Online Test — Plant Kingdom
15 Questions • 15 min • Chapter MCQ
15:00
Question 1 of 15
Members of Kingdom Plantae are mostly:
Prokaryotic heterotrophs
Eukaryotic photosynthetic autotrophs
Single-celled
Non-cellular
Explanation: Plants are eukaryotic, multicellular, chlorophyll-bearing autotrophs.
Question 2 of 15
The simple, undifferentiated plant body of an alga is a:
Cormus
Thallus
Mycelium
Rhizome
Explanation: Algae have a thallus, not differentiated into root, stem and leaf.
Question 3 of 15
Green algae (Chlorophyceae) store food mainly as:
Glycogen
Starch
Laminarin
Floridean starch
Explanation: Green algae store food as starch and have cellulose walls.
Question 4 of 15
The brown colour of Phaeophyceae is due to:
Phycoerythrin
Fucoxanthin
Chlorophyll b
Anthocyanin
Explanation: Fucoxanthin gives brown algae their colour.
Question 5 of 15
Agar, used in laboratory cultures, is obtained from:
Green algae
Brown algae
Red algae
Fungi
Explanation: Agar comes from red algae such as Gelidium and Gracilaria.
Question 6 of 15
Bryophytes are called the 'amphibians of the plant kingdom' because they:
Live in deserts
Need water for sexual reproduction
Have flowers
Bear seeds
Explanation: They live on land but need water for reproduction, like amphibians.
Question 7 of 15
Bryophytes lack:
Chlorophyll
Vascular tissue (xylem/phloem)
A gametophyte
Spores
Explanation: Bryophytes have no vascular tissue.
Question 8 of 15
The first true land plants to have vascular tissue are the:
Algae
Bryophytes
Pteridophytes
Gymnosperms
Explanation: Pteridophytes are the first plants with xylem and phloem.
Question 9 of 15
In pteridophytes, the dominant plant body is the:
Gametophyte
Sporophyte
Prothallus
Seed
Explanation: In pteridophytes the diploid sporophyte is dominant.
Question 10 of 15
Gymnosperms are characterised by:
Seeds enclosed in fruit
Naked seeds
No seeds
Flowers with petals
Explanation: Gymnosperms bear naked seeds, not enclosed in a fruit.
Question 11 of 15
Angiosperms differ from gymnosperms because their seeds are:
Naked
Enclosed inside a fruit
Absent
Always parasitic
Explanation: Angiosperm seeds are enclosed within the fruit.
Question 12 of 15
A unique feature of angiosperms is:
Double fertilisation
Naked seeds
Lack of flowers
No vascular tissue
Explanation: Double fertilisation is unique to angiosperms.
Question 13 of 15
A plant with one cotyledon and parallel leaf venation is a:
Dicotyledon
Monocotyledon
Gymnosperm
Bryophyte
Explanation: Monocots have one seed leaf and parallel venation.
Question 14 of 15
The alternation between a haploid gametophyte and a diploid sporophyte is called:
Alternation of generations
Double fertilisation
Heterospory
Pollination
Explanation: Plants show alternation of generations between n and 2n phases.
Question 15 of 15
The life cycle of seed plants, with a dominant diploid sporophyte, is:
Haplontic
Diplontic
Haplo-diplontic
Asexual only
Explanation: Seed plants show the diplontic life cycle.