a little K+ and gain a little Na+:

Na+ (mM/l)

ICF: 10 ECF: 140

K+ (mM/l)

ICF: 145 ECF: 5

After heart attack:

Na+ ICF: 14

K+ ICF: 141

Specifically, assume that the 4mM/l K+ los from the cells is exactly balanced by a gain of Na+. Thus, no other significant fluxes occur. What will be the ECF concentrations of Na+ and K+?

Can you cite this quote for me properly in APA?

“Two things fill the mind with ever new and increasing admiration and awe, the more often and steadily we reflect upon them: the starry heavens above me and the moral law within me."

1. Your goal is to make an isotonic intravenous solution for an emergency room patient who

has lost a lot of blood. The available solutes include glucose (300 mM), NaCl (150 mM), and
urea (300 mM). What solutes should she use to make up the IV solution with an osmolarity
of 300 mOsm (isosmotic), making sure that it will also be isotonic?

Explain your answer.
Assume that the cell is permeable to urea, glucose, but not to NaCl and that the osmolarity of
the cell is 300 mOsm.

2. If a 10% sucrose solution is separated from a 20% sucrose solution by a membrane
impermeable to sucrose, in which direction will net movement of water occur?
A) from the 10% sucrose solution to the 20% sucrose solution only
B) from the 20% sucrose solution to the 10% sucrose solution only
C) There will be no net movement of water in this case.
D) None of the answers are correct.

The value for Ψ in root tissue was found to be - 0.15MPa. If you take the root tissue and place it in a 0.1M sucrose solution (Ψ = -0.23). Which on the following should occur?

Select one:

a. Sucrose will be taken up by the root.

b. The root will synthesize sucrose to match the outside solution.

. The root will lose water to the outside solution.

d. The root will take up both water and sucrose

The value for Ψ in root tissue was found to be -0.15 MPa. If you take the root tissue and place it in a 0.1 M solution of sucrose (Ψ = -0.23 MPa), the net water flow would _____

An open beaker solution of 0.1 M sucrose has a ΨS = -0.244 MPa and contains a plant cell at equilibrium with a ΨP = 0.1 MPa. When we double the concentration of sucrose in the beaker solution, what is the new ΨS of the cell when the cell becomes flaccid?

1. You measure xylem pressure in two plants using the pressurechamber. In one, you apply 10 bars of pressure before you noticewater coming from the xylem of your sample. In the other you apply15 bars of pressure. Which plant is more water stressed? What isthe pressure potential of the water stressed plant in MPa?
   
   
   

2. If (water potentional)_P = 0.3 MPa and (waterpotentional)_S = -0.45 MPa, the resulting (waterpotentional)_W is ...

3. Briefly describe what happens in the xylem when cavitationdue to water stress occurs. Mention one structural feature of xylemin conifers that protects against cavitation. (3 - 5 sentences).

4.Solute and pressure potential is measured in two differentplaces in the same plant. Fill in the table below with plausiblenumbers (based on physiological principles). (Note: the plant ishealthy and well-watered).

If a plant cell has a pressure potential (ΨP) of 2 MPa and its ΨS = -3.5 bars, what is its water potential (Ѱ)? The plant cell from question above is placed in a beaker of sugar water with ΨS = -4.0 MPa. Will the water flow into or out of the cell?

If a plant cell with a solute potential of -0.2 MPa is placed in a beaker of pure water, at equilibrium it will have a pressure potential of +0.2 MPa because the cell wall prevents cell expansion. If that cell is then placed in a solution with a solute potential of -0.3 MPa that is open to the atmosphere (draw a picture if it helps you),

1.
What are the three most abundant macronutrients in plant tissues, and where are they obtained from?

A.)
N, P, K; obtained from the soil
B.)
C, H, O, obtained from water and air
C.)
N, P, K; obtained from the air
D.)
C, H, O; obtained from mycorrhizae

2. What is the function of the pericycle?

A.
It is the meristem layer in the root that forms new roots.
B.
It is the meristem layer that undergoes secondary growth in stems.
C.
It is the layer of cells in the roots that has a Casparian strip.
D.
It forms from axillary buds after apical dominance is removed.

3.The endodermal layer forces water and minerals to take the __________ route from cell to cell because of a suberin layer called the ____________.

A.
apoplastic; cuticle
B.
transmembrane; cuticle
C.
apoplastic; Casparian strip
D.
transmembrane; Casparian strip
E.
symplastic; cuticle

4. A plant cell has a water potential (Ψw) of -1 MPa, and is flaccid, having a turgor potential (Ψp) of 0 MPa. What is the solute potential (Ψs) of this cell?

A.
-2 MPa
B.
-1 MPa
C.
+2 MPa
D.
+1 MPa
E.
0 MPa

consider a root epidermal cell that is in contact with soil. if the pressure potential of the soil is 0 MPa, the solute potential of the soil is -0.3 Mpa, and the matric potential of the soil is -2.5 Mpa, and if the pressure potential in the root epidermal cells is +0.1 MPa, the solute potential is -2.9 MPa and the matric potential is 0 Mpa, which of the following is true:
a) water will move out of the root epidermal cell into the soil, B) water will move out the soil into the root epidermal cell C) the root is in equillibrium with the soil and there will be no net flow in either direction