Tag: pictorial feature of plant kingdom

Quizzes (25) Questions (439)

Questions Related to pictorial feature of plant kingdom

Multiple choice biology pictorial feature of plant kingdom pteridophytes introduction to pteridophytes cryptogams

The most primitive vascular plants are ___________.

  1. Cycas

  2. Ferns

  3. Moss

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

Most premitive vascular plants are pteridophytes.
Cycas belongs to gymnosperms. Gymnosperms have a well-differentiated plant body with vascular tissues. They produce naked seeds. Hence, option A is incorrect. 
Moss belongs to bryophytes. Bryophytes have a well-differentiated plant body with stem and leaf-like structures. But there is no specialized vascular or mechanical tissue. Therefore, option C is incorrect. 
Brown algae belong to thallophytes. Thallophytes do not have well-differentiated plant body and vascular tissues. Therefore, option D is incorrect. 
Ferns belong to pteridophytes. Pteridophytes have a well-differentiated plant body with vascular tissues. Therefore, option B is correct. 

Multiple choice biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

Strobilanthes kunthiana flowers once in

  1. $5\ years$
  2. $12\ years$
  3. $20\ years$
  4. $50\ years$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Strobilanthes kunthiana (Neelakurinji) flower once in $12\ years$, its juvenile phase is very long. The last time this plant flowered during September-October $2006$. It is found in hilly area of Kerala, Karnataka and Tamil Nadu and attracts a large number of tourists due to mass flowering.

So, the correct answer is '12 years'.

Multiple choice biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

Strobilanthes kunthiana differs from bamboo in

  1. Being monocarpic

  2. Length of juvenile phase

  3. Being polycarpic

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Bamboo can be monocarpic or polycarpic whereas Strobilanthes kunthiana is a monocarpic plant. The juvenile phase of bamboo can vary from 3-120 years and the juvenile phase of Strobilanthes kunthiana can vary from 8-16 years.

So, the correct option is 'Length of juvenile phase'. 

Multiple choice biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

Select the mismatched pair.

  1. Smallest angiosperm - Rafflesia

  2. Tallest angiosperm - Eucalyptus regnans

  3. Marine angiosperms - Zostera, Thalassia

  4. Angiosperm with smallest seed - Orchid

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

Smallest angiosperm is Wolffia microscopici, while Rafflesia arnoldii is the parasitic plant with the world's largest flower.

So the correct option is A.

Multiple choice biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

Vessels and companion cells are characteristics of

  1. Angiosperm

  2. Gymnosperm

  3. Pteridophyta

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

A xylem vessel is a characteristic feature of an angiosperm and help in transportation of water. When it comes to transportation of food, it is the phloem that transports food materials from the leaves to the other parts. Sieve tube elements, companion cells, phloem parenchyma are the different components of the phloem. The sieve tube elements are arranged longitudinally with the companion cells and the pressure gradient in them is maintained by the companion cells

So, the correct answer is 'Angiosperm'

Multiple choice biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

The smallest angiosperm is

  1. Mistletoe

  2. Rafflesia

  3. Wolfiella

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

A. Mistletoe is a common name for obligate hemiparasitic plants of order santalales. For example, Viscum species etc. It grows as tangled stem mass which can be upto 5 feet.

B. Rafflesia bears the largest flowers in the plant kingdom.
C. Wolfiella is a small aquatic angiosperm which is around 10 mm.
D. Wolffia is the smallest angiosperm which is less than 2 mm in measurement.
So, the correct answer is 'Wolffia'.