Biology

Plant Biology and Classification

1,473 Questions

Plant Biology and Classification deals with the taxonomy, evolution, and morphological features of the plant kingdom. This collection offers practice questions on plant groups, taxonomic hierarchies, and specific plant characteristics. The questions are tailored for students preparing for biology competitive exams.

Plant taxonomyPteridophytesAngiospermsPlant morphologyAlgae and bryophytesClassification systems

Plant Biology and Classification Questions

Multiple choice biology biology : an introduction introduction to organization of life signs of life what is living?

Which of the following statements regarding the universal rules of biological nomenclature is incorrect?

  1. Biological names are either derived from Latin language or are Latinised

  2. The first word in a biological name represents the genus while the second component denotes the species

  3. Both the words in a biological name, when handwritten, are separately underlined, or printed in italics to indicate their Latin origin

  4. The specific epithet starts with a capital letter while the generic epithet starts with a small letter. It can be illustrated with the example of mangifera Indica
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The generic epithet starts with a capital letter while the specific epithet starts with a small letter. It can be illustrated with the example of Mangifera indica.

Multiple choice biology living world and classification of microbes pathogen and their mode of transmission economic importance of bacteria and fungi five kingdoms of living organisms

George Bentham and J.D. Hooker divided dicots into

  1. 3 divisions

  2. 3 sub-divisions

  3. 2 sub-kingdoms

  4. 3 sub classes
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Bentham and Hooker divided the Angiospermae into two classes: Dicotyledons and Monocotyledons and in between this they have placed Gymnosperms. Dicotyledons is again divided into three subclasses. They are Polypetalae,  Gamopetale and Monochlamydeae. These sub classes are again divided into series. Series is again divided into order or cohort and order into family. So, the correct answer is '3  sub classes'.
Multiple choice biology living world and classification of microbes pathogen and their mode of transmission economic importance of bacteria and fungi five kingdoms of living organisms

Find the correct set of the given kingdoms proposed by whittaker which perform decomposition

  1. Monera, Protista and Plantae

  2. Fungi, Monera and Protista

  3. Protista, Plantae and Animalia

  4. Plantae, Monera and Fungi
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Decomposition is primarily performed by fungi, bacteria (found in Monera), and some protists. While the question asks for a set, these three groups contain the primary decomposers in ecosystems.

Multiple choice biology living world and classification of microbes pathogen and their mode of transmission economic importance of bacteria and fungi five kingdoms of living organisms

Artificial systems of classification were based on

  1. Vegetative characters

  2. Androecium structure

  3. All of these

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Artificial systems of classification were based on morphological characters such as habit, habitat, colour, number and shape of leaves. They were mainly based on vegetative characters or on the androecium structure.

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

Multiple choice biology living world and classification of microbes pathogen and their mode of transmission economic importance of bacteria and fungi five kingdoms of living organisms

In Whittaker's five kingdom system of classification, eukaryotes are distributed among

  1. two kingdoms

  2. three kingdoms

  3. four kingdoms

  4. all the five kingdoms
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

R.H. Whittaker proposed a Five Kingdom Classification. The kingdoms defined by him were named Monera, Protista, Fungi, Plantae, and Animalia. Among five kingdoms, only Monera is prokaryotic and remaining four are Eukaryotic.

So the correct option is "four kingdom".

Multiple choice biology cell - the structural and functional unit of life number and shape of cells unicellular and multicellular organisms diversity and classification in animals

The members of algae found in littoral zone is

  1. Volvox

  2. Spirogyra

  3. Ectocarpus

  4. Ulothrix.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Ectocarpus is widely distributed massive alga which grows on rocks or larger seaweeds in littoral and supra-littoral zone.
Thus, the correct answer is option C.
Multiple choice biology cell - the structural and functional unit of life number and shape of cells unicellular and multicellular organisms diversity and classification in animals

Which one of the following pairs is not correctly matched?

  1. Spirogyra- Conjugation

  2. Volvox - Oogamy

  3. Oedogonium - Cap cell

  4. Ulothrix - Heterocyst
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ulothrix reproduces via zoospores or isogamy/anisogamy, not heterocysts. Heterocysts are specialized cells found in certain cyanobacteria like Nostoc or Anabaena for nitrogen fixation.

Multiple choice botany types and parts of plants plant life cycle alternation of generations life span

Independent alternation of generations is present in

  1. Angiosperms

  2. Gymnosperms

  3. Pteridophytes

  4. Bryophytes
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Pteridophytes are independent of alteration in generation. They can live “independent of the parent plant”. While gametophytes cannot live independently and are very small. The pteridophytes have a vascular plant.

Multiple choice botany types and parts of plants plant life cycle alternation of generations life span

The plants that live for more than two years are called :

  1. Annuals

  2. Perennials

  3. Biennials

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

A.Annuals – Plants with a life span of one year or one season.

B.Perennials – Plants with a life span of more than two years.

C.Biennials – Plants with a life span of two years

D.Triennials – Plants with a life span of three years.

So, the correct option is ‘Perennials’