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

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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Created on March 19, 2023 By

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BIO 101

1 / 40

1. _______ is the physical differences observed between individuals

A. Continuous

B. Variation

C. Dissociation

D. Venation

2 / 40

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

A. Rough endoplasmic reticulum

B. Mitochondria

C. Smooth endoplasmic reticulum

D. Golgi apparatus

3 / 40

3. 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. Monohybrid inheritance

B. Dihybrid inheritance

C. Polyhybrid inheritance

D. I don't know

4 / 40

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

A. Sclereids

B. Xylem

C. Companion Cells

D. Phloem

5 / 40

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

A. Cytoplasm

B. Polymorph

C. Platelets

D. Plasma

6 / 40

6. Blood is a

A. Cell

B. Organ

C. System

D. Tissue

7 / 40

7. The following are characteristics of eukaryotic cells except

A. Ribosomes are large (80S)

B. Cell division is by mitosis or meiosis

C. Reproduction is only asexual

D. Motility is by flexible waving undulipodium made of tubulin

8 / 40

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

A. Diffusion

B. Reabsorption

C. Absorption

D. Retention

9 / 40

9. Endocytosis is an example of

A. Movement if materials out of the cell

B. All of the above

C. Movement of materials inside the cell

D. Movement of toxic substances inside the cell

10 / 40

10. The difference between diffusion and osmosis is?

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

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

C. The size of the molecule is reduced in osmosis

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

11 / 40

11. The lysosome is formed from the

A. Mitochondrion

B. Nucleus

C. Smooth endoplasmic reticulum

D. Rough endoplasmic reticulum

12 / 40

12. The following are characteristics of prokaryotic cells except

A. ) Cells divide by binary fission

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

C. They are small cells (<5mm)

D. No nucleus or any membrane bound organelle

13 / 40

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

A. 7

B. 4

C. 5

D. 6

14 / 40

14. The length of the mitochondrion is

A. 18nm

B. 18µm

C. 8nm

D. 8µm

15 / 40

15. Hereditary material are carried on

A. Nucleus

B. Mitochondrion

C. Chromosome

D. Cytoplasm

16 / 40

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

A. Microvillus

B. Centriole

C. Undulipodium

D. Cytoskeleton

17 / 40

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

A. Translocation

B. Transportation

C. Transduction

D. Transcription

18 / 40

18. Phosphorylation is the _______

A. None of the above

B. Removal of ADP from an inorganic hydrogen bond

C. Addition of ADP to an inorganic phosphate group

D. Beginning of ATP

19 / 40

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

A. X region

B. Diakinesis

C. Chromomere

D. chiasmata

20 / 40

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

A. It aids the digestion of invading bacteria

B. It can digest food

C. All of the above

D. It plays a major role in autophagy

21 / 40

21. White blood cells is mainly responsible for?

A. Combating infection and diseases

B. Formation of clot

C. Production of hormones

D. All of the above

22 / 40

22. At metaphase, chromosomes are individually arranged on the

A. Metaphase plate

B. All of the above

C. Metaphase plane

D. Middle of the cell

23 / 40

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

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

B. 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

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

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

24 / 40

24. The features of discrete variations are clearly

A. Genetical

B. Phenotypic

C. Peripheral

D. Physical

25 / 40

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

A. Mutarotation

B. Mutation

C. Transcription

D. Translocation

26 / 40

26. Which of this is an organ

A. Blood

B. Xylem bundle

C. Guard cells

D. Liver

27 / 40

27. Photosynthesis requires two stages namely

A. Dark and glucose

B. Light and dark

C. Light and photosystem

D. Phosphorylation and ligh

28 / 40

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

A. Mitosis

B. Cytoplasmic cell division

C. Meiosis

D. Nuclear division

29 / 40

29. Ribosomes are found in groups called

A. Lysosomes

B. Polysomes

C. Perioxosomes

D. Monosomes

30 / 40

30. The following are functions of leucoplasts except

A. Bulk storage of starch, lipid or proteins

B. Assists in energy production

C. Synthesis of fatty acids and amino acids

D. Synthesis of tetrapyrolle compounds such as haem

31 / 40

31. One of the following is true about DNA

A. Eukaryotic organisms store their DNA inside the cell cytoplasm

B. Prokaryotic organisms store their DNA inside the cell nucleus

C. Eukaryotic organisms store their DNA inside the ribosomes

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

32 / 40

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

A. The kinetic energy of the molecule

B. The solubility of the molecule

C. The charges on the molecule

D. The size of the molecule

33 / 40

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

A. It contains DNA

B. Sister chromatids are joined together by the centromere

C. It consists of two arms with a centrosome

D. It is darkly colored when stained

34 / 40

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

A. Lungs, lungs, gills

B. Moist skin, lung body, mouth

C. Gills, lungs, body surface

D. Body surface, cell membrane, tracheal system

35 / 40

35. The term cell was coined by

A. Purkinje

B. Schwann

C. Robert hooke

D. Nagelli

36 / 40

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

A. Kinetochore

B. Kinetosome

C. Kinetochrome

D. Kinetomere

37 / 40

37. Carotenoids are divided into

A. Xanthophyll and carotenes

B. Diatoms and carotenes

C. Xanthophyll and fucoxanthin

D. Chlorophyll and chromophyll

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. One of the following is true about endocytosis

A. Phagocytosis refers to the process of engulfing large particles

B. Cholesterol is carried by high density lipids

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

D. Pinocytosis refers to the process of engulfing large particles

40 / 40

40. Osmosis occurs through a semi-____________ membrane

A. permeable

B. pemeable

C. parmeable

D. permeble

Your score is

The average score is 48%

BIO 101 CBT PRACTICE TEST

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