ECONOMIC BOTANY And OTHERS (Part-I)

31. Tartaric acid is not found in- [S.S.C. Online C.P.O.S.I. (T-1) 7.07.2017 (Shift-I)]

(a) Tamarind
(b) Grapes
(c) Raw mango
(d) Spinach

Correct Answer: (d) Spinach

Solution: Spinach
Tartaric acid is naturally found in tamarind, grapes, and raw mangoes, contributing to their sour taste. Spinach, however, contains oxalic acid, not tartaric acid.

32. Which of the following is not true about Bryophyte? [S.S.C. Online CHSL (T-1) 31.01.2017 (Shift-II)]

(a) The major stage is gametophytes.
(b) The main body of the plant is a haploid.
(c) Spores are homosporous.
(d) Flowers are present.

Correct Answer: (d) Flowers are present.

Solution: Flowers are present.
Bryophytes (mosses, liverworts, hornworts) are non-vascular plants that do not produce flowers. Their life cycle is dominated by the gametophyte stage, and the main plant body is haploid.

33. The sexual reproductive organs of aspergillus are: [S.S.C. Online Graduate Level (T-1) 29.08.2016 (Shift-I)]

(a) Spermatium and Oogonium
(b) Antheridium and Oogonium
(c) Spermatium and Ascogonium
(d) Antheridium and Ascogonium

Correct Answer: (d) Antheridium and Ascogonium

Solution:Antheridium and Ascogonium
In Aspergillus, a common fungus, the sexual reproductive organs are the antheridium (male gametangium) and the ascogonium (female gametangium), which participate in sexual reproduction leading to ascospores.

34. Who among the following bears flowers? [S.S.C. Online CHSL (T-1) 25.01.2017 (Shift-III)]

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

Correct Answer: (d) Angiosperms

Solution:

Angiosperms
Angiosperms are the only group among the options that bear flowers. They are flowering plants, characterized by seeds enclosed within an ovary, which develops into a fruit.

35. A type of asexual reproduction in which new plants are produced from roots, stems, leaves and buds is known as: [S.S.C. Online M.T.S. (T-1) 26.10.2021 (Shift-II)]

(a) Vegetative propagation
(b) Budding propagation
(c) Grafting propagation
(d) Layering propagation

Correct Answer: (a) Vegetative propagation

Solution:Vegetative propagation
Vegetative propagation is a type of asexual reproduction where new plants are generated from vegetative parts of the parent plant, such as roots, stems, leaves, or buds, without the involvement of seeds or spores.

36. The innermost part of a flower is called _____ . [S.S.C. Online C.H.S.L. (T-1) 06.08.2021 (Shift-II)]

(a) Petal
(b) Pistil
(c) Stamen
(d) Sepal

Correct Answer: (b) Pistil

Solution:Pistil
The innermost part of a flower is typically the pistil (or carpel), which is the female reproductive organ, consisting of the stigma, style, and ovary.

37. What is the small leaf-like structure of a flower called? [S.S.C. Online MTS (T-I) 4.10.2017 (Shift-I)]

(a) Sepals
(b) Petals
(c) Pistil
(d) Stamens

Correct Answer: (a) Sepals

Solution:Sepals
The small, leaf-like structures that enclose the developing bud and protect the inner parts of the flower are called sepals. They are usually green and form the outermost whorl of the flower.

38. What is pollination? [S.S.C. Online MTS (T-1) 18.09.2017 (Shift-I)]

(a) Transfer of pollen grains from anthers to the stigma
(b) Germination of pollen grains
(c) Ants visit flowers
(d) Growth of pollen tube in ovum

Correct Answer: (a) Transfer of pollen grains from anthers to the stigma

Solution:Transfer of pollen grains from anthers to the stigma
Pollination is the crucial process in flowering plants where pollen grains are transferred from the anther (male part) to the stigma (female part) of a flower, enabling fertilization.

39. The scientific name of Moringa oleifera is- [S.S.C. Online CHSL (T-I) 31.01.2017 (Shift-III) S.S.C. Online Constable GD 1.03.2019 (Shift-I)]

(a) Banyan
(b) Gulmohar
(c) Amla
(d) Drumstick

Correct Answer: (d) Drumstick

Solution:Drumstick - Moringa oleifera is the scientific name for the drumstick tree, also commonly known as the horseradish tree or ben oil tree. Its leaves, pods, and flowers are widely used for nutritional and medicinal purposes.