MDCAT BIOLOGY-Prokaryotes (SMART INSTITUTE)

A detailed illustration of various bacteria, including cocci, bacilli, and spirilla, in a scientific setting, with educational labels describing their structures and fun<wbr>ctions.

Test Your Knowledge on Prokaryotes

Welcome to the MDCAT Biology Quiz on Prokaryotes! This quiz aims to challenge your understanding of bacterial structure, function, and classification. Whether you're a student preparing for exams or just curious about the world of bacteria, this quiz is designed for you.

Key Features:

30 multiple choice questions
Learn about bacteria and their unique traits
Test your knowledge against a variety of topics

60 Questions15 MinutesCreated by LearningCell123

01-WOF is common waste material in bacteria?

Acetic acid

Glycogen

Sulphur

Phosphate

02-Unifying character of all bacteria

Peptidoglycan

Haploid

Conjugation

Capsule

03-When cocci form long chain of cells then arrangement is called:

Diplococci

Streptococci

Sarcina

Staphylococci

04-Bacteria cannot survive in a highly salted pickle because of

Osmotic lysis

Inability to do photosynthesis

Plasmolysis and killing

Lack of supply of nutrients

05-Antibiotics are mostly obtained from

Bacteria

Viruses

Angiosperms

Fungi

06-Some complex bacterial cells have

Mesosomes

Golgi bodies

Mitochondria

Chloroplast

07-Gram positive bacteria differ from Gram negative bacteria in the structure of their

Nucleoid

Cytoplasm

Cell wall

Ribosomes

08-Vibrio cholera belongs to which category

Coccus

Bacillus

Diplococcus

Spirochete

09-The flagella of bacteria are composed of

Carbohydrate

Lipid

Tubulin

Flagellin

10-Conjugation introduces ..... In bacterial population.

Identical features

New traits

Mutations

Old traits

11-Comma-shaped bacteria are

Vibrio

Spirillum

Spirochete

Cocus

12-Nitrogen fixing organism which can be symbiotic is

Dinoflagellates

Rhizobium

Liverworts

Mosses

13-Bacterial ribosomes lie on/in

Cytoplasm

RER

Nuclear Membrane

Cell wall

14-WOF are the smallest bacteria?

E.coli

Spirochete

Mycoplasma

Streptococci

15-True pili are present in .... bacteria.

Gram negative

Gram positive

Staphylococci

Mycoplasma

16-Some bacteria are resistant to phagocytosis due to presence of

Cell wall

Flagella

Capsule

Slime

17-Plasma membrane and everything present in it is called

Leucoplast

Protoplast

Phragmoplast

Cytoplasm

18-In bacteria, WOF structure is responsible for drug and insect resistance

Slime

Capsule

Plasmid

Pili

19-Pick out the odd one:

Tetanus

Foot and mouth disease

Tobacco mosaic disease

Fellow fever

20-Mostly antibiotics are more effective during:

Lag phase

Log phase

Stationary phase

Decline phase

21-The transfer of genetic material from a donor bacterium to recipient bacterium termed as

Conjugation

Transformation

Transduction

Transfection

22-Bacteria produce spore in .... phase.

Lag phase

Log phase

Decline phase

Stationary phase

23-Respiratory enzymes in bacteria are present in

Mesosomes

Nucleoid

Cell wall

Cytoplasm

24-Bacteria present in canned foods is

Clostridium botulinum

Salmonella

Campylobacter

Streptococus

25-Haemophilus influenzae is a

Virus

Bacteria

Fungi

Protozoa

26-Bacteria that live in intestine and produce vitamin "K" belongs to:

Cocus

Bacillus

Spirochete

Spirilla

27-Dormant thick walled desiccation resistant body:

Endospore

Exospore

Mesospore

Cyst

28-In five kingdom classification unicellular, colonial and non-nucleated bacteria placed in:

