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Chapter 7: Human Health and Diseases
- Online Test
Chapter 7: Human Health and Diseases
TEST : 3
# Chapter 7: Human Health and Diseases
# TN 12th Zoology
Prepare / Learn
Q1.
Which of the following endoparasites of humans does show vivipaity?
A.
Ancylostoma duodenale
B.
Enterobius vermicularis
C.
Trichimella spiralis
D.
Ascaris lumbricoides
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Answer :
Option C
Explaination / Solution:
No Explaination.
# Chapter 7: Human Health and Diseases
# TN 12th Zoology
Prepare / Learn
Q2.
The active form of Entamoeba histolytica feeds upon:
A.
Erythrocytes, mucosa and submucosa of colon
B.
Mucosa and submucosa colon only
C.
Food in intestine
D.
Blood only
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Answer :
Option A
Explaination / Solution:
No Explaination.
# Chapter 7: Human Health and Diseases
# TN 12th Zoology
Prepare / Learn
Q3.
Which one of the following statements is correct with respect to AIDS?
A.
The HIV can be transmitted through eating food together with an infected person.
B.
Drug addicts are least susceptible to HIV infection.
C.
AIDS patients are being fully cured 100 percent with proper care and nutrition.
D.
The causative HIV retrovirus enters helper T-lymphocytes thus reducing their numbers.
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Answer :
Option D
Explaination / Solution:
No Explaination.
# Chapter 7: Human Health and Diseases
# TN 12th Zoology
Prepare / Learn
Q4.
Select the correct statement with respect to diseases and immunization
A.
If due to some reason B and T lymphocytes are damaged, the body will not produce antibodies against a pathogen
B.
Injection of dead/inactivated pathogens caused passive immunity
C.
Certain protozoans have been used in mass production of hepatitis B vaccine.
D.
Injection of snake antivenom against snake bite is an example of active immunization.
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Answer :
Option A
Explaination / Solution:
No Explaination.
# Chapter 7: Human Health and Diseases
# TN 12th Zoology
Prepare / Learn
Q5.
Which one of the following statements is correct with respect to immunity?
A.
The antibodies against small pox pathogen are produced by T – lymphocytes
B.
Antibodies are protein molecules each of which has four light chains.
C.
Rejection of a kidney graft is the function of B – lymphocytes.
D.
Preformed antibodies need to be injected to treat the bite by a viper snake.
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Answer :
Option D
Explaination / Solution:
No Explaination.
# Chapter 7: Human Health and Diseases
# TN 12th Zoology
Prepare / Learn
Q6.
Which one of the following is not a property of cancerous cells whereas the remaining three are?
A.
They compete with normal cells for vital nutrients
B.
They do not remain confined in the area of formation
C.
They divide in an uncontrolled manner
D.
They show contact inhibition
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Answer :
Option D
Explaination / Solution:
No Explaination.
# Chapter 7: Human Health and Diseases
# TN 12th Zoology
Prepare / Learn
Q7.
At which stager HIV infection does one usually show symptoms of AIDS?
A.
Within 15 days of sexual contact with an infected person
B.
When the infected retro virus enters host cells
C.
When HIV damages large number of helper T-Lymphocytes
D.
When the viral DNA is produced by reverse transcriptase
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Answer :
Option C
Explaination / Solution:
No Explaination.
# Chapter 7: Human Health and Diseases
# TN 12th Zoology
Prepare / Learn
Q8.
Match each disease with its correct type of vaccine
A.
a-(ii) b-(i) c-(iii) d-(iv)
B.
a-(iii) b-(ii) c-(iv) d-(i)
C.
a-(iv) b-(iii) c-(ii) d-(i)
D.
a-(i) b-(ii) c-(iv) d-(iii)
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Answer :
Option C
Explaination / Solution:
No Explaination.
# Chapter 7: Human Health and Diseases
# TN 12th Zoology
Prepare / Learn
Q9.
Which of the following is correct regarding AIDS causative agent HIV?
A.
HIV is enveloped virus that contains two identical molecules of single-stranded RNA and two molecules of reverse transcriptase
B.
HIV is unenveloped retrovirus
C.
HIV does not escape but attacks the acquired immune response
D.
HIV is enveloped virus containing one molecule of single – stranded RNA and one molecule of reverse transcriptase
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Answer :
Option A
Explaination / Solution:
No Explaination.
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