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

Amphivasal vascular bundle is that in which

  1. phloem is surrounded by xylem

  2. xylem is surrounded by phloem

  3. phloem is on both the sides of xylem

  4. phloem and xylem lie in different radii

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 Concentric vascular bundle is of two types one of them being amphivasal vascular bundle in which phloem is surrounded by xylem.

Multiple choice

Stele in the stem typically consists of

  1. vascular tissue and cortex

  2. vascular tissue and ground tisue

  3. vascular tissue, ground tissue and pericycle

  4. ground tissue, pericycle and cortex
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Stele is the central portion of a stem consisting of vascular tissue, ground tissue and the outermost pericycle.

Multiple choice

Lenticels originate in the

  1. cortex of the stem

  2. periderm of the stem

  3. pericycle of the stem

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

 Lenticels are formed on periderm which is the outer protective layer of woody stems.

Multiple choice

Exine and intine are the

  1. outer and inner layers of seed coat

  2. outer and inner layers of leaf epidermis

  3. outer and inner layers of pollen grain wall

  4. outer and inner layers of a fruit
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

 Pollen grain wall is made of outer exine and inner intine layers. 

Multiple choice

A pollen grain is composed of

  1. a vegetative cell only

  2. a generative cell only

  3. both vegetative and generative cells

  4. layers of sterile cells only
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

 A pollen grain has a large vegetative cell but a small generative cell.

Multiple choice

Flowers are considered to be the best gift which suits any or every occasion. When choosing flowers, people consider the occasion as well as their relationship with the person to whom they are presenting the flowers. Commonly recognised flower associations include: Daffodil - truth, forgiveness, honesty Lily - unions, partnerships, long lasting relationships Rose - love, intelligence, passion Sunflower - good luck, wealth, ambition Tulip - opportunity, advancement, new beginnings Use the above information to answer the following question: For the inauguration of a new shop, the flowers chosen would most likely be

  1. lily and tulip

  2. daffodil and sunflower

  3. tulip and sunflower

  4. rose and lily
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Tulip and sunflower both give qualities or factors that would be desirable on an inauguration of a new shop.

Multiple choice

What type of chloroplast is present in spirogyra?

  1. Ribbon like

  2. Cup shaped

  3. Flask like

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

Chloroplasts are ribbon-shaped in Spirogyra.In spring Spirogyra grows under water, but when there is enough sunlight and warmth they produce large amounts of oxygen, adhering as bubbles between the tangled filaments.

Multiple choice

The thallus of Volvox is called

  1. trichome

  2. coenobium

  3. coenocyte

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

The thallus of Volvox is hollow ball like flagellate colony. It is called as coenobium.