Cellular and Acellular life

It is known that red light_____ flowering in the long day plants.

Name the cyanobacteria which are helpful in fixing atmospheric nitrogen.

Herpes simplex is caused by __________ virus.

The cell suspension culture of __________ produces quinine.

Which of the following is used for lowering blood cholesterol?

Which of the following are spiral-shaped bacteria?

Name the enveloped RNA virus that causes infusion hepatitis.

The giant amoebas inhabit mud at the bottom of freshwater ponds and obtain energy from:

Which of the following is aerobic bacterium?

__________________ are used as important vectors in genetic engineering.

The major cell infected by HIV is

Symptoms of Herpes Simplex is:

Bacterial ‘death rate’ is equal to ‘birth rate; in:

The plants having foreign DNA incorporated into their cells are called:

What are the sequences of steps in which a bacteriophage attacks bacteria and injects its DNA?

The use of living organisms in industry for the production of useful products is known as:

Many bacteria are motile due to the presence of:

The life cycle in which the phage kills the bacteria is known as:

Gene can be made from mRNA using:

DNA polymerase is a temperature-insensitive enzyme extracted from:

Yeasts, the unicellular fungi belongs mostly to the group:

Phages which show lysogenic cycle are known as:

The chemical nature of primers used in the PCR process is _.

Genetic engineering has been successfully used to produce?

DNA polymerase enzyme for PCR is isolated from bacteria, Thermus aquaticus, because:

Complementary DNA molecule is:

Nitrifying bacteria are the examples of:

Which structure of prokaryotic cell will play the role of mitochondrion?

Number of major layer/layers of cell wall in gram positive bacteria is/are:

The molecules used to control virus during infection of animal cells are:

Virus is what type of agent?

All the following are disinfectants to control bacterial growth except:

Which of the following is an example of spiral shaped bacteria?

Bacterial cell have ability to maintain its shape through

Helicobacter pylori is an example of:

Number of layers of cell wall in Gram positive bacteria is:

What of the following virus contains single stranded DNA?

According to evolutionary studies. prokaryotes may have arisen around:

Which option is CORRECT about endospore?

Bacterial genome becomes diploid:

Prokaryotic cells lack:

Autotrophic mode of nutrition in an organism depends upon:

Respiration in Pseudomonas bacteria is:

Mesosomes are the invaginations of which bacterial cell structure?

Why are retroviruses placed in a separate class of RNA viruses?

Mesosomes are infoldings of the cell membrane and are involved in

Antibiotics that kill microbes immediately are called

The structure which contains the gene for drug resistance in bacteria are

A slippery outer covering in some bacteria that protects them from phagocytosis by host cells is:

Which is not present in bacteria?

Heat sensitive compounds like antibodies seras and hormones can be sterilized by means of:

Pick up the bacteria with exceptional shape:

Bacteria vary in:

Which one of the following is a specific structure of bacterial cell?

It gives shape to the bacterial cell:

Bacteria that can grow in the absence of oxygen are called as:

The bacteria which get their food from dead organic matter are called as:

Pili are hollow, non helical, filamentous appendages in bacteria. Which one is not true for pili:

Single cell of rod shaped bacteria is called as:

When cocci occur in pairs, this arrangement is called _

It is responsible for drug resistance in bacteria:

Antibiotics act against:

DNA of bacteria is present in:

Square of four cocci is_.

Important vectors in modern genetic engineering are _

Pick up the component which is comparatively in greater amount in Gram -ve cell wall:

Killing bacteria from a living surface by using some chemical substance is called:

Diameter of E. coli is_ to_ micrometer:

Moist heat cause_and kill the microbes:

The plasma membrane of eukaryotes differs from that of bacteria in having:

Cell wall is only absent in:

Many bacteria are motile due to presence of:

The reaction involved in chemotrophic nutrition is:

Cell wall of gram-positive bacteria is composed of:

For sterilization purposes, generally, X-rays are used which cause:

Photosythetic bacteria have the ablilty to release:

Which of the following provides resistance against high temperature?

The chemical substances that are used to inhibit the growth of micro organism on living surfaces, are called:

Nitrifying bacteria belong to following group:

During the sterilization process, in order to control pathogens, we use dry heat that causes?

