Biology

Plant Biology and Classification

1,796 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 plant taxonomy classification of kingdom plantae features of plant and animal kingdom plant classification

Chara belongs to 

  1. Gymnosperm

  2. Thallophyta

  3. Bryophyta

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

Answer is B. Thallophyta

Biological classification of Chara :- 

Division :- Thallophyta 

Sub division :- Algae 

Class :- Charophyceae

Order :- Charales 

Family :- Characeae 

Genus :- Chara 

==>>Occurrence of Chara :-

This is a fresh water form, which generally grows submerged in water and remain attached to the bottom with the help of rhizoids. Some species like chara battica may be found in Saline water.

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

Identify the bryophyte(s) from the following.

  1. Riccia

  2. Moss

  3. Cycas

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Answer is D-A and B both
Riccia is a genus of liverworts in the order Marchantiales. These plants are small . The sporophyte of Riccia is the simplest amongst bryophytes.
mosses are non-vascular plants in the land plant division Bryophyta.
Multiple choice biology plant taxonomy classification of kingdom plantae features of plant and animal kingdom plant classification

Kingdom plantae shows two phases of life, gametophytic and

  1. Autotrophic

  2. Sporophytic

  3. Saprophytic

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

Bryophytes are the plants in which the life cycle has two phases gametophytic and sporophytic, alternating to each other. This phenomenon is called alternation of generation. Gametophytic phase is haploid, autotrophic, gametes(male and female) formative and responsible for the sexual reproduction. Sporophytic phase is the subsidiary phase which is diploid, heterotrophic and spore formative and responsible for the asexual reproduction. For example, Riccia, Funaria.

So, the correct answer is option B.

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

Choose the correct answers from the alternatives given.
Plants are believed to have evolved from the

  1. euglenophytes, because they have chlorophyll a and b

  2. dinoflagellates, because they have similar storage products and cellulosic cell walls

  3. chlorophytes, because of similarities in chloroplasts and accessory pigments

  4. rhodophytes, because they have carotenoids and use floridean starch as a storage product
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Chlorophyta is the green algae that contain the pigment chlorophyll A and chlorophyll b in the well-defined chloroplast. Plants are considered to have evolved from Chlorophyta because plants are green in color and they have chlorophyll A and chlorophyll b pigment just like the Chlorophyta family.

There is well-defined chloroplast which stores this pigment in plants.
So, the correct option is 'chlorophytes, because of similarities in chloroplasts and accessory pigments'

Multiple choice zoology diversity in living world botanical gardens, zoological parks and zoological museums museums and zoos tools of taxonomy

Which one of the following is not correct statement?

  1. Herbarium is the collection of dried, pressed and preserved plant specimens.

  2. Botanical gardens have collection of living plants for reference.

  3. A museum has collection of photographs of plants and animals.

  4. Key is a taxonomic aid for identification of specimens.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • The herbarium is a collection of preserved plant specimens, which may be a whole plant or plant parts, usually be in a dried form mounted on a sheet.
  • Botanical gardens are the establishment, where plants are grown for the display to the public and often for scientific study.
  • The museum is a building in which objects of historical, scientific, artistic or cultural interest are stored and exhibited.
  • A dichotomous key is a list of paired statements that guide to the identification of a species.
  • So, the correct answer is option C.
Multiple choice zoology diversity in living world botanical gardens, zoological parks and zoological museums museums and zoos tools of taxonomy

Which is not correct ?

  1. Key is a taxonomic aid for identification of specimens.

  2. Herbarium houses dried, pressed and preserved plant specimens.

  3. Botanical gardens have collection of living plants for reference.

  4. A museum has collection of photographs of plants for reference.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • Museum has collections of preserved plant and animal specimens for study and reference. Specimens are preserved in the containers or jars in preservative solutions. Plant and animal specimens may also be preserved as dry specimens. 
  • So, the correct option is 'A museum has collection of photographs of plants for reference'.
Multiple choice zoology diversity in living world botanical gardens, zoological parks and zoological museums museums and zoos tools of taxonomy

Which one is a taxonomic aid?

  1. Manual

  2. Monograph

  3. Museum

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

The most important taxonomical aids are herbaria, botanical gardens, keys, museums, and zoological parks.

1. Manual: These provide information for identification of names of species occurring in an area.
2. Monograph: These are handbooks which provide the available information of any one taxon.
3. Museum: It is the institution where artistic and educational plants or animals are preserved, stored and exhibited to the public.
So, the correct option is 'All of the above'.

Multiple choice biology organization of life comparison of prokaryotic vs eukaryotic cells prokaryotic cell and eukaryotic cell types of cell

The division of the plant kingdom into prokaryota and eukaryota is based on the characters of 

  1. Nucleus only

  2. Chromosomes only

  3. Cell organelles only

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

The primary distinction between a prokaryotic cell and a eukaryotic cell is based on the nucleus. Hence, a cell having a 'pro' or primitive nucleus is called as prokaryotic, where the word 'karyon' means nucleus. Similarly, the cells with the advanced or well-developed nucleus are called as eukaryotic, where the word 'karyon' means nucleus. A prokaryotic cell also lacks membrane-bound cell organelles like chloroplast, mitochondria, Golgi bodies. etc., which are a characteristic of eukaryotic cell.

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

Select the correct option for biological names.

  1. They are binomial

  2. They are descriptive

  3. They are universal

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

The scientific names or biological names consist of two components- a generic name and a specific epithet. The name with two components are called binomial.
The scientific names are universal, being used all over the world irrespective of the language of the people. They are often descriptive, indicating some important characteristic of the organism.

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.