Tag: useful and harmful microbes

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Questions Related to useful and harmful microbes

Multiple choice botany living world mycorrhiza classification of fungi kingdom monera, protista and fungi useful and harmful microbes

Mycorrhiza is helpful in

  1. Synthesis of food

  2. Getting nutrients from soil

  3. Providing resistance against different regulators

  4. Increase the fertility of soil
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Mycorrhizae are primarily mutualistic associations that enhance the plant's ability to absorb water and mineral nutrients, such as phosphorus and nitrogen, from the soil.

Multiple choice botany living world mycorrhiza classification of fungi kingdom monera, protista and fungi useful and harmful microbes

A phosphate solubilising symbiotic association is :

  1. Rhizobium

  2. Mycorrhiiza

  3. Azolla

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

Roots of most terrestrial plants are colonized by symbiotic mycorrhizal fungi. These fungi are capable of mobilizing inorganic phosphates or compound phosphates present in the soil to the plant an a source of Phosphorus.

So, the correct answer is 'Mycorrhiiza'

Multiple choice botany living world mycorrhiza classification of fungi kingdom monera, protista and fungi useful and harmful microbes

VAM is

  1. Vesicular-arbuscular mycorrhiza

  2. Variable adenine mutation

  3. Variable associative mutualism

  4. Vitamins and minerals
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Fungi forms symbiotic association with roots of higher plants, known as mycorrhizae. When fungal hyphae penetrate through cortex cells of root, these are called as Endomycorrhizae. These are also called vesicular arbuscular mycorrhizae or VAM, because cortical cells swell and form vesicles or arbuscles. it has significant role in phosphorus nutrition in plants. hence, Option A is correct. 

Multiple choice botany living world mycorrhiza classification of fungi kingdom monera, protista and fungi useful and harmful microbes

Mycorrhiza is a symbiotic association between

  1. Bacteria and fungi

  2. Algae and fungi

  3. Fungi and roots of higher plants

  4. Blue green algae and roots of higher plants
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Fungi present in the roots of the plants show a symbiotic relationship with each other. 
  • It helps the roots of the plants to absorb more nutrients and water from the soil. 
  • It also helps them obtain better resistance to environmental stresses. In return, plants provide shelter and nutrition to mycorrhiza.
So, option C is the correct answer.
Multiple choice botany living world mycorrhiza classification of fungi kingdom monera, protista and fungi useful and harmful microbes

Mycorrhiza improve the soil structure by _______________.

  1. Secreting carbonic acids

  2. Releasing glycosides

  3. Absorbing heavy metals

  4. Adding amino acids
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mycorrhizal fungi contribute to soil structure by secreting organic acids, such as carbonic acid, which help weather minerals and release nutrients, while also producing glomalin that helps aggregate soil particles.

Multiple choice botany living world mycorrhiza classification of fungi kingdom monera, protista and fungi useful and harmful microbes

The fungus which grows around the root surface is called

  1. Endomycorrhizae

  2. Ectomycorrhizae

  3. Rhizomorph

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

Mycorrhiza is an association between a fungus and the root of the higher plant, for example, pinus, eucalyptus etc.

The ectomycorrhizae is a fungal association in which the fungus partner is commonly basidiomycetes. The fungus completely encloses the roots in a mantle of tissues formed of compact hyphal cells but do not penetrate inside the root cells like in endomycorrhiza
So, the correct answer is option B.

Multiple choice botany living world mycorrhiza classification of fungi kingdom monera, protista and fungi useful and harmful microbes

Roots of higher plants develop mycorrhiza for obtaining

  1. Sulphates

  2. Nitrogen

  3. Phosphates

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Mycorrhiza is a type of symbiotic relationship. It is seen when two organisms have mutually beneficial relationship with each other. In this cas, the roots of plants host fungi, which helps them obtain water, sulphur, phosphates from soil. They also help them fix nitrogen. Inturn, fungi obtain nutrition and shelter 

So, option D is the correct answer.

Multiple choice botany living world mycorrhiza classification of fungi kingdom monera, protista and fungi useful and harmful microbes

Mycorrhiza is a symbiotic association between 

  1. Algae and Fungi

  2. Algae and Roots of plants

  3. Fungi and Roots of plants

  4. Viruses and Bacteria
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Fungi present in the roots of the plants show a symbiotic relationship with each other. It helps the roots of the plants to absorb more nutrients and water from the soil. It also helps them obtain better resistance to environmental stresses. In return, plants provide shelter and nutrition to mycorrhiza.

So, option C is the correct answer.