ESM236

A
is obtained when
microorganisms are grown
in the laboratory medium

Ammonia is converted to
nitrites during the process
of ___

In anaerobic conditions,
ntrates are reduced to
nitrous oxide through a
process of

Microorganisms in the air
can be determined by the
following methods except

Homogenization of
microorganisms involves
___ of the extract.

Energy from the sun is
captured by the

is used for growing colonies
of bacteria

The movement of chemical
elements through the
biological and geographical
components of the
biosphere is known as
cycle

The mean daily
precipitation overland is
about

The hyphae of fungi is
bounded by a cell wall
made up of chitin and

The environment,
organisms, biotic and
abiotic factors are
components of the

The environment,
organisms, biotic and
abiotic factors are
components of the

The
mycelium usually develops
from the germination of
basidiospores

The
sulphur bacteria oxidizes
hydrogen sulphide to
sulphur which is stored in
bacterial cells as granules

Lipase is produced by
which of the following
fungi?

A type of yeast used in
preparing bread is

The hyphae of fungi is
bounded by a cell wall
made up of chitin and ___

Which of the following is is
a limiting factor for growth
of many organisms?

Wines are produced from
grapes or other fruits with

A continous flow of nitrogen
in the ecosystem is
maintained through

Temporary inhabitants of an
environment are known as

The physical location of an
organism is known as ___.

is the process by which the
cell protoplasm is covered
by a thin membrane which
is is pushed out of a cell to
form a bus

__ determines the type
and population of microbes
in waterbodies.

Food leftover in the kitchen
for 3 days in the presence
of air and water will reveal
spores of ___

The organism
partakes in the production
of citric acid

Lakes that receive small
amount of nutrients are
termed

Clostridium tetani is a
pathogen which causes
in man

The advantage of agar
medium over gelatin as a
solidifying agent is that

Citric acid is produces by
___.

Rhizobium radiciola and
Bacillus radiciola live
in the root nodules of
leguminous plants

Microorganisms are useful
in all but one of the
following

Citric acid is produces by
___.

The organisms within an
ecosystem live in

Which of these bacterial
population is not found in
salt water?

The body of a fungus is
called ___.

All these are fungi that
occur in freshwater except

The deep water in a lake
beyond the depth of
effective light penetration is
present in the

One of the following options
is not a long-term method
of storing virus tissues.

The body of a fungus is
called

The deep water in a lake
beyond the depth of
effective light penetration is
present in the

Which of these processes
is not involved in the
nitrogen cycle?

Atromentin is the pigment
produced by the fungus

In cell culture, some tissues
deteriorate as they multiply;
this is called
effect

In anaerobic conditions,
ntrates are reduced to
nitrous oxide through a
process of ___.

Biogeochemical cycles
have the following features
except

The enzyme------is
produced by Mucor
species

The most common
organisms found in air are
___.

Which of these is not a
freshwater habitat?

Food leftover in the kitchen
for 3 days in the presence
of air and water will reveal
spores of