MICRO ORGANISMS QUIZ

Which of the following may account for the small size of the cells?

The number of mRNAs that can be produced by the nucleus

The surface area/volume ratio

All of these

The rate of diffusion

TRUE ANSWER : ?
YOUR ANSWER : ?

All of the following individuals contributed to cell theory except

Matthias Schleiden

Robert Hooke

Theodor Schwann

Rudolf Virchow

TRUE ANSWER : ?
YOUR ANSWER : ?

Archeal cells usually do not contain peptidoglycan, rather contain pseudo-peptidoglycan which is mainly composed of

N-acetyltalosaminuronic acid and D-amino acids

N-acetylmuramic acid and D-amino acids

N-acetyltalosaminuronic acid and L-amino acids

N-acetylmuramic acid and L-amino acids

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following structures is the smallest?

Viriod

Bacterium

Hydrogen atom

Mitochondrion

TRUE ANSWER : ?
YOUR ANSWER : ?

The phospholipids present in cytoplasm membrane of the archaeo-bacteria is

phosphoglycerides

polyisoprenoid branched chain lipids

polyisoprenoid

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Mycoplasmas, rickettsiae, and chlamydiae are

types of fungi

species of protozoa

forms of viruses

small bacteria

TRUE ANSWER : ?
YOUR ANSWER : ?

The idea of selective toxicity was first proposed by

Alexander Fleming

Louis Pasteur

Paul Ehrlich

Antony van Leeuwenhoek

TRUE ANSWER : ?
YOUR ANSWER : ?

All membranes of free-living organisms have phospholipid bilayers, but exception is

bacteria

archaea

protozoa

fungi

TRUE ANSWER : ?
YOUR ANSWER : ?

Who discovered the bacteria that cause cholera?

Louis Pasteur

Robert Koch

Pierre Berthelot

Rudolf Virchow

TRUE ANSWER : ?
YOUR ANSWER : ?

The three domain version of life on earth is based on the

characteristics of the cell wall

morphological traits

nucleic acid sequence data

metabolic traits

TRUE ANSWER : ?
YOUR ANSWER : ?

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