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 botany pictorial feature of plant kingdom classification of bryophytes types of bryophytes bryophyta

Sporophyte of Riccia contains

  1. Spores, elaters and nutritive cells

  2. Spores and nutritive cells

  3. Elaters and spores

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

The sporophyte of Riccia is the simplest because as it contains only capsule, both the foot and seta are absent. It consists a peripheral layer of cells constituting the capsule wall and a central mass of spore mother cell which produces spores.

Multiple choice botany pictorial feature of plant kingdom classification of bryophytes types of bryophytes bryophyta

Which one is peat moss? 

  1. Sphagnum

  2. Funaria

  3. Polytrichum

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

Sphagnum is the scientific name of peat moss. It is also called as bog moss. It has high pH. Hence, it is used for plants growing in acidic condition, such as blueberries. It helps in moisture absorption from soil.

Thus, the correct answer is option A.

Multiple choice botany pictorial feature of plant kingdom classification of bryophytes types of bryophytes bryophyta

Sphaerocarpos belongs to 

  1. Bryophyta

  2. Pteridophyta

  3. Gymnosperms

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

Sphaerocarpos is a genus of liverwort. Division bryophyta is divided into three classes namely, Hepaticopsida (liverwort), Anthoceropsida and Bryopsida. Liverwort is divided into four orders namely, Marchantiales (example: Riccia), Sphaerocarpales (example: Sphaerocarpos), Jungermanniales (example: Pellia) and Calobryales (example: Calobryum).

Thus, the correct answer is option A.

Multiple choice botany pictorial feature of plant kingdom classification of bryophytes types of bryophytes bryophyta

Archegoniophore occurs in

  1. Chara

  2. Funaria

  3. Adiantum

  4. Marchantia
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Archegoniophore is a stalk of a prothallium on which archegonia grows. Marchantia is a genus of liverworts. The thallus of Marchantia is dioecious in nature. It produces either female archegoniophores or male antheridiophores. 

Thus, the correct answer is option D.

Multiple choice botany pictorial feature of plant kingdom classification of bryophytes types of bryophytes bryophyta

Areolated thallus is characteristic of

  1. Funaria hygrometrica

  2. Polytrichium commune

  3. Marchantia

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

The upper part of the thallus shows well-developed air chambers bounded on all sides by plates of cells, below by the storage tissue and roofed in by an epidermal layer of cells; each chamber is open to the air by a simple pore.

Multiple choice biology plant kingdom classification of bryophytes types of bryophytes bryophyta

In moss, sporophyte is formed on

  1. Antheridia

  2. Archegonium

  3. Prothallus

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

In mosses, fertilization occurs within the archegonium, where the egg cell is located. The resulting zygote develops directly into the sporophyte while attached to and dependent on the gametophyte at the archegonium.

Multiple choice biology plant kingdom classification of bryophytes types of bryophytes bryophyta

The female sex organ in Riccia and Funaria is _____________.

  1. antheridium

  2. paraphysis

  3. archegonium

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

The sex organs in bryophytes (Riccia, Funaria), are multicellular and jacketed. The jacket of the sterile cell around the sperm and egg is an adaptation to a life on land. The male reproductive organs are antheridia and female reproductive organs are archegonia.

So the correct option is B.

Multiple choice biology plant kingdom classification of bryophytes types of bryophytes bryophyta

A sterile jacket around gametangia is found among _______________.

  1. bryophytes

  2. lichens

  3. algae

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

The sex organs in bryophytes {Riccia, Funaria), are multicellular and jacketed. The jacket of the sterile cell around the sperm and egg is an adaptation to a life on land. The male reproductive organs are antheridia and female reproductive organs are archegonia.

So the correct option is A.

Multiple choice

The cell division is restricted to ___________.

  1. secretory cells

  2. permanent cells

  3. all of the above

  4. meristemastics cells
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In plants, active cell division is restricted to meristematic tissues, which are found in growing regions like root and shoot tips. Permanent cells have matured and differentiated, losing their ability to divide under normal conditions.

Multiple choice

Which cell has a larger vacuole?

  1. Blood cell

  2. Animal Cell

  3. Brain Cell

  4. Plant cell
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Plant cells contain a single, very large central vacuole that stores water and maintains turgor pressure to keep the plant upright. In contrast, animal cells have much smaller, temporary vacuoles used for transport and storage.

Multiple choice

2 kingdom classification was given by

  1. Aristotle

  2. Linnaeus

  3. Whittaker

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

Carolus Linnaeus proposed the two-kingdom classification system, which divided all living organisms into Kingdom Plantae and Kingdom Animalia.

Multiple choice

The main criteria for 5 kingdom classification were

  1. Cell structure and Reproduction

  2. Body organization and Nutrition

  3. Phylogenetic relationships

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

R.H. Whittaker's five-kingdom classification system utilized cell structure, body organization, mode of nutrition, reproduction, and phylogenetic relationships as the primary criteria.