Plant Kingdom Chapter-Wise Test 15

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which phase of the life cycle in bryophytes is photosynthetically active and independent?

Sporophyte
Zygote
Protonema
Gametophyte
4

The gametophyte is the dominant, photosynthetically active, and independent phase in bryophytes.

Which pteridophyte is heterosporous and contributes to the evolution of seed habit?

Lycopodium
Selaginella
Pteris
Adiantum
2

Selaginella is a heterosporous pteridophyte that produces both microspores and megaspores, a key step toward seed evolution.

Which bryophyte provides peat, used as a fuel and packing material?

Marchantia
Funaria
Sphagnum
Riccia
3

Sphagnum, a moss, produces peat, which is used as fuel and for packing due to its water retention properties.

What is the primary storage product in Phaeophyceae?

Starch
Floridean starch
Laminarin
Glycogen
3

The primary storage product in Phaeophyceae (brown algae) is laminarin, a polysaccharide.

Which structure in gymnosperms is functionally equivalent to the ovary of angiosperms?

Ovule
Megasporangium
Megasporophyll
Cone
3

The megasporophyll in gymnosperms bears ovules, similar to how an ovary bears ovules in angiosperms.

Which structure helps Selaginella survive during unfavorable conditions?

Gemmae
Rhizoids
Strobilus
Ligule
4

In Selaginella, the ligule, a small outgrowth on the leaf base, plays a role in retaining moisture, helping the plant survive dry conditions.

Which structure in pteridophytes gives rise to the gametophyte?

Sporophyte
Spore
Zygote
Prothallus
2

In pteridophytes, the spore germinates to form the gametophyte (prothallus).

In gymnosperms, which structure carries the male gametes to the female gametophyte?

Pollen tube
Ovule
Strobilus
Microsporangium
1

The pollen tube transports male gametes to the female gametophyte in gymnosperms.

Which of the following statements about algae is correct?

Algae lack chlorophyll and depend on other organisms for food.
Vegetative reproduction in algae occurs by fragmentation.
All algae are unicellular organisms.
Algae reproduce only by oogamous sexual reproduction.
2

Vegetative reproduction in algae occurs by fragmentation, where each fragment develops into a thallus.

Which of the following statements about bryophytes is correct?

Bryophytes have a sporophyte that is free-living and photosynthetic.
The gametophyte in bryophytes may have root-like, leaf-like, or stem-like structures.
Bryophytes lack a gametophyte phase in their life cycle.
The antherozoids in bryophytes are non-motile.
2

The gametophyte in bryophytes is thallus-like and may possess root-like, leaf-like, or stem-like structures.

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