AP BIOLOGY

PLANTS

BRYOPHYTES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following statements are TRUE about the plants in phylum Bryophyta?
A
They have true roots
B
They are non-vascular plants
C
Gametophyte generation is dominant
D
Sporogonium is the sporophyte generation
Explanation: 

Detailed explanation-1: -The plant body of bryophytes is more differentiated than that of algae. It is thallus-like and prostrate or erect and attached to the substratum by unicellular or multicellular rhizoids which are root-like structures. They lack true roots, stem or leaves.

Detailed explanation-2: -Bryophyta is a group of plants which do not bear fruits, seeds and vascular tissues. They are known as ‘amphibians of plant kingdom’. Their body is thalloid and green due to the presence of chloroplast. Male sexual organ is antheridium and female sexual organ is archegonium.

Detailed explanation-3: -So, the correct answer is A. (The sporophyte is dependent on gametophyte for support, shelter and nutrition)

Detailed explanation-4: -Which of the following statements is true of the bryophyte gametophyte generation? It is photosynthetically independent. An ovule can be defined as: a sporangium protected by sporophyte tissue layers and containing a single non-dispersed spore that has developed into a female gametophyte.

There is 1 question to complete.