If in solution some bacteria infected by a certain phages had somehow developed the ability to make a particular amino acid that was not in their genes before. What would be the possible explanation to his new ability ?

If one of the following components is missing , bacteria can not increase the number of its plasmid copies.

In humans the disease symptoms develop during the:

The following are sexual reproduction methods in bateria except

Sulphur bacteria belongs to which group of bacteria called

A bacterium which has a group of two or more flagella inserted at one pole of the cell

In nitrogen-fixing bacteria, the nitrogenase complex is sensitive to:

Which type of bacteria has less amount of lipids in them:

When cocci form long chain of cells, the arrangement is termed as:

Which of the following bacteria have more lipids in their cell wall?

Antibiotics are produced by fungi and certain bacteria of group:

Pasteurization technique is widely used for preservation of:

Bacterial 'death rate' is equal to 'birth rate; in:

When the division of cells is in three planes, the arrangement is known as:

Most widespread problem of the antibiotics misuse is the

Bacteria and fungi are examples of

During unfavourable conditions, certain bacteria produces:

Cyanobacteria are:

Which one of the following edible products is widely pasteurized?

Which part of bacteria is resistant to antibiotics?

Which of the following bacteria is equal to the size of the hyphen?

The structure of prokaryotes which is involved in attachment:

Which of the following is a spiral-shaped bacteria?

Which of the following is used for sterilization?

Coagulation of bacteria means:

When a water sample from a hot thermal vent was tested, it was found to contain a single-celled organism having a cell wall lacking a nucleus. What is its classification most likely?

Sex pili are formed in which of the following processes?

Some bacteria have resistant organelles called as:

All of the following is true about bacilli bacteria except?

A much smaller and ancient bacteria are present in group

Which of the following structure provides greater pathogenicity to the bacteria?

Compared to gram negative bacteria, how many more membrane-bound organelles do gram positive bacteria contain?

Approximately how many species of bacteria are known to cause diseases in humans?

Which of the following structure primarily helps in attachment of bacteria on various surfaces?

Which of the following would not be found in an E. Coli sample?

Bacteria are capable of sharing genetic materials through the surroundings that can be advantageous in certain environments. This type of gene transmission is an example of which of the following?

Chromatin body in prokaryotes can also be termed as

Those bacteria which are fully dependent upon their host for nutrition are called?

The main feature of prokaryotic cell is

In bacterial categories the bacteria smaller in number are which of the following?

The process of recombination in prokaryotes takes place in which of the following ways?

The filamentous appendages called pilli are present only on?

The existance of microbes was confirmed by:

Which of the following would not be found in a prokaryotic cell?

The Prokaryotic Life is characterized by:

All of the following are characteristics of prokaryotic cell except for?

The flagella originates from which part of the cell?

Which of the following characteristics make plasmid DNA useful for researchers?

Which of the following bacteria are thick rigid and spiral?

Methanopyrus kandleri is an organism which lives in a hydrogen-carbon dioxide environment, and was first discovered in a hydrothermal vent where temperatures reached 230°F. What sort of organism is this?

The mode of reproduction for cyanobacteria is which of the following?

E.coli is an example of which type of bacteria?

Which of following is not considered as basic shape of a bacterium?

In prokaryotic cells, ribosomes are _.

In what category of bacteria does Neisseria most likely fall?

Porphyromonas gingivalis is a gram-negative bacterium found in the oral cavity that is negatively affected by the presence of oxygen. What term best describes this bacteria?

Chemical substances used on living tissues that inhibit the growth of microorganisms are called

The cell wall of a bacterial cell is more permeable in

The several distinct arrangments of cocci is based on their

Which of the following scientists developed the vaccine for anthrax?

Prokaryotes that can utilize oxygen if available, but do not require it, are called?

Which of the following structure is not present in all the bacteria?

The most common waste material produced by bacteria is?

Which of the following contains genes for drug and disease resistance in bacteria?

Pilli hollow appendages in bacteria function in?

Louis Pasteur discovered a vaccine against which disease?

