Life Cycle of Bryophytes

Q.

Male and female gametophytes are Independent and free-living In?

1. Sphagnum

2. Pinus

3. Castor

4. Mustard

Q.

What is the life cycle of Pteridophytes?

Q.

Male and female gametophytes are independent and free-living in -

1. Sphagnum

2. Pinus

3. Castor

4. Mustard

Q. What is the dominant phase in bryophytes is it gametophyte or sporophyte

Q.

Gametophyte is a dominant phase in the life cycle of a bryophyte. Explain.

Q.

In which of the following groups, do gametophytes not have an independent free - living existence?

1. Bryophytes and angiosperms

2. Pteridophytes and angiosperms

3. Bryophytes and Pteridophytes

4. Gymnosperms and angiosperms

Q. Which of the following statement is not true for bryophytes?

1. Their spore germinates to produce gametophyte
2. They are photosynthetic
3. They undergo meiosis to produce sporophyte
4. They lack tracheids and sieve tubes

Q.

What is the difference between sporophyte and sporangium?

Q. The main body of the plants in bryophytes have

1. one set of chromosomes
2. one pair of chromosomes
3. two sets of chromosomes
4. two pairs of chromosomes

Q. The sporophyte does not include

1. capsule
2. seta
3. foot
4. rhizoids

Q. The life cycle in bryophytes is

1. haplontic
2. diplontic
3. haplo-diplontic
4. meiotic

Q.

Why are bryophytes called the amphibians of the plant kingdom?

Q. Cells of X and Y are of a bryophyte are in haploid and diploid condition. Identify X and Y.

1. X-sporophyte, Y-gametophyte
2. X- gametophyte, Y- sporophyte
3. X-gametophyte, Y-spores
4. X-sporophyte, Y-gametes

Q. Choose the option which mentions the events when mitosis happens in the life cycle of the bryophytes:

1. I - during spore formation, II - during sporophyte formation
2. I - during sporophyte formation, II - during gametophyte formation
3. I - during spore formation, II - during gamete formation
4. I - during gamete formation, II - during syngamy

Q. The main body of the plants in bryophytes have

1. one set of chromosomes
2. one pair of chromosomes
3. two sets of chromosomes
4. two pairs of chromosomes

Q.

Is a pine tree a sporophyte or gametophyte?

Q.

The dominant phase in the life cycle of Funaria is:

1. Protonema

2. Leafy gametophyte

3. Spore mother cells

4. Sporophyte

Q.

Is archegonium a sporophyte or gametophyte?

Q.

What is sporophyte and gametophyte?

Q. Intrinsic heterophylly is seen in all except:

1. Cotton
2. Coriander
3. Buttercup
4. Larkspur

Q.

How many reductional divisions are important for creat 100 seeds of wheat? Why only 25 egg participate in division?

Q. The main body of the plants in bryophytes have

1. one set of chromosomes
2. one pair of chromosomes
3. two sets of chromosomes
4. two pairs of chromosomes

Q. The main plant body of the bryophyte is

1. gametophyte and haploid
2. sporophyte and haploid
3. gametophyte and diploid
4. sporophyte and diploid

Q.

In land plants, the diploid stage progresses from which of the following stages?

1. Spores —> sporophyte.

2. Zygote —> sporophyte.

3. Gametophyte —> male and female gametes.

4. Zygote --> gametophyte.

Q. Which of the following does not represent gametophytic phase of a bryophyte?

1. Gemma
2. Seta
3. Protonema
4. Rhizoid

Q.

What is the life cycle of bryophytes?

Q. These cells of angiosperms are involved in meiosis

1. Cell involved in the formation of male gametes
2. Cells that give rise microspores
3. Cells that give rise polar nuclei
4. Cell in which diploid secondary nucleus is present

Q. Give reasons: Bryophytes are called the amphibians of plant kingdom.

Q. Male and female gametophytes are free living and independent in:

1. Pinus
2. Mustard
3. Cycas
4. Sphagnum

Q. Eucalyptus is different from Cedrus in the presence of

1. syngamy
2. triple fusion
3. seeds
4. archegonia