BIO 203 CBT PRACTICE TEST

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 203 exam

PS

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

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40 – 44 E

0 – 39 F

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BIO 203

1 / 40

1.

What staining is best for lipid detection ?

A. Feulgens nuclear reaction

B. Berlin blue

C. Colloid gold

D. Sudan III IV

2 / 40

2.

Food is converted to energy in

A. Chloroplast

B. Nucleus

C. Nucleolus

D. Mitochondria

3 / 40

3.

Nitrogen, phosphorus and sulphur are examples of

A. Non-essential non-metallic elements

B. Essential metallic elements

C. Non-essential metallic elements

D. Essential non-metallic elements

4 / 40

4.

The tiny indivisible units that contain light energy are

 

A. photons

B. electrons

C. protons

D. neutrons

5 / 40

5.

The raw materials for needed for photosynthesis include

A. All the options

B. Nutrients

C. Organic Substance

D. Light

6 / 40

6.

Photosynthesis pigments other than chlorophyll are called

A. Accessory pigments

B. Carotenoids

C. Primary pigments

D. Phycobilirs

7 / 40

7.

Digested food materials are carried to all parts of plant especially

A. all of the options

B. stem

C. root apices

D. leaves

8 / 40

8.

The photosynthetic pigments are located in the thylakoid membranes of

 

A. Leucoplasts

B. Cytoplasts

C. Chloroplasts

D. Protoplasts

9 / 40

9.

A segment of image is magnified by the eyepiece(ocular). What is the best resolving power?

 

A. 0.2 uM

B. 0.4 mm

C. 0.1 nM

D. 3.0 uM

10 / 40

10.

Sugar is transported away from leaf through

 

A. Closely packed palisade cells

B. Phloem tissues

C. Loosely arranged spongy tissues

D. Bean like stomata cells

11 / 40

11.

The pigments which are highly efficient in absorbing solar energy are

A. Chlorophylls

B. Phycobilins

C. Carotenoids

D. Xanthophylls

12 / 40

12.

To facilitate entry of CO2 in leaf is done through stomata as well as through water film on the

 

A. Lower epidermis

B. spongy mesophyll cells

C. palisade mesophyll cells

D. upper epidermis

13 / 40

13.

Prokaryotic cell does not possess

A. Plasma membrane

B. Cell wall

C. Nuclear membrane

D. Cytoplasm

14 / 40

14.

Plants can be called as

A. Heterotrophy

B. Chemoautotrophs

C. Autotrophs

D. Photoautotroph

15 / 40

15.

Amino acids are assimilated to form

A. New cytoplasm

B. New protoplasm

C. New shoot cells

D. New cell walls

16 / 40

16.

Directly linked pigments to photosynthetic electron transport are

A. Carotenoids

B. Xanthophylls

C. Chlorophylls

D. Phycobilins

17 / 40

17.

Biochemically, Photosynthesis is defined as

A. Synthesis with the help of light

B. Energy tranducing process

C. Conversion of solar energy to chemical energy

D. Reduction of CO2 to carbohydrates with the help of ATP and NADPH

18 / 40

18.

Hydrophonics refers to

A. Growing plants without soil

B. Growing plants in soil

C. All the options

D. Growing plants in air

19 / 40

19.

How thick are paraffin embedded sections that has been cut ?

A. 3-4mm

B. 5-8 uM

C. 4-5nm

D. 5-8 nM

20 / 40

20.

Extra nuclear DNA is found in

A. Endoplasmic reticulum

B. Ribosomes

C. Nucleus

D. Chloroplast

21 / 40

21.

Phosphorylation is the synthesis of

 

A. FMN

B. ATP

C. ADP

D. NADP

22 / 40

22.

Ribosomes help in

A. Lipid Synthesis

B. Respiration

C. Protein synthesis

D. Photosyntheis

23 / 40

23.

Simplest carbohydrates (CnH2mOm) are

A. Galactose

B. Peptones

C. Glucose

D. Sugars

24 / 40

24.

Simplest carbohydrates (CnH2nOn) are

A. Peptones

B. Galactose

C. Sugars

D. Glucose

25 / 40

25.

To facilitate entry of CO2 in leaf is done through stomata as well as through water film on the

 

A. spongy mesophyll cells

B. lower epidermis

C. palisade mesophyll cells

D. upper epidermis

26 / 40

26.

How can you achieve better resolution in microscopy ?

 

A. Using a mixture of paraffin and resin

B. Using thinner resin-embedded sections

C. Using formaldehyde-embedded sections

D. Using paraffin-embedded sections

27 / 40

27.

When water is used as the proton and electron source the byproduct evolved is

A. H20

B. H2S

C. CO2

D. O2

28 / 40

28.

The protons and electrons required to reduce NADP⁺ to NADPHcome from

A. H2S

B. CO2

C. H2O

D. (CH2O)n

29 / 40

29.

Sucrose developed from excess sugars is transported for storage to

A. Stem Tubers

B. Seeds

C. All the options

D. Root tubers

30 / 40

30.

Chlorophyll of bacteria are called

A. Xanthophylls

B. Primary pigments

C. Accessory pigments

D. Bacteriochlorophylls

31 / 40

31.

In dark reaction, these are required for the reduction of CO2 to carbohydrates

A. All the options

B. ATP and NADPH

C. ATP and NADP

D. ADP and NAD

32 / 40

32.

Plasma membrane is composed of

A. Protein

B. Lipids

C. Protein and Lipids

D. Cellulose

33 / 40

33.

Leaves are not essential for

A. Receive sunlight

B. starch formation

C. Intake of carbon dioxide

D. photosynthesis

34 / 40

34.

Light dependent stage cannot be carried out without

A. Oxygen

B. carbon dioxide

C. Water

D. All of the options

35 / 40

35.

An organic molecule which can absorb the solar energy in the visible region is

 

A. Enzyme

B. protein

C. vitamin

D. pigment

36 / 40

36.

O2 is not evolved in this

 

A. Oxygenic photosynthesis

B. Anoxygenic photosynthesis

C. Test tube-funnel experiment

D. photosynthesis

37 / 40

37.

Carbon dioxide (CO2) taken in night is stored in form of

 

A. Carbon Monoxide

B. Chemical energy

C. dark energy

D. Physical energy

38 / 40

38.

The process of splitting water molecules in the presence of light energy is called

A. Electrolysis

B. Thermolysis

C. Photolysis

D. Hydrolysis

39 / 40

39.

Through enzyme pepsin, proteins can be changed to

A. Polypeptides

B. Fatty acids

C. Amino acids

D. Cellulose

40 / 40

40.

An essential component of chlorophyll molecule is

A. Copper

B. Magnanese

C. Iron

D. Magnesium

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