Biology · Science General

Botany and Plant Science

4,989 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

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

The stalk with which the ovule remains attached to the placenta is called

  1. Micropyle

  2. Chalaza

  3. Funiculus

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

The stalk that attaches the ovule to the placental tissue in plant flowers is known as the funiculus. The hilum represents the scar where the funiculus attaches to the seed, while the micropyle and chalaza are regions of the ovule itself.

Multiple choice

Identify the CORRECT statements. P. Specialized parenchymatous cells with tannins and crystals of calcium oxalate are termed as sciereids. Q. The sieve elements of angiosperms are surrounded by companion cells and are essential component of phloem loading. R. The exudation of water by guttation occurs through trichomes. S. The bulliform cells control the unrolling and hygroscopic movement of grass leaves.

  1. P, Q

  2. P, R

  3. Q, S

  4. P, S
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement Q is correct because sieve elements in angiosperms depend heavily on adjacent companion cells for metabolic support and phloem loading. Statement S is correct because bulliform cells are specialized epidermal cells that lose turgor and cause the unrolling or folding of grass leaves during water stress. Statements P and R are wrong because sclerids are dead mechanical cells, and guttation occurs via hydathodes, not trichomes.

Multiple choice botany taxonomic aids taxonomy and systematic botany indian botanical gardens and herbarium importance of herbarium botanical gardens in india

ICBN was first revised in

  1. 1961

  2. 1964

  3. 1975

  4. 1753
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

ICBN, "International Code of Botanical Nomenclature”, is the collection of rules of scientific nomenclature of plants and was first proposed by Sprague, Hitchcock, Green (1930) but was accepted in 1961. During 12$^{th}$ International congress, Leningrade 1975, ICBN was revised. The revised form was republished in 1978. Thus, ICBN was first revised in 1975. 

Therefore, the correct answer is option C.

Multiple choice plant kingdom biology

Zoospores produced in Ectocarpus are?

  1. Motile

  2. Thick walled

  3. Pyriform
  4. Both $(1)$ and $(3)$
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice plant kingdom biology

The microsporangia of anther develop and become?

  1. Zoospores

  2. Pollen sacs

  3. Generative cell

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

During the development of an anther, the microsporangia progressively mature and transform into pollen sacs containing pollen grains. The other choices represent spores, cell types, or precursor mother cells.

Multiple choice plant kingdom biology

The zygospore of Sporogyra after undergoing a rest germinates into a unicellular structure called ____________.

  1. Sporohyte plant

  2. Germ cell

  3. Germ tube

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

Spirogyra is a freshwater green alga. During its sexual cycle, the zygospore is formed which is considered as the only diploid phase in its life cycle. In favourable conditions, When zygospore burts and it is one haploid nucleus form germ tube.

The correct answer is C.

Multiple choice comma punctuation english

Cactus spines are produced from specialized structures called areoles, which are a kind of highly specialized branch.

  1. areoles;

  2. areoles -

  3. areoles

  4. NO CHANGE
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
The given sentence consists of two parts, the main clause and the non restrictive phrase that adds extra information about the noun phrase. As a general rule, a comma is used before 'which' when it introduces a non restrictive phrase. Thus, the correct answer must be Option D.
Option A - A semi colon is used between two independent clauses when the coordinating conjunction is omitted.
Option B - The en dash issued to represent a span or range of numbers, dates or time.

 
Multiple choice physics wave motion reflection of waves

Regarding open organ pipe, which of following is correct?

  1. Both ends are pressure antinodes

  2. Both ends are displacement nodes

  3. Both ends are pressure nodes

  4. Both (1)and (2)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Regarding open pipe both ends are pressure nodes.

So, option $C$ is correct.

Multiple choice

It hurts to eat pineapple because...

  1. It has a high concentration of citrus

  2. It has microscopic shards of its shell in the "meat"

  3. It has an enzyme which actively breaks down animal tissue

  4. It makes your nerves hypersensitive
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Pineapple contains bromelain, a mixture of enzymes that digest proteins. When you eat pineapple, it effectively begins to digest the tissues in your mouth, which causes the sensation of soreness.

Multiple choice

What is the national flower of India?

  1. A rose

  2. A daisy

  3. A lotus

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

The lotus flower is the national flower of India. It symbolizes purity and divinity in Indian culture.