BIO 101 CBT PRACTICE TEST

Ace/Undergragra March 23, 2023

0 4,405 1 minute read

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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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Undergragra

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Created on March 19, 2023 By

Ace/Undergragra

BIO 101

1 / 40

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

A. Xylem

B. Phloem

C. Sclereids

D. Companion Cells

2 / 40

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

A. Polymorph

B. Plasma

C. Platelets

D. Cytoplasm

3 / 40

3. The term cell was coined by

A. Robert hooke

B. Purkinje

C. Nagelli

D. Schwann

4 / 40

4. The following are characteristics of eukaryotic cells except

A. Ribosomes are large (80S)

B. Motility is by flexible waving undulipodium made of tubulin

C. Reproduction is only asexual

D. Cell division is by mitosis or meiosis

5 / 40

5. Photosynthesis requires two stages namely

A. Light and dark

B. Dark and glucose

C. Phosphorylation and ligh

D. Light and photosystem

6 / 40

6. Osmosis occurs through a semi-____________ membrane

A. permeable

B. pemeable

C. permeble

D. parmeable

7 / 40

7. The following are functions of leucoplasts except

A. Synthesis of fatty acids and amino acids

B. Assists in energy production

C. Bulk storage of starch, lipid or proteins

D. Synthesis of tetrapyrolle compounds such as haem

8 / 40

8. Which of this is an organ

A. Blood

B. Liver

C. Guard cells

D. Xylem bundle

9 / 40

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

A. Kinetomere

B. Kinetosome

C. Kinetochore

D. Kinetochrome

10 / 40

10. Ribosomes are found in groups called

A. Polysomes

B. Perioxosomes

C. Monosomes

D. Lysosomes

11 / 40

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

A. Golgi apparatus

B. Rough endoplasmic reticulum

C. Smooth endoplasmic reticulum

D. Mitochondria

12 / 40

12. The features of discrete variations are clearly

A. Physical

B. Genetical

C. Phenotypic

D. Peripheral

13 / 40

13. 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. I don't know

D. Polyhybrid inheritance

14 / 40

14. Hereditary material are carried on

A. Mitochondrion

B. Nucleus

C. Chromosome

D. Cytoplasm

15 / 40

15. Carotenoids are divided into

A. Chlorophyll and chromophyll

B. Diatoms and carotenes

C. Xanthophyll and carotenes

D. Xanthophyll and fucoxanthin

16 / 40

16. The length of the mitochondrion is

A. 8nm

B. 18nm

C. 18µm

D. 8µm

17 / 40

17. The lysosome is formed from the

A. Nucleus

B. Rough endoplasmic reticulum

C. Smooth endoplasmic reticulum

D. Mitochondrion

18 / 40

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

A. Reabsorption

B. Absorption

C. Retention

D. Diffusion

19 / 40

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

A. 4

B. 7

C. 5

D. 6

20 / 40

20. White blood cells is mainly responsible for?

A. Production of hormones

B. Combating infection and diseases

C. All of the above

D. Formation of clot

21 / 40

21. Blood is a

A. Organ

B. Cell

C. System

D. Tissue

22 / 40

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

A. Chromomere

B. Diakinesis

C. chiasmata

D. X region

23 / 40

23. Phosphorylation is the _______

A. Beginning of ATP

B. Removal of ADP from an inorganic hydrogen bond

C. None of the above

D. Addition of ADP to an inorganic phosphate group

24 / 40

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

A. cell membrane and cytoplasm

B. Nucleus and Mitochondrion

C. Mitochondrion and cell membrane

D. cytoplasm and Mitochondrion

25 / 40

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

A. Translocation

B. Transcription

C. Mutation

D. Mutarotation

26 / 40

26. 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

27 / 40

27. 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 inside the cell nucleus

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

28 / 40

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

A. It plays a major role in autophagy

B. All of the above

C. It can digest food

D. It aids the digestion of invading bacteria

29 / 40

29. At metaphase, chromosomes are individually arranged on the

A. Metaphase plate

B. Metaphase plane

C. Middle of the cell

D. All of the above

30 / 40

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

A. Microvillus

B. Cytoskeleton

C. Centriole

D. Undulipodium

31 / 40

31. _______ is the physical differences observed between individuals

A. Variation

B. Dissociation

C. Continuous

D. Venation

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

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

34 / 40

34. One of the following is true about endocytosis

A. Pinocytosis 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. Phagocytosis refers to the process of engulfing large particles

35 / 40

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

A. Nuclear division

B. Mitosis

C. Cytoplasmic cell division

D. Meiosis

36 / 40

36. Endocytosis is an example of

A. Movement of materials inside the cell

B. Movement of toxic substances inside the cell

C. All of the above

D. Movement if materials out of the cell

37 / 40

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

A. It contains DNA

B. It is darkly colored when stained

C. It consists of two arms with a centrosome

D. Sister chromatids are joined together by the centromere

38 / 40

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

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

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

C. 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

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

39 / 40

39. The following are characteristics of prokaryotic cells except

A. They are small cells (<5mm)

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

C. No nucleus or any membrane bound organelle

D. ) Cells divide by binary fission

40 / 40

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

A. Transcription

B. Translocation

C. Transportation

D. Transduction

Your score is

The average score is 47%

Please do well to drop a comment if this has really helped you. Thanks❤️

Ace/Undergragra March 23, 2023

0 4,405 1 minute read

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