BIO 203 CBT PRACTICE TEST

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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 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

Always crosscheck

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70 – 100 A

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45 – 49 D

40 – 44 E

0 – 39 F

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Created on February 06, 2024 By Ace/Undergragra

BIO 203

1 / 40

1.

NADP stands for

A. Nicotinamide Adenine Dinucleotide Phosphate

B. Nicotin Adenine Dinucleotide Pyruvate

C. Nitrate Amine Disaccharide Phosphate

D. Nitryl Adenine Diphosphate

2 / 40

2.

What staining is best for lipid detection ?

A. Colloid gold

B. Sudan III IV

C. Berlin blue

D. Feulgens nuclear reaction

3 / 40

3.

Digested food materials are carried to all parts of plant especially

A. stem

B. root apices

C. leaves

D. all of the options

4 / 40

4.

Leaves are not essential for

A. Intake of carbon dioxide

B. Receive sunlight

C. starch formation

D. photosynthesis

5 / 40

5.

An essential component of chlorophyll molecule is

A. Magnanese

B. Magnesium

C. Copper

D. Iron

6 / 40

6.

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

 

A. 0.1 nM

B. 0.2 uM

C. 3.0 uM

D. 0.4 mm

7 / 40

7.

Hydrophonics refers to

A. All the options

B. Growing plants in soil

C. Growing plants without soil

D. Growing plants in air

8 / 40

8.

The byproduct evolved in oxygenic photosynthesis occurs in some

A. Macro organisms

B. Micro organisms

C. Lower organisms

D. Higher organisms

9 / 40

9.

Cellular organelles containing hydrolytic enzymes are called

A. Peroxisomes

B. Ribosomes

C. Lysosomes

D. Mesosomes

10 / 40

10.

Cell theory states that

A. Cell reproduce by mitosis and meiosis

B. Cells are fundamental structural units of plants and animals

C. All cells are living

D. All cell have nuclei

11 / 40

11.

Phosphorylation is the synthesis of

 

A. FMN

B. ATP

C. ADP

D. NADP

12 / 40

12.

Light reactions involve

 

A. Pigments

B. Pigments and solar energy

C. Pigments and water

D. Pigments, solar energy and water

13 / 40

13.

The raw material for photosynthesis are

A. Light energy and CO2

B. Light energy, CO2 and H2O

C. Light energy

D. Light energy, CO2, H2O and photosynthesis pigments

14 / 40

14.

The chlorophyll is found in oval-shaped structures called as

A. starch

B. stomata

C. chloroplast

D. centrioles

15 / 40

15.

Chlorophyll are

 

A. Bacteriochlorophylls

B. Primary pigments

C. Accessory pigments

D. Carotenoids

16 / 40

16.

Table of Contents

Toggle

Light dependent stage cannot be carried out without

A. Oxygen

B. carbon dioxide

C. Water

D. All of the options

17 / 40

17.

Through enzyme pepsin, proteins can be changed to

A. Amino acids

B. Fatty acids

C. Polypeptides

D. Cellulose

18 / 40

18.

Reducing power of light reaction is

A. NAD

B. NADPH

C. ATP

D. ADP

19 / 40

19.

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

A. Hydrolysis

B. Photolysis

C. Electrolysis

D. Thermolysis

20 / 40

20.

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

 

A. Physical energy

B. dark energy

C. Chemical energy

D. Carbon Monoxide

21 / 40

21.

The sedimentation constant of ribosome is generally 70S . Its breaks up into two subunits whose sedimentation constants are

A. 40 S and 30 S

B. 50 S and 20S

C. 50 S and 30 S

D. 60 S and 10 S

22 / 40

22.

Conversion of solar energy to chemical energy is called

A. Respiration

B. Photosynthesis

C. Transpiration

D. Guttation

23 / 40

23.

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

A. (CH2O)n

B. H2O

C. H2S

D. CO2

24 / 40

24.

Amino acids are assimilated to form

A. New cytoplasm

B. New protoplasm

C. New cell walls

D. New shoot cells

25 / 40

25.

How can you achieve better resolution in microscopy ?

 

A. Using a mixture of paraffin and resin

B. Using thinner resin-embedded sections

C. Using paraffin-embedded sections

D. Using formaldehyde-embedded sections

26 / 40

26.

What are epoxy resin sections stained with after being cut with a microtome?

A. Blue trichrome

B. Sudan III

C. Hematoxylin and eosin

D. Toluidine blue

27 / 40

27.

The tiny indivisible units that contain light energy are

 

A. protons

B. photons

C. neutrons

D. electrons

28 / 40

28.

The raw materials for needed for photosynthesis include

A. All the options

B. Organic Substance

C. Light

D. Nutrients

29 / 40

29.

The pigments which are highly efficient in absorbing solar energy are

A. Xanthophylls

B. Chlorophylls

C. Phycobilins

D. Carotenoids

30 / 40

30.

Photolysis means

 

A. Light reaction

B. Splitting of water molecules

C. Photophosphorylation

D. Splitting of light

31 / 40

31.

Chlorophyll of bacteria are called

A. Bacteriochlorophylls

B. Xanthophylls

C. Accessory pigments

D. Primary pigments

32 / 40

32.

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

 

A. upper epidermis

B. spongy mesophyll cells

C. Lower epidermis

D. palisade mesophyll cells

33 / 40

33.

Mitochondria was first seen by

A. Altmann

B. Robert Brown

C. Robert Hooke

D. Lipmann

34 / 40

34.

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

A. ADP and NAD

B. ATP and NADP

C. ATP and NADPH

D. All the options

35 / 40

35.

Food is converted to energy in

A. Nucleolus

B. Chloroplast

C. Nucleus

D. Mitochondria

36 / 40

36.

Even in presence of sunlight and water, photosynthesis cannot occur due to lack of

A. Essential metallic elements

B. Mineral nutrients

C. Essential non-metallic elements

D. Carbon dioxide (CO2)

37 / 40

37.

Ribosomes help in

A. Protein synthesis

B. Respiration

C. Photosyntheis

D. Lipid Synthesis

38 / 40

38.

Biochemically, Photosynthesis is defined as

A. Synthesis with the help of light

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

C. Conversion of solar energy to chemical energy

D. Energy tranducing process

39 / 40

39.

Photosynthesis pigments other than chlorophyll are called

A. Carotenoids

B. Phycobilirs

C. Accessory pigments

D. Primary pigments

40 / 40

40.

The photosynthetic pigments are located in the thylakoid membranes of

 

A. Protoplasts

B. Chloroplasts

C. Leucoplasts

D. Cytoplasts

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