Tag: economic importance of bacteria and fungi

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Multiple choice biology biodiversity and classification pathogen and their mode of transmission economic importance of bacteria and fungi five kingdoms of living organisms

An organism without membrane-bound organelles belongs to

  1. Monera

  2. Protista

  3. Fungi

  4. Plantae

  5. Animalia
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Kingdom protists, Fungi, Plantae, and Animalia belong to domain eukarya and include only eukaryotic organisms. Kingdom monera includes unicellular prokaryotic organisms that lack a well-defined nucleus and other membrane-bound organelles.Thus, the correct answer is option A.

Multiple choice biology living world and classification of microbes pathogen and their mode of transmission economic importance of bacteria and fungi five kingdoms of living organisms

George Bentham and J.D. Hooker divided dicots into

  1. 3 divisions

  2. 3 sub-divisions

  3. 2 sub-kingdoms

  4. 3 sub classes
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Bentham and Hooker divided the Angiospermae into two classes: Dicotyledons and Monocotyledons and in between this they have placed Gymnosperms. Dicotyledons is again divided into three subclasses. They are Polypetalae,  Gamopetale and Monochlamydeae. These sub classes are again divided into series. Series is again divided into order or cohort and order into family. So, the correct answer is '3  sub classes'.
Multiple choice biology living world and classification of microbes pathogen and their mode of transmission economic importance of bacteria and fungi five kingdoms of living organisms

Find the correct set of the given kingdoms proposed by whittaker which perform decomposition

  1. Monera, Protista and Plantae

  2. Fungi, Monera and Protista

  3. Protista, Plantae and Animalia

  4. Plantae, Monera and Fungi
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Decomposition is primarily performed by fungi, bacteria (found in Monera), and some protists. While the question asks for a set, these three groups contain the primary decomposers in ecosystems.

Multiple choice biology living world and classification of microbes pathogen and their mode of transmission economic importance of bacteria and fungi five kingdoms of living organisms


Cells of many protistans, plants, and fungi, but not animals, commonly have

  1. cell wall

  2. ribosomes

  3. plasma membrane

  4. mitochondria
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

(A) The cell wall is a structural layer around types of the cell outside the cell membrane which provides the cell with structural support and protection found in algae, fungi, plants, bacteria and archaea.

(B) Ribosomes are minute particles with associated proteins and RNA to synthesise proteins and it can be found floating in the cytoplasm or attached to the endoplasmic reticulum.
(C) Plasma membrane surrounds the cell wall, which is composed of a phospholipid bilayer arranged back to back and covered in cholesterol and protein molecule.
(D) Mitochondria are rod-shaped organelles, considered the power generators of the cell which converts nutrients and oxygen into ATP. They are not present in bacteria.
Hence, the correct answer is 'cell wall'

Multiple choice biology living world and classification of microbes pathogen and their mode of transmission economic importance of bacteria and fungi five kingdoms of living organisms

Artificial systems of classification were based on

  1. Vegetative characters

  2. Androecium structure

  3. All of these

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Artificial systems of classification were based on morphological characters such as habit, habitat, colour, number and shape of leaves. They were mainly based on vegetative characters or on the androecium structure.

So, the correct answer is 'All of these'.

Multiple choice biology living world and classification of microbes pathogen and their mode of transmission economic importance of bacteria and fungi five kingdoms of living organisms

In Whittaker's five kingdom system of classification, eukaryotes are distributed among

  1. two kingdoms

  2. three kingdoms

  3. four kingdoms

  4. all the five kingdoms
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

R.H. Whittaker proposed a Five Kingdom Classification. The kingdoms defined by him were named Monera, Protista, Fungi, Plantae, and Animalia. Among five kingdoms, only Monera is prokaryotic and remaining four are Eukaryotic.

So the correct option is "four kingdom".

Multiple choice biology living world and classification of microbes pathogen and their mode of transmission economic importance of bacteria and fungi five kingdoms of living organisms

The arrangement of parts in an organism in such a way that the structure can only be divided into similar halves along one plane is known as

  1. Uniplanner symmetry

  2. Radial symmetry

  3. Bilateral symmetry

  4. Unique symmetry
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The property of being divisible into symmetrical halves on either side of a unique plane.

So, the correct option is 'Bilateral symmetry'.