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EBSU BIO 101 CBT Practice

April 22, 2025

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Hey EBSUites!

Are you preparing for your upcoming CBT exams and want a solid way to test your knowledge and build confidence? We’ve got something exciting for you—CBT Practice Questions with a built-in timer to simulate real exam pressure and boost your speed.

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 BIO 101 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

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Created on April 22, 2025 By

Phil

EBSU BIO 101

1 / 40

1. The length of the mitochondrion is

A. 8nm

B. 8µm

C. 18µm

D. 18nm

2 / 40

2. The process by which nervous system converts stimuli into electrical impulses is

A. Transcription

B. Transportation

C. Translocation

D. Transduction

3 / 40

3. The following are characteristics of eukaryotic cells except

A. Cell division is by mitosis or meiosis

B. Motility is by flexible waving undulipodium made of tubulin

C. Reproduction is only asexual

D. Ribosomes are large (80S)

4 / 40

4. Series of membrane bound channels involved in the synthesis and transport of materials, mainly lipids are?

A. Rough endoplasmic reticulum

B. Smooth endoplasmic reticulum

C. Golgi apparatus

D. Mitochondria

5 / 40

5. The difference between diffusion and osmosis is?

A. The movement of the molecule from region of higher concentration to region of lower concentration in osmosis

B. The size of the molecule is reduced in osmosis

C. The permeability of the cell membrane is reduced in osmosis

D. Movement of water from region of higher concentration to region of lower concentration in osmosis

6 / 40

6. The type of cell division that enhances growth and development is

A. Meiosis

B. Nuclear division

C. Cytoplasmic cell division

D. Mitosis

7 / 40

7. The following are functions of leucoplasts except

A. Synthesis of fatty acids and amino acids

B. Bulk storage of starch, lipid or proteins

C. Assists in energy production

D. Synthesis of tetrapyrolle compounds such as haem

8 / 40

8. Osmosis occurs through a semi-____________ membrane

A. parmeable

B. pemeable

C. permeable

D. permeble

9 / 40

9. Enzymes of the lysosome work optimally at a ph of?

A. 4

B. 6

C. 5

D. 7

10 / 40

10. Hereditary material are carried on

A. Chromosome

B. Nucleus

C. Mitochondrion

D. Cytoplasm

11 / 40

11. The lysosome is formed from the

A. Nucleus

B. Mitochondrion

C. Smooth endoplasmic reticulum

D. Rough endoplasmic reticulum

12 / 40

12. One of the following is true about DNA

A. Eukaryotic organisms store their DNA inside the cell cytoplasm

B. Eukaryotic organisms store their DNA inside the ribosomes

C. Prokaryotic organisms store their DNA in the cell’s cytoplasm

D. Prokaryotic organisms store their DNA inside the cell nucleus

13 / 40

13. Photosynthesis requires two stages namely

A. Phosphorylation and ligh

B. Light and dark

C. Dark and glucose

D. Light and photosystem

14 / 40

14. The following are characteristics of prokaryotic cells except

A. ) Cells divide by binary fission

B. They are small cells (<5mm)

C. No nucleus or any membrane bound organelle

D. DNA is linear and associated with proteins to form chromatin

15 / 40

15. The principal means of passive transport in cell membrane is?

A. Retention

B. Absorption

C. Diffusion

D. Reabsorption

16 / 40

16. Which of this is an organ

A. Xylem bundle

B. Blood

C. Liver

D. Guard cells

17 / 40

17. The features of discrete variations are clearly

A. Peripheral

B. Physical

C. Genetical

D. Phenotypic

18 / 40

18. The respiratory system in Amoeba, tapeworm and arthropods are _______

A. Body surface, cell membrane, tracheal system

B. Lungs, lungs, gills

C. Gills, lungs, body surface

D. Moist skin, lung body, mouth

19 / 40

19. When a plant with white seed coats was crossed with gray seed coats; the resulting f1 plants yielded grey seed coats. This is an example of

