Tag: know the plant world closely

Questions Related to know the plant world closely

A plant living symbiotically inside another plant is called

botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

  1. Saprophyte

  2. Endophyte

  3. Semiparasite

  4. Parasite

Show answer
Correct Option: B
Explanation:

A plant living symbiotically inside another plant is called endophyte because endophytes are plants that live within a plant for at least part of its life cycle without causing apparent disease.

So, the correct answer is 'Endophyte'.

Parasitic plants obtain nourishment through

botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

  1. Roots

  2. Haustoria

  3. Thorns

  4. Pores

Show answer
Correct Option: B
Explanation:
Haustoria is a slender projection from the root of a parasitic plant enabling the parasite to penetrate the tissues of its host and absorb nutrients from it.
So, the correct option is 'Haustoria'.

Which of the following conditions are developed due to monoculture.

botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

  1. Multiplication of parasites

  2. More food production

  3. Lessure of toxic chemicals

  4. Ecosystem balance is undisturbed

Show answer
Correct Option: A
Explanation:
Monoculture is a practice in which the same crop is grown at the same soil for a long period of time. Reusing the exact same soil, instead of rotating three or four different crops following a pre-determined cycle, can lead to plant pathogens and diseases.
So the correct option is ' Multiplication of parasites'.

Cucurbritaceae family shows:

botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

  1. Collateral, Conjoint and open vascular bundle

  2. Bi-Collateral, Conjoint and closed vascular bundle

  3. Collateral, Conjoint and closed vascular bundle

  4. Bi-Collateral, Conjoint and open vascular bundle

Show answer
Correct Option: A

The number of division in the plant kingdom with the plants producing embryo are

botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

  1. $1$

  2. $2$

  3. $4$

  4. `$3$

Show answer
Correct Option: A

Which heterotrophs feed on organic matters, dead plants and animals?

botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

  1. Omnivores

  2. Saprotrophs

  3. Herbivores

  4. Producer

Show answer
Correct Option: B

The plant having the largest flower is  

botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

  1. Total stem parasite

  2. Epiphyte

  3. Total root parasite

  4. Partial stem parasite

Show answer
Correct Option: C
Explanation:

The flower with the world's largest bloom is Rafflesia arnoldii. This rare flower is found in the rainforests of Indonesia. It can grow to be 3 feet across and weigh up to 15 pounds. It is a total root parasitic plant, with no visible leaves, roots, or stem. It attaches itself to the roots of host plant to obtain water and nutrients. 

Which of the following is a correct pair?

botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

  1. Cuscuta- Parasite

  2. Dischidia- Insectivorous

  3. Opuntia- Predator

  4. Capsella- Hydrophyte

Show answer
Correct Option: A
Explanation:

1st option is correctly matched as Cuscuta also known as dodder/arambel is a genus of about 100–170 species of yellow, orange, or red parasitic plants. 

2nd option is incorrectly matched as Dischidia is non-insectivorous. They are epiphytes native to tropical areas of China, India and most areas of Indo-China.
3rd option is incorrectly matched as Opuntia is not a predator, it is a genus in the cactus family, Cactaceae. The genus occurs naturally throughout North and South America.
4th option is incorrectly matched as Capsella is not a hydrophyte, it is a genus of herbaceous plant and biennial plants in the mustard family Brassicaceae. 
Therefore, the correct answer is option A.

Organisms that feed upon decaying matter are called as

botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

  1. Heterotrophs

  2. Saprophytes

  3. Myxophytes

  4. Autotrophs

Show answer
Correct Option: B
Explanation:

Depending upon the mode of nutrition the organisms are classified as autotroph and heterotroph. 

The autotrophs can synthesize their own food material from inorganic substances. 
The heterotrophs cannot synthesize their own food material. They have to obtain their food from other organisms. 
Saprophytes are one of the types heterotrophs. They are organisms which derive their food from dead and decayed organisms. 
Therefore, the correct answer is option B.

Which one of the following has a saprophytic mode of nutrition?

botany know the plant world closely nutrition and its types types of nutrition in plants different modes of nutrition in plants

  1. Roundworm

  2. Leech

  3. Mushroom

  4. Lice

Show answer
Correct Option: C
Explanation:

The mode of nutrition in which non-green plants take in nutrients in solution form from dead and decaying matter is called saprophytic or saprotrophic nutrition. Fungi, mushrooms, yeast and many bacteria are examples of saprophytes. Roundworms, leeches and lice are parasites, i.e., they live on or in another organism and get their nutrition from them.