Liverwort

Q. Which of the following statement (s) is/are correct about gemmae?

(i) They are specialised structures by which asexual reproduction take place in liverworts.

(ii) They are green, multicellular and asexual buds.

(iii) They develop in small receptacles called gemma cups.

(iv) They detach from the parent body and germinate to form new individuals.

1. (i) and (ii)
2. (ii) and (iii)
3. (i), (ii) and (iii)
4. (i), (ii), (iii) and (iv)

Q.

What is meant by prothallus?

Q.

Name one entity that exhibits elater mechanism for spore dispersal.

Q.

Archegoniophore is present in

1. Chara

2. Adiantum

3. Funaria

4. Marchantia

Q.

Liverworts are the members of

1. Algae

2. Gymnosperms

3. Bryophytes

4. Pteridophytes

Q. Rearrange the following events starting from the formation of the zygote in Marchantia :
I. Formation of sporophyte
II. Spore germination
III. Formation of gametophyte
IV. Gamete formation
V. Reductional division
VI. Formation of spores
VII. Syngamy

1. I→II→III→IV→V→VI→VII
2. VII→I→V→VI→II→III→IV
3. I→V→VI→II→III→IV→VII
4. V→IV→VII→II→I→III→VI

Q. Which among the following bryophytes lack stomata?

1. Marchantia
2. Notothylas
3. Funaria
4. Megaceros

Q.

Identify the labeled parts in the given diagram of Marchantia.

1. A - Rhizophore, B - Gemma cup, C - Rhizoids

2. A - Gemma cup, B - Archegoniophere, C - Rhizoids

3. A - Archegoniophere, B - Gemma cup, C - Roots

4. A - Archegoniophere, B - Gemma cup, C - Rhizoids