Biology · Science General

Botany and Plant Science

5,038 Questions

Botany and plant science delve into the biological study of plant life, covering structural anatomy, physiological processes, and reproductive mechanisms. Key topics include inflorescence patterns, root modifications, and seed development, which are vital for biology sections in medical entrance exams. This collection of practice questions helps solidify understanding of complex plant functions.

Plant ReproductionPlant AnatomyRoot ModificationsInflorescence PatternsPlant Morphology

Botany and Plant Science Questions

Multiple choice

Dwarf shoots are present in

  1. cycas

  2. ferns

  3. mango

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

Pinus (pine trees) is characterized by having two types of branches: long shoots and dwarf shoots (also called spur shoots) that bear the needles.

Multiple choice

What is the national flower of India?

  1. Rose

  2. Lilly

  3. Chrysanthemum

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

The lotus (Nelumbo nucifera) is India's national flower, adopted in 1950. It symbolizes purity, beauty, and spiritual enlightenment in Indian culture, and has deep cultural and religious significance.

Multiple choice

Sporangiospores of Mucor are

  1. haploid

  2. diploid

  3. triploid

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

Haploid sporangiospores are formed in sporangium of Mucor after meiotic division in zygospore.

Multiple choice

Development of Funaria gametophyte is always initiated from

  1. antheredium

  2. protonema

  3. archegonia

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

A protonema is a thread-like chain of cells that forms the earliest stage (the haploid phase) of a bryophyte life cycle. When a moss first grows from the spore, it grows as a protonema which develops into a leafy gametophore.

Multiple choice

The endosperm in angiosperms is

  1. triploid

  2. haploid

  3. diploid

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

Endosperm is the most common nutritive tissue for the developing embryos in angiosperms. It is developed after fertilization by triple fusion i.e., by the fusion of two polar nuclei and second male gamete, therefore it is triploid. Family Orchidaceae, Podostemaceae and Trapaceae in angiosperms do not form endosperm. In gymnosperms the endosperm is formed before feritlization therefore it is haploid.

Multiple choice

A type of mounting in which the specimen usually undergoes a complex histological preparation that may involve cutting it into very thin sections with a microtome, fixing it to prevent decay, removing any water contained in it, staining specific parts of it with Canada balsam is

  1. strew mount

  2. wet mount

  3. permanent mount

  4. dry mount

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

Prepared mount or permanent mount is a mounting in which the specimen usually undergoes a complex histological preparation that may involve cutting it into very thin sections with a microtome, fixing it to prevent decay, removing any water contained in it, staining specific parts of it with Canada balsam.

Multiple choice

Leaves do not contain _______.

  1. stomata

  2. palisade cells

  3. meristematic cells

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

Meristematic cells give rise to all three fundamental mature cell types. Their major function is cell division, and so their cell cycle indeed cycles. The walls are thin, the vacuole is largely missing, the plastids are immature, etc.