Tag: gymnosperms

Questions Related to gymnosperms

Multiple choice biology classification of plants phanerogams gymnosperms angiosperms

Mature gymnosperms lack

  1. Seeds

  2. Leaves

  3. Flowers

  4. Vascular tissue

  5. Woody growth

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

Gymnosperms are seed-bearing plants but lack the specialized features  of flowering plants. The gymnosperms do not bear flowers hence the seeds are naked i.e these are not enclosed within fruits.

Multiple choice biology classification of plants phanerogams gymnosperms angiosperms

Which of the following pairs produces spores and seeds respectively?

  1. Monocot and dicot

  2. Algae and fungi

  3. Mosses and ferns

  4. Ferns and gymnosperms

  5. Gymnosperms and angiosperms

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

Ferns reproduce via spores, while gymnosperms are seed-bearing plants that do not produce flowers.

Multiple choice biology classification of plants phanerogams gymnosperms angiosperms

Which of the following is not a characteristic of gymnosperms?

  1. Seed plants

  2. Predominantly diploid

  3. to flower

  4. Conifers

  5. Naked seed plants

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

Gymnosperms are 'naked seed' plants and do not produce flowers; flowers are a defining characteristic of angiosperms.

Multiple choice biology classification of plants phanerogams gymnosperms angiosperms

Which group of plants bear flowers?

  1. Pteridophytes

  2. Angiosperms

  3. Gymnosperms

  4. Bryophytes

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

Angiosperms or flowering plants include all those plants in which seeds are enclosed in the fruits. An ovule is well developed in angiosperms. Thus option B is the correct answer.

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 classification of plants phanerogams gymnosperms angiosperms

Vessels are found in

  1. All pteridophyta

  2. All angiosperms

  3. Some gymnosperms

  4. Both (B) and (C)

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

Vessels are present in most of the angiosperms and also in certain lower plants like Gnetum, Marsilea and Selaginella. Tracheids are found in pteridophytes, most of the gymnosperms and a few angiosperms.
Thus, the correct answer is option D.

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'.

Multiple choice biology pictorial feature of plant kingdom phanerogams gymnosperms angiosperms

Fruit bearing plants are

  1. Gymnosperms

  2. Dicotyledons

  3. Angiosperms

  4. Spermatophytes

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

Angiosperms are fruit-bearing plants because angiosperms are vascular seed plants in which the ovule (egg) is fertilized and develops into a seed in an enclosed hollow ovary. The ovary itself is usually enclosed in a flower, which after fertilization turns into fruit.

So, the correct option is C.