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 evs roots and leaves plant adaptation and modification leaves root, stem, and leaves

Heterophylly means 

  1. Occurrence of different color of leaves in plant

  2. Occurrence of different size of roots in a plant

  3. Occurrence of more than one type of leaves

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

Plants with both submerged and floating or emerged leaves show hetrophylly or occurrence of more than one type of leaves. Eg Ranunculus, Aquatilis 

Multiple choice biology plant taxonomy life introduction to plant kingdom classification of organisms

Kingdom Plantae includes

  1. algae and bryophytes

  2. pteridophytes and gymnosperms

  3. angiosperms

  4. all of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
The Plant Kingdom incorporates Algae, Bryophytes, Pteridophytes, Gymnosperms, and Angiosperms. Bryophytes are creatures of land and water of plant kingdom. 
So, the correct option is 'all of these'.
Multiple choice biology plant taxonomy life introduction to plant kingdom classification of organisms

Algae mostly belongs to 

  1. Thallophyta

  2. Bryophyta

  3. Pteridophyta

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

Anwer is A.

Plants that do not have well-differentiated body design are Thallophyta . They are commonly called algae.
Algae are chlorophyll-bearing, simple, thalloid, autotrophic and largely aquatic (both fresh water and marine) organisms.

Multiple choice biology evolution and biodiversity life introduction to plant kingdom classification of organisms

Which of the following statement is false?

  1. Biological names are generally written in Latin and printed in italics.

  2. Both the words in biological name when handwritten are jointly underlined.

  3. In binomial system given by Linnaeus is being practised by biologists all over the world.

  4. In binomial system, first component a genus and second word is specific epithet.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Option (B) is false.

Both the words in biological name is written in italics or underlined to denote a species that is to be denoted but not jointly underlined.

Multiple choice biology biodiversity and its classifications life introduction to plant kingdom classification of organisms

Classification deals with 

  1. Identification of organisms

  2. Arranging organisms into groups

  3. Arranging organisms in herbaria and museums.

  4. Naming, identification and grouping of organisms
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Classification deals with the arrangement of animals and plants in taxonomic groups according to their observed similarities and differences (including at least kingdom and phylum in animals, division in plants, and class, order, family, genus, and species).
Multiple choice biology biodiversity and its classifications life introduction to plant kingdom classification of organisms

.......... are called as moss animals.

  1. Loricifera

  2. Ectoprocta

  3. Acanthocephala

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

The Bryozoa, also known as Polyzoa, Ectoprocta or commonly as moss animals, are a phylum of aquatic invertebrate animals. They are filter feeders that sieve food particles out of the water using a retractable lophophore a "crown" of tentacles lined with cilia. Most marine species live in tropical waters, but a few occur in oceanic trenches, and others are found in polar waters. 

Therefore, the correct answer is option B.

Multiple choice biology biodiversity and classification life introduction to plant kingdom classification of organisms

Which one of the following books was contributed by Linnaeus?

  1. Systema Naturae

  2. Historia Plantarum

  3. Historia Naturalise

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

The word systematics is derived from the Latin word 'systema' which means systematic arrangement of organisms. Linnaeus used Systema Naturae as the title of his publication. The scope of systematics was later enlarged to include identification, nomenclature, and classification. Systematics takes into account evolutionary relationships between Organisms.

So the correct option is "Systema Naturae".".

Multiple choice biology biodiversity and classification life introduction to plant kingdom classification of organisms

Plant classification as proposed by Carolus Linnaeus was artificial because it was based on

  1. only a few morphological characters

  2. all the possible characters

  3. anatomical characters which are adaptive in nature

  4. physiological and morphological characters.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Artificial systems of classification were based upon morphological characters {such as habit, habitat, colour, number and shape of leaves, etc.) for grouping of organisms. They were mainly based on vegetative characters or on the androecium structure. These systems separated the closely related species since they were based only on a few characteristics.

Multiple choice biology biodiversity and classification life introduction to plant kingdom classification of organisms

How many species of plants did Carolus Linnaeus list in the 1$^{st}$ edition of his book Species Plantarum (1753)?

  1. 10,900

  2. 7,900

  3. 6,000

  4. 15,700
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Species Plantarum, (1753), two-volume work by the Swedish botanist Carolus Linnaeus, in which he established a precise and workable two-word, or binomial, system for naming plants. This system forms the basis of modern plant taxonomy. In this master work Linnaeus described 6,000 species of plants and assigned each plant a genus name and a species name, the genus representing a group of plants, the species designating specific individuals within a given genus. Species Plantarum was the first work that consistently applied a referable system of nomenclature; it was a vast improvement over the cumbersome polynomial descriptions generally used before its publication. The first edition of Species Plantarum (with the 1754 edition of an earlier work, Genera Plantarum) has been internationally accepted as the starting point in the nomenclature of flowering plants and ferns.

So the correct option is '6,000'.

Multiple choice biology classification and variation life introduction to plant kingdom classification of organisms

Which of the following statement is not true regarding keys?

  1. Key is a taxonomical aid and is used for the identification of plants and animals based on similarities and differences.

  2. The keys are based on a pair of contrasting characters generally called couplet.

  3. Each statement in a key is called lead.

  4. Separate taxonomic keys are not required for each taxonomic category such as family, genus and species for their identification purpose.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Taxonomic keys are specific to each taxonomic category. A separate key is required for each rank (e.g., family, genus, species) because the diagnostic characters vary significantly between levels.

Multiple choice botany leaf - external morphology venation arrangement of leaves morphology of leaf

The row of smaller leaves lying in the mid-ventral line of members of Acrogenous Jungermanniales are termed as _____________.

  1. Amphigastria

  2. Amphithecium

  3. Amphigenous

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

In Jungermanniales, the leaves are arranged in three rows, two lateral and one ventral. The smaller ventral leaves are called amphigastria or underleaves.

Multiple choice biology plant taxonomy classification of kingdom plantae features of plant and animal kingdom plant classification

Classification of kingdom plantae includes

  1. Bryophytes, pteridophytes, angiosperms, gymnosperms

  2. Angiosperms, gymnosperms

  3. Bryophytes, pteridophytes

  4. Gymnosperms, pteridophytes
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Kingdom Plantae is also called as kingdom Metaphyta. The kingdom Plantae includes all types of eukaryotic, multicellular, photosynthetic plants found in this biosphere.

It includes bryophytes, pteridophytes, angiosperms, and gymnosperms.
This kingdom includes all types of plants like herbs, shrubs, trees, creepers, climbers, aquatic plants, desert plants, mountain plants, flowering, and nonflowering plants, etc.