Tag: botany

Quizzes (264) Questions (5276)

Questions Related to botany

Multiple choice botany inflorescence introduction to inflorescence inflorescence and its type basics of leaf and flower

Rhipidium inflorescence of Solanum nigrum is

  1. Modified scorpiod cyme

  2. Helicoid cyme

  3. Capitulum

  4. Multiparous cyme
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

  1. Rhipidium is scorpioid cyme having all flowers in one plane.Ex. Solanum nigrum
  2. In helicoid cyme, the flowers are born on one side. Ex Begonia
  3. Capitulum also called Racemose head in which peduncle is flattened that form receptacle that holds centripetally arranged sessile flowers or floret surrounded by an involucre of bracts. Ex Sunflower Helianthus annuu.
  4. In multiparous cyme, the main branch converts into flower the old flower at the center and younger at the periphery while it produces lateral branch as well. Ex Calatropis.
So the correct option is "Modified scorpioid cyme".

Multiple choice botany inflorescence introduction to inflorescence inflorescence and its type basics of leaf and flower

Edible part of cauliflower is

  1. Cotyledons

  2. Mesocarp

  3. Endocarp

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

Edible part of the cauliflower is inflorescence which can be defined as the arrangement of flowers on the plant. Cauliflower is the member of family Brassica. Only the head part of cauliflower is eaten which is composed of a white inflorescence meristem.

Multiple choice botany inflorescence introduction to inflorescence inflorescence and its type basics of leaf and flower

Inflorescence having unisexual sessile flowers is

  1. Spike

  2. Spikelet

  3. Catkin

  4. Raceme
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A catkin is a slim, cylindrical cluster of flowers with no petals, usually wind-pollinated and sometimes insect pollinated. The female flowers in catkin are sessile and solitary in the axilla of a bractea longer than themselves. In spike, flowers are bisexual, sessile or non- pedicellate. In spikelet, flowers are hermaphrodite. In raceme, flowers are pedicellate an bisexual.

Multiple choice botany inflorescence introduction to inflorescence inflorescence and its type basics of leaf and flower

Inflorescence of sunflower is

  1. Umbel

  2. Cyathium

  3. Hypanthodium

  4. Capitulum
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Sunflower is an annual plant of family Asteraceae with a large head (capitulum), which is the characteristic inflorescence of sunflower. Depending upon the variety, the inflorescence may consist of ray flowers, disk flowers or both. The ovary of each flower is situated below the attachment of the corolla and stamens, a condition referred to as epigynous or inferior. This is the largest family of flowering plants
So, the correct answer is 'Capitulum'
Multiple choice botany inflorescence introduction to inflorescence inflorescence and its type basics of leaf and flower

The inflorescence found in the coconut plant is

  1. Spadix

  2. Compound spadix

  3. Compound spike

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

  1. The type of inflorescence in which flowers are protected by enveloping bracts known as a spathe. ex:-banana.
  2. The flowers are protected by spathe but the axis is branched. ex: palm and coconut.
  3. The axis is branched and the flowers are born sessile on the branches. ex: wheat.
  4. When the main axis is branched and flowers are arranged in a corymbose manner. ex:-cauliflower
So the correct option is "Compound spadix".

Multiple choice botany inflorescence introduction to inflorescence inflorescence and its type basics of leaf and flower

Axis between corolla and androecium is

  1. Anthophore

  2. Gynophore

  3. Gynandrophore

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

The axis or the internode that elongates between the corolla and androecium is called androphore. It is also called as gynandrophore. Anthophore is present between calyx and corolla. Gynophore is present between androecium and gynoecium.

Hence, the correct answer is 'Androphore'

Multiple choice botany inflorescence introduction to inflorescence inflorescence and its type basics of leaf and flower

A student observed $34$ inflorescence in Bougainvillea and $42$ inflorescence in Poinsettia. Find out the number of flowers in Bougainvillea and the number of female of flowers in Poinsettia respectively.

  1. $34, 126$
  2. $204, 164$
  3. $102, 42$
  4. $68$, indefinite
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The inflorescence in the Bougainvillea flower is a simple cyme or cymule. In the cymule, the peduncle ends in a flower and only 2 lateral branches. These are produced which also ends in flowers. Thus, 3 flowered inflorescences will be formed. Flowers are arranged in a basipetal manner. Since the inflorescence number will be given here 34. Thus, the total numbers of flowers would be $34 \times 3 = 102.$

Single female flower-like inflorescence of the Euphorbiaceae i.e. Poinsettia is called a cyathium. The single female flower of cyathium has 3 carpels syncarpous pistil. Also, the inflorescence number given here is 42. Thus hence the number of female flowers is 42.

So, the correct answer will be 102,42.

The correct option is C.

Multiple choice botany inflorescence introduction to inflorescence inflorescence and its type basics of leaf and flower

Cup-like structure developed from adnation of sepals, petals and stamens is

  1. Cyathium

  2. Hypanthodium

  3. Hypanthium

  4. Capitulum
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Hypanthium is the cup-like structure that develops from the fusion of sepals petals and stamens to the thalamus outgrowth and it is seen in the family Rosaceae. 

A. Cyathium is the inflorescence seen in Euphorbia in which a cup-shaped involucre surrounds pistillate flowers. 
B. Hypanthodium is the flask-shaped inflorescence, the male flowers are near the periphery while the female flowers are near the centre. Example, Ficus.
C. Hypanthium is the cup-like structure that develops from the fusion of sepals petals and stamens to the thalamus outgrowth and it is seen in the family Rosaceae
D. The capitulum is the head like inflorescence having an aggregation of the sessile flowers. Example, Asteraceae.
Hence, the correct answer is 'Hypanthium'

Multiple choice botany inflorescence introduction to inflorescence inflorescence and its type basics of leaf and flower

Consider the following statements.
(a) In racemose inflorescence the flowers are borne in a basipetal order.
(b) Epigynous flowers are seen in rose plants.

(c) In Brinjal, the ovary is superior.
Of these statements

  1. A and b are true but c is false

  2. A and c are true but b is false

  3. A and b are false but c is true

  4. B and c are true but a is false

  5. A and c are false but b is true
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

(a) In the racemose type of inflorescence, the youngest flower is borne near the apex and the oldest is borne at the base of the inflorescence. This is called the acropetal order. Basipetal order is seen in the cymose inflorescence.

(b) Rose belongs to the family wherein, the ovary is superior and present in a hypanthium, so the flowers in rose plants are hypogynous.
(c) Brinjal belongs to the family Solanaceae. It has hypogynous flowers as the ovary is superior.
Hence, the correct answer is 'A and B are false but C is true'.