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

Which of the following groups of kingdom Plantae includes plants with multicellular sex organs but no seeds?

  1. Thallophyta

  2. Bryophyta

  3. Gymnospermae

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

Bryophytes (mosses, liverworts, hornworts) are the only plant group with multicellular sex organs (antheridia and archegonia) that do NOT produce seeds. Thallophyta are simpler algae-like plants, while Gymnospermae and Angiospermae both produce seeds.

Multiple choice

Any plant which has an identical genetic structure to its parent stock is called�

  1. Biotic factor

  2. Biota

  3. Biotype

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

A biotype is a plant or organism with identical genetic structure to its parent stock. This term specifically denotes genetic clones or organisms that are genetically identical. Biotic factor refers to living components affecting ecosystems, biota is the total collection of living organisms, and 'biotic' is a general adjective referring to life.

Multiple choice

What are cryptic species?

  1. True species which do not interbreed but are difficult to separate on basis of morphological characters alone.

  2. Species erected on basis of morphological characters only.

  3. Species having definite binomial name.

  4. Species with two or more subspecies.

  5. Species which are found as fossils only.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

They are cryptic or sibling species.

Multiple choice

Tribe comes between __________.

  1. sub family and genus

  2. class and family

  3. division and order

  4. family and species

  5. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Tribe is an intermediate category between sub family and genus.

Multiple choice

Which of the following is a Tassel fern?

  1. Huperzia Borneo Square

  2. Pteris longifolia

  3. Adiantum formosum

  4. Nephrolepis exaltata

  5. Doodia media
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Huperzia Borneo Square is a kind of tassel fern. Tassel Ferns are ancient fern allies that date back to the Carboniferous period.

Multiple choice

A fossil pteriodophyte is

  1. Sequoia

  2. Tmesipteris

  3. Rhynia

  4. Psilotum

  5. Nephrolepis
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A fossil pteriodophyte is Rhynia.

Multiple choice

Fern plants are called

  1. hygrophytes

  2. hydrophytes

  3. xerophytes

  4. mesophytes

  5. none of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Fern plants are hygrophytes.

Multiple choice

Which of the following matches is false?

  1. Plants growing on rocks: Lithophytes

  2. Plants growing on waste land: Chersophytes

  3. Plants growing in saline soils: Psammophytes

  4. Plants growing in acidic soils: Oxylophytes

  5. Plants growing in cold soils: Psychrophytes
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Plants growing in saline soils are called halophytes. Plants growing on sand and gravel are called psammophytes.