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

Ace/Undergragra

BIO 101

1 / 40

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

A. The solubility of the molecule

B. The kinetic energy of the molecule

C. The size of the molecule

D. The charges on the molecule

2 / 40

2. Carotenoids are divided into

A. Diatoms and carotenes

B. Chlorophyll and chromophyll

C. Xanthophyll and carotenes

D. Xanthophyll and fucoxanthin

3 / 40

3. One of the following is true about DNA

A. Eukaryotic organisms store their DNA inside the cell cytoplasm

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

C. Eukaryotic organisms store their DNA inside the ribosomes

D. Prokaryotic organisms store their DNA inside the cell nucleus

4 / 40

4. _______ is the physical differences observed between individuals

A. Continuous

B. Venation

C. Dissociation

D. Variation

5 / 40

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

A. Cytoplasmic cell division

B. Meiosis

C. Nuclear division

D. Mitosis

6 / 40

6. At metaphase, chromosomes are individually arranged on the

A. Metaphase plate

B. Middle of the cell

C. All of the above

D. Metaphase plane

7 / 40

7. Ribosomes are found in groups called

A. Monosomes

B. Polysomes

C. Lysosomes

D. Perioxosomes

8 / 40

8. The following are characteristics of prokaryotic cells except

A. No nucleus or any membrane bound organelle

B. They are small cells (<5mm)

C. ) Cells divide by binary fission

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

9 / 40

9. The following are characteristics of eukaryotic cells except

A. Ribosomes are large (80S)

B. Reproduction is only asexual

C. Cell division is by mitosis or meiosis

D. Motility is by flexible waving undulipodium made of tubulin

10 / 40

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

A. Platelets

B. Plasma

C. Polymorph

D. Cytoplasm

11 / 40

11. Blood is a

A. System

B. Tissue

C. Organ

D. Cell

12 / 40

12. The following are functions of leucoplasts except

A. Bulk storage of starch, lipid or proteins

B. Synthesis of tetrapyrolle compounds such as haem

C. Assists in energy production

D. Synthesis of fatty acids and amino acids

13 / 40

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

A. 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

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

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

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

14 / 40

14. The length of the mitochondrion is

A. 8nm

B. 8µm

C. 18nm

D. 18µm

15 / 40

15. Phosphorylation is the _______

A. Addition of ADP to an inorganic phosphate group

B. Beginning of ATP

C. None of the above

D. Removal of ADP from an inorganic hydrogen bond

16 / 40

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

A. Microvillus

B. Undulipodium

C. Cytoskeleton

D. Centriole

17 / 40

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

A. Transcription

B. Mutarotation

C. Mutation

D. Translocation

18 / 40

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

A. Mitochondrion and cell membrane

B. cell membrane and cytoplasm

C. cytoplasm and Mitochondrion

D. Nucleus and Mitochondrion

19 / 40

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

A. Transportation

B. Translocation

C. Transcription

D. Transduction

20 / 40

20. 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. I don't know

B. Monohybrid inheritance

C. Polyhybrid inheritance

D. Dihybrid inheritance

21 / 40

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

A. It consists of two arms with a centrosome

B. Sister chromatids are joined together by the centromere

C. It is darkly colored when stained

D. It contains DNA

22 / 40

22. Endocytosis is an example of

A. Movement if materials out of the cell

B. All of the above

C. Movement of toxic substances inside the cell

D. Movement of materials inside the cell

23 / 40

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

A. X region

B. Diakinesis

C. Chromomere

D. chiasmata

24 / 40

24. 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 permeability of the cell membrane is reduced in osmosis

C. The size of the molecule is reduced in osmosis

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

25 / 40

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

A. All of the above

B. It plays a major role in autophagy

C. It aids the digestion of invading bacteria

D. It can digest food

26 / 40

26. The term cell was coined by

A. Robert hooke

B. Purkinje

C. Nagelli

D. Schwann

27 / 40

27. One of the following is true about endocytosis

A. Pinocytosis refers to the process of engulfing large particles

B. Phagocytosis refers to the process of engulfing large particles

C. Cholesterol is carried by high density lipids

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

28 / 40

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

A. Kinetosome

B. Kinetomere

C. Kinetochore

D. Kinetochrome

29 / 40

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

A. Reabsorption

B. Absorption

C. Retention

D. Diffusion

30 / 40

30. Osmosis occurs through a semi-____________ membrane

A. parmeable

B. permeable

C. permeble

D. pemeable

31 / 40

31. Which of this is an organ

A. Guard cells

B. Xylem bundle

C. Liver

D. Blood

32 / 40

32. The features of discrete variations are clearly

A. Peripheral

B. Physical

C. Genetical

D. Phenotypic

33 / 40

33. The lysosome is formed from the

A. Mitochondrion

B. Smooth endoplasmic reticulum

C. Nucleus

D. Rough endoplasmic reticulum

34 / 40

34. Photosynthesis requires two stages namely

A. Dark and glucose

B. Light and dark

C. Light and photosystem

D. Phosphorylation and ligh

35 / 40

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

A. Smooth endoplasmic reticulum

B. Mitochondria

C. Golgi apparatus

D. Rough endoplasmic reticulum

36 / 40

36. Hereditary material are carried on

A. Mitochondrion

B. Nucleus

C. Cytoplasm

D. Chromosome

37 / 40

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

A. Companion Cells

B. Phloem

C. Xylem

D. Sclereids

38 / 40

38. White blood cells is mainly responsible for?

A. Formation of clot

B. All of the above

C. Combating infection and diseases

D. Production of hormones

39 / 40

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

A. Moist skin, lung body, mouth

B. Body surface, cell membrane, tracheal system

C. Gills, lungs, body surface

D. Lungs, lungs, gills

40 / 40

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

A. 6

B. 4

C. 5

D. 7

Your score is

The average score is 48%

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