DIFFERENT PLANT GROUPS

1. Which plants are included in Thallophyta? [S.S.C. Online CPO S.I. (T-I) 11.11.2022 (Shift-III)]

(a) Ulva, Chara and Cladophora
(b) Lichens, vascular plants and pteridophyta
(c) Rose, lotus and lichens
(d) Nostoc, rose and melon

Correct Answer: (a) Ulva, Chara and Cladophora

Solution:Ulva, Chara and Cladophora -
Thallophyta is a division of the plant kingdom that includes simple plants lacking well-defined roots, stems, and leaves. Algae are the primary members of this group, and Ulva, Chara, and Cladophora are all types of algae.

2. Which of the following is also called 'green algae'? [S.S.C. Online Graduate Level (T-I) 16.08.2021 (Shift-II)]

(a) Phaeophyceae
(b) Porphyridium
(c) Chlorophyceae
(d) Rhodophyceae

Correct Answer: (c) Chlorophyceae

Solution:Chlorophyceae -
Members of the class Chlorophyceae are commonly known as green algae due to the dominance of chlorophyll pigments.

3. Pine is an example of: [S.S.C. Online MTS (T-I) 20.08.2019 (Shift-III)]

(a) Pteridophyta
(b) Gymnosperm
(c) monocot
(d) angiosperms

Correct Answer: (b) Gymnosperm

Solution:Gymnosperm -
Pine trees are gymnosperms. Gymnosperms are seed-bearing vascular plants that do not produce flowers or fruits; their seeds are typically borne naked on cones.

4. Which of the following is a carnivorous plant? [S.S.C. Online Constable GD 22.02.2019 (Shift-I)]

(a) Venus flytrap
(b) Quaking Aspen
(c) Red Maple
(d) Peony

Correct Answer: (a) Venus flytrap

Solution:Venus flytrap -
The Venus flytrap is a well-known carnivorous plant that traps and digests insects to obtain nutrients.

5. Which of the following is not an example of Bryophyta? [S.S.C. Online MTS (T-I) 20.08.2019 (Shift-II)]

(a) Funaria
(b) Marchantia
(c) Chara
(d) Riccia

Correct Answer: (c) Chara

Solution:Chara -
Chara is a type of green alga and belongs to the division Thallophyta, not Bryophyta. Bryophytes include mosses (like Funaria), liverworts (like Marchantia and Riccia), and hornworts.

6. What is the common name of the members of family Phaeophyceae? [S.S.C. Online CHSL (T-I) 08.06.2022 (Shift-I)]

(a) Green algae
(b) Red algae
(c) Brown algae
(d) Blue green algae

Correct Answer: (c) Brown algae

Solution:Brown algae are the common name of the members of the family Phaeophyceae. Brown algae are a large group of multicellular algae within the Northern Hemisphere. Brown algae are the significant seaweeds of the temperate and polar regions.

The green algae comprise the Prasinodermophyta and its unnamed sister, which contains the Chlorophyta and Charophyta/Streptophyta.
Red algae, or Rhodophyta, are one of the oldest groups of eukaryotic algae.
Blue-green algae, also called cyanobacteria, are any of a large, heterogeneous group of prokaryotic, principally photosynthetic organisms.

7. Which organism among the following breaks down the food material outside the body and then absorbs it? [S.S.C. Online MTS (T-I) 27.10.2021 (Shift-II)]

(a) Ticks
(b) Leeches
(c) Yeast
(d) Lice

Correct Answer: (c) Yeast

Solution:Yeast -
Yeast is a fungus that exhibits extracellular digestion. It secretes enzymes outside its body to break down complex food materials into simpler substances, which are then absorbed.

8. Which of the following is not true about Angiosperms? [S.S.C. Online CHSL (T-1) 1.02.2017 (Shih-1)]

(a) Dominant phase is gametophytes
(b) Vascular bundles are present
(c) Spores are heterosporous
(d) Seeds are covered

Correct Answer: (a) Dominant phase is gametophytes

Solution:Dominant phase is gametophytes -
This statement is NOT true about Angiosperms. In angiosperms, the dominant phase of the life cycle is the sporophyte (the diploid, multicellular stage), while the gametophyte is reduced and dependent on the sporophyte.

9. Which of the following is not true about Gymnosperms? [S.S.C. Online CHSL (T-1) 30.01.2017 (Shift-11)]

(a) Dominant phase is saprophytes
(b) Vascular bundles are absent
(c) spores are heterosporous
(d) Flowers are absent

Correct Answer: (b) Vascular bundles are absent

Solution:Vascular bundles are absent -
This statement is NOT true about Gymnosperms. Gymnosperms are vascular plants, meaning they possess well-developed vascular bundles (xylem and phloem) for the transport of water and nutrients.

10. Ferns belong to which division of plants? [S.S.C. Online CHSL (T-1) 22.01.2017 (Shift-II)]

(a) Gymnosperms
(b) Angiosperms
(c) Thallophyta
(d) Pteridophyta

Correct Answer: (d) Pteridophyta

Solution:Pteridophyta -
Ferns belong to the division Pteridophyta, which includes vascular plants that reproduce via spores and have true roots, stems, and leaves but do not produce flowers or seeds.