Plantae

Animalia

Monera

Protista

29-The monerean devoid of cell wall is

Actinomycetes

Mycoplasma

Eubacteria

Archaebacteria

30-Antibiotics and hormones can be sterilized by using

Membrane filtration

Dry heat

Radiations

Moist heat

31-Largest number of bacteria may be found in the arrangement called as:

Streptococci

Tetrad

Sarcina

Diplococus

32-Primary Gram's stain is

Crystal violet

Safranin

CV-I

Iodine

33-Archaebacteria lack in their structure/composition:

Cell wall

Plasma membrane

Glycoproteins

Peptidoglycan

34-Bacterial plasma membrane is not involved in

Maintenance of cell shape

DNA replication

Cell division

Respiratory metabolism

35-All are the characteristics of Gram Positive bacteria except:

High content of peptidoglycan

Teichoic acid are present

High permeability

Stain pink with primary dye

36-Resistance against antibiotics is mainly increasing because of:

Misuse of antibiotics

Global warming

Green house effect

Allergies

37-Chemotherapeutic agent is/are

Antibiotic

Vaccine

Both above

Disinfectant

38-Cell envelop of a bacterium does not involve

Capsule

Slime

Cell wall

Plasma membrane

39-Feulgen stain is specifically used to identify:

Glycogen

Lactic acid

DNA

RNA

40-What is not true about bacterial spore?

Produced during differentiation of vegetative cells

Are heat resistant

Are desiccation resistant

May be exospores or endospores

41-What is true about antibiotics?

Always protein in nature

Always produced from living cells

Never cause side effects

Can also be synthesized in laboratory

42-Chemical substances used on living tissues that inhibit the growth of microorganism are called

Disinfectant

Antibiotic

Sanitizer

Antiseptics

43-Approximately how many species of bacteria are known to cause disease in humans?

100

200

150

250

44-Discoloration of teeth is due to misuse of

Tetracycline

Kanamycin

Ampicillin

Erythromycin

45-For sterilization, ...... Are used.

UV rays

Gamma rays

IR rays

X-rays

46-Deafness is caused by excess use of

Tetracycline

Levofloxacin

Streptomycin

Erythromycin

47-Bacteria play important role in:

Nitrogen cycle

Urea cycle

Carbon cycle

Water cycle

48-For sterilization, WOF is used?

Dry heat

Gamma rays

Moist heat

All of these

49-Pesticide and insecticides are made up of

Physical agents

Chemical agents

Biological agents

All of these

50-Removal of a parasite from the body of the host is called:

Sterilization

Disinfestation

Disinfection

None of these

51-What is the main role of bacteria?

CO2 cycle

Phosphorus cycle

Nitrogen cycle

All of these

52-Who coined the term Animalcules for microorganisms like Bacteria and protozoa?

Robert Koch

Alexander Fleming

Louis Pasteur

Leeuwenhoek

53-Rapid growth at exponential rate occurs in which phase of bacterial growth?

Lag

Stationary

Log

Decline

54-WOF refers to the region of RNA responsible for binding ribosomes during prokaryotic translation?

TATA box

Terminator

Promoter

Shine-Dalgarno sequence

55-Compound microscope was first used by

A.V. Leeuwenhoek

Janssen and Hans

Pasteur

None of these

56-WOF will not survive in the presence of Oxygen?

Constitutive anaerobe

Constitutive aerobe

Facultative anaerobe

Obligate anaerobe

57-Example of bacteria requiring low concentration of Oxygen is:

Spirochete

Pseudomonas

Escherichia

Campylobacter

58-Microscope's ability to distinguish between separate objects that are close together is called:

Magnification

Contrast

Resolving power

Scanning power

59-The nitrifying bacteria are an example of WOF?

Heterotrophic bacteria

Chemosynthetic bacteria

Saprotrophic bacteria

Parasitic bacteria

60-Robert Koch discovered bacteria that cause:

Tuberculosis and Typhoid

Tuberculosis and Measles

Tuberculosis and Cholera

All of above

MDCAT BIOLOGY-Prokaryotes (SMART INSTITUTE)

Test Your Knowledge on Prokaryotes

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