Eukaryotes can't share which of the following structures with prokaryotes?

A bacterium with a tuft of flagella at both poles is called:

Which of the following is the most responsible factor for bacterial cell motility?

Eukaryotes can share which of the following structures with prokaryotes?

The gram-positive bacteria appear which colour under gram staining?

A giant micro organism, which was discovered in the intestine of brown surgeonfish (Acanthurus nigrofuscus), is:

Unlike eukaryotes, prokaryotes have no membrane-bound organelles. How, then, are prokaryotes able to generate energy?

What allows a bacteria to stain positively with gram stain?

The nitrifying bacteria are an example of which of the following?

Some bacteria ranging occasionally a size of 500 µm in length are which of the following?

In prokaryotes, the hair-like outgrowths which attach to the surface of other bacterial cells are _.

Spirochete is an example of which type of bacteria?

Which of the following is found in bacterial cells, but not in mature red blood cells?

Which of the following is true regarding the bacteria?

The division of cocci in three planes results in formation of a:

Louis Pasteur made many discoveries in field of:

What is the structure in prokaryotic cells that often holds antibiotic resistance genes?

What is true for pili and flagella-like structures of bacteria?

Which of the following will not survive in the presence of oxygen?

Streptobacillus is basically a

Microbiologists place bacteria in the following major catogories:

Which of the following is basic function of bacterial slime and capsule?

How much smaller are viruses than bacteria?

Flagella are basically composed of a:

Robert Koch discovered bacteria that causes:

The first bacteria ever to be isolated is?

Which of these processes is the means by which a bacterium can directly uptake and incorporate foreign DNA from the environment into its genome?

Example of bacteria requiring low concentration of oxygen is?

Which of these is a characteristic of prokaryotic cells?

Which of the following is a method of asexual reproduction?

Coccobacillus has a shape similar to which of the following?

What is the strengthening material of the prokaryotic cell wall?

A bacteria without flagella is called:

E. coli is

Bacteria plays an important role in:

Tooth discoloration in children is caused by which antibiotic?

Cyanobacteria help in nitrogen fixation because they have:

Which type of bacteria causes gonorrhoea?

Which part of bacteria is most delicate and damage to it can kill the bacteria?

Cyanobacteria resemble photosynthetic eukaryotes because they have:

Pili are mainly found on certain species of:

The nucleoid is found only in certain species of:

Bacteria that live in intestine and produce vitamin K belong to?

Bacteria that can only survive in the presence of oxygen?

Cell wall is only absent in the following group of bacteria

A Dutch scientist firstly observed very small creatures in:

The sex pili is formed in which of the following processes?

A type of bacterial cell that is completely surrounded by flagella is called:

Which of the following is not a sterilization method for the control of bacteria?

For respiratory metabolism, a bacterial cell membrane contains:

Which of the following bacteria possesses a spherical shape?

In cocci, three plane division results in the formation of sarcina which is a?

If lipopolysaccharides did not appear in the wall of bacteria on staining then it will be known as _.

Which of the following statements about the systemic effect of bacterial cells is true?

Which of the following is true of both bacterial conjugation and meiosis?

The presence of peptidoglycan in gram-positive bacteria is:

Purple non-sulphur bacteria is an example of which of the following?

Who discovered the bacteria causing tuberculosis and also developed various techniques of media preparation and maintenance of pure culture?

Which of the following is true bacteria?

The function of a cell wall in prokaryotes is:

In a bacterial cell, plasma membrane with all things present within it is called:

Who coined the term Animalcule for microorganisms like Bacteria and Protozoa?

A bacterial cell envelope of mollicutes does not include?

A_ is an organism that makes ATP by aerobic respiration if oxygen is present, but is capable of switching to fermentation if oxygen is absent.

Vibrio cholera is an example of _ type of bacteria.

The shape of Cocci bacteria is:

Apparently which bacteria is more resistant to antibiotics?

The cell membrane of a bacterial cell often invaginates to produce membranous structures referred to as:

The DNA of the bacterium is present in a distinct region called:

In many bacteria, the cell wall is enclosed within a slime capsule made up of:

Rod-shaped bacteria are known as:

The causing agent of the tuberculosis that grows very well in poor living conditions and malnutrition is:

In which phase of bacterial growth, does division at an exponential rate occur?

