Tag: botany

Questions Related to botany

System Naturae was written by 

  1. Linnaeus

  2. Charles Darwin

  3. Aristotle

  4. Wallace


Correct Option: A
Explanation:
  • System Naturae, is the book that contains various species of animals, was written by Swedish Naturalist, Linnaeus, who is known as Father of taxonomy
  • Charles Darwin was an English Naturalist who wrote the book 'On the origin of species' and famously known as Father of evolution
  • Aristotle was a Greek philosopher and popularly known as Father of Zoology
  • Alfred Russell Wallace was a British Naturalist who wrote the book ' The Malay Archipelago' and famed in developing the theory of Natural selection
  • So the correct option is 'Linnaeus'.

A person who studies the origin, evolution and variations in plants and also about the classification is referred to as 

  1. Taxonomist

  2. Zoologist

  3. Agriculturist

  4. Botanist


Correct Option: A
Explanation:
  • A person who studies the origin, evolution and variations in plants and also about the classification is referred as a taxonomist
  • A person who studies about the characteristics, habits and habitats of animals is referred to be as a zoologist
  • A person who studies about cultivation of crops, and their techniques is referred as an agriculturist
  • A person who studies in detail about plants is called as botanist
  • So, the correct option is 'Taxonomist'.

Natural system of plant classification was given by

  1. Aristotle

  2. Linnaeus

  3. Bentham and Hooker

  4. Robert Hooke


Correct Option: C
Explanation:
Natural system of classification was proposed by Bentham and Hooker. The classification is based on a number of similar and different characters that are visible. This system of classification was introduced for seed bearing plants. It was explained in the book Genera Plantarum published in three volumes based on the work of Bentham and Hooker.
Thus the correct answer is option C. 

Phanerogamae include _______ and ______.

  1. Gymnosperms and Pteridophytes

  2. Bryophytes and algae

  3. Bryophytes and angiosperms

  4. Angiosperms and gymnosperms


Correct Option: D
Explanation:

Phanerogamae are the sub-kingdom of kingdom Plantae. They include seed bearing and flowering plants. They are further grouped into angiosperms and gymnosperms 

Animals cannot be classified using phylogenetic clues by taxonomists based on

  1. Body symmetry 

  2. Motility

  3. Pattern of embryonic development

  4. Complexity of tissue organization

  5. None of the above


Correct Option: B
Explanation:

Phylogenetic classification mainly depends on similarities and differences in their physical or genetic characteristics. The evolutionary relationship defined by the phylogenetic depends on the body symmetry, the pattern of embryonic development, the complexity of tissue organisation. Motility is a basic characteristic which is not prominent for a particular class rather it is common to all. It do not change with evolution.

So, the correct answer is option B.

Natural system of classification is based on

  1. Morphology

  2. Phylogeny

  3. Morphology and Affinities

  4. Ontogeny


Correct Option: C
Explanation:

  • Michael Adanson was the first scientist to reject all the artificial systems and support the natural systems of classification.
  • Natural system of classification is that in which all natural characteristics of plants both vegetative and reproductive characters are taken into consideration. It is purely natural as the knowledge of phyllogenicity was not detected 
  • Natural system of classification is a biological classification based upon morphological and anatomical relationships and affinities 
So the correct is 'Morphology and affinities'

Founder of taxonomy is

  1. Aristotle

  2. John Ray

  3. Haeckel

  4. Linnaeus


Correct Option: A
Explanation:

Taxonomy is the study of science concerned with classification according to their natural relationships. Carl Linnaeus is regarded as the father of taxonomy as he developed a system for categorization of organisms and binomial nomenclature for naming organisms. But Taxonomy's first father was the philosopher Aristotle, he first introduced the two key concepts of taxonomy: classification of organisms by type and binomial definition. Therefore founder of taxonomy is Aristotle. Hence option A is correct.

Branch connected with nomenclature, identification and classification is

  1. Ecology

  2. Taxonomy

  3. Morphology

  4. Physiology


Correct Option: B
Explanation:

Taxonomy is a branch of biological science involved with classifying organisms based on characteristics they share in common. Using morphological, behavioural, genetic and biochemical observations, taxonomists identify, describe and arrange species into a hierarchical system of groups.

Match items in Column I with those in Column II

Column I                                              Column II
(A) Peritrichous flagellation                 (J) Ginkgo
(B) Living fossil                                  (k) Macrocystes
(C) Rhizophore                                 (L) Escherichia col!
(D) Smallest flowering plant             (M) Se/ag!nella
(E) Largest perennial alga                  (N) Wolffia
Select the correct answer from the following.

  1. A - L; B - J; C - M; D - N; E - K

  2. A - K; B - J; C - L; D - M; E - N

  3. A - N; B - L; C - K; D - N; E - J

  4. A - J; B - K; C - N; D - L; E - K


Correct Option: A
Explanation:

Peritrichous flagellation means containing flagella projecting in all directions.

Gingko is a living fossil. Newly found specimens that grew more than a hundred million years ago. It is remarkably similar to present-day plants.

Selaginella possesses a rhizophore which is a prop like structure that originates at a point of branching.

The flower of Wolffia is famous as the smallest flower in the world. It has one stamen and one pistil.

Macrocystis, kelp is the largest of all algae. The stage of the life cycle commonly can be seen, is the sporophyte, which is perennial and individuals persist for many years.

Therefore the correct option is A

Hence option A is correct.

The measuring scale of taxonomy is

  1. OTU

  2. Carbon dating

  3. Karyotyping

  4. All of the above


Correct Option: D
Explanation:

  • Taxonomy can be analyzed on a measuring scale based on OTU (Operational taxonomic unit), Carbon dating and Karyotyping.
  • An operational taxonomic unit (OTU) is an operational definition used to classify groups of closely related individuals.
  • Carbon dating is used to determine age of age old fossils.
  • Karyotyping is arranging and pairing of different chromosomes of an organism. They can be compared to study inter-relationship and evolutionary connection between organisms in a taxon. 
So, the correct option is 'All of the above'.