Home CBT TEST BIO 203 CBT PRACTICE TEST

BIO 203 CBT PRACTICE TEST

Phil

February 9, 2024

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

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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BIO 203

1 / 40

An essential component of chlorophyll molecule is

A. Copper

B. Magnanese

C. Iron

D. Magnesium

2 / 40

Photolysis means

A. Splitting of water molecules

B. Light reaction

C. Splitting of light

D. Photophosphorylation

3 / 40

Light reactions involve

A. Pigments

B. Pigments and solar energy

C. Pigments, solar energy and water

D. Pigments and water

4 / 40

Digested food materials are carried to all parts of plant especially

A. all of the options

B. root apices

C. stem

D. leaves

5 / 40

Through enzyme pepsin, proteins can be changed to

A. Amino acids

B. Polypeptides

C. Cellulose

D. Fatty acids

6 / 40

Food is converted to energy in

A. Nucleus

B. Nucleolus

C. Mitochondria

D. Chloroplast

7 / 40

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

8 / 40

The pigments which are highly efficient in absorbing solar energy are

A. Chlorophylls

B. Carotenoids

C. Xanthophylls

D. Phycobilins

9 / 40

The photosynthetic pigments are located in the thylakoid membranes of

A. Cytoplasts

B. Chloroplasts

C. Leucoplasts

D. Protoplasts

10 / 40

10.

Phosphorylation is the synthesis of

A. ATP

B. NADP

C. FMN

D. ADP

11 / 40

11.

Reducing power of light reaction is

A. ADP

B. ATP

C. NADPH

D. NAD

12 / 40

12.

The raw material for photosynthesis are

A. Light energy, CO2, H2O and photosynthesis pigments

B. Light energy and CO2

C. Light energy

D. Light energy, CO2 and H2O

13 / 40

13.

The tiny indivisible units that contain light energy are

A. photons

B. electrons

C. protons

D. neutrons

14 / 40

14.

Prokaryotic cell does not possess

A. Cell wall

B. Plasma membrane

C. Nuclear membrane

D. Cytoplasm

15 / 40

15.

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

A. H2O

B. H2S

C. (CH2O)n

D. CO2

16 / 40

16.

The byproduct evolved in oxygenic photosynthesis occurs in some

A. Higher organisms

B. Macro organisms

C. Lower organisms

D. Micro organisms

17 / 40

17.

Ribosomes help in

A. Photosyntheis

B. Lipid Synthesis

C. Protein synthesis

D. Respiration

18 / 40

18.

Simplest carbohydrates (CnH2nOn) are

A. Sugars

B. Galactose

C. Glucose

D. Peptones

19 / 40

19.

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

A. H20

B. CO2

C. O2

D. H2S

20 / 40

20.

Plants can be called as

A. Chemoautotrophs

B. Heterotrophy

C. Autotrophs

D. Photoautotroph

21 / 40

21.

Cell theory states that

A. Cells are fundamental structural units of plants and animals

B. All cell have nuclei

C. All cells are living

D. Cell reproduce by mitosis and meiosis

22 / 40

22.

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

A. Essential non-metallic elements

B. Essential metallic elements

C. Mineral nutrients

D. Carbon dioxide (CO2)

23 / 40

23.

Biochemically, Photosynthesis is defined as

A. Energy tranducing process

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

C. Conversion of solar energy to chemical energy

D. Synthesis with the help of light

24 / 40

24.

Cellular organelles containing hydrolytic enzymes are called

A. Mesosomes

B. Peroxisomes

C. Ribosomes

D. Lysosomes

25 / 40

25.

Hydrophonics refers to

A. Growing plants in soil

B. Growing plants in air

C. Growing plants without soil

D. All the options

26 / 40

26.

Directly linked pigments to photosynthetic electron transport are

A. Carotenoids

B. Chlorophylls

C. Phycobilins

D. Xanthophylls

27 / 40

27.

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

A. Chemical energy

B. Physical energy

C. dark energy

D. Carbon Monoxide

28 / 40

28.

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

A. 50 S and 30 S

B. 50 S and 20S

C. 60 S and 10 S

D. 40 S and 30 S

29 / 40

29.

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

A. ATP and NADPH

B. ADP and NAD

C. All the options

D. ATP and NADP

30 / 40

30.

Sucrose developed from excess sugars is transported for storage to

A. Stem Tubers

B. Seeds

C. Root tubers

D. All the options

31 / 40

31.

Chlorophyll are

A. Accessory pigments

B. Primary pigments

C. Carotenoids

D. Bacteriochlorophylls

32 / 40

32.

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

A. Electrolysis

B. Hydrolysis

C. Photolysis

D. Thermolysis

33 / 40

33.

The chlorophyll is found in oval-shaped structures called as

A. chloroplast

B. starch

C. centrioles

D. stomata

34 / 40

34.

Table of Contents

The main difference between animal and plant cell is that

A. Animal cell lack rigid cell wall

B. Plant cell lack rigid cell wall

C. Plant cells have small vacuoles

D. Animal cells have vacuoles

35 / 40

35.

Leaves are not essential for

A. starch formation

B. Intake of carbon dioxide

C. photosynthesis

D. Receive sunlight

36 / 40

36.

Light dependent stage cannot be carried out without

A. carbon dioxide

B. Water

C. Oxygen

D. All of the options

37 / 40

37.

Mitochondria was first seen by

A. Altmann

B. Robert Hooke

C. Lipmann

D. Robert Brown

38 / 40

38.

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

39 / 40

39.

Photosynthesis pigments other than chlorophyll are called