Cysts are not resistant to _ but spores are:

Genetic recombination in bacteria can occur through:

What are labelled phases A, B, and C in the below given sigmoidal growth curve?

Which of the following is not a component of extracellular matrix in bacteria?

Spirochaete bacterium Treponema Pallidum causes _.

Which one of the following sets includes the bacterial diseases?

Bacteria having a tuft of flagella at one end are called:

Tuberculosis is caused by?

Which of the following is true about the structure of a typical bacterium?

Which of the following bacteria are able to release oxygen into the environment?

In which of the following growth phases, the number of bacteria increases the most rapidly?

Bacterial pilli help in:

The first simplest oxygen producing organism:

Gram-negative bacteria are stained pink by the use of:

Which of the following bacteria are without a cell wall?

Germ theory was presented by:

All of the following are examples of substances found in bacteria or archaea except:

Which of the following organelles are present in all the bacteria?

In which of the following phases of bacterial growth, is the death rate more rapid than the multiplication rate?

Select a method which causes the oxidation of chemical constituent of a bacterial cell:

Which of the following would not be observed in a bacterial cell?

It is suspected that this cell is prokaryotic. The presence of which of these cell structures would confirm that the cell is prokaryotic?

The following are viral diseases except:

Viruses are called non-cellular infectious entities because:

Examples of reverse transcribing diploid single-stranded RNA viruses are:

A Russian scientist discovered that certain diseases could be transmitted by an agent that could pass through a very fine filter, which is called:

Which of the following kingdoms, the eukaryotic multicellular autotrophs are classified?

Viruses can be classified on the basis of:

Poliomyelitis mostly occurs in:

In binomial nomenclature, the first name refers to the:

Symptoms of Hepatitis are:

The conversion of lysogenic cycle to lytic cycle is called:

Viruses can not:

Where are the enzymes required for the replication of HIV found?

The genetic code is bound by a lipid membrane in:

Which of the following is not true about viruses?

Which one of the following sexually transmitted disease attack on T4 Lymphocytes?

Who purified filterable agents for the first time?

The side of sheath attached to head region in bacteriophage is termed as

During which stage of bacteriophage replication, lysozyme is involved?

In the life cycle of a bacteriophage, the lysozymes are required in which of the following steps of the infection process?

The causative organism of measles is:

The complete, mature & infectious particle of virus is known as:

Example of viruses having a polyhedral capsid that is with 252 capsomeres is:

Phage genome incorporated with host DNA is called:

Bacteriophages escape from host cells by the activity of:

Which of the following is an example of a sub-viral particle that infects plants?

Which virus kills cancer cells and aids immunity?

Proteins that cause disease in humans and animals are called:

Which of the following is a DNA virus?

Polio virus is an example of?

Which are called naked viruses?

A virion is designated as?

Which of the following is transmitted through infected blood and syringes?

All viruses are _.

Which of the following is true about amoeba?

Which of the following pairs of diseases is caused by a virus?

The word hepatitis means inflammation of the:

Human immunodeficiency virus (HIV) particles surround with a coat known as the viral envelope or membrane made up of:

In 1935 W.M. Stanley prepared an extract of:

Which one of the following is not a characteristic of viruses?

The enzymes integrase, protease, and reverse transcriptase are found in which virus?

How many tail fibrils are attached to the end plate of a bacteriophage?

What does the term bacteriophage refer to?

Hepatitis is caused by:

Virus is a latin word meaning:

In AIDS, "D" stands for:

Rabies is caused by:

Which of the following is a viral sexually transmitted disease?

In how many stages is the HIV infection process divided?

HIV belongs to which group of viruses?

What are capsomeres composed of?

Which of the following viruses is classified as an ssDNA virus?

The protein coat surrounding the genome of virus is called:

Viruses are not classified based on:

The genome of the Human Immunodeficiency Virus (HIV) is made up of:

Which of the following is a rod shape virus?

The complete, mature, and infectious virus particle is known as:

HIV belongs to a special class of virus known as: