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CBT TEST

AGR 201 CBT PRACTICE

Phil

January 11, 2025

Take your time to read instructions before taking this test.

There are 40 questions which you are to answer in 15 minutes that gives you roughly 30 seconds per question.

If you can get at least 60%, you can be rest assured that you’ll ace AGR 201 exam

In a normal exam you will be asked between 40 – 60 questions but I only arranged 40 questions

Note

Do not be in a hurry to answer the questions
Do not waste time on a question you don’t know
Move as fast as possible and starting with questions that don’t have calculation first to save time
Always crosscheck
Don’t be in a hurry to submit, you are not in a competition
Don’t be scared. Getting an A is easy
Don’t be over confident, you can end up a D, E or F. Calm your blood, no be only you sabi book

Please do well to use our comment box incase there’s a message you want to pass to us

70 – 100 A

60 – 69 B

50 – 59 C

45 – 49 D

40 – 44 E

0 – 39 F

I wish you success

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AGR 201

1 / 40

1. Which agricultural activity causes soil salinization?

A. Crop rotation

B. Excessive irrigation

C. Pesticide application

D. Fertilizer application

2 / 40

2. What is a virion?

A. A protein complex in the nucleus

B. An extracellular form of a virus

C. A type of immune cell

D. A type of bacterial cell

3 / 40

3. What kind of reproduction is most common in protozoa?

A. Budding

B. Sexual reproduction

C. Binary fission

D. Spore formation

4 / 40

4. What is the genetic material of a virus enclosed in?

A. Envelope

B. Mitochondria

C. Capsid

D. Ribosome

5 / 40

5. What is the primary characteristic of Archaebacteria?

A. Presence of a cellulose cell wall

B. Survival in extreme conditions

C. Ability to perform photosynthesis

D. Possession of membrane-bound organelles

6 / 40

6. Which type of Archaebacteria produces methane?

A. Crenarchaeota

B. Thaumarchaeota

C. Euryarchaeota

D. Nanoarchaeota

7 / 40

7. What makes Archaebacteria indifferent to major antibiotics?

A. Unique lipids in their membranes

B. Absence of cell walls

C. Presence of chloroplasts

D. Possession of plasmids with resistance enzymes

8 / 40

8. What triggers the activation of cytotoxic T-cells in a virally infected cell?

A. Expression of viral protein on the surface of the plasma membrane

B. Production of double-stranded RNA

C. Release of mature virions

D. Formation of inclusion bodies

9 / 40

9. What is a naked virus?

A. A virus without genetic material

B. A virus without a capsid

C. A virus without a host

D. A virus without an envelope

10 / 40

10. What is the mode of nutrition in protozoa that use pseudopodia to engulf their prey?

A. Phagocytosis

B. Autotrophy

C. Diffusion

D. Pinocytosis

11 / 40

11. Which type of nucleic acid is found in a virus?

A. Both DNA and RNA simultaneously

B. Only DNA

C. Either DNA or RNA, but not both

D. Only RNA

12 / 40

12. What is the primary function of a contractile vacuole in protozoa?

A. Osmoregulation

B. Movement

C. Nutrient absorption

D. Reproduction

13 / 40

13. Which protozoan group includes Plasmodium, the causative agent of malaria?

A. Apicomplexa

B. Microspora

C. Ciliophora

D. Sarcomastigophora

14 / 40

14. The word "science" is derived from which Latin word?

A. Scientium

B. Sciento

C. Scientia

D. Scineto

15 / 40

15. What is the main structural difference between normal cell proteins and prion proteins?

A. Unique three-dimensional configurations

B. Difference in protein molecular weight

C. Presence of additional RNA

D. Different amino acid sequences

16 / 40

16. What is the main advantage of intercropping?

A. Easy mechanization of farming

B. Increased resource utilization efficiency

C. Tailored production practices for one crop

D. Rapid spread of diseases

17 / 40

17. What type of nutrition do protozoa exhibit?

A. Autotrophic

B. Saprophytic

C. Photosynthetic

D. Holozoic

18 / 40

18. Which of the following Archaebacteria is found in human guts?

A. Lokiarcheota

B. Ignicoccus

C. Thermoplasma

D. Methanobrevibacter smithii

19 / 40

19. Which type of Archaebacteria oxidizes ammonia?

A. Thaumarchaeota

B. Korarchaeota

C. Euryarchaeota

D. Nanoarchaeota

20 / 40

20. Which climatic factor is most important for Nigerian agriculture?

A. Rainfall

B. Daylength

C. Humidity

D. Temperature

21 / 40

21. What is the role of stromatolites in studying early life?

A. Indicate volcanic activity

B. Serve as fossilized microbial mats

C. Demonstrate ancient photosynthetic pathways

D. Provide evidence of early atmospheric composition

22 / 40

22. What is the mode of reproduction in Archaebacteria?

A. Sexual reproduction

B. Binary fission

C. Budding

D. Spore formation

23 / 40

23. What are viroids primarily composed of?

A. Single-stranded DNA

B. Single-stranded RNA

C. Protein coat and DNA

D. Double-stranded RNA

24 / 40

24. Which cycle describes a virus integrating its genetic material into the host genome and remaining latent?

A. Replication cycle

B. Lysogenic cycle

C. Budding cycle

D. Lytic cycle

25 / 40

25. What is a major environmental problem caused by intensive agriculture?

A. Depletion of soil fertility

B. Reduction in water evaporation

C. Increased biodiversity

D. Reduction of pest resistance

26 / 40

26. What determines the helical capsid's diameter in helical viruses?

A. The type of envelope

B. The characteristics of its protomeres

C. The size of the host cell

D. The number of nucleic acid strands

27 / 40

27. What is the main habitat of Crenarchaeota?

A. High-pressure areas

B. Cold oceanic regions

C. Hot springs and deep-sea vents

D. Human intestines

28 / 40

28. Which of the following is NOT a type of land tenure system?

A. Inheritance

B. Photosynthetic

C. Leasehold

D. Communal

29 / 40

29. What is the primary composition of a viral capsid?

A. Nucleic acids

B. Lipids

C. Carbohydrates

D. Proteins

30 / 40

30. What is the main source of greenhouse gas emissions in agriculture according to the United Nations?

A. Crop rotation techniques

B. Livestock sector

C. Forestry practices

D. Use of organic fertilizers

31 / 40

31. What does the Hierarchical virus classification system use as one of its main criteria?

A. Presence or absence of an envelope

B. Symptoms caused by the virus

C. Mode of transmission

D. Host organism specificity

32 / 40

32. Which phylum consists of protozoa with cilia used for movement and food ingestion?

A. Ciliophora

B. Labyrinthomorpha

C. Apicomplexa

D. Sarcodina

33 / 40

33. Which of the following is the reproductive stage of protozoa?

A. Cyst stage

B. Trophozoite stage

C. Pellicle stage

D. Sporozoite stage

34 / 40

34. What is a key characteristic of prion diseases?

A. Rapid replication in host cells

B. Stability in the environment

C. Dual RNA and DNA genomes

D. Dependence on host enzymes for replication

35 / 40

35. How do amoeboids move and capture their prey?

A. Through subpellicular microtubules

B. Using flagella

C. Using cilia

D. Using pseudopodia

36 / 40

36. What is a defining characteristic of protozoa?

A. Presence of a cell wall

B. Ability to photosynthesize

C. Multicellular structure

D. Eukaryotic and unicellular

37 / 40

37. Which disease is associated with prions in cattle?

A. Chronic Wasting Disease

B. Fatal Familial Insomnia

C. Creutzfeldt-Jakob Disease (CJD)

D. Bovine Spongiform Encephalopathy (BSE)

38 / 40

38. What does primary agriculture primarily involve?

A. Building residential complexes

B. Processing of milk into butter and cheese

C. Farming operations like cultivation and livestock rearing

D. Road and railway construction

39 / 40

39. What does the term "cytolytic bacteriophage" refer to?

A. A virus that remains dormant in the host cell

B. A virus that integrates into the host DNA

C. A virus that only infects animal cells

D. A virus that causes lysis of the host cell

40 / 40

40. What is the process of a virus acquiring an envelope during replication called?

A. Budding

B. Splicing

C. Transduction

D. Fusion

Your score is

The average score is 38%

AGR 201 CBT PRACTICE

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