Tag: biology

Questions Related to biology

The floral bud is enclosed by which part of the flower?

biology flower to flower parts of flower and its functions parts of a flower basics of leaf and flower growth and development in plants

  1. Sepals

  2. Petals

  3. Tepals

  4. Stamen

Show answer
Correct Option: A
Explanation:

Floral bud is the undeveloped or embryonic shoot which is protected by the sepals during bud stage which gets mature and it forms coloured petals that helps flower to attract pollinators.

So the correct option is 'Sepals'.

What are the characteristics associated with the flower?

biology flower to flower parts of flower and its functions parts of a flower basics of leaf and flower growth and development in plants

  1. Green leaves

  2. Colourful petals

  3. Green sepals

  4. Both B and C

Show answer
Correct Option: D
Explanation:


  1. Calyx which is considered as the outermost whorl and its unit is known as sepals and are green in colour helps in protection of bud of a flower.
  2. Corolla is the second nonessential unit and is composed of petals and are coloured which helps to attract pollinators.

So, the correct option is 'Both B and C'.

Bell shaped flowers are found in 

biology flower to flower parts of flower and its functions parts of a flower basics of leaf and flower growth and development in plants

  1. Maize

  2. Datura

  3. Chrysanthemum

  4. Marigold

Show answer
Correct Option: B
Explanation:

  1. Maize has an inflorescence of spikelets as flowers are born on an axis called rachilla surrounded by bracts.
  2. Datura flower is bell-shaped and a solitary flower.
  3. Chrysanthemum often shows solitary head inflorescence.
  4. Marigold has spike inflorescence means with short or no pedicel are elongated and unbranched peduncle.
So, the correct option is 'Datura'.

Flower is the part of the plant which

biology flower to flower parts of flower and its functions parts of a flower basics of leaf and flower growth and development in plants

  1. Forms the vegetable

  2. Forms the fruit

  3. Contains the stamens and pistil

  4. All of the above

Show answer
Correct Option: D
Explanation:

The flower is considered as the modified shoot that is meant for reproduction and contains the reproductive organs stamen (male reproductive part) and pistil (female reproductive part) and after fertilization, its parts convert into fruits and vegetables as a result of reproduction.

So, the correct option is 'All of the above'

The ovary contains the small structures called as 

biology flower to flower parts of flower and its functions parts of a flower basics of leaf and flower growth and development in plants

  1. Beads

  2. Ovules

  3. Pollens

  4. Both B and C

Show answer
Correct Option: B
Explanation:

Carpels, pistil or gynoecium are the female reproductive part of the flower that consists of a stigma that holds the pollen grains, the style that leads the path of pollen tube and ovary produce small structures called ovules or ovum (female gamete).

So the correct option is 'Ovule'

A clove represents a

biology flower to flower parts of flower and its functions parts of a flower basics of leaf and flower growth and development in plants

  1. Terminal bud

  2. Accessory bud

  3. Flower bud

  4. Vegetative bud

Show answer
Correct Option: C
Explanation:

Cloves represent the flower bud. They are aromatic.  They are flower buds of a tree Syzygium aromaticum belonging to the family Myrtaceae.

So the correct option is C.

Plants that produce sexually do not produce flower.

biology flower to flower parts of flower and its functions parts of a flower basics of leaf and flower growth and development in plants

  1. True

  2. False

Show answer
Correct Option: B
Explanation:
The flower is formed to begin the process of reproduction. The female parts will create an ovule, or unfertilized egg. The egg (or eggs) will remain in the ovary and wait to be fertilized. The male parts (in particular, the anther) will produce pollen, which contains the sperm needed to fertilize the egg.

So, the correct answer is 'False'.

Sexual reproduction of following plants was discovered by

biology flower to flower parts of flower and its functions parts of a flower basics of leaf and flower growth and development in plants

  1. Camerarius

  2. Nawaschin

  3. Strasburger

  4. Maheshwari

Show answer
Correct Option: A
Explanation:

A.Camerarius – He first discovered sexual reproduction in plants.

B.Nawaschin – He first discovered triple fusion and double fertilization in angiosperms.

C.Strasburger – He first discovered syngamy and monosporic embryo sac in angiosperms.

D.Maheswari – He first discovered the lab to land habit in plants.

So, the correct option is ‘Camerarius’.

VERY SHORT ANSWER TYPE
Match the parts in Column A with the flowers or parts of flower in Column B.

Column A Column B
(a)  Polyadelphous (i)   Polypetalous
(b)  Pollen grains (ii)   Calyx, corolla
(c)  Free petals (iii)   Nectar
(d)  Non-essential (iv)   Bombax
(e)  Sweet fragrant fluid (v)   Pollen sac
biology flower to flower parts of flower and its functions parts of a flower basics of leaf and flower growth and development in plants

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

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

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

  4. a-ii, b-v, c-i, d-iv, e-iii

Show answer
Correct Option: C
Explanation:

Free petals - Polypetalous 

Polyadelphous - Bombax
 Pollen grains - Pollen sac
Non-essential - Calyx, corolla
Sweet fragrant fluid - Nectar
So, the correct answer is 'a-iv, b-v, c-i, d-ii, e - iii'

Plant cells can usually be distinguished from animals cells because only plant cells possess 

component of the cell cell and cell organelles cell organelles cell: the unit of life biology cell as structural and functional unit basics of cell

  1. Mitochondria and lysosomes

  2. Chromosomes and lysosomes

  3. Chloroplast and cell wall

  4. Chloroplast and Golgi complex

Show answer
Correct Option: C
Explanation:

Plants are autotrophic organisms which manufacture their own food. Plant cells have chlorophyll containing chloroplasts which are involved in the process of photosynthesis. A plant cell is surrounded by cellulosic cell wall which is dead at maturity. Chloroplasts and cellulosic cell wall are characteristics of plant cells only.