Tag: introduction to angiosperms

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Multiple choice botany plant biology introduction to angiosperms phanerogams angiosperms

Find correct match
Column  I                 Column  II
a.  Sinigrin              (i)  Liliaceae
b.  Carthamin        (ii) Brassicaceae
c.  Atropine          (iii) Solanaceae
d.  Aloin               (v)  Asteraceae

  1. $a(ii),b(iv),c(iii),d(i)$
  2. $a(ii),b(iv),c(i),d(iii)$
  3. $a(i),b(ii),c(iii),d(iv)$
  4. $a(ii),b(ii),c(iv),d(iii)$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sinigrin is a glucosinolate that belongs to the family of glucosides found in some plants of the Brassicaceae family such as Brussels sprouts, broccoli etc. Carthamin is a natural red pigment obtained from safflower oilseed crops belongs to the family Asteraceae. Atropine and vasopressors act to combat bradycardia and hypotension and are derived from the plants that belong to the family Liliaceae.  Aloe vera produces secondary metabolites, such as aloin, which is used in cosmetics and this plant belongs to the family Solanaceae.

So, the correct option is ' a(ii),b(iv),c(i),d(iii)'.

Multiple choice botany plant biology introduction to angiosperms phanerogams angiosperms

The plant 'Hibisus' belongs to division _____

  1. Bryophta

  2. Pteridophyta

  3. Gymnosperms

  4. Angiosperms
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A.Bryophyta – chlorophyllous, aquatic, embryophytic, archegoniatic, plants in the plant kingdom. These are also called amphibian of the plant kingdom.

B.Pteridophyta – Chlorophyllous, terrestrial, embryophytic, tracheophytes in the plant kingdom. These are also called vascular cryptogams.

C.Gymnosperms – Naked seeded plants in the plant kingdom.

D.Angiosperms -  Fruit producing plants in the plant kingdom. These are highly advanced plants. Hibiscus is an angiosperm.

So, the correct option is ‘ Angiosperms’.

Multiple choice botany plant biology introduction to angiosperms phanerogams angiosperms

Consider the following statements:

(a) Plants are divided into five groups: Thallophytes, Bryophytes, Pteridophytes, gymnosperms, and Angiosperms.
(b) Monera is divided into Archaebacteria and Eubacteria.
(c) $Penicillium$ and Yeast both belong to group fungi.

Which of the above statements are correct?

  1. (a) and (b)

  2. (b) and (c)

  3. (a), (b) and (c)

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The first level of classification among plants depends on whether the plant body is well-differentiated or not. The next level of classification is based on whether the differentiated body has special vascular tissues for the transport of water and other substances. Further classification is based on the ability to bear seeds and whether the seeds are naked or enclosed within fruits. 
Monera is a kingdom that contains unicellular organisms with no nuclear membrane, such as bacteria. It can be divided into Archaebacteria and Eubacteria.
A fungus is any member of a large group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. Penicillium and Yeast both belong to group fungi.

Multiple choice botany plant biology introduction to angiosperms phanerogams angiosperms

The orchid plants, which are found growing on the trees, are

  1. Parasites

  2. Epiphytes

  3. Saprophytes

  4. Lithophytes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Different types of epiphytes may grow on the same tree, including orchids. The name 'epiphyte' comes from the Greek word 'epi' meaning 'upon' and 'phyton' meaning 'plant'

So, the correct answer is 'Epiphytes'

Multiple choice botany plant biology introduction to angiosperms phanerogams angiosperms

Umbrella plant is

  1. Melia azedarach

  2. Panicum decompositum

  3. Acetabularia

  4. Acacia oswaldii
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Melia azedarach is commonly known as the Persian lilac or umbrella tree due to its canopy shape. The other options refer to different types of plants or algae.

Multiple choice botany plant biology introduction to angiosperms phanerogams angiosperms

Characteristic of series thalamiflorae is

  1. Absence of disc below ovary

  2. Presence of nectariferous disc below ovary

  3. Presence of non-nectariferous disc below ovary

  4. Occurrence of gynophore
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In Bentham and Hooker's classification, the series Thalamiflorae is characterized by flowers having a superior ovary with the stamens inserted on the receptacle (thalamus) below the ovary, meaning there is an absence of a nectariferous disc below the ovary.

Multiple choice botany plant biology introduction to angiosperms phanerogams angiosperms

Match Column - I with Column - II and select the correct option from the codes given below.

Column - I  Column - II
A. Thallophyta 1. Marsilea
B. Bryophyta 2. Pinus
C. Pteridophyta 3. Ulothrix
D. Gymnospermae 4. Ficus
E. Angiospermae 5. Funaria

  1. A- 3, B- 5, C- 1, D- 4, E- 2

  2. A- 3, B- 5, C- 1, D- 2, E- 4

  3. A- 3, B- 5, C- 2, D- 1, E- 4

  4. A- 5, B- 3, C- 1, D- 2, E- 4
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ulothrix is a genus of filamentous green algae, generally found in fresh and marine water. They are eukaryotic and unicellular. The plant body consists of unbranched, uniseriate filaments. The Ulothrix is a thallophyte having undifferentiated bodies. Funaria are nonvascular plants, i.e., they do not have conductive tissues and they perform transport of water and nutrients by diffusion; they are cryptogamic, they are small in size; in their life cycle the lasting form is haploid (the gametophyte) and the sporophyte depends on the gametophyte to survive. Hence it is a bryophyte. The living species of heterosporous pteridophytes are small herbaceous perennials like Marsilea. These pteridophytes possess only one kind of non-sexual reproductive spores and possess the true fibro-vascular system, true roots, and leaves. The genus Pinus can be distinguished by long needles on very short shoots in bundles of 2,3, or 5, strobili on long shoots, and the shoots and foliage are strongly dimorphic. Male and female flowers are separate structures: the female flowers are the structures that will eventually become the familiar cones containing the seeds, and male flowers release pollen, which is then captured by the female cones. Gymnosperm seeds develop either on the surface of scales or leave, often modified to form cones. Thus pinus is a gymnosperm. Ficus is an angiosperm because they are seed-producing plants and have flowers, endosperm within the seeds, and the production of fruits that contain the seeds.

Multiple choice botany plant biology introduction to angiosperms phanerogams angiosperms

Find out and select the incorrect pair from the following.

  1. Phanerogamae- Gymnosperms and angiosperms

  2. Angiosperms- Monocotyledonous and dicotyledonous

  3. Cryptogamae- Bryophyta and Pteridophyta

  4. Pteridophytes- Horsetails and mosses
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Mosses are small flowerless plants that usually grow in dense green clumps or mats, in damp or shady locations. They are bryophytes in the nature.

The horsetails are a class in the Pteridophyta (ferns). They were one of the most important plant groups in the Palaeozoic era.
Therefore, the correct answer is option D.

Multiple choice botany plant biology introduction to angiosperms phanerogams angiosperms

.............. are the reproductive organs of flowering plants.

  1. Seeds

  2. Flowers

  3. Fruits

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Angiosperms are flowering plants. They reproduce by the formation of gametes and flowers act as reproductive organs. 
  • Parts of the flower include petals, sepals, one or more carpels (the female reproductive structure) and stamens (the male reproductive structure)
  • So, the correct answer is 'Flowers'