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 life in water aquatic plant adaptations pollination through water aquatic adaptation

Which of the following is incorrect?

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

  2. John Ray developed key for the identification of animals.

  3. The category division is used instead of phylum in case of plants which comprises of fewer similar features.

  4. The set of methods used in classification based on evolutionary relationship is called phenetics.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The statement- the set of methods used in classification based on evolutionary relationship is called phenetics is wrong.

Phenetics is an attempt to classify organisms based an overall similarity usually in morphology or other observable traits regardless of their phylogeny of evolutionary relation.

Multiple choice biology multicellular structure: tissue defense mechanism in plants epidermal tissue system kinds of plant tissue permanent tissues and their types

Protosteles are found in

  1. Bryophyta

  2. Gymnosperms

  3. Pteridophyta

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

Prostele is a primitive and simple type of stele. It consists of a solid mass of xylem surrounded by phloem, pericycle, and endodermis. It is permanently present in adult stems of many living pteridophytes, e.g. Lygodium, Lycopodium, Hymemophyllus, and Selaginella. It is present in vascular plants. Protostele is of four types as haplostele, actinostele, plectostele and mixed protostele. Thus, option C is correct.

Multiple choice evs animal- the base of our life diversity in the living world environmental conservation and biodiversity biodiversity on earth and in india

Which of the following shows the maximum diversity?

  1. Algae

  2. Fungi

  3. Pteridophytes

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

Among the groups listed, fungi exhibit a very high degree of morphological and metabolic diversity, often cited as having more species diversity than the other listed plant-like groups.

Multiple choice botany seeds - structure and germination what is a seed? seeds seed

Consider the following statements.
a. Orchids are monocotyledonous plants
b. Orchids have only ornamental value
c. All orchids are autotrophs
d. Some orchids are epiphytes
Which of these statements are correct?

  1. $1$ and $2$
  2. $2$ and $3$
  3. $1$ and $4$
  4. $3$ and $4$
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

Myrmecophily is an association between higher plant and.

  1. Bacteria

  2. Fungi

  3. Blue-green algae

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

Myrmecophily refers to the symbiotic association between ants and other organisms, including plants, where the plants provide shelter or food in exchange for protection.

Multiple choice botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

Which of the following pairs of plant categories and habitat types are correctly matched?
a. Sociophytes- Shady
b. Heliophytes - Sunny
c. Psammophytes - Sandy
Select the correct answer using the codes given.

  1. $1, 2$ and $3$
  2. $1$ and $2$
  3. $1$ and $3$
  4. $2$ and $3$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sociophytes (shade-loving), Heliophytes (sun-loving), and Psammophytes (sand-loving) are all correctly matched with their respective habitat preferences.

Multiple choice botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

The correct sequence of plants in hydrosphere is :

  1. $Oak \rightarrow Lantana \rightarrow Volvox \rightarrow Hydrilla \rightarrow Pistia \rightarrow Scirpus$
  2. $Oak \rightarrow Lantana \rightarrow Scirpus \rightarrow Pistia \rightarrow Hydrilla \rightarrow Volvox $
  3. $Volvox \rightarrow Hydrilla \rightarrow Pistia \rightarrow Scirpus \rightarrow Lantana \rightarrow Oak$
  4. $Pistia \rightarrow Volvox \rightarrow Scirpus \rightarrow Hydrilla \rightarrow Oak \rightarrow Lantana$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The hydrosere succession typically moves from submerged plants (Volvox, Hydrilla) to floating plants (Pistia), then to reed-swamp stages (Scirpus), and finally to terrestrial stages (Lantana, Oak).

Multiple choice botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

Plants which grow in shade are called

  1. Sciophytes

  2. Heliophytes

  3. Oxylophytes

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

Sciophytes are plants that are adapted to grow in low-light or shaded conditions. Heliophytes prefer full sun, while Oxylophytes grow in acidic soil.

Multiple choice botany ecological adaptations, succession and ecological services extreme adaptations adapting to a habit adaptive features aquatic plant adaptations pollination through water

"Patther phul" is _______________.

  1. Lichen

  2. Xerophytic plant

  3. Living stones

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

"Patther phul" or stone flower or rock moss is a xerophytic plant or xerophytic shrub occurring wild on rocky ground( not much water present) As it is a plant which needs very little water it is called a xerophyte and occurs in the region of Gujarat 

So, the correct answer is 'Xerophytic plant'.

Multiple choice botany ecological adaptations, succession and ecological services extreme adaptations adapting to a habit adaptive features aquatic plant adaptations pollination through water

What is wrong about xerophytes?

  1. Sunken stomata

  2. Small spiny leaves

  3. Thick cuticle

  4. Larger number of stomata
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Xerophytes minimize water loss by reducing the number of stomata or having them sunken. A larger number of stomata would increase transpiration, which is detrimental to a plant in a dry habitat.

Multiple choice botany ecological adaptations, succession and ecological services extreme adaptations adapting to a habit adaptive features aquatic plant adaptations pollination through water

A non-succulent xerophyte with thick leathery leaves having white sticky waxy coating is

  1. Nerium

  2. Calotropis

  3. Bryophyllum

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

Calotropis is a non-succulent xerophyte that features thick, leathery leaves covered in a white, waxy, or hairy coating to reduce water loss and reflect sunlight.

Multiple choice botany ecological adaptations, succession and ecological services extreme adaptations adapting to a habit adaptive features aquatic plant adaptations pollination through water

Which ones develop characteristics of xerophytes?

  1. Hydrophytes

  2. Sciophytes

  3. Heliophytes

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

Halophytes grow in saline environments where water uptake is difficult due to high salt concentrations, leading to physiological drought. Thus, they often develop xerophytic adaptations.