Bryophytes - liverworts and mosses — practice questions

Question 1 · difficulty L1 · recall

Which generation is dominant in bryophytes?

• A. Gametophyte
• B. Sporophyte
• C. Embryo
• D. Zygote

Question 2 · difficulty L2 · understanding

In bryophytes, the gemmae help in which one of the following?

• A. Nutrient absorption
• B. Gaseous exchange
• C. Sexual reproduction
• D. Asexual reproduction

Question 3 · difficulty L2 · understanding

The correct sequence of events in the life cycle of bryophytes is A. Fusion of antherozoid with egg. B. Attachment of gametophyte to substratum. C. Reduction division to produce haploid spores. D. Formation of sporophyte. E. Release of antherozoids into water. Choose the correct answer from the options given below :

• A. B, E, A, D, C
• B. D, E, A, B, C
• C. D, E, A, C, B
• D. B, E, A, C, D

Question 4 · difficulty L2 · understanding

Why are bryophytes often called the amphibians of the plant kingdom?

• A. They live on land but require water for sexual reproduction
• B. They spend half their life submerged and half on land
• C. They possess gills during one stage
• D. They alternate between aquatic and terrestrial sporophytes

Question 5 · difficulty L3 · understanding

Which of the following statements is true ?

• A. All pteridophytes exhibit haplo-diplontic pattern.
• B. Seed bearing plants follow haplontic pattern
• C. Most algal genera are diplontic
• D. Most bryophytes do not have haplo-diplontic life cycle.

Question 6 · difficulty L3 · understanding

Given below are two statements : One labelled as Assertion A and the other labelled as Reason R: Assertion A : The first stage of gametophyte in the life cycle of moss is protonema stage. Reason R : Protonema develops directly from spores produced in capsule. In the light of the above statements, choose the most appropriate answer from options given below:

• A. Both A and R are correct but R is NOT the correct explanation of A
• B. A is correct but R is not correct
• C. A is not correct but R is correct
• D. Both A and R are correct and R is the correct explanation of A

Question 7 · difficulty L3 · understanding

Gemmae are present in

• A. Some Liverworts
• B. Mosses
• C. Pteridophytes
• D. Some Gymnosperms

Question 8 · difficulty L3 · application

A small land plant has a leafy gametophyte, produces flagellated male gametes and bears a sporophyte that remains attached to the gametophyte. Which group is the best fit?

• A. Bryophytes
• B. Gymnosperms
• C. Angiosperms
• D. Brown algae