Tag: transmission of diseases

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Multiple choice botany biodiversity and classification common diseases in humans epidemics transmission of diseases

Choose the correct answers from the alternatives given.
In defining fungi, which of the following is not a correct contrasting statement?

  1. Animals are heterotrophic by ingestion while fungi are heterotrophic by absorption

  2. Plants have cell walls of cellulose; fungi have cell walls of chitin

  3. Energy reserve of fungi.is starch while the energy reserve of animals is glycogen

  4. Fungi lack flagella at all stages of their life while most protists have a stage that possesses flagella
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Reserve food material in all the fungi is glycogen and oil but not starch. 

So, the correct option is 'Energy reserve of fungi.is starch while the energy reserve of animals is glycogen'.

Multiple choice botany biodiversity and classification common diseases in humans epidemics transmission of diseases

Who gave the parasitic nature of fungus in plant?

  1. Pasteur

  2. Anton De Bary

  3. Robert Koch

  4. J.F. Kuhn
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Bacterial nature of Anthrax disease in animals was studied by Robert Koch. He used gelatin as solidifying agent in culture media, which is replaced by Agar-Agar. Koch postulates are applicable to bacteria and fungi as pathogen.

Multiple choice botany classification of plants common diseases in humans epidemics transmission of diseases

The study of Fungi is called

  1. Phycology

  2. Plant pathology

  3. Systematics

  4. Mycology
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fungi are a subsection of eukaryotes. Fungi are heterotrophs, which means they consume other organic products. Types of fungi include both molds and yeasts. Mycology is the branch of biology concerned with the study of fungi, including their genetic and biochemical properties, their taxonomy and their use to humans as a source for tinder, traditional medicine, food, and entheogens, as well as their dangers, such as toxicity or infection.

So, the correct answer is 'Mycology'

Multiple choice botany classification of plants common diseases in humans epidemics transmission of diseases

Heterothallism was discovered by

  1. Blakeslee

  2. Mehta

  3. Pasteur

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

The term heterothallism was first used by Blakeslee in 1904 for the condition of sexual reproduction which he found in certain species of Mucorales, such that 'conjugation is possible only through the interaction of two differing thalli.

Therefore A is the correct option. 

Multiple choice botany classification of plants common diseases in humans epidemics transmission of diseases

Identify the scientists who worked extensively on chlorophyllous and non chlorophyllous thallophytes respectively :
(a) Iyengar
(b) Swaminathan
(c) Mehta
(d) Maheshwari

  1. a, d

  2. b, c

  3. c, d

  4. a, c
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Iyengar and mehta are scientists who worked extensively on chlorophyllous and non chlorophyllous thallophytes.

So the correct option is D.

Multiple choice botany biodiversity and classification common diseases in humans epidemics transmission of diseases

The body of fungus is known as________

  1. hypha

  2. mycelium

  3. rhizoid

  4. fruiting body
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A.Hypha – a filament of mycelium is called hypha.

B.mycelium – a network of filamentous structure appear in the body of fungus is called mycelium.

C.Rhizoid -  root like hyphae appear in some fungi are called rhizoids.

D.Fruiting body – specialised structure formed after fertilizaiton in ascomyetis and basidiomycetis fungi is called fruiting body. It is made up of secondary mycelium.

So, the correct option is ‘mycelium’.

Multiple choice botany biodiversity and classification common diseases in humans epidemics transmission of diseases

The fungi are

  1. Autotrophic

  2. Holotrophic

  3. Chemotrophic

  4. Heterotrophic
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fungi are multicellular, eukaryotic, heterotrophs, that acquire their nutrients by absorption. Heterotrophic nutrition is a type of nutrition which is obtained by digested organic compounds. They feed on dead or decaying organic matter.

Therefore, the correct answer is option D.

Multiple choice botany biodiversity and classification common diseases in humans epidemics transmission of diseases

Mycology (Mycetology) is a branch which deals with the study of

  1. Viruses

  2. Algae

  3. Bacteria

  4. Fungi
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Mycology means 'mykes' meaning mushroom and 'logos' meaning discourse.Mycology had another name mycetology and involves the study of fungi.
Humans have been using fungi for thousand of years but it was in the 19th century that fungi was studied for the invasion into plant and animal tissues.   

Multiple choice botany biodiversity and classification common diseases in humans epidemics transmission of diseases

Which of the following is famous mycologist of India?

  1. P. Maheshwari

  2. M. Iyengar

  3. K. Shauna

  4. Sadasivan
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Prof. T. S. Sadasivan has an outstanding work done in the fields of Plant Pathology and Mycology, this laboratory was elevated as a Centre for Advanced Studies by the University Grants Commission in 1964. T.S. Sadasivan work on physiology of infection by Fusarium. Other famous Indian mycologists are KC. Mehta, B.B. Mundkar and C.V. Subraman