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

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Move as fast as possible and starting with questions that don’t have calculation first to save time

Always crosscheck

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Created on February 06, 2024 By Ace/Undergragra

BIO 203

1 / 40

1.

Light dependent stage cannot be carried out without

A. carbon dioxide

B. Oxygen

C. Water

D. All of the options

2 / 40

2.

Food is converted to energy in

A. Chloroplast

B. Mitochondria

C. Nucleolus

D. Nucleus

3 / 40

3.

Amino acids are assimilated to form

A. New cell walls

B. New cytoplasm

C. New shoot cells

D. New protoplasm

4 / 40

4.

Ribosomes help in

A. Protein synthesis

B. Photosyntheis

C. Lipid Synthesis

D. Respiration

5 / 40

5.

NADP stands for

A. Nicotin Adenine Dinucleotide Pyruvate

B. Nitryl Adenine Diphosphate

C. Nicotinamide Adenine Dinucleotide Phosphate

D. Nitrate Amine Disaccharide Phosphate

6 / 40

6.

The byproduct evolved in oxygenic photosynthesis occurs in some

A. Lower organisms

B. Macro organisms

C. Higher organisms

D. Micro organisms

7 / 40

7.

Directly linked pigments to photosynthetic electron transport are

A. Phycobilins

B. Chlorophylls

C. Xanthophylls

D. Carotenoids

8 / 40

8.

Light reactions involve

 

A. Pigments and solar energy

B. Pigments

C. Pigments and water

D. Pigments, solar energy and water

9 / 40

9.

The main difference between animal and plant cell is that

A. Plant cell lack rigid cell wall

B. Plant cells have small vacuoles

C. Animal cell lack rigid cell wall

D. Animal cells have vacuoles

10 / 40

10.

Simplest carbohydrates (CnH2nOn) are

A. Galactose

B. Glucose

C. Peptones

D. Sugars

11 / 40

11.

Cellular organelles containing hydrolytic enzymes are called

A. Ribosomes

B. Lysosomes

C. Peroxisomes

D. Mesosomes

12 / 40

12.

Plants can be called as

A. Chemoautotrophs

B. Photoautotroph

C. Autotrophs

D. Heterotrophy

13 / 40

13.

The chlorophyll is found in oval-shaped structures called as

A. starch

B. stomata

C. chloroplast

D. centrioles

14 / 40

14.

Simplest carbohydrates (CnH2mOm) are

A. Peptones

B. Galactose

C. Glucose

D. Sugars

15 / 40

15.

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

 

A. Lower epidermis

B. upper epidermis

C. spongy mesophyll cells

D. palisade mesophyll cells

16 / 40

16.

Nitrogen, phosphorus and sulphur are examples of

A. Non-essential non-metallic elements

B. Essential non-metallic elements

C. Essential metallic elements

D. Non-essential metallic elements

17 / 40

17.

Phosphorylation is the synthesis of

 

A. FMN

B. ATP

C. ADP

D. NADP

18 / 40

18.

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

 

A. lower epidermis

B. palisade mesophyll cells

C. spongy mesophyll cells

D. upper epidermis

19 / 40

19.

An essential component of chlorophyll molecule is

A. Copper

B. Magnesium

C. Iron

D. Magnanese

20 / 40

20.

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

A. H2O

B. H2S

C. (CH2O)n

D. CO2

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. 60 S and 10 S

C. 50 S and 20S

D. 50 S and 30 S

22 / 40

22.

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

 

A. dark energy

B. Physical energy

C. Carbon Monoxide

D. Chemical energy

23 / 40

23.

Prokaryotic cell does not possess

A. Plasma membrane

B. Cell wall

C. Nuclear membrane

D. Cytoplasm

24 / 40

24.

How can you achieve better resolution in microscopy ?

 

A. Using formaldehyde-embedded sections

B. Using thinner resin-embedded sections

C. Using paraffin-embedded sections

D. Using a mixture of paraffin and resin

25 / 40

25.

Chlorophyll are

 

A. Accessory pigments

B. Bacteriochlorophylls

C. Primary pigments

D. Carotenoids

26 / 40

26.

The photosynthetic pigments are located in the thylakoid membranes of

 

A. Chloroplasts

B. Leucoplasts

C. Cytoplasts

D. Protoplasts

27 / 40

27.

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

A. Thermolysis

B. Hydrolysis

C. Photolysis

D. Electrolysis

28 / 40

28.

Sugar is transported away from leaf through

 

A. Bean like stomata cells

B. Closely packed palisade cells

C. Loosely arranged spongy tissues

D. Phloem tissues

29 / 40

29.

What staining is best for lipid detection ?

A. Colloid gold

B. Sudan III IV

C. Berlin blue

D. Feulgens nuclear reaction

30 / 40

30.

Mitochondria was first seen by

A. Altmann

B. Lipmann

C. Robert Brown

D. Robert Hooke

31 / 40

31.

Photolysis means

 

A. Light reaction

B. Photophosphorylation

C. Splitting of water molecules

D. Splitting of light

32 / 40

32.

Reducing power of light reaction is

A. ATP

B. ADP

C. NADPH

D. NAD

33 / 40

33.

How thick are paraffin embedded sections that has been cut ?

A. 3-4mm

B. 5-8 nM

C. 4-5nm

D. 5-8 uM

34 / 40

34.

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

A. Mineral nutrients

B. Carbon dioxide (CO2)

C. Essential metallic elements

D. Essential non-metallic elements

35 / 40

35.

Digested food materials are carried to all parts of plant especially

A. all of the options

B. root apices

C. leaves

D. stem

36 / 40

36.

Conversion of solar energy to chemical energy is called

A. Transpiration

B. Photosynthesis

C. Respiration

D. Guttation

37 / 40

37.

Chlorophyll of bacteria are called

A. Primary pigments

B. Bacteriochlorophylls

C. Xanthophylls

D. Accessory pigments

38 / 40

38.

Extra nuclear DNA is found in

A. Endoplasmic reticulum

B. Chloroplast

C. Nucleus

D. Ribosomes

39 / 40

39.

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

A. H2S

B. CO2

C. O2

D. H20

40 / 40

40.

Hydrophonics refers to

A. Growing plants without soil

B. Growing plants in air

C. All the options

D. Growing plants in soil

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