Answers
1.Answer- perforin forms pores on the surface of the cell.
Infected cells produce the interferon in response to the viruses.The infected cells release the protein kinase R enzyme induced by interferon which acts upon eIF-2 and phosphorylates ,further it binds to the eIF2B and reduces the protein synthesis.The RNAL is the cellular enzyme released in response to the interferon and degrades the poly A mRNA within the cell which causes the reduction in protein synthesis of host and viral gene.The interferon also increases the host cell MHCI and II expression and enhances the immunoproteosome expression.The perforin is located at the natural killer cells and cytotoxic T lymphocytes .It is involved in the pore formation at the target cell membrane and releases the cytolytic material for their destruction.
2. B and D
The calcitonin is produced by the parafollicular cells of the thyroid gland and helps in the maintenance of the calcium and phosphate level in blood.When calcium level becomes high in blood, the calcitonin starts secreting and inhibits the osteoclasts activity and enhances the osteoblast activity. The inhibition of the osteoblast activity, inhibits the calcium release from bone to blood due to reduced resorption of bone,thus decreases the calcium level in blood. The stimulation of osteoblast causes the calcium transfer from blood to bone.calcitonin stimulates the synthesis of vitamin D in kidney.
3.
a-Responds to FSH Sertoli cells b- Responds to LH Leydig cells C- Produces testosterone Leydig cells d- Produces ABP Sertoli cells e-Forms the blood-testis barrier Sertoli cells
.
Similar Solved Questions
2 answers
What does is mean that "emissions trading has propertitized pollution"
What does is mean that "emissions trading has propertitized pollution"?...
1 answer
T the beginning of Year 2, Better Corp's accounting records had the following general ledger accounts...
t the beginning of Year 2, Better Corp's accounting records had the following general ledger accounts and balances. BETTER CORP. Accounting Equation . Liabilities+ Stockholders Equity stockR Event Assets Cash 24,000 Retained Earnings Land 34,000 Balance 01/01/Year 2 13,400 8,400 36,200 Better Co...
1 answer
Other income is reported on ___________ Schedule 1, line 8. Schedule 1, line 21. Form 1040,...
Other income is reported on ___________ Schedule 1, line 8. Schedule 1, line 21. Form 1040, page 1, line 6. Form 1040, page 1, line 9....
1 answer
Thank you i reslly apperciate it!! Page 2 of s Graded problem Chapter 14- Financial Accounting...
thank you i reslly apperciate it!! Page 2 of s Graded problem Chapter 14- Financial Accounting Comparative financial statements for ABC, a merchandising company for the calendar year ended 12/31/18 are below. The Company did not issue any new common stock during the year. A total of 800,000 sh...
1 answer
Treating Malnutrition - Costs and Benefits Malnutrition is a world-wide problem and a direct contributor to...
Treating Malnutrition - Costs and Benefits Malnutrition is a world-wide problem and a direct contributor to many diseases. For this discussion, choose a country and discuss the following: The major benefits of providing adequate nutrition to its citizens. The most important costs associated with ad...
1 answer
The weightless strut in the figure below is not attached to the wall; it is prevented...
The weightless strut in the figure below is not attached to the wall; it is prevented from falling only by friction. (Let w-395 N, L-4.85 m and h 3,05 m.) (a) Find the magnitude of the force of friction between the wall and the strut. (b) Find the normal force exerted by the wall on the strut. (c) F...
1 answer
A spacecraft is traveling at a speed of 2.3 km/sec. It takes 2.5 minutes to pass...
A spacecraft is traveling at a speed of 2.3 km/sec. It takes 2.5 minutes to pass a small asteroid. how wide is the asteroid (i.e., how far did the spacecraft travel during this time)? Use (distance) = (velocity) x (time)...
1 answer
Solubilization of dietary lipids, achieved by mixing bile salts and degrading them with pancreatic lipases, is...
Solubilization of dietary lipids, achieved by mixing bile salts and degrading them with pancreatic lipases, is required for transport across the intestine where the free fatty acid and the lysophospholipid can then be resynthesized into triacylglycerols in the intestinal mucosal cells. Why is this n...
1 answer
13) Give the characteristic of a second order reaction having only one reactant A) The rate...
13) Give the characteristic of a second order reaction having only one reactant A) The rate of the reaction is not proportional to the concentration of the reactant. B) The rate of the reaction is proportional to the natural logarithm of the concentration of the reactant C) The rate of the reaction ...
1 answer
When benzene vaporizes into a vacuum at #60^@ "C"# and #"1 atm"#, is it reversible or irreversible?
When benzene vaporizes into a vacuum at #60^@ "C"# and #"1 atm"#, is it reversible or irreversible?...
1 answer
Saved f the concentration of solutes outsi If the concentration of solutes outside the plant cell...
Saved f the concentration of solutes outsi If the concentration of solutes outside the plant cell is greater than the concentration on the inside, water will Help Sav Multiple Choice move into the cell. move in both directions equally. move against a concentration gradient. move out of the cell. Non...
1 answer
SUMMARY OUTPUT Confidence Interval Estimate and Prediction Interval Data ression Statistics Confi...
SUMMARY OUTPUT Confidence Interval Estimate and Prediction Interval Data ression Statistics Confidence Level 95% Multiple R R Square Adjusted R Square Standard Error Observations 0.9035 iven vaue iven value Sa ED1 given value ED2 given value 400 1.7353 ANOVA Predicted Y (YHat) 11.37451 sS Significan...
1 answer
If 5 fair coins flipped what is the probability of getting at least 2 heads and...
if 5 fair coins flipped what is the probability of getting at least 2 heads and 2 tails given that there is at least 1 head and 1 tail？...
1 answer
(Round to four decimal places as needed) The lengths of a particular animal's pregnancies are approximately...
(Round to four decimal places as needed) The lengths of a particular animal's pregnancies are approximately normally distributed, with mean u = 265 days and standard deviation o = 12 days. (a) What proportion of pregnancies lasts more than 280 days? (b) What proportion of pregnancies lasts betw...
1 answer
Write neat please. Show step by step please. Read instructions carefully. do all problems please. double...
Write neat please. Show step by step please. Read instructions carefully. do all problems please. double check your work. Box in answer please. Thank you Question 39 1 pts A positively charged particle is moving to the right in the plane of this paper. A magnetic field points upward toward t...
1 answer
Please write the procedure how you got the answer 30 and 31 Use the program below...
please write the procedure how you got the answer 30 and 31 Use the program below for problems 30 - 31 #include<stdio.h> int calcfactorial (int, int, int); int main() printf("result: %d\n", calcfactorial (7, 2, 5)); return(0); int calcfactorial(int n, int a, int b) int fact = 1; if(n &...
1 answer
Problem 5: (a) Draw the Mohr's circle for a state of plane stress shown. (b) What...
Problem 5: (a) Draw the Mohr's circle for a state of plane stress shown. (b) What are the principal stresses at point A? (c) What is the maximal shear stress? (d) What is the principal angle? 9 ksi 24 ksi 16 ksi...