A. Polyhybrid inheritance

B. Dihybrid inheritance

C. I don't know

D. Monohybrid inheritance

20 / 40

20. The region where exchange of genetic material occur in the chromosome is

A. chiasmata

B. Chromomere

C. Diakinesis

D. X region

21 / 40

21. White blood cells is mainly responsible for?

A. All of the above

B. Combating infection and diseases

C. Formation of clot

D. Production of hormones

22 / 40

22. At metaphase, chromosomes are individually arranged on the

A. Middle of the cell

B. Metaphase plate

C. Metaphase plane

D. All of the above

23 / 40

23. _______ is the physical differences observed between individuals

A. Variation

B. Continuous

C. Venation

D. Dissociation

24 / 40

24. The vascular tissue which function for the conduction of water and mineral salt upward from root to leaves of plant is?

A. Phloem

B. Xylem

C. Sclereids

D. Companion Cells

25 / 40

25. Which of the following statements is true about the vacuole

A. It plays a major role in autophagy

B. It aids the digestion of invading bacteria

C. It can digest food

D. All of the above

26 / 40

26. In the centromere, a distant point of attachment for fibers that make up the mitotic and meiotic spindle apparatus is called?

A. Kinetosome

B. Kinetochore

C. Kinetomere

D. Kinetochrome

27 / 40

27. Ribosomes are found in groups called

A. Perioxosomes

B. Lysosomes

C. Polysomes

D. Monosomes

28 / 40

28. Which of these is concerned with the clotting of blood?

A. Platelets

B. Plasma

C. Polymorph

D. Cytoplasm

29 / 40

29. One of the following is not true about a chromosome

A. Sister chromatids are joined together by the centromere

B. It contains DNA

C. It is darkly colored when stained

D. It consists of two arms with a centrosome

30 / 40

30. Phosphorylation is the _______

A. Addition of ADP to an inorganic phosphate group

B. Removal of ADP from an inorganic hydrogen bond

C. Beginning of ATP

D. None of the above

31 / 40

31. Blood is a

A. System

B. Organ

C. Cell

D. Tissue

32 / 40

32. The following will affect the rate of diffusion of a molecule except

A. The charges on the molecule

B. The kinetic energy of the molecule

C. The solubility of the molecule

D. The size of the molecule

33 / 40

33. One of the following is true about endocytosis

A. Phagocytosis refers to the process of engulfing large particles

B. Vacuoles are formed from the inner mitochondrial membrane of the cell

C. Cholesterol is carried by high density lipids

D. Pinocytosis refers to the process of engulfing large particles

34 / 40

34. Which of the following statements is true about the cell membrane.

A. The continuous spherical lipid layer of the cell membrane is about 7mm thick

B. Markers on a cell membrane serve to transmit signals into the cell membrane

C. The arrangement of the lipid bilayer prevents hydrophobic solutes from passively diffusing across the cell membrane

D. The cell membrane consists of a layer of amphiphatic lipids which arrange so that their hydrophilic tail regions are shielded from the extracellular faces of the membrane

35 / 40

35. The term cell was coined by

A. Robert hooke

B. Nagelli

C. Schwann

D. Purkinje

36 / 40

36. Endocytosis is an example of

A. All of the above

B. Movement if materials out of the cell

C. Movement of toxic substances inside the cell

D. Movement of materials inside the cell

37 / 40

37. The process whereby stretches of Dna are copied into the related nucleic acid RNA is called

A. Translocation

B. Mutation

C. Transcription

D. Mutarotation

38 / 40

38. Kreb’s cycle and glycolysis occur in the _______ and _______ respectively

A. Nucleus and Mitochondrion

B. Mitochondrion and cell membrane

C. cytoplasm and Mitochondrion

D. cell membrane and cytoplasm

39 / 40

39. Carotenoids are divided into

A. Chlorophyll and chromophyll

B. Xanthophyll and carotenes

C. Xanthophyll and fucoxanthin

D. Diatoms and carotenes

40 / 40

40. A pair of short microtubules involved in cell division is called

A. Undulipodium

B. Cytoskeleton

C. Microvillus

D. Centriole

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