Tag: botany

Quizzes (264) Questions (5276)

Questions Related to botany

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

First step in taxonomy is?

  1. Description of the organism

  2. Identification of the organism

  3. Nomenclature of the organism

  4. Classification of the organism
Reveal answer Fill a bubble to check yourself
B Correct answer
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.

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

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

  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
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Darwin's concept of the struggle for existence is driven by the fact that populations produce more offspring than the environment can support, leading to competition for limited resources.

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

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

  1. Species

  2. Genus

  3. Order

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

Multiple choice 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

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

  1. Chlorella, Spirulina

  2. Gelidium, Gracilaria

  3. Porphyra, Spirogyra

  4. Laminaria, Spirogyra
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

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

  1. 15

  2. 25

  3. 40

  4. 50
Reveal answer Fill a bubble to check yourself
B Correct answer
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.

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

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

  1. Animal manure

  2. Straw

  3. Molasses

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

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

Single cell protein can be obtained from 

  1. bacteria

  2. algae

  3. fungi

  4. all of these
Reveal answer Fill a bubble to check yourself
D Correct answer
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' .

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

Single cell production is enabled through

  1. Batch operation systems

  2. Continuous operation systems

  3. Discontinuous operation system

  4. Unique operation system
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Single cell protein (SCP) production is most efficiently achieved through continuous operation systems, which allow for a steady state of growth and harvest.

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

Single cell protein can be obtained from 

  1. Bacteria

  2. Algae

  3. Fungi

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