Question 1 of 15
Typhoid is caused by:
A
a virus
B
Salmonella typhi
C
Plasmodium
D
a fungus
View Correct Answer & Step-by-Step Solution
Correct Option:(B)Salmonella typhi
Detailed explanation is available inside the official test attempt review.
Class 12 Biology: Human Health and Disease — Chapter Test 1
Class 12 • Biology • Human Health and Disease • Chapter Test
MediumFREE
15
Questions
20 min
Duration
15
Marks (1 each)
No
Negative marking
Original practice questions with full solutions by ExamPortal.
Instructions
- • Read each question carefully and pick the correct answer.
- • You can mark questions for review and come back to them.
- • Answers are saved automatically.
- • The test is submitted automatically when time runs out.
Access
This test is completely free.
Finish it to earn +5 points.
SYLLABUS & QUESTION BLUEPRINT
Sample Practice Questions
Preview 5 sample questions from this 15-question test. Test your knowledge below or take the full exam in timed CBT mode.
Question 2 of 15
Malaria is caused by:
A
bacteria
B
Plasmodium (a protozoan)
C
a virus
D
a worm
View Correct Answer & Step-by-Step Solution
Correct Option:(B)Plasmodium (a protozoan)
Detailed explanation is available inside the official test attempt review.
Question 3 of 15
The infective stage of Plasmodium injected by a mosquito is the:
A
merozoite
B
sporozoite
C
gametocyte
D
trophozoite
View Correct Answer & Step-by-Step Solution
Correct Option:(B)sporozoite
Detailed explanation is available inside the official test attempt review.
Question 4 of 15
AIDS is caused by:
A
a bacterium
B
HIV, a retrovirus
C
a protozoan
D
a fungus
View Correct Answer & Step-by-Step Solution
Correct Option:(B)HIV, a retrovirus
Detailed explanation is available inside the official test attempt review.
Question 5 of 15
A widely used diagnostic test for HIV infection (AIDS) is:
A
Widal
B
ELISA
C
Mantoux
D
Schick
View Correct Answer & Step-by-Step Solution
Correct Option:(B)ELISA
Detailed explanation is available inside the official test attempt review.
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Frequently asked questions
How many questions are there in Class 12 Biology: Human Health and Disease — Chapter Test 1?
There are 15 questions to answer in 20 min. Each correct answer gives 1 mark, for a total of 15 marks.
Is there negative marking?
No. Wrong answers do not lose marks, so attempt every question.
Is this mock test free?
Yes, it is completely free. Just log in with your email to start.
What does this test cover?
It covers the chapter "Human Health and Disease" of Class 12 Biology. All questions are original, with a full solution for each.
Will I see my result and the solutions?
Yes. Right after you submit you get your score, accuracy, rank and percentile, and you can review every question with the correct answer and a step-by-step explanation.
Can I take this test again?
Yes, you can retake it as many times as you like and compare your scores.