Tag: gymnosperms

Questions Related to gymnosperms

In a gymnosperm, the endosperm

  1. Develops without fertilization

  2. Forms after fertilization but does not require triple fusion

  3. Is diploid

  4. Is short-lived


Correct Option: A

Gymnosperms do not have

  1. Xylem vessels and sieve tubes

  2. Tracheids and sieve tubes

  3. Vessels, sieve tubes and companion cells

  4. Tracheids and companion cells


Correct Option: C

External water is not required for fertilization in

  1. Fern/Selaginella

  2. Moss/Riccia

  3. Ulothrix

  4. Gymnosperms/Maize


Correct Option: D

A plant having seeds but lacking flowers and fruits belongs to

  1. Pteridophytes

  2. Mosses

  3. Ferns

  4. Gymnosperms


Correct Option: D

Gymnosperms do not have

  1. Antheridium

  2. Ovule

  3. Archegonium

  4. Egg


Correct Option: A

Gymnosperms are characterised by

  1. Multiflagellate sperms

  2. Naked seeds

  3. Winged seeds

  4. Seeds inside fruits


Correct Option: B

Naked seeds occur in

  1. Pteris/Pteridophytes

  2. Cycas/Gymnosperms

  3. Funaria/Bryophytes

  4. Maize/Angiosperms


Correct Option: B

In gymnosperms, the ovules are

  1. Naked

  2. Covered

  3. With two coats

  4. All the above


Correct Option: A

Gymnosperm seeds are naked due to lack of

  1. Pericarp

  2. Perianth

  3. Nucellus

  4. Integuments


Correct Option: A

Number of species belonging to gymnosperms is

  1. $900$

  2. $1000$

  3. $700$

  4. $800$


Correct Option: B