Tag: biology

Questions Related to biology

Approximately one hundred diseases and pests are reported on

morphology of angiosperms introduction to angiosperms morphology of flowering plants plant kingdom biology

  1. Wheat

  2. Gram

  3. Ground nut

  4. Rice

Show answer
Correct Option: A
Explanation:

Wheat is a common crop that is facing many pests and diseases problem. Such as Barley Yellow Dwarf, Black Chaff, Crown and Root Rot, Fusarium Head Blight (Scab), Leaf Rust., Tan Spot, Wheat Soil-borne Mosaic, and Wheat Streak Mosaic. But gram, groundnut, and rice are also having pests and diseases but not in large numbers in comparison to wheat.

Thus the correct option is A. 

Millets belong to

morphology of angiosperms introduction to angiosperms morphology of flowering plants plant kingdom biology

  1. Fabaceae

  2. Poaceae

  3. Liliaceae

  4. Asteraceae

Show answer
Correct Option: B
Explanation:

Poaceae or Gramineae is a large family of monocotyledonous flowering plants which are collectively referred to as grasses. It includes cereals, grasses of natural grasslands, bamboos. It is the most economically important plant family, providing staple foods from domesticated cereal crops such as maize, wheat, barley, millet. Millets are a group of highly variable small seed grasses which is widely grown worldwide as grains for human food and fodder.

So, the correct answer is 'Poaceae'

Jowar belong to family

morphology of angiosperms introduction to angiosperms morphology of flowering plants plant kingdom biology

  1. Glumaceae

  2. Gramineae /Poaceae

  3. Asteraceae/Compositae

  4. Malvaceae

Show answer
Correct Option: B

Wheat and rice belong to family

morphology of angiosperms introduction to angiosperms morphology of flowering plants plant kingdom biology

  1. Poaceae

  2. Rutaceae

  3. Cyperaceae

  4. Compositae

Show answer
Correct Option: A
Explanation:

Wheat and Rice belongs to family Poaceae.  The scientific name of wheat is Triticum aestivum. 

The scientific name of Rice is Oryza sativa.
So the correct option is A.

Vegetative nucleus occurs in

morphology of angiosperms introduction to angiosperms morphology of flowering plants plant kingdom biology

  1. All flowering plants

  2. All seed plants

  3. All vascular plants

  4. All embryophytes

Show answer
Correct Option: A

Which one of the following pairs is correctly matched?

morphology of angiosperms introduction to angiosperms morphology of flowering plants plant kingdom biology

  1. Chryanthemum- Natural parathyroid

  2. Leucaena - Dye

  3. Acacia- Essential oil

  4. Casuraina- Fodder

Show answer
Correct Option: A

Presence of staminode is characteristic feature of ____________.

morphology of angiosperms introduction to angiosperms morphology of flowering plants plant kingdom biology

  1. Caesalpinoideae

  2. Minosoideae

  3. Arecaceae

  4. Euphorbiaceae

Show answer
Correct Option: A

The alternate name for the family Palmae is?

morphology of angiosperms introduction to angiosperms morphology of flowering plants plant kingdom biology

  1. Poaceae

  2. Palmaceae

  3. Araceae

  4. Arecaceae

Show answer
Correct Option: A

How many of the following characters are suitable to pea plant in the vegetative stage

1. Superior ovary
2. Marginal placentation
3. Gamosepalous condition
4. Papilionaceous corolla
5. Zygomorphic flowers
6. Non-endospermic seeds
7. Stipulate leaves
8. Pinnate compound leaves
9. Root Nodules
10. Foliaceous stipules

morphology of angiosperms introduction to angiosperms morphology of flowering plants plant kingdom biology

  1. 10

  2. 6

  3. 7

  4. 4

Show answer
Correct Option: A
Explanation:

All of the above characters are seen in the pea plant in the vegetative stage 


1) It has a superior ovary because the ovary is attached to the receptacle above the attachment of other floral parts. 

2) It is said to have marginal placentation because the ovary in which the placenta forms a ridge along the ventral suture of the ovary and the ovules develop on two separate rows.
3) It is gamosepalous because the sepals are partly or completely united
4) It is papilionaceous corolla it has a corolla with usually five petals that include a large upper petal enclosing two lateral wings and a lower carina of two united petals.
5) It has zygomorphic flowers because the flower is bilaterally symmetrical 
6) It is said to have Non-endospermic seeds as because endosperm is absent in the pea seeds
7) It has stipulate leaves because of the presence of stipules near the node of leaves.
8)It has pinnately compound leaves because a row of leaflets forms on either side of an extension of the petiole called the rachis.
9) It has Root nodules because of the symbiotic relationship between nitrogen-fixing bacteria which forms nodules on roots.
10)it has foliaceous stipules because the stipules are green and expanded like leaves.
So, the correct option is A.

In flowering plants, the male gametes are formed by.

morphology of angiosperms introduction to angiosperms morphology of flowering plants plant kingdom biology

  1. Generative cell

  2. Uninucleate microspore

  3. Vegetative cell

  4. Pollen tube

Show answer
Correct Option: A