PHS 211 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 PHS 211 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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40 – 44 E

0 – 39 F

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Created on February 06, 2024 By Ace/Undergragra

PHS 211

1 / 40

1.

Hydrophonics refers to

A. Growing plants in soil

B. All the options

C. Growing plants in air

D. Growing plants without soil

2 / 40

2.

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

A. Essential metallic elements

B. Essential non-metallic elements

C. Carbon dioxide (CO2)

D. Mineral nutrients

3 / 40

3.

Extra nuclear DNA is found in

A. Nucleus

B. Chloroplast

C. Endoplasmic reticulum

D. Ribosomes

4 / 40

4.

How can you achieve better resolution in microscopy ?

 

A. Using thinner resin-embedded sections

B. Using formaldehyde-embedded sections

C. Using paraffin-embedded sections

D. Using a mixture of paraffin and resin

5 / 40

5.

Table of Contents

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The raw materials for needed for photosynthesis include

A. Organic Substance

B. Nutrients

C. All the options

D. Light

6 / 40

6.

The tiny indivisible units that contain light energy are

 

A. protons

B. photons

C. neutrons

D. electrons

7 / 40

7.

Directly linked pigments to photosynthetic electron transport are

A. Chlorophylls

B. Carotenoids

C. Phycobilins

D. Xanthophylls

8 / 40

8.

Photosynthesis pigments other than chlorophyll are called

A. Primary pigments

B. Phycobilirs

C. Accessory pigments

D. Carotenoids

9 / 40

9.

How thick are paraffin embedded sections that has been cut ?

A. 3-4mm

B. 5-8 nM

C. 4-5nm

D. 5-8 uM

10 / 40

10.

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

 

A. spongy mesophyll cells

B. palisade mesophyll cells

C. upper epidermis

D. Lower epidermis

11 / 40

11.

Simplest carbohydrates (CnH2nOn) are

A. Glucose

B. Peptones

C. Sugars

D. Galactose

12 / 40

12.

Digested food materials are carried to all parts of plant especially

A. stem

B. leaves

C. all of the options

D. root apices

13 / 40

13.

Nitrogen, phosphorus and sulphur are examples of

A. Non-essential non-metallic elements

B. Non-essential metallic elements

C. Essential non-metallic elements

D. Essential metallic elements

14 / 40

14.

Sucrose developed from excess sugars is transported for storage to

A. Root tubers

B. Stem Tubers

C. Seeds

D. All the options

15 / 40

15.

What staining is best for lipid detection ?

A. Colloid gold

B. Sudan III IV

C. Berlin blue

D. Feulgens nuclear reaction

16 / 40

16.

Prokaryotic cell does not possess

A. Cytoplasm

B. Plasma membrane

C. Nuclear membrane

D. Cell wall

17 / 40

17.

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

A. 50 S and 20S

B. 60 S and 10 S

C. 40 S and 30 S

D. 50 S and 30 S

18 / 40

18.

Phosphorylation is the synthesis of

 

A. ADP

B. ATP

C. FMN

D. NADP

19 / 40

19.

Cell theory states that

A. Cell reproduce by mitosis and meiosis

B. Cells are fundamental structural units of plants and animals

C. All cell have nuclei

D. All cells are living

20 / 40

20.

The byproduct evolved in oxygenic photosynthesis occurs in some

A. Lower organisms

B. Micro organisms

C. Macro organisms

D. Higher organisms

21 / 40

21.

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

A. Photolysis

B. Electrolysis

C. Hydrolysis

D. Thermolysis

22 / 40

22.

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

23 / 40

23.

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

 

A. Enzyme

B. vitamin

C. protein

D. pigment

24 / 40

24.

NADP stands for

A. Nicotin Adenine Dinucleotide Pyruvate

B. Nitrate Amine Disaccharide Phosphate

C. Nicotinamide Adenine Dinucleotide Phosphate

D. Nitryl Adenine Diphosphate

25 / 40

25.

Simplest carbohydrates (CnH2mOm) are

A. Peptones

B. Glucose

C. Sugars

D. Galactose

26 / 40

26.

An essential component of chlorophyll molecule is

A. Magnanese

B. Copper

C. Iron

D. Magnesium

27 / 40

27.

Food is converted to energy in

A. Nucleus

B. Mitochondria

C. Nucleolus

D. Chloroplast

28 / 40

28.

Sugar is transported away from leaf through

 

A. Phloem tissues

B. Loosely arranged spongy tissues

C. Bean like stomata cells

D. Closely packed palisade cells

29 / 40

29.

Chlorophyll are

 

A. Carotenoids

B. Primary pigments

C. Bacteriochlorophylls

D. Accessory pigments

30 / 40

30.

Plants can be called as

A. Chemoautotrophs

B. Photoautotroph

C. Heterotrophy

D. Autotrophs

31 / 40

31.

O2 is not evolved in this

 

A. Test tube-funnel experiment

B. photosynthesis

C. Oxygenic photosynthesis

D. Anoxygenic photosynthesis

32 / 40

32.

Chlorophyll of bacteria are called

A. Bacteriochlorophylls

B. Primary pigments

C. Xanthophylls

D. Accessory pigments

33 / 40

33.

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

 

A. 0.1 nM

B. 0.4 mm

C. 3.0 uM

D. 0.2 uM

34 / 40

34.

Conversion of solar energy to chemical energy is called

A. Respiration

B. Photosynthesis

C. Guttation

D. Transpiration

35 / 40

35.

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

 

A. spongy mesophyll cells

B. upper epidermis

C. palisade mesophyll cells

D. lower epidermis

36 / 40

36.

Photolysis means

 

A. Splitting of light

B. Splitting of water molecules

C. Photophosphorylation

D. Light reaction

37 / 40

37.

Plasma membrane is composed of

A. Cellulose

B. Protein

C. Lipids

D. Protein and Lipids

38 / 40

38.

Through enzyme pepsin, proteins can be changed to

A. Fatty acids

B. Amino acids

C. Polypeptides

D. Cellulose

39 / 40

39.

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

A. Blue trichrome

B. Hematoxylin and eosin

C. Toluidine blue

D. Sudan III

40 / 40

40.

Reducing power of light reaction is

A. NAD

B. ADP

C. NADPH

D. ATP

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