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

Don’t be in a hurry to submit, you are not in a competition

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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

PHS 211

1 / 40

1.

Sugar is transported away from leaf through

 

A. Loosely arranged spongy tissues

B. Phloem tissues

C. Closely packed palisade cells

D. Bean like stomata cells

2 / 40

2.

The main difference between animal and plant cell is that

A. Animal cells have vacuoles

B. Plant cell lack rigid cell wall

C. Plant cells have small vacuoles

D. Animal cell lack rigid cell wall

3 / 40

3.

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

4 / 40

4.

Plasma membrane is composed of

A. Protein and Lipids

B. Lipids

C. Cellulose

D. Protein

5 / 40

5.

Simplest carbohydrates (CnH2nOn) are

A. Glucose

B. Sugars

C. Peptones

D. Galactose

6 / 40

6.

Light reactions involve

 

A. Pigments

B. Pigments and water

C. Pigments and solar energy

D. Pigments, solar energy and water

7 / 40

7.

Biochemically, Photosynthesis is defined as

A. Conversion of solar energy to chemical energy

B. Energy tranducing process

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

D. Synthesis with the help of light

8 / 40

8.

Extra nuclear DNA is found in

A. Chloroplast

B. Endoplasmic reticulum

C. Ribosomes

D. Nucleus

9 / 40

9.

NADP stands for

A. Nicotinamide Adenine Dinucleotide Phosphate

B. Nitryl Adenine Diphosphate

C. Nicotin Adenine Dinucleotide Pyruvate

D. Nitrate Amine Disaccharide Phosphate

10 / 40

10.

The byproduct evolved in oxygenic photosynthesis occurs in some

A. Micro organisms

B. Lower organisms

C. Higher organisms

D. Macro organisms

11 / 40

11.

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

A. Toluidine blue

B. Hematoxylin and eosin

C. Sudan III

D. Blue trichrome

12 / 40

12.

Plants can be called as

A. Heterotrophy

B. Photoautotroph

C. Autotrophs

D. Chemoautotrophs

13 / 40

13.

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

14 / 40

14.

Sucrose developed from excess sugars is transported for storage to

A. Seeds

B. Root tubers

C. All the options

D. Stem Tubers

15 / 40

15.

How thick are paraffin embedded sections that has been cut ?

A. 4-5nm

B. 3-4mm

C. 5-8 nM

D. 5-8 uM

16 / 40

16.

Prokaryotic cell does not possess

A. Cell wall

B. Plasma membrane

C. Nuclear membrane

D. Cytoplasm

17 / 40

17.

Conversion of solar energy to chemical energy is called

A. Photosynthesis

B. Respiration

C. Guttation

D. Transpiration

18 / 40

18.

Digested food materials are carried to all parts of plant especially

A. root apices

B. leaves

C. stem

D. all of the options

19 / 40

19.

Chlorophyll are

 

A. Primary pigments

B. Carotenoids

C. Accessory pigments

D. Bacteriochlorophylls

20 / 40

20.

The chlorophyll is found in oval-shaped structures called as

A. stomata

B. chloroplast

C. starch

D. centrioles

21 / 40

21.

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

 

A. upper epidermis

B. palisade mesophyll cells

C. Lower epidermis

D. spongy mesophyll cells

22 / 40

22.

Cell theory states that

A. All cell have nuclei

B. Cells are fundamental structural units of plants and animals

C. All cells are living

D. Cell reproduce by mitosis and meiosis

23 / 40

23.

Mitochondria was first seen by

A. Robert Brown

B. Altmann

C. Lipmann

D. Robert Hooke

24 / 40

24.

Reducing power of light reaction is

A. ADP

B. NADPH

C. ATP

D. NAD

25 / 40

25.

Ribosomes help in

A. Protein synthesis

B. Lipid Synthesis

C. Respiration

D. Photosyntheis

26 / 40

26.

The tiny indivisible units that contain light energy are

 

A. protons

B. electrons

C. neutrons

D. photons

27 / 40

27.

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

A. 60 S and 10 S

B. 50 S and 30 S

C. 50 S and 20S

D. 40 S and 30 S

28 / 40

28.

Amino acids are assimilated to form

A. New shoot cells

B. New cell walls

C. New protoplasm

D. New cytoplasm

29 / 40

29.

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

 

A. spongy mesophyll cells

B. lower epidermis

C. palisade mesophyll cells

D. upper epidermis

30 / 40

30.

The raw materials for needed for photosynthesis include

A. Nutrients

B. All the options

C. Light

D. Organic Substance

31 / 40

31.

Leaves are not essential for

A. Receive sunlight

B. Intake of carbon dioxide

C. photosynthesis

D. starch formation

32 / 40

32.

Food is converted to energy in

A. Nucleus

B. Chloroplast

C. Mitochondria

D. Nucleolus

33 / 40

33.

Simplest carbohydrates (CnH2mOm) are

A. Peptones

B. Galactose

C. Glucose

D. Sugars

34 / 40

34.

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

A. H2O

B. CO2

C. (CH2O)n

D. H2S

35 / 40

35.

Directly linked pigments to photosynthetic electron transport are

A. Carotenoids

B. Chlorophylls

C. Phycobilins

D. Xanthophylls

36 / 40

36.

Photosynthesis pigments other than chlorophyll are called

A. Primary pigments

B. Carotenoids

C. Accessory pigments

D. Phycobilirs

37 / 40

37.

O2 is not evolved in this

 

A. Anoxygenic photosynthesis

B. photosynthesis

C. Test tube-funnel experiment

D. Oxygenic photosynthesis

38 / 40

38.

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

A. Electrolysis

B. Thermolysis

C. Hydrolysis

D. Photolysis

39 / 40

39.

What staining is best for lipid detection ?

A. Berlin blue

B. Sudan III IV

C. Colloid gold

D. Feulgens nuclear reaction

40 / 40

40.

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

 

A. Enzyme

B. protein

C. pigment

D. vitamin

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