BIO 203 CBT PRACTICE TEST

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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

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Created on February 06, 2024 By Ace/Undergragra

BIO 203

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1.

Table of Contents

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The photosynthetic pigments are located in the thylakoid membranes of

 

A. Protoplasts

B. Leucoplasts

C. Chloroplasts

D. Cytoplasts

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2.

Amino acids are assimilated to form

A. New cell walls

B. New cytoplasm

C. New shoot cells

D. New protoplasm

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3.

Food is converted to energy in

A. Nucleus

B. Nucleolus

C. Chloroplast

D. Mitochondria

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4.

Leaves are not essential for

A. photosynthesis

B. starch formation

C. Intake of carbon dioxide

D. Receive sunlight

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5.

Plants can be called as

A. Heterotrophy

B. Photoautotroph

C. Chemoautotrophs

D. Autotrophs

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6.

Sucrose developed from excess sugars is transported for storage to

A. Stem Tubers

B. Seeds

C. Root tubers

D. All the options

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7.

Mitochondria was first seen by

A. Robert Brown

B. Robert Hooke

C. Lipmann

D. Altmann

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8.

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

 

A. 0.4 mm

B. 3.0 uM

C. 0.1 nM

D. 0.2 uM

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9.

Simplest carbohydrates (CnH2mOm) are

A. Sugars

B. Galactose

C. Glucose

D. Peptones

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10.

The main difference between animal and plant cell is that

A. Plant cells have small vacuoles

B. Animal cell lack rigid cell wall

C. Animal cells have vacuoles

D. Plant cell lack rigid cell wall

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11.

Through enzyme pepsin, proteins can be changed to

A. Polypeptides

B. Cellulose

C. Amino acids

D. Fatty acids

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12.

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

A. Thermolysis

B. Electrolysis

C. Hydrolysis

D. Photolysis

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13.

What staining is best for lipid detection ?

A. Berlin blue

B. Sudan III IV

C. Feulgens nuclear reaction

D. Colloid gold

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14.

Prokaryotic cell does not possess

A. Nuclear membrane

B. Cytoplasm

C. Cell wall

D. Plasma membrane

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15.

The pigments which are highly efficient in absorbing solar energy are

A. Xanthophylls

B. Carotenoids

C. Chlorophylls

D. Phycobilins

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16.

Nitrogen, phosphorus and sulphur are examples of

A. Essential non-metallic elements

B. Essential metallic elements

C. Non-essential non-metallic elements

D. Non-essential metallic elements

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17.

Chlorophyll are

 

A. Primary pigments

B. Accessory pigments

C. Carotenoids

D. Bacteriochlorophylls

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18.

O2 is not evolved in this

 

A. Test tube-funnel experiment

B. photosynthesis

C. Oxygenic photosynthesis

D. Anoxygenic photosynthesis

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19.

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. palisade mesophyll cells

D. spongy mesophyll cells

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20.

The raw materials for needed for photosynthesis include

A. Nutrients

B. Light

C. All the options

D. Organic Substance

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21.

Photosynthesis pigments other than chlorophyll are called

A. Accessory pigments

B. Carotenoids

C. Phycobilirs

D. Primary pigments

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22.

The tiny indivisible units that contain light energy are

 

A. neutrons

B. electrons

C. protons

D. photons

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23.

Sugar is transported away from leaf through

 

A. Closely packed palisade cells

B. Bean like stomata cells

C. Phloem tissues

D. Loosely arranged spongy tissues

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24.

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

 

A. Physical energy

B. dark energy

C. Chemical energy

D. Carbon Monoxide

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25.

NADP stands for

A. Nitryl Adenine Diphosphate

B. Nicotin Adenine Dinucleotide Pyruvate

C. Nicotinamide Adenine Dinucleotide Phosphate

D. Nitrate Amine Disaccharide Phosphate

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26.

Light reactions involve

 

A. Pigments and solar energy

B. Pigments

C. Pigments and water

D. Pigments, solar energy and water

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27.

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

A. H2S

B. H2O

C. (CH2O)n

D. CO2

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28.

Hydrophonics refers to

A. Growing plants in air

B. Growing plants in soil

C. All the options

D. Growing plants without soil

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29.

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

A. CO2

B. O2

C. H2S

D. H20

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30.

Reducing power of light reaction is

A. ADP

B. NADPH

C. NAD

D. ATP

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31.

Extra nuclear DNA is found in

A. Chloroplast

B. Ribosomes

C. Endoplasmic reticulum

D. Nucleus

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32.

How thick are paraffin embedded sections that has been cut ?

A. 4-5nm

B. 3-4mm

C. 5-8 nM

D. 5-8 uM

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33.

Simplest carbohydrates (CnH2nOn) are

A. Sugars

B. Peptones

C. Glucose

D. Galactose

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34.

Conversion of solar energy to chemical energy is called

A. Photosynthesis

B. Guttation

C. Transpiration

D. Respiration

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35.

Biochemically, Photosynthesis is defined as

A. Energy tranducing process

B. Conversion of solar energy to chemical energy

C. Synthesis with the help of light

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

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36.

How can you achieve better resolution in microscopy ?

 

A. Using paraffin-embedded sections

B. Using formaldehyde-embedded sections

C. Using thinner resin-embedded sections

D. Using a mixture of paraffin and resin

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37.

Cellular organelles containing hydrolytic enzymes are called

A. Ribosomes

B. Lysosomes

C. Peroxisomes

D. Mesosomes

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38.

The chlorophyll is found in oval-shaped structures called as

A. stomata

B. starch

C. chloroplast

D. centrioles

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39.

The byproduct evolved in oxygenic photosynthesis occurs in some

A. Macro organisms

B. Higher organisms

C. Lower organisms

D. Micro organisms

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40.

Light dependent stage cannot be carried out without

A. carbon dioxide

B. All of the options

C. Water

D. Oxygen

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