Liverwort

Q. The sporophyte in liverwort is differentiated into

1. rhizoids, thallus and capsule
2. foot, seta and capsule
3. thallus, seta and capsule
4. foot, thallus and seta

Q. Assertion: The innermost layer of microsporangium is called tapetum.
Reason: Tapetum performs the function of protection and help in dehiscence of anther to release pollen grains.

1. Both assertion and reason are incorrect.
2. Both assertion and reason are correct.
3. Assertion is correct but reason is incorrect.
4. Assertion is correct but reason does not explain it.

Q. The green, multicellular, asexual buds are

1. foliose
2. rhizoids
3. protonema
4. gemmae cups

Q. Characteristic ‘Gemma cups’ are present in:

1. Anthoceros
2. Riccia
3. Marchantia
4. Pellia

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.

Identify the labeled parts in the given diagram of Marchantia.

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

2. A - Archegoniophere B - Gemma cup C - Roots

3. A - Archegoniophere B - Gemma cup C - Rhizoids

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

Q. Choose the monoecious plant from the following.

1. Chara
2. Marchantia
3. Date palm
4. Papaya

Q. Among the following which is not characteristic feature of bryophyta?

1. Motile sperms
2. Photosynthetically independent sporophyte
3. Presence of archegonium
4. Water essential for fertilization

Q. Riccia gametophyte is:

1. Dioecious
2. Monoecious
3. Heterothallic
4. Either monoecious or dioecious

Q. Meiosis in Dryopteris takes place during –

1. Spore formation
2. Gametic formation
3. Spore germination
4. Zygote formation

Q. Spore of Funaria on germination gives:

1. Protonema
2. Vegetative body
3. Antheridia
4. Archegonia

Q. The given figure represents vexillary aestivation. Select the suitable labels for P, Q and R.

1. P	Q	R
   Standard	Wing	Keel

2. P	Q	R
   Standard	Keel	Wing

3. P	Q	R
   Wing	Keel	Carina

4. P	Q	R
   Standard	Keel	Carina

Q.

Liverworts are the members of

1. Gymnosperms

2. Bryophytes

3. Pteridophytes

4. Algae

Q.

Which plant has Archegonia but lack seed formation?

Q. Riccia gametophyte is:

1. Dioecious
2. Monoecious
3. Heterothallic
4. Either monoecious or dioecious

Q.

Where does the protonema stage in mosses develop from?

Q. Identify the dioecious plant among these.

1. Riccia
2. Funaria
3. Maize
4. Marchantia

Q. How trichomes even be secretory meaning

Q. Which one of the following is the correct matching of a vitamin, its nature and its deficiency disease?

1. Vitamin-A–Fat soluble–Night blindness
   
2. Vitamin-K–Fat soluble–Beri-Beri
   
3. Vitamin-A–Fat soluble–Beri-Beri
4. Vitamin-K–Water soluble–Pellagra

Q.

Liverworts are the members of

1. Algae

2. Gymnosperms

3. Bryophytes

4. Pteridophytes

Q.

What is a gametophyte and what is a sporophyte?

Q.

When and where does reduction division take place in the life cycle of a liverwort, a moss, a fern, a gymnosperm and an angiosperm?

Q. Distinguish between :
(a) Gametophyte and sporophyte
(b) Megasporophyll and microsporophyll
(c) Antheridia and archegonia
(d) Liverworts and mosses

Q. Pteridophytes differ from mosses/bryophytes in possessing:

1. Independent gametophyte
2. Well developed vascular system
3. Archegonia
4. Flagellate spermatozoids

Q.

What Is Forked Branching?

Q. Which one of the following is a fat-soluble vitamin and its related deficiency disease?

1. Ascorbic acid - Scurvy
2. Retinal - Xerophthalmia
3. Cobalamin - Beri-beri
4. Calciferol - Pellagra

Q.

What is inside a Nematocyst?

Q. Spore dissemination in some liverworts is aided by

1. Elaters
2. Indusium
3. Calyptra
4. Peristome teeth

Q. Read the following statements about terror of bengal and select the correct ones

1. a and c
2. a and b
3. b and c
4. a, b and c

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)