Plant Kingdom Chapter-Wise Test 9

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which of the following is a distinguishing feature of gymnosperm leaves?

Parallel venation
Sunken stomata
Spiral arrangement
Broad lamina
2

Gymnosperm leaves, especially in conifers, have sunken stomata to reduce water loss and adapt to dry conditions.

Which of the following statements about Chlorophyceae is correct?

Chlorophyceae have unequal lateral flagella like Phaeophyceae.
Asexual reproduction in Chlorophyceae involves flagellated zoospores.
Chlorophyceae store food as floridean starch.
Their dominant pigments are chlorophyll a and c.
2

Asexual reproduction in Chlorophyceae occurs via flagellated zoospores produced in zoosporangia.

Which of the following statements about Chlorophyceae is incorrect?

Chlorophyceae can have colonial forms like Volvox.
Their chloroplasts contain pyrenoids with protein and starch.
Chlorophyceae reproduce sexually only by anisogamy.
The cell wall in Chlorophyceae has an inner layer of cellulose.
3

Chlorophyceae exhibit isogamous, anisogamous, or oogamous sexual reproduction, not only anisogamy.

Which component of the moss sporophyte is responsible for spore dispersal?

Seta
Capsule
Protonema
Rhizoids
2

In mosses, the capsule, part of the sporophyte, produces and releases spores for dispersal.

Which part of the ovule forms the micropyle, facilitating pollen tube entry?

Funicle
Integuments
Nucellus
Chalaza
2

The micropyle is an opening formed by the integuments of the ovule, allowing pollen tube entry for fertilization.

Which bryophyte structure is functionally equivalent to the root system in higher plants?

Protonema
Gemmae
Rhizoids
Sporophyte
3

Rhizoids in bryophytes anchor the plant to the substrate and absorb water, performing a function similar to roots.

Which of the following pteridophytes produces both microspores and megaspores?

Dryopteris
Pteris
Salvinia
Adiantum
3

Salvinia is a heterosporous pteridophyte that produces both microspores (male) and megaspores (female).

Which type of chloroplast is found in Spirogyra?

Cup-shaped
Ribbon-shaped
Spiral-shaped
Plate-like
3

Spirogyra is known for its characteristic spiral-shaped chloroplasts.

Which bryophyte genus is known for forming dense mats that help in soil conservation?

Marchantia
Riccia
Sphagnum
Funaria
4

Funaria, a moss, forms dense mats that reduce the impact of rainfall and help prevent soil erosion.

Which of the following statements about gymnosperms is correct?

Gymnosperms lack a sporophyte phase in their life cycle.
The nucellus in gymnosperms is protected by envelopes, forming an ovule.
Gymnosperms produce seeds enclosed in fruits like angiosperms.
The male gametophyte in gymnosperms is a free-living prothallus.
2

The nucellus, protected by envelopes, forms the ovule in gymnosperms, which develops into a naked seed.

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