Home/MDCAT/MDCAT Biology Acellular life Test Online

MDCAT Biology Acellular life Test Online

Mustansar KhanLast Updated: July 12, 2025

MDCAT Biology Acellular life Test

MDCAT Biology preparation with this online MCQ test on Acellular Life. This quiz covers key concepts related to viruses, viroids, prions, and viral diseases, including structure, replication, and classification—based on the MDCAT 2025 syllabus.

MDCAT 2025 Acellular life Online Test

Total Questions:	50
Time Allowed:	25 Minutes
Total Marks:	50
How to Attempt Test:	Please choose the right Option in MCQ-type question.
Test Helpful For:	MDCAT Entry Test Biology Online Test Interview Questions about Biology All Universities Entrance Test Recruitments Tests

Acellular life MCQS Online Question with Answer

Please wait...

Page 1 of 2

1. Why can’t viruses be classified in the five-kingdom system?

They are too small

They are not considered living organisms

They do not contain DNA

They are prokaryotes

2. How is HIV transmitted?

Casual contact

Mosquito bites

Coughing or sneezing

Unprotected sexual contact

3. Which of the following structures is found in enveloped viruses but not in non-enveloped viruses?

Capsid

DNA or RNA

Nucleic acid

Lipid envelope

4. Which of the following viruses is responsible for causing AIDS?

HPV

HSV

HIV

HCV

5. Which virus causes cancer-like conditions and is classified as an oncovirus?

HPV

Rabies virus

Dengue virus

Poliovirus

6. What is a provirus?

Viral DNA integrated into host DNA

A virus that infects only animals

A plant virus

A non-infectious form of virus

7. Which of the following is a DNA virus?

Poliovirus

Hepatitis B virus

Influenza virus

HIV

8. Which type of virus infects bacteria?

Retrovirus

Oncovirus

Adenovirus

Bacteriophage

9. Which of the following is not a host for viruses?

Plants

Fungi only

Bacteria

Humans

10. The term "acellular" refers to:

Viruses having many cells

Cells that divide quickly

Cells with large nuclei

Viruses lacking cellular structure

11. Viruses can be classified based on all of the following except:

Ribosome content

Shape and symmetry

Type of nucleic acid

Host organism

12. Which of the following statements is correct about AIDS?

It is caused by a bacterium

It is curable with antibiotics

It weakens the immune system

It only affects the liver

13. Why are antibiotics ineffective against viruses?

Viruses live only in water

Viruses are not living and lack targets like cell walls

Viruses are immune to drugs

Viruses grow too fast

14. Which of the following best describes viral replication?

Mitosis in host cell

Independent binary fission

Using host machinery to replicate

Reproduction in the nucleus

15. AIDS is characterized by:

Weak immune system and opportunistic infections

Excessive energy production

Enlarged red blood cells

High white blood cell count

16. Which of the following structures is absent in all viruses?

Nucleic acid

Protein coat

Capsid

Ribosomes

17. Which of the following viral diseases is sexually transmitted?

Measles

Influenza

Hepatitis A

HIV/AIDS

18. Which disease is caused by a virus with helical symmetry?

Polio

Hepatitis B

Mumps

Rabies

19. How do viruses reproduce?

By budding

By using the host cell machinery

By mitosis

By binary fission

20. Which of the following correctly describes the genetic material in HIV?

Double-stranded DNA

Single-stranded RNA

Double-stranded RNA

Single-stranded DNA

21. What is the shape of the influenza virus?

Icosahedral

Helical

Complex

Tadpole

22. What type of nucleic acid is found in the Influenza virus?

Single-stranded DNA

Double-stranded RNA

Single-stranded RNA

Double-stranded DNA

23. Which statement about viruses is true?

They require a host cell for replication

They reproduce on their own

They have both DNA and RNA

They are cellular organisms

24. Which of the following best describes the genome of a typical virus?

Can be DNA or RNA, single or double-stranded

Always double-stranded DNA

Always circular DNA

Only RNA in double-stranded form

25. Which of the following cells does HIV primarily destroy?

Red blood cells

Neutrophils

B-cells

T-helper cells (CD4+)

Page 2 of 2

26. What makes viruses different from bacteria?

They are prokaryotes

They require a host cell to reproduce

They have mitochondria

They reproduce independently

27. What is the first step in viral infection?

Translation

DNA replication

Release of virions

Attachment to host cell

28. Which of the following diseases is not caused by a virus?

Measles

Tuberculosis

Rabies

Influenza

29. What is the incubation period of HIV before AIDS symptoms appear?

Several months to years

1–2 weeks

Immediate onset

1–2 days

30. Which part of the HIV virus binds to CD4 receptors on host cells?

GP120

Reverse transcriptase

Capsid

Integrase

31. HIV primarily infects which cells of the human body?

Liver cells

Red blood cells

Neurons

T-helper cells

32. Which enzyme is unique to retroviruses like HIV?

Ligase

RNA polymerase

DNA polymerase

Reverse transcriptase

33. Viruses are considered non-living because:

They have RNA

They reproduce quickly

They do not grow or carry out metabolism

They cause diseases

34. Which of the following methods cannot destroy viruses?

Disinfectants

UV radiation

Antibiotics

High heat

35. Which component allows HIV to attach to host cells?

RNA polymerase

GP120 glycoprotein

DNA ligase

Reverse transcriptase

36. Which disease is caused by a retrovirus?

Influenza

Hepatitis A

AIDS

Dengue

37. What is the shape of the T4 bacteriophage?

Spherical

Tadpole-shaped

Helical

Icosahedral

38. Which of the following is NOT a symptom of AIDS?

Sudden weight loss

Frequent infections

Strong immune response

Persistent fever

39. Which virus has both DNA and an envelope?

Rabies virus

Hepatitis B virus

Poliovirus

Influenza virus

40. Why is HIV called a retrovirus?

It replicates backward from RNA to DNA

It has a double capsid

It uses a DNA genome

It uses host ribosomes

41. Which of the following body fluids does not transmit HIV?

Saliva

Blood

Semen

Vaginal fluid

42. What is the role of reverse transcriptase in HIV?

Converts viral RNA to DNA

Forms viral capsid

Synthesizes viral proteins

Breaks down host DNA

43. What is the outer protein coat of a virus called?

Membrane

Envelope

Cell wall

Capsid

44. Which feature is found only in viruses and not in bacteria?

Cell membrane

Ribosomes

Protein coat

Nucleic acid

45. Which of the following diseases is associated with a long latent period?

Dengue

AIDS

Mumps

Influenza

46. What is the main function of a viral envelope?

Store energy

Replicate the genome

Aid in host cell recognition and entry

Protect the capsid

47. How is the genetic material of a virus protected?

By mitochondria

By the cell wall

By the cytoplasm

By the capsid

48. What makes a virus host-specific?

Compatibility of surface receptors

Type of nucleic acid

Presence of ribosomes

Length of capsid

49. Which enzyme helps HIV integrate its DNA into the host genome?

Ligase

Integrase

RNA polymerase

Helicase

50. The protein shell that protects the viral genome is known as:

Capsule

Capsid

Nucleoid

Envelope

You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.

New MDCAT Syllabus 2025 Chapter Wise Download PDF online
NUMS MDCAT Entry Test 2025 Online Preparation…
Gomal Medical College GMC D.I Khan 2025 Entry Test…
KMU Peshawar Medical Entry Test Syllabus 2025 Sample…
All Pakistani Medical Colleges PMC MDCAT Test Result…
Shaikh Zayed Medical College SZMC 2025 Entry Test…
Rawalpindi Medical College RMC 2025 Entry Test…
King Edward Medical University KEMU 2025 Entry Test…

MDCAT Test Schedule 2025 Dates Announced
PMDC MDCAT Registration Online 2025 Last Date
MDCAT Physics Vactors And Equilibrium Online Test
MDCAT Fundamental Concepts of Chemistry Test Online MCQs
MDCAT Biology Inheritance Test Online MCQs
MDCAT Biology Variety of Life Test Online MCQs
MDCAT Biology Fields of Specialization Online Test MCQS
MDCAT Biology Kingdom of Protista Online Test MCQS
MDCAT Biology Fungi Online Test MCQS
MDCAT Biology Kingdom Plantae Test Online MCQS

Mustansar KhanLast Updated: July 12, 2025

Facebook Twitter Reddit WhatsApp Share via Email Print

MDCAT Biology Acellular life Test Online

MDCAT Biology Acellular life Test

MDCAT 2025 Acellular life Online Test

Acellular life MCQS Online Question with Answer

Related:

You Might Also Like

Mustansar Khan

One Comment

Leave a Reply Cancel reply