Tag: botany

Questions Related to botany

First step in taxonomy is?

botany why classification? modern classification system traditional method of animal classification salient features of five kingdoms classification hierarchy hierarchy of classification

  1. Description of the organism

  2. Identification of the organism

  3. Nomenclature of the organism

  4. Classification of the organism

Show answer
Correct Option: B
Explanation:

First step is taxonomy is identification of the organism. Identification is the finding of correct name and place of an organism according to some approved system of classification.

Choose the correct answers from the alternatives given.
The struggle for existence is a consequence of

botany why classification? modern classification system traditional method of animal classification salient features of five kingdoms classification hierarchy hierarchy of classification

  1. each organism leaving more offspring than needed to replace itself

  2. the inevitable difficulty of coping with climatic conditions

  3. innate competitive tendencies

  4. territories and dominance hierarchies

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Correct Option: A

The basic unit upon which the systems of classification are based is?

botany why classification? modern classification system traditional method of animal classification salient features of five kingdoms classification hierarchy hierarchy of classification

  1. Species

  2. Genus

  3. Order

  4. Family

Show answer
Correct Option: A
Explanation:

According to Linnaeus' system, each species is given a unique, two-part name called a binomen. Each binomen consists of a genus and species epithet. The species is the basic unit of classification and the only 'natural' one.
Correct option is option A.

____ and ____ are unicellular algae, rich in proteins, that are used as food supplements even by space travellers. 

botany components of food balanced diet food production and microbes plant breeding for food production effect on general health diseases caused by changes in lifestyle diet, drugs and disease

  1. Chlorella, Spirulina

  2. Gelidium, Gracilaria

  3. Porphyra, Spirogyra

  4. Laminaria, Spirogyra

Show answer
Correct Option: A
Explanation:

Chlorella (Green alga), as food supplement is rich in protein and carbohydrates. It yields about 30% proteins, 15% lipids, 30% carbohydrates and 5% ash. Spirulina platensis (blue-green alga) is one of the richest sources of protein and vitamin $B _{2}$. In long range space exploration, scientist have turned to Chlorella and Spirulina to use them as portable oxygen generators and food sources.

250 g of $Methylophilus$ can be expected to produce ______ tonnes of proteins.

botany strategies for enhancement in food production balanced diet food production and microbes plant breeding for food production

  1. 15

  2. 25

  3. 40

  4. 50

Show answer
Correct Option: B
Explanation:

A 250 kg cow produces 200 g of proteins per day. In the same period, 250 g of a microorganisms like Methylophilus methylotrophus because of its high rate of biomass production and growth, can be expected to produce 25 tonnes of protein.

Which of the following can be used for cultivation of SCP?

botany strategies for enhancement in food production balanced diet food production and microbes plant breeding for food production

  1. Animal manure

  2. Straw

  3. Molasses

  4. All of these

Show answer
Correct Option: D
Explanation:

Large quantities of single cell proteins like Spirulina can be grown easily on materials like waste water from potato processing plants, straw, molasses, animal manure and even sewage.

Single cell protein can be obtained from 

botany strategies for enhancement in food production balanced diet food production and microbes plant breeding for food production

  1. bacteria

  2. algae

  3. fungi

  4. all of these

Show answer
Correct Option: D
Explanation:

Single cell protein can be obtained from cells of microorganisms such as yeast, fungi, algae and bacteria which are grown on carbon sources for synthesis. SCP is a protein supplement for animals and humans. Example ; Spirulina produces large quantity of food which are rich in protein, carbohydrates, fats, minerals and vitamins. It also reduces environmental pollution. 

So, the correct option is 'Option D' .

Single cell production is enabled through

botany strategies for enhancement in food production balanced diet food production and microbes plant breeding for food production

  1. Batch operation systems

  2. Continuous operation systems

  3. Discontinuous operation system

  4. Unique operation system

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Correct Option: B

Single cell proteins are

botany strategies for enhancement in food production balanced diet food production and microbes plant breeding for food production

  1. Microorganisms

  2. Enzymes

  3. Antibiotics

  4. Toxins

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Correct Option: A

Single cell protein can be obtained from 

botany strategies for enhancement in food production balanced diet food production and microbes plant breeding for food production

  1. Bacteria

  2. Algae

  3. Fungi

  4. All of the above

Show answer
Correct Option: D
Explanation:

Single cell protein means the protein which can be obtained by the culture of single-celled organisms and these proteins are generally used as dietary supplements. Bacteria, algae, fungus all of them are either single-celled structures or the groups have one or more forms which are single-celled. Thus, all of them form sources of single-celled protein.

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