Tag: taxonomic description of flower

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Questions Related to taxonomic description of flower

Multiple choice botany flower taxonomic description of flower technical terms related to flowers basics of leaf and flower

In a monoecious plant ........................

  1. Male and female sex organs are on different individuals.

  2. Male and female gametes are of two morphologically distinct types.

  3. Male and female sex organs are on the same individual.

  4. All the stamens are fused to form one unit.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

"Mono" means single so a monoecious plant is one that bears both male and female sex organs on same plant. The monoecious plant can produce bisexual flowers or unisexual flowers. A dioecious plant is one that bears both male and female sex organs on different plants. A dioecious plant will always produce unisexual flowers.

Multiple choice botany flower taxonomic description of flower technical terms related to flowers basics of leaf and flower

A flower is said to be complete when it has

  1. One whorl

  2. Three whorls

  3. Two whorls

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

A bisexual flower is a flower that contains all the four whorls such as petals, sepals, the male reproductive structure (stamen) and female reproductive structure (pistil). Hence it is also called as a complete or perfect flower. Thus the correct answer is 'Four whorls'.

Multiple choice botany flower taxonomic description of flower technical terms related to flowers basics of leaf and flower

Bisexual flowers which never open, demonstrate

  1. Cleistogamy

  2. Allogamy

  3. Autogamy

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

Some plants never open to ensure complete selfpollination. This condition is called cleistogamy e.g., Commelina bengalensis , Oxalis, Viola, etc. The cleistogamous flower are bisexual small, inconspicuous, colourless and do not secrete nectar.

Multiple choice botany flower taxonomic description of flower technical terms related to flowers basics of leaf and flower

Match the columns and find the correct option.

I II
(a) Pistils fuse together (i) Gametogenesis
(b) Formation of gametes (ii) Pistillate
(c) Hyphae of higher ascomycetes (iii) Syncarpous
(d) Unisexual female flower (iv) Dikaryotic

  1. a-iii, b-i, c-iv, d-ii

  2. a-iv, b-iii, c-i, d-ii

  3. a-ii, b-i, c-iv, d-iii

  4. a-i, b-ii, c-iv, d-iii
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
•When the carpels or pistils get fused, they are known as syncarpous.
•Formation of gametes from the diploid cells through meiosis is called gametogenesis.
•Hyphae of higher ascomycetes are dikaryotic because when the hyphae of two opposite strains fuse, karyogamy doesn't occur immediately and a binucleate condition is produced having nuclei from two different strains.
•A unisexual flower that has only female reproductive part is called pistillate.
Hence, the correct match is:
a-iii, b-i, c-iv, d-ii
So, the correct answer is A.
Multiple choice botany flower taxonomic description of flower technical terms related to flowers basics of leaf and flower

Consider the following statements with reference to serotaxonomy.
a. The antigen components of plants represent characteristics of taxonomic importance.
b. Both structural and reserve proteins can be used for the classification of plants.
c. Proteins of the same group from different organs are always comparable.
Which of these statements are correct?

  1. $1, 2$ and $3$
  2. $1$ and $2$
  3. $2$ and $3$
  4. $1$ and $3$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Serotaxonomy uses immunological properties of proteins to classify plants. All three statements regarding antigen components, protein types, and comparability are foundational